https://openjdk.java.net/ 
/*
 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * questions.
 */
package javax.swing;

import java.util.*;

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.awt.print.*;

import java.beans.JavaBean;
import java.beans.BeanProperty;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import java.io.IOException;
import java.io.InvalidObjectException;

import javax.accessibility.*;

import javax.swing.event.*;
import javax.swing.plaf.*;
import javax.swing.table.*;
import javax.swing.border.*;

import java.text.NumberFormat;
import java.text.DateFormat;
import java.text.MessageFormat;
import java.util.List;

import javax.print.attribute.*;
import javax.print.PrintService;

import sun.awt.AWTAccessor;
import sun.awt.AWTAccessor.MouseEventAccessor;
import sun.reflect.misc.ReflectUtil;

import sun.swing.SwingUtilities2;
import sun.swing.SwingUtilities2.Section;
import static sun.swing.SwingUtilities2.Section.*;
import sun.swing.PrintingStatus;


The JTable is used to display and edit regular two-dimensional tables
of cells.
See How to Use Tables
in The Java Tutorial
for task-oriented documentation and examples of using JTable.


The JTable has many
facilities that make it possible to customize its rendering and editing
but provides defaults for these features so that simple tables can be
set up easily.  For example, to set up a table with 10 rows and 10
columns of numbers:

     TableModel dataModel = new AbstractTableModel() {
         public int getColumnCount() { return 10; }
         public int getRowCount() { return 10;}
         public Object getValueAt(int row, int col) { return Integer.valueOf(row*col); }
     };
     JTable table = new JTable(dataModel);
     JScrollPane scrollpane = new JScrollPane(table);



 JTables are typically placed inside of a JScrollPane. By default, a JTable will adjust its width such that a horizontal scrollbar is unnecessary. To allow for a horizontal scrollbar, invoke setAutoResizeMode with AUTO_RESIZE_OFF. Note that if you wish to use a JTable in a standalone
view (outside of a JScrollPane) and want the header displayed, you can get it using getTableHeader and display it separately. 
 To enable sorting and filtering of rows, use a RowSorter. You can set up a row sorter in either of two ways: 
    
  
  • Directly set the RowSorter. For example: table.setRowSorter(new TableRowSorter(model)). 
  • Set the autoCreateRowSorter property to true, so that the JTable creates a RowSorter for you. For example: setAutoCreateRowSorter(true). 



When designing applications that use the JTable it is worth paying
close attention to the data structures that will represent the table's data.
The DefaultTableModel is a model implementation that
uses a Vector of Vectors of Objects to
store the cell values. As well as copying the data from an
application into the DefaultTableModel,
it is also possible to wrap the data in the methods of the
TableModel interface so that the data can be passed to the
JTable directly, as in the example above. This often results
in more efficient applications because the model is free to choose the
internal representation that best suits the data.
A good rule of thumb for deciding whether to use the AbstractTableModel
or the DefaultTableModel is to use the AbstractTableModel
as the base class for creating subclasses and the DefaultTableModel
when subclassing is not required.


The "TableExample" directory in the demo area of the source distribution
gives a number of complete examples of JTable usage,
covering how the JTable can be used to provide an
editable view of data taken from a database and how to modify
the columns in the display to use specialized renderers and editors.


The JTable uses integers exclusively to refer to both the rows and the columns
of the model that it displays. The JTable simply takes a tabular range of cells
and uses getValueAt(int, int) to retrieve the
values from the model during painting.  It is important to remember that
the column and row indexes returned by various JTable methods
are in terms of the JTable (the view) and are not
necessarily the same indexes used by the model.


By default, columns may be rearranged in the JTable so that the
view's columns appear in a different order to the columns in the model.
This does not affect the implementation of the model at all: when the
columns are reordered, the JTable maintains the new order of the columns
internally and converts its column indices before querying the model.


So, when writing a TableModel, it is not necessary to listen for column
reordering events as the model will be queried in its own coordinate
system regardless of what is happening in the view.
In the examples area there is a demonstration of a sorting algorithm making
use of exactly this technique to interpose yet another coordinate system
where the order of the rows is changed, rather than the order of the columns.


Similarly when using the sorting and filtering functionality
provided by RowSorter the underlying
TableModel does not need to know how to do sorting,
rather RowSorter will handle it.  Coordinate
conversions will be necessary when using the row based methods of
JTable with the underlying TableModel.
All of JTables row based methods are in terms of the
RowSorter, which is not necessarily the same as that
of the underlying TableModel.  For example, the
selection is always in terms of JTable so that when
using RowSorter you will need to convert using
convertRowIndexToView or
convertRowIndexToModel.  The following shows how to
convert coordinates from JTable to that of the
underlying model:

  int[] selection = table.getSelectedRows();
  for (int i = 0; i < selection.length; i++) {
    selection[i] = table.convertRowIndexToModel(selection[i]);
  }
  // selection is now in terms of the underlying TableModel




By default if sorting is enabled JTable will persist the
selection and variable row heights in terms of the model on
sorting.  For example if row 0, in terms of the underlying model,
is currently selected, after the sort row 0, in terms of the
underlying model will be selected.  Visually the selection may
change, but in terms of the underlying model it will remain the
same.  The one exception to that is if the model index is no longer
visible or was removed.  For example, if row 0 in terms of model
was filtered out the selection will be empty after the sort.


J2SE 5 adds methods to JTable to provide convenient access to some common printing needs. Simple new print() methods allow for quick and easy addition of printing support to your application. In addition, a new getPrintable method is available for more advanced printing needs. 

As for all JComponent classes, you can use InputMap and ActionMap to associate an Action object with a KeyStroke and execute the action under specified conditions. 

Warning: Swing is not thread safe. For more
information see Swing's Threading
Policy.


Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing.  As of 1.4, support for long term storage
of all JavaBeans™
has been added to the java.beans package. Please see XMLEncoder. 
Author:Philip Milne, Shannon Hickey (printing support)
See Also:
Since:1.2
/**
 * The <code>JTable</code> is used to display and edit regular two-dimensional tables
 * of cells.
 * See <a href="http://docs.oracle.com/javase/tutorial/uiswing/components/table.html">How to Use Tables</a>
 * in <em>The Java Tutorial</em>
 * for task-oriented documentation and examples of using <code>JTable</code>.
 *
 * <p>
 * The <code>JTable</code> has many
 * facilities that make it possible to customize its rendering and editing
 * but provides defaults for these features so that simple tables can be
 * set up easily.  For example, to set up a table with 10 rows and 10
 * columns of numbers:
 *
 * <pre>
 *      TableModel dataModel = new AbstractTableModel() {
 *          public int getColumnCount() { return 10; }
 *          public int getRowCount() { return 10;}
 *          public Object getValueAt(int row, int col) { return Integer.valueOf(row*col); }
 *      };
 *      JTable table = new JTable(dataModel);
 *      JScrollPane scrollpane = new JScrollPane(table);
 * </pre>
 * <p>
 * {@code JTable}s are typically placed inside of a {@code JScrollPane}.  By
 * default, a {@code JTable} will adjust its width such that
 * a horizontal scrollbar is unnecessary.  To allow for a horizontal scrollbar,
 * invoke {@link #setAutoResizeMode} with {@code AUTO_RESIZE_OFF}.
 * Note that if you wish to use a <code>JTable</code> in a standalone
 * view (outside of a <code>JScrollPane</code>) and want the header
 * displayed, you can get it using {@link #getTableHeader} and
 * display it separately.
 * <p>
 * To enable sorting and filtering of rows, use a
 * {@code RowSorter}.
 * You can set up a row sorter in either of two ways:
 * <ul>
 *   <li>Directly set the {@code RowSorter}. For example:
 *        {@code table.setRowSorter(new TableRowSorter(model))}.
 *   <li>Set the {@code autoCreateRowSorter}
 *       property to {@code true}, so that the {@code JTable}
 *       creates a {@code RowSorter} for
 *       you. For example: {@code setAutoCreateRowSorter(true)}.
 * </ul>
 * <p>
 * When designing applications that use the <code>JTable</code> it is worth paying
 * close attention to the data structures that will represent the table's data.
 * The <code>DefaultTableModel</code> is a model implementation that
 * uses a <code>Vector</code> of <code>Vector</code>s of <code>Object</code>s to
 * store the cell values. As well as copying the data from an
 * application into the <code>DefaultTableModel</code>,
 * it is also possible to wrap the data in the methods of the
 * <code>TableModel</code> interface so that the data can be passed to the
 * <code>JTable</code> directly, as in the example above. This often results
 * in more efficient applications because the model is free to choose the
 * internal representation that best suits the data.
 * A good rule of thumb for deciding whether to use the <code>AbstractTableModel</code>
 * or the <code>DefaultTableModel</code> is to use the <code>AbstractTableModel</code>
 * as the base class for creating subclasses and the <code>DefaultTableModel</code>
 * when subclassing is not required.
 * <p>
 * The "TableExample" directory in the demo area of the source distribution
 * gives a number of complete examples of <code>JTable</code> usage,
 * covering how the <code>JTable</code> can be used to provide an
 * editable view of data taken from a database and how to modify
 * the columns in the display to use specialized renderers and editors.
 * <p>
 * The <code>JTable</code> uses integers exclusively to refer to both the rows and the columns
 * of the model that it displays. The <code>JTable</code> simply takes a tabular range of cells
 * and uses <code>getValueAt(int, int)</code> to retrieve the
 * values from the model during painting.  It is important to remember that
 * the column and row indexes returned by various <code>JTable</code> methods
 * are in terms of the <code>JTable</code> (the view) and are not
 * necessarily the same indexes used by the model.
 * <p>
 * By default, columns may be rearranged in the <code>JTable</code> so that the
 * view's columns appear in a different order to the columns in the model.
 * This does not affect the implementation of the model at all: when the
 * columns are reordered, the <code>JTable</code> maintains the new order of the columns
 * internally and converts its column indices before querying the model.
 * <p>
 * So, when writing a <code>TableModel</code>, it is not necessary to listen for column
 * reordering events as the model will be queried in its own coordinate
 * system regardless of what is happening in the view.
 * In the examples area there is a demonstration of a sorting algorithm making
 * use of exactly this technique to interpose yet another coordinate system
 * where the order of the rows is changed, rather than the order of the columns.
 * <p>
 * Similarly when using the sorting and filtering functionality
 * provided by <code>RowSorter</code> the underlying
 * <code>TableModel</code> does not need to know how to do sorting,
 * rather <code>RowSorter</code> will handle it.  Coordinate
 * conversions will be necessary when using the row based methods of
 * <code>JTable</code> with the underlying <code>TableModel</code>.
 * All of <code>JTable</code>s row based methods are in terms of the
 * <code>RowSorter</code>, which is not necessarily the same as that
 * of the underlying <code>TableModel</code>.  For example, the
 * selection is always in terms of <code>JTable</code> so that when
 * using <code>RowSorter</code> you will need to convert using
 * <code>convertRowIndexToView</code> or
 * <code>convertRowIndexToModel</code>.  The following shows how to
 * convert coordinates from <code>JTable</code> to that of the
 * underlying model:
 * <pre>
 *   int[] selection = table.getSelectedRows();
 *   for (int i = 0; i &lt; selection.length; i++) {
 *     selection[i] = table.convertRowIndexToModel(selection[i]);
 *   }
 *   // selection is now in terms of the underlying TableModel
 * </pre>
 * <p>
 * By default if sorting is enabled <code>JTable</code> will persist the
 * selection and variable row heights in terms of the model on
 * sorting.  For example if row 0, in terms of the underlying model,
 * is currently selected, after the sort row 0, in terms of the
 * underlying model will be selected.  Visually the selection may
 * change, but in terms of the underlying model it will remain the
 * same.  The one exception to that is if the model index is no longer
 * visible or was removed.  For example, if row 0 in terms of model
 * was filtered out the selection will be empty after the sort.
 * <p>
 * J2SE 5 adds methods to <code>JTable</code> to provide convenient access to some
 * common printing needs. Simple new {@link #print()} methods allow for quick
 * and easy addition of printing support to your application. In addition, a new
 * {@link #getPrintable} method is available for more advanced printing needs.
 * <p>
 * As for all <code>JComponent</code> classes, you can use
 * {@link InputMap} and {@link ActionMap} to associate an
 * {@link Action} object with a {@link KeyStroke} and execute the
 * action under specified conditions.
 * <p>
 * <strong>Warning:</strong> Swing is not thread safe. For more
 * information see <a
 * href="package-summary.html#threading">Swing's Threading
 * Policy</a>.
 * <p>
 * <strong>Warning:</strong>
 * Serialized objects of this class will not be compatible with
 * future Swing releases. The current serialization support is
 * appropriate for short term storage or RMI between applications running
 * the same version of Swing.  As of 1.4, support for long term storage
 * of all JavaBeans&trade;
 * has been added to the <code>java.beans</code> package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 * @author Philip Milne
 * @author Shannon Hickey (printing support)
 * @see javax.swing.table.DefaultTableModel
 * @see javax.swing.table.TableRowSorter
 * @since 1.2
 */
/* The first versions of the JTable, contained in Swing-0.1 through
 * Swing-0.4, were written by Alan Chung.
 */
@JavaBean(defaultProperty = "UI", description = "A component which displays data in a two dimensional grid.")
@SwingContainer(false)
@SuppressWarnings("serial") // Same-version serialization only
public class JTable extends JComponent implements TableModelListener, Scrollable,
    TableColumnModelListener, ListSelectionListener, CellEditorListener,
    Accessible, RowSorterListener
{
//
// Static Constants
//

    
See Also:
/**
     * @see #getUIClassID
     * @see #readObject
     */
    private static final String uiClassID = "TableUI";

    
Do not adjust column widths automatically; use a horizontal scrollbar instead. 
/** Do not adjust column widths automatically; use a horizontal scrollbar instead. */
    public static final int     AUTO_RESIZE_OFF = 0;

    
When a column is adjusted in the UI, adjust the next column the opposite way. 
/** When a column is adjusted in the UI, adjust the next column the opposite way. */
    public static final int     AUTO_RESIZE_NEXT_COLUMN = 1;

    
During UI adjustment, change subsequent columns to preserve the total width;
this is the default behavior. 
/** During UI adjustment, change subsequent columns to preserve the total width;
      * this is the default behavior. */
    public static final int     AUTO_RESIZE_SUBSEQUENT_COLUMNS = 2;

    
During all resize operations, apply adjustments to the last column only. 
/** During all resize operations, apply adjustments to the last column only. */
    public static final int     AUTO_RESIZE_LAST_COLUMN = 3;

    
During all resize operations, proportionately resize all columns. 
/** During all resize operations, proportionately resize all columns. */
    public static final int     AUTO_RESIZE_ALL_COLUMNS = 4;


    
Printing modes, used in printing JTables.

See Also:
  • print(PrintMode, MessageFormat, MessageFormat, boolean, PrintRequestAttributeSet, boolean)
  • getPrintable
Since:1.5
/**
     * Printing modes, used in printing <code>JTable</code>s.
     *
     * @see #print(JTable.PrintMode, MessageFormat, MessageFormat,
     *             boolean, PrintRequestAttributeSet, boolean)
     * @see #getPrintable
     * @since 1.5
     */
    public enum PrintMode {

        
Printing mode that prints the table at its current size,
spreading both columns and rows across multiple pages if necessary.

/**
         * Printing mode that prints the table at its current size,
         * spreading both columns and rows across multiple pages if necessary.
         */
        NORMAL,

        
Printing mode that scales the output smaller, if necessary,
to fit the table's entire width (and thereby all columns) on each page;
Rows are spread across multiple pages as necessary.

/**
         * Printing mode that scales the output smaller, if necessary,
         * to fit the table's entire width (and thereby all columns) on each page;
         * Rows are spread across multiple pages as necessary.
         */
        FIT_WIDTH
    }


//
// Instance Variables
//

    
The TableModel of the table. 
/** The <code>TableModel</code> of the table. */
    protected TableModel        dataModel;

    
The TableColumnModel of the table. 
/** The <code>TableColumnModel</code> of the table. */
    protected TableColumnModel  columnModel;

    
The ListSelectionModel of the table, used to keep track of row selections. 
/** The <code>ListSelectionModel</code> of the table, used to keep track of row selections. */
    protected ListSelectionModel selectionModel;

    
The TableHeader working with the table. 
/** The <code>TableHeader</code> working with the table. */
    protected JTableHeader      tableHeader;

    
The height in pixels of each row in the table. 
/** The height in pixels of each row in the table. */
    protected int               rowHeight;

    
The height in pixels of the margin between the cells in each row. 
/** The height in pixels of the margin between the cells in each row. */
    protected int               rowMargin;

    
The color of the grid. 
/** The color of the grid. */
    protected Color             gridColor;

    
The table draws horizontal lines between cells if showHorizontalLines is true. 
/** The table draws horizontal lines between cells if <code>showHorizontalLines</code> is true. */
    protected boolean           showHorizontalLines;

    
The table draws vertical lines between cells if showVerticalLines is true. 
/** The table draws vertical lines between cells if <code>showVerticalLines</code> is true. */
    protected boolean           showVerticalLines;

    
 Determines if the table automatically resizes the
 width of the table's columns to take up the entire width of the
 table, and how it does the resizing.

/**
     *  Determines if the table automatically resizes the
     *  width of the table's columns to take up the entire width of the
     *  table, and how it does the resizing.
     */
    protected int               autoResizeMode;

    
 The table will query the TableModel to build the default
 set of columns if this is true.

/**
     *  The table will query the <code>TableModel</code> to build the default
     *  set of columns if this is true.
     */
    protected boolean           autoCreateColumnsFromModel;

    
Used by the Scrollable interface to determine the initial visible area. 
/** Used by the <code>Scrollable</code> interface to determine the initial visible area. */
    protected Dimension         preferredViewportSize;

    
True if row selection is allowed in this table. 
/** True if row selection is allowed in this table. */
    protected boolean           rowSelectionAllowed;

    
Obsolete as of Java 2 platform v1.3.  Please use the
rowSelectionAllowed property and the
columnSelectionAllowed property of the
columnModel instead. Or use the
method getCellSelectionEnabled.

/**
     * Obsolete as of Java 2 platform v1.3.  Please use the
     * <code>rowSelectionAllowed</code> property and the
     * <code>columnSelectionAllowed</code> property of the
     * <code>columnModel</code> instead. Or use the
     * method <code>getCellSelectionEnabled</code>.
     */
    /*
     * If true, both a row selection and a column selection
     * can be non-empty at the same time, the selected cells are the
     * the cells whose row and column are both selected.
     */
    protected boolean           cellSelectionEnabled;

    
If editing, the Component that is handling the editing. 
/** If editing, the <code>Component</code> that is handling the editing. */
    protected transient Component       editorComp;

    
The active cell editor object, that overwrites the screen real estate occupied by the current cell and allows the user to change its contents. null if the table isn't currently editing. 
/**
     * The active cell editor object, that overwrites the screen real estate
     * occupied by the current cell and allows the user to change its contents.
     * {@code null} if the table isn't currently editing.
     */
    protected transient TableCellEditor cellEditor;

    
Identifies the column of the cell being edited. 
/** Identifies the column of the cell being edited. */
    protected transient int             editingColumn;

    
Identifies the row of the cell being edited. 
/** Identifies the row of the cell being edited. */
    protected transient int             editingRow;

   
A table of objects that display the contents of a cell,
indexed by class as declared in getColumnClass
in the TableModel interface.

/**
     * A table of objects that display the contents of a cell,
     * indexed by class as declared in <code>getColumnClass</code>
     * in the <code>TableModel</code> interface.
     */
    protected transient Hashtable<Object, Object> defaultRenderersByColumnClass;
    // Logicaly, the above is a Hashtable<Class<?>, TableCellRenderer>.
    // It is declared otherwise to accomodate using UIDefaults.

    
A table of objects that display and edit the contents of a cell,
indexed by class as declared in getColumnClass
in the TableModel interface.

/**
     * A table of objects that display and edit the contents of a cell,
     * indexed by class as declared in <code>getColumnClass</code>
     * in the <code>TableModel</code> interface.
     */
    protected transient Hashtable<Object, Object> defaultEditorsByColumnClass;
    // Logicaly, the above is a Hashtable<Class<?>, TableCellEditor>.
    // It is declared otherwise to accomodate using UIDefaults.

    
The foreground color of selected cells. 
/** The foreground color of selected cells. */
    protected Color selectionForeground;

    
The background color of selected cells. 
/** The background color of selected cells. */
    protected Color selectionBackground;

//
// Private state
//

    // WARNING: If you directly access this field you should also change the
    // SortManager.modelRowSizes field as well.
    private SizeSequence rowModel;
    private boolean dragEnabled;
    private boolean surrendersFocusOnKeystroke;
    private PropertyChangeListener editorRemover = null;
    
The last value of getValueIsAdjusting from the column selection models
columnSelectionChanged notification. Used to test if a repaint is
needed.

/**
     * The last value of getValueIsAdjusting from the column selection models
     * columnSelectionChanged notification. Used to test if a repaint is
     * needed.
     */
    private boolean columnSelectionAdjusting;
    
The last value of getValueIsAdjusting from the row selection models
valueChanged notification. Used to test if a repaint is needed.

/**
     * The last value of getValueIsAdjusting from the row selection models
     * valueChanged notification. Used to test if a repaint is needed.
     */
    private boolean rowSelectionAdjusting;

    
To communicate errors between threads during printing.

/**
     * To communicate errors between threads during printing.
     */
    private Throwable printError;

    
True when setRowHeight(int) has been invoked.

/**
     * True when setRowHeight(int) has been invoked.
     */
    private boolean isRowHeightSet;

    
If true, on a sort the selection is reset.

/**
     * If true, on a sort the selection is reset.
     */
    private boolean updateSelectionOnSort;

    
Information used in sorting.

/**
     * Information used in sorting.
     */
    private transient SortManager sortManager;

    
If true, when sorterChanged is invoked it's value is ignored.

/**
     * If true, when sorterChanged is invoked it's value is ignored.
     */
    private boolean ignoreSortChange;

    
Whether or not sorterChanged has been invoked.

/**
     * Whether or not sorterChanged has been invoked.
     */
    private boolean sorterChanged;

    
If true, any time the model changes a new RowSorter is set.

/**
     * If true, any time the model changes a new RowSorter is set.
     */
    private boolean autoCreateRowSorter;

    
Whether or not the table always fills the viewport height.

See Also:
/**
     * Whether or not the table always fills the viewport height.
     * @see #setFillsViewportHeight
     * @see #getScrollableTracksViewportHeight
     */
    private boolean fillsViewportHeight;

    
The drop mode for this component.

/**
     * The drop mode for this component.
     */
    private DropMode dropMode = DropMode.USE_SELECTION;

    
The drop location.

/**
     * The drop location.
     */
    private transient DropLocation dropLocation;

    
Flag to indicate UI update is in progress

/**
     * Flag to indicate UI update is in progress
     */
    private transient boolean updateInProgress;

    
A subclass of TransferHandler.DropLocation representing
a drop location for a JTable.

See Also:
  • getDropLocation
Since:1.6
/**
     * A subclass of <code>TransferHandler.DropLocation</code> representing
     * a drop location for a <code>JTable</code>.
     *
     * @see #getDropLocation
     * @since 1.6
     */
    public static final class DropLocation extends TransferHandler.DropLocation {
        private final int row;
        private final int col;
        private final boolean isInsertRow;
        private final boolean isInsertCol;

        private DropLocation(Point p, int row, int col,
                             boolean isInsertRow, boolean isInsertCol) {

            super(p);
            this.row = row;
            this.col = col;
            this.isInsertRow = isInsertRow;
            this.isInsertCol = isInsertCol;
        }

        
Returns the row index where a dropped item should be placed in the
table. Interpretation of the value depends on the return of
isInsertRow(). If that method returns
true this value indicates the index where a new
row should be inserted. Otherwise, it represents the value
of an existing row on which the data was dropped. This index is
in terms of the view.


-1 indicates that the drop occurred over empty space,
and no row could be calculated.

Returns:the drop row
/**
         * Returns the row index where a dropped item should be placed in the
         * table. Interpretation of the value depends on the return of
         * <code>isInsertRow()</code>. If that method returns
         * <code>true</code> this value indicates the index where a new
         * row should be inserted. Otherwise, it represents the value
         * of an existing row on which the data was dropped. This index is
         * in terms of the view.
         * <p>
         * <code>-1</code> indicates that the drop occurred over empty space,
         * and no row could be calculated.
         *
         * @return the drop row
         */
        public int getRow() {
            return row;
        }

        
Returns the column index where a dropped item should be placed in the
table. Interpretation of the value depends on the return of
isInsertColumn(). If that method returns
true this value indicates the index where a new
column should be inserted. Otherwise, it represents the value
of an existing column on which the data was dropped. This index is
in terms of the view.


-1 indicates that the drop occurred over empty space,
and no column could be calculated.

Returns:the drop row
/**
         * Returns the column index where a dropped item should be placed in the
         * table. Interpretation of the value depends on the return of
         * <code>isInsertColumn()</code>. If that method returns
         * <code>true</code> this value indicates the index where a new
         * column should be inserted. Otherwise, it represents the value
         * of an existing column on which the data was dropped. This index is
         * in terms of the view.
         * <p>
         * <code>-1</code> indicates that the drop occurred over empty space,
         * and no column could be calculated.
         *
         * @return the drop row
         */
        public int getColumn() {
            return col;
        }

        
Returns whether or not this location represents an insert
of a row.

Returns:whether or not this is an insert row
/**
         * Returns whether or not this location represents an insert
         * of a row.
         *
         * @return whether or not this is an insert row
         */
        public boolean isInsertRow() {
            return isInsertRow;
        }

        
Returns whether or not this location represents an insert
of a column.

Returns:whether or not this is an insert column
/**
         * Returns whether or not this location represents an insert
         * of a column.
         *
         * @return whether or not this is an insert column
         */
        public boolean isInsertColumn() {
            return isInsertCol;
        }

        
Returns a string representation of this drop location.
This method is intended to be used for debugging purposes,
and the content and format of the returned string may vary
between implementations.

Returns:a string representation of this drop location
/**
         * Returns a string representation of this drop location.
         * This method is intended to be used for debugging purposes,
         * and the content and format of the returned string may vary
         * between implementations.
         *
         * @return a string representation of this drop location
         */
        public String toString() {
            return getClass().getName()
                   + "[dropPoint=" + getDropPoint() + ","
                   + "row=" + row + ","
                   + "column=" + col + ","
                   + "insertRow=" + isInsertRow + ","
                   + "insertColumn=" + isInsertCol + "]";
        }
    }

//
// Constructors
//

    
Constructs a default JTable that is initialized with a default
data model, a default column model, and a default selection
model.

See Also:
/**
     * Constructs a default <code>JTable</code> that is initialized with a default
     * data model, a default column model, and a default selection
     * model.
     *
     * @see #createDefaultDataModel
     * @see #createDefaultColumnModel
     * @see #createDefaultSelectionModel
     */
    public JTable() {
        this(null, null, null);
    }

    
Constructs a JTable that is initialized with
dm as the data model, a default column model,
and a default selection model.

Params:
  • dm –        the data model for the table
See Also:
/**
     * Constructs a <code>JTable</code> that is initialized with
     * <code>dm</code> as the data model, a default column model,
     * and a default selection model.
     *
     * @param dm        the data model for the table
     * @see #createDefaultColumnModel
     * @see #createDefaultSelectionModel
     */
    public JTable(TableModel dm) {
        this(dm, null, null);
    }

    
Constructs a JTable that is initialized with
dm as the data model, cm
as the column model, and a default selection model.

Params:
  • dm –        the data model for the table
  • cm –        the column model for the table
See Also:
/**
     * Constructs a <code>JTable</code> that is initialized with
     * <code>dm</code> as the data model, <code>cm</code>
     * as the column model, and a default selection model.
     *
     * @param dm        the data model for the table
     * @param cm        the column model for the table
     * @see #createDefaultSelectionModel
     */
    public JTable(TableModel dm, TableColumnModel cm) {
        this(dm, cm, null);
    }

    
Constructs a JTable that is initialized with
dm as the data model, cm as the
column model, and sm as the selection model.
If any of the parameters are null this method
will initialize the table with the corresponding default model.
The autoCreateColumnsFromModel flag is set to false
if cm is non-null, otherwise it is set to true
and the column model is populated with suitable
TableColumns for the columns in dm.

Params:
  • dm –        the data model for the table
  • cm –        the column model for the table
  • sm –        the row selection model for the table
See Also:
/**
     * Constructs a <code>JTable</code> that is initialized with
     * <code>dm</code> as the data model, <code>cm</code> as the
     * column model, and <code>sm</code> as the selection model.
     * If any of the parameters are <code>null</code> this method
     * will initialize the table with the corresponding default model.
     * The <code>autoCreateColumnsFromModel</code> flag is set to false
     * if <code>cm</code> is non-null, otherwise it is set to true
     * and the column model is populated with suitable
     * <code>TableColumns</code> for the columns in <code>dm</code>.
     *
     * @param dm        the data model for the table
     * @param cm        the column model for the table
     * @param sm        the row selection model for the table
     * @see #createDefaultDataModel
     * @see #createDefaultColumnModel
     * @see #createDefaultSelectionModel
     */
    public JTable(TableModel dm, TableColumnModel cm, ListSelectionModel sm) {
        super();
        setLayout(null);

        setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
                           JComponent.getManagingFocusForwardTraversalKeys());
        setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
                           JComponent.getManagingFocusBackwardTraversalKeys());
        if (cm == null) {
            cm = createDefaultColumnModel();
            autoCreateColumnsFromModel = true;
        }
        setColumnModel(cm);

        if (sm == null) {
            sm = createDefaultSelectionModel();
        }
        setSelectionModel(sm);

    // Set the model last, that way if the autoCreatColumnsFromModel has
    // been set above, we will automatically populate an empty columnModel
    // with suitable columns for the new model.
        if (dm == null) {
            dm = createDefaultDataModel();
        }
        setModel(dm);

        initializeLocalVars();
        updateUI();
    }

    
Constructs a JTable with numRows
and numColumns of empty cells using
DefaultTableModel.  The columns will have
names of the form "A", "B", "C", etc.

Params:
  • numRows –           the number of rows the table holds
  • numColumns –        the number of columns the table holds
See Also:
/**
     * Constructs a <code>JTable</code> with <code>numRows</code>
     * and <code>numColumns</code> of empty cells using
     * <code>DefaultTableModel</code>.  The columns will have
     * names of the form "A", "B", "C", etc.
     *
     * @param numRows           the number of rows the table holds
     * @param numColumns        the number of columns the table holds
     * @see javax.swing.table.DefaultTableModel
     */
    public JTable(int numRows, int numColumns) {
        this(new DefaultTableModel(numRows, numColumns));
    }

    
Constructs a JTable to display the values in the
Vector of Vectors, rowData,
with column names, columnNames.  The
Vectors contained in rowData
should contain the values for that row. In other words,
the value of the cell at row 1, column 5 can be obtained
with the following code:

((Vector)rowData.elementAt(1)).elementAt(5);


Params:
  • rowData –           the data for the new table
  • columnNames –       names of each column
/**
     * Constructs a <code>JTable</code> to display the values in the
     * <code>Vector</code> of <code>Vectors</code>, <code>rowData</code>,
     * with column names, <code>columnNames</code>.  The
     * <code>Vectors</code> contained in <code>rowData</code>
     * should contain the values for that row. In other words,
     * the value of the cell at row 1, column 5 can be obtained
     * with the following code:
     *
     * <pre>((Vector)rowData.elementAt(1)).elementAt(5);</pre>
     *
     * @param rowData           the data for the new table
     * @param columnNames       names of each column
     */
    @SuppressWarnings("rawtypes")
    public JTable(Vector<? extends Vector> rowData, Vector<?> columnNames) {
        this(new DefaultTableModel(rowData, columnNames));
    }

    
Constructs a JTable to display the values in the two dimensional array,
rowData, with column names, columnNames.
rowData is an array of rows, so the value of the cell at row 1,
column 5 can be obtained with the following code:

 rowData[1][5]; 



All rows must be of the same length as columnNames.

Params:
  • rowData –           the data for the new table
  • columnNames –       names of each column
/**
     * Constructs a <code>JTable</code> to display the values in the two dimensional array,
     * <code>rowData</code>, with column names, <code>columnNames</code>.
     * <code>rowData</code> is an array of rows, so the value of the cell at row 1,
     * column 5 can be obtained with the following code:
     *
     * <pre> rowData[1][5]; </pre>
     * <p>
     * All rows must be of the same length as <code>columnNames</code>.
     *
     * @param rowData           the data for the new table
     * @param columnNames       names of each column
     */
    public JTable(final Object[][] rowData, final Object[] columnNames) {
        this(new AbstractTableModel() {
            public String getColumnName(int column) { return columnNames[column].toString(); }
            public int getRowCount() { return rowData.length; }
            public int getColumnCount() { return columnNames.length; }
            public Object getValueAt(int row, int col) { return rowData[row][col]; }
            public boolean isCellEditable(int row, int column) { return true; }
            public void setValueAt(Object value, int row, int col) {
                rowData[row][col] = value;
                fireTableCellUpdated(row, col);
            }
        });
    }

    
Calls the configureEnclosingScrollPane method.

See Also:
  • configureEnclosingScrollPane
/**
     * Calls the <code>configureEnclosingScrollPane</code> method.
     *
     * @see #configureEnclosingScrollPane
     */
    public void addNotify() {
        super.addNotify();
        configureEnclosingScrollPane();
    }

    
If this JTable is the viewportView of an enclosing JScrollPane
(the usual situation), configure this ScrollPane by, amongst other things,
installing the table's tableHeader as the columnHeaderView of the scroll pane.
When a JTable is added to a JScrollPane in the usual way,
using new JScrollPane(myTable), addNotify is
called in the JTable (when the table is added to the viewport).
JTable's addNotify method in turn calls this method,
which is protected so that this default installation procedure can
be overridden by a subclass.

See Also:
  • addNotify
/**
     * If this <code>JTable</code> is the <code>viewportView</code> of an enclosing <code>JScrollPane</code>
     * (the usual situation), configure this <code>ScrollPane</code> by, amongst other things,
     * installing the table's <code>tableHeader</code> as the <code>columnHeaderView</code> of the scroll pane.
     * When a <code>JTable</code> is added to a <code>JScrollPane</code> in the usual way,
     * using <code>new JScrollPane(myTable)</code>, <code>addNotify</code> is
     * called in the <code>JTable</code> (when the table is added to the viewport).
     * <code>JTable</code>'s <code>addNotify</code> method in turn calls this method,
     * which is protected so that this default installation procedure can
     * be overridden by a subclass.
     *
     * @see #addNotify
     */
    protected void configureEnclosingScrollPane() {
        Container parent = SwingUtilities.getUnwrappedParent(this);
        if (parent instanceof JViewport) {
            JViewport port = (JViewport) parent;
            Container gp = port.getParent();
            if (gp instanceof JScrollPane) {
                JScrollPane scrollPane = (JScrollPane)gp;
                // Make certain we are the viewPort's view and not, for
                // example, the rowHeaderView of the scrollPane -
                // an implementor of fixed columns might do this.
                JViewport viewport = scrollPane.getViewport();
                if (viewport == null ||
                        SwingUtilities.getUnwrappedView(viewport) != this) {
                    return;
                }
                scrollPane.setColumnHeaderView(getTableHeader());
                // configure the scrollpane for any LAF dependent settings
                configureEnclosingScrollPaneUI();
            }
        }
    }

    
This is a sub-part of configureEnclosingScrollPane() that configures
anything on the scrollpane that may change when the look and feel
changes. It needed to be split out from configureEnclosingScrollPane() so
that it can be called from updateUI() when the LAF changes without
causing the regression found in bug 6687962. This was because updateUI()
is called from the constructor which then caused
configureEnclosingScrollPane() to be called by the constructor which
changes its contract for any subclass that overrides it. So by splitting
it out in this way configureEnclosingScrollPaneUI() can be called both
from configureEnclosingScrollPane() and updateUI() in a safe manor.

/**
     * This is a sub-part of configureEnclosingScrollPane() that configures
     * anything on the scrollpane that may change when the look and feel
     * changes. It needed to be split out from configureEnclosingScrollPane() so
     * that it can be called from updateUI() when the LAF changes without
     * causing the regression found in bug 6687962. This was because updateUI()
     * is called from the constructor which then caused
     * configureEnclosingScrollPane() to be called by the constructor which
     * changes its contract for any subclass that overrides it. So by splitting
     * it out in this way configureEnclosingScrollPaneUI() can be called both
     * from configureEnclosingScrollPane() and updateUI() in a safe manor.
     */
    private void configureEnclosingScrollPaneUI() {
        Container parent = SwingUtilities.getUnwrappedParent(this);
        if (parent instanceof JViewport) {
            JViewport port = (JViewport) parent;
            Container gp = port.getParent();
            if (gp instanceof JScrollPane) {
                JScrollPane scrollPane = (JScrollPane)gp;
                // Make certain we are the viewPort's view and not, for
                // example, the rowHeaderView of the scrollPane -
                // an implementor of fixed columns might do this.
                JViewport viewport = scrollPane.getViewport();
                if (viewport == null ||
                        SwingUtilities.getUnwrappedView(viewport) != this) {
                    return;
                }
                //  scrollPane.getViewport().setBackingStoreEnabled(true);
                Border border = scrollPane.getBorder();
                if (border == null || border instanceof UIResource) {
                    Border scrollPaneBorder =
                        UIManager.getBorder("Table.scrollPaneBorder");
                    if (scrollPaneBorder != null) {
                        scrollPane.setBorder(scrollPaneBorder);
                    }
                }
                // add JScrollBar corner component if available from LAF and not already set by the user
                Component corner =
                        scrollPane.getCorner(JScrollPane.UPPER_TRAILING_CORNER);
                if (corner == null || corner instanceof UIResource){
                    corner = null;
                    try {
                        corner = (Component) UIManager.get(
                                "Table.scrollPaneCornerComponent");
                    } catch (Exception e) {
                        // just ignore and don't set corner
                    }
                    scrollPane.setCorner(JScrollPane.UPPER_TRAILING_CORNER,
                            corner);
                }
            }
        }
    }

    
Calls the unconfigureEnclosingScrollPane method.

See Also:
  • unconfigureEnclosingScrollPane
/**
     * Calls the <code>unconfigureEnclosingScrollPane</code> method.
     *
     * @see #unconfigureEnclosingScrollPane
     */
    public void removeNotify() {
        KeyboardFocusManager.getCurrentKeyboardFocusManager().
            removePropertyChangeListener("permanentFocusOwner", editorRemover);
        editorRemover = null;
        unconfigureEnclosingScrollPane();
        super.removeNotify();
    }

    
Reverses the effect of configureEnclosingScrollPane
by replacing the columnHeaderView of the enclosing
scroll pane with null. JTable's
removeNotify method calls
this method, which is protected so that this default uninstallation
procedure can be overridden by a subclass.

See Also:
Since:1.3
/**
     * Reverses the effect of <code>configureEnclosingScrollPane</code>
     * by replacing the <code>columnHeaderView</code> of the enclosing
     * scroll pane with <code>null</code>. <code>JTable</code>'s
     * <code>removeNotify</code> method calls
     * this method, which is protected so that this default uninstallation
     * procedure can be overridden by a subclass.
     *
     * @see #removeNotify
     * @see #configureEnclosingScrollPane
     * @since 1.3
     */
    protected void unconfigureEnclosingScrollPane() {
        Container parent = SwingUtilities.getUnwrappedParent(this);
        if (parent instanceof JViewport) {
            JViewport port = (JViewport) parent;
            Container gp = port.getParent();
            if (gp instanceof JScrollPane) {
                JScrollPane scrollPane = (JScrollPane)gp;
                // Make certain we are the viewPort's view and not, for
                // example, the rowHeaderView of the scrollPane -
                // an implementor of fixed columns might do this.
                JViewport viewport = scrollPane.getViewport();
                if (viewport == null ||
                        SwingUtilities.getUnwrappedView(viewport) != this) {
                    return;
                }
                scrollPane.setColumnHeaderView(null);
                // remove ScrollPane corner if one was added by the LAF
                Component corner =
                        scrollPane.getCorner(JScrollPane.UPPER_TRAILING_CORNER);
                if (corner instanceof UIResource){
                    scrollPane.setCorner(JScrollPane.UPPER_TRAILING_CORNER,
                            null);
                }
            }
        }
    }

    void setUIProperty(String propertyName, Object value) {
        if (propertyName == "rowHeight") {
            if (!isRowHeightSet) {
                setRowHeight(((Number)value).intValue());
                isRowHeightSet = false;
            }
            return;
        }
        super.setUIProperty(propertyName, value);
    }

//
// Static Methods
//

    
Equivalent to new JScrollPane(aTable).

Params:
  • aTable – a JTable to be used for the scroll pane
Returns:a JScrollPane created using aTable
Deprecated:As of Swing version 1.0.2,
replaced by new JScrollPane(aTable).
/**
     * Equivalent to <code>new JScrollPane(aTable)</code>.
     *
     * @param aTable a {@code JTable} to be used for the scroll pane
     * @return a {@code JScrollPane} created using {@code aTable}
     * @deprecated As of Swing version 1.0.2,
     * replaced by <code>new JScrollPane(aTable)</code>.
     */
    @Deprecated
    public static JScrollPane createScrollPaneForTable(JTable aTable) {
        return new JScrollPane(aTable);
    }

//
// Table Attributes
//

    
Sets the tableHeader working with this JTable to newHeader.
It is legal to have a null tableHeader.

Params:
  • tableHeader –                       new tableHeader
See Also:
/**
     * Sets the <code>tableHeader</code> working with this <code>JTable</code> to <code>newHeader</code>.
     * It is legal to have a <code>null</code> <code>tableHeader</code>.
     *
     * @param   tableHeader                       new tableHeader
     * @see     #getTableHeader
     */
    @BeanProperty(description
            = "The JTableHeader instance which renders the column headers.")
    public void setTableHeader(JTableHeader tableHeader) {
        if (this.tableHeader != tableHeader) {
            JTableHeader old = this.tableHeader;
            // Release the old header
            if (old != null) {
                old.setTable(null);
            }
            this.tableHeader = tableHeader;
            if (tableHeader != null) {
                tableHeader.setTable(this);
            }
            firePropertyChange("tableHeader", old, tableHeader);
        }
    }

    
Returns the tableHeader used by this JTable.

See Also:
Returns: the tableHeader used by this table
/**
     * Returns the <code>tableHeader</code> used by this <code>JTable</code>.
     *
     * @return  the <code>tableHeader</code> used by this table
     * @see     #setTableHeader
     */
    public JTableHeader getTableHeader() {
        return tableHeader;
    }

    
Sets the height, in pixels, of all cells to rowHeight,
revalidates, and repaints.
The height of the cells will be equal to the row height minus
the row margin.

Params:
  • rowHeight –                       new row height
Throws:
See Also:
/**
     * Sets the height, in pixels, of all cells to <code>rowHeight</code>,
     * revalidates, and repaints.
     * The height of the cells will be equal to the row height minus
     * the row margin.
     *
     * @param   rowHeight                       new row height
     * @exception IllegalArgumentException      if <code>rowHeight</code> is
     *                                          less than 1
     * @see     #getRowHeight
     */
    @BeanProperty(description
            = "The height of the specified row.")
    public void setRowHeight(int rowHeight) {
        if (rowHeight <= 0) {
            throw new IllegalArgumentException("New row height less than 1");
        }
        int old = this.rowHeight;
        this.rowHeight = rowHeight;
        rowModel = null;
        if (sortManager != null) {
            sortManager.modelRowSizes = null;
        }
        isRowHeightSet = true;
        resizeAndRepaint();
        firePropertyChange("rowHeight", old, rowHeight);
    }

    
Returns the height of a table row, in pixels.

See Also:
Returns: the height in pixels of a table row
/**
     * Returns the height of a table row, in pixels.
     *
     * @return  the height in pixels of a table row
     * @see     #setRowHeight
     */
    public int getRowHeight() {
        return rowHeight;
    }

    private SizeSequence getRowModel() {
        if (rowModel == null) {
            rowModel = new SizeSequence(getRowCount(), getRowHeight());
        }
        return rowModel;
    }

    
Sets the height for row to rowHeight,
revalidates, and repaints. The height of the cells in this row
will be equal to the row height minus the row margin.

Params:
  • row –                             the row whose height is being
changed
  • rowHeight –                       new row height, in pixels
Throws:
Since:1.3
/**
     * Sets the height for <code>row</code> to <code>rowHeight</code>,
     * revalidates, and repaints. The height of the cells in this row
     * will be equal to the row height minus the row margin.
     *
     * @param   row                             the row whose height is being
                                                changed
     * @param   rowHeight                       new row height, in pixels
     * @exception IllegalArgumentException      if <code>rowHeight</code> is
     *                                          less than 1
     * @since 1.3
     */
    @BeanProperty(description
            = "The height in pixels of the cells in <code>row</code>")
    public void setRowHeight(int row, int rowHeight) {
        if (rowHeight <= 0) {
            throw new IllegalArgumentException("New row height less than 1");
        }
        getRowModel().setSize(row, rowHeight);
        if (sortManager != null) {
            sortManager.setViewRowHeight(row, rowHeight);
        }
        resizeAndRepaint();
    }

    
Returns the height, in pixels, of the cells in row.

Params:
  • row –              the row whose height is to be returned
Returns:the height, in pixels, of the cells in the row
Since:1.3
/**
     * Returns the height, in pixels, of the cells in <code>row</code>.
     * @param   row              the row whose height is to be returned
     * @return the height, in pixels, of the cells in the row
     * @since 1.3
     */
    public int getRowHeight(int row) {
        return (rowModel == null) ? getRowHeight() : rowModel.getSize(row);
    }

    
Sets the amount of empty space between cells in adjacent rows.

Params:
  • rowMargin –  the number of pixels between cells in a row
See Also:
/**
     * Sets the amount of empty space between cells in adjacent rows.
     *
     * @param  rowMargin  the number of pixels between cells in a row
     * @see     #getRowMargin
     */
    @BeanProperty(description
            = "The amount of space between cells.")
    public void setRowMargin(int rowMargin) {
        int old = this.rowMargin;
        this.rowMargin = rowMargin;
        resizeAndRepaint();
        firePropertyChange("rowMargin", old, rowMargin);
    }

    
Gets the amount of empty space, in pixels, between cells. Equivalent to:
getIntercellSpacing().height.

See Also:
Returns:the number of pixels between cells in a row
/**
     * Gets the amount of empty space, in pixels, between cells. Equivalent to:
     * <code>getIntercellSpacing().height</code>.
     * @return the number of pixels between cells in a row
     *
     * @see     #setRowMargin
     */
    public int getRowMargin() {
        return rowMargin;
    }

    
Sets the rowMargin and the columnMargin --
the height and width of the space between cells -- to
intercellSpacing.

Params:
  • intercellSpacing –        a Dimension
                                 specifying the new width
                                 and height between cells
See Also:
/**
     * Sets the <code>rowMargin</code> and the <code>columnMargin</code> --
     * the height and width of the space between cells -- to
     * <code>intercellSpacing</code>.
     *
     * @param   intercellSpacing        a <code>Dimension</code>
     *                                  specifying the new width
     *                                  and height between cells
     * @see     #getIntercellSpacing
     */
    @BeanProperty(bound = false, description
            = "The spacing between the cells, drawn in the background color of the JTable.")
    public void setIntercellSpacing(Dimension intercellSpacing) {
        // Set the rowMargin here and columnMargin in the TableColumnModel
        setRowMargin(intercellSpacing.height);
        getColumnModel().setColumnMargin(intercellSpacing.width);

        resizeAndRepaint();
    }

    
Returns the horizontal and vertical space between cells.
The default spacing is look and feel dependent.

See Also:
Returns: the horizontal and vertical spacing between cells
/**
     * Returns the horizontal and vertical space between cells.
     * The default spacing is look and feel dependent.
     *
     * @return  the horizontal and vertical spacing between cells
     * @see     #setIntercellSpacing
     */
    public Dimension getIntercellSpacing() {
        return new Dimension(getColumnModel().getColumnMargin(), rowMargin);
    }

    
Sets the color used to draw grid lines to gridColor and redisplays.
The default color is look and feel dependent.

Params:
  • gridColor –                       the new color of the grid lines
Throws:
See Also:
/**
     * Sets the color used to draw grid lines to <code>gridColor</code> and redisplays.
     * The default color is look and feel dependent.
     *
     * @param   gridColor                       the new color of the grid lines
     * @exception IllegalArgumentException      if <code>gridColor</code> is <code>null</code>
     * @see     #getGridColor
     */
    @BeanProperty(description
            = "The grid color.")
    public void setGridColor(Color gridColor) {
        if (gridColor == null) {
            throw new IllegalArgumentException("New color is null");
        }
        Color old = this.gridColor;
        this.gridColor = gridColor;
        firePropertyChange("gridColor", old, gridColor);
        // Redraw
        repaint();
    }

    
Returns the color used to draw grid lines.
The default color is look and feel dependent.

See Also:
Returns: the color used to draw grid lines
/**
     * Returns the color used to draw grid lines.
     * The default color is look and feel dependent.
     *
     * @return  the color used to draw grid lines
     * @see     #setGridColor
     */
    public Color getGridColor() {
        return gridColor;
    }

    
 Sets whether the table draws grid lines around cells.
 If showGrid is true it does; if it is false it doesn't.
 There is no getShowGrid method as this state is held
 in two variables -- showHorizontalLines and showVerticalLines --
 each of which can be queried independently.

Params:
  • showGrid –                 true if table view should draw grid lines
See Also:
/**
     *  Sets whether the table draws grid lines around cells.
     *  If <code>showGrid</code> is true it does; if it is false it doesn't.
     *  There is no <code>getShowGrid</code> method as this state is held
     *  in two variables -- <code>showHorizontalLines</code> and <code>showVerticalLines</code> --
     *  each of which can be queried independently.
     *
     * @param   showGrid                 true if table view should draw grid lines
     *
     * @see     #setShowVerticalLines
     * @see     #setShowHorizontalLines
     */
    @BeanProperty(description
            = "The color used to draw the grid lines.")
    public void setShowGrid(boolean showGrid) {
        setShowHorizontalLines(showGrid);
        setShowVerticalLines(showGrid);

        // Redraw
        repaint();
    }

    
 Sets whether the table draws horizontal lines between cells.
 If showHorizontalLines is true it does; if it is false it doesn't.

Params:
  • showHorizontalLines –      true if table view should draw horizontal lines
See Also:
/**
     *  Sets whether the table draws horizontal lines between cells.
     *  If <code>showHorizontalLines</code> is true it does; if it is false it doesn't.
     *
     * @param   showHorizontalLines      true if table view should draw horizontal lines
     * @see     #getShowHorizontalLines
     * @see     #setShowGrid
     * @see     #setShowVerticalLines
     */
    @BeanProperty(description
            = "Whether horizontal lines should be drawn in between the cells.")
    public void setShowHorizontalLines(boolean showHorizontalLines) {
        boolean old = this.showHorizontalLines;
        this.showHorizontalLines = showHorizontalLines;
        firePropertyChange("showHorizontalLines", old, showHorizontalLines);

        // Redraw
        repaint();
    }

    
 Sets whether the table draws vertical lines between cells.
 If showVerticalLines is true it does; if it is false it doesn't.

Params:
  • showVerticalLines –              true if table view should draw vertical lines
See Also:
/**
     *  Sets whether the table draws vertical lines between cells.
     *  If <code>showVerticalLines</code> is true it does; if it is false it doesn't.
     *
     * @param   showVerticalLines              true if table view should draw vertical lines
     * @see     #getShowVerticalLines
     * @see     #setShowGrid
     * @see     #setShowHorizontalLines
     */
    @BeanProperty(description
            = "Whether vertical lines should be drawn in between the cells.")
    public void setShowVerticalLines(boolean showVerticalLines) {
        boolean old = this.showVerticalLines;
        this.showVerticalLines = showVerticalLines;
        firePropertyChange("showVerticalLines", old, showVerticalLines);
        // Redraw
        repaint();
    }

    
Returns true if the table draws horizontal lines between cells, false if it
doesn't. The default value is look and feel dependent.

See Also:
Returns: true if the table draws horizontal lines between cells, false if it
         doesn't
/**
     * Returns true if the table draws horizontal lines between cells, false if it
     * doesn't. The default value is look and feel dependent.
     *
     * @return  true if the table draws horizontal lines between cells, false if it
     *          doesn't
     * @see     #setShowHorizontalLines
     */
    public boolean getShowHorizontalLines() {
        return showHorizontalLines;
    }

    
Returns true if the table draws vertical lines between cells, false if it
doesn't. The default value is look and feel dependent.

See Also:
Returns: true if the table draws vertical lines between cells, false if it
         doesn't
/**
     * Returns true if the table draws vertical lines between cells, false if it
     * doesn't. The default value is look and feel dependent.
     *
     * @return  true if the table draws vertical lines between cells, false if it
     *          doesn't
     * @see     #setShowVerticalLines
     */
    public boolean getShowVerticalLines() {
        return showVerticalLines;
    }

    
Sets the table's auto resize mode when the table is resized. For further information on how the different resize modes work, see doLayout. 
Params:
  • mode – One of 5 legal values:
                  AUTO_RESIZE_OFF,
                  AUTO_RESIZE_NEXT_COLUMN,
                  AUTO_RESIZE_SUBSEQUENT_COLUMNS,
                  AUTO_RESIZE_LAST_COLUMN,
                  AUTO_RESIZE_ALL_COLUMNS
See Also:
/**
     * Sets the table's auto resize mode when the table is resized.  For further
     * information on how the different resize modes work, see
     * {@link #doLayout}.
     *
     * @param   mode One of 5 legal values:
     *                   AUTO_RESIZE_OFF,
     *                   AUTO_RESIZE_NEXT_COLUMN,
     *                   AUTO_RESIZE_SUBSEQUENT_COLUMNS,
     *                   AUTO_RESIZE_LAST_COLUMN,
     *                   AUTO_RESIZE_ALL_COLUMNS
     *
     * @see     #getAutoResizeMode
     * @see     #doLayout
     */
    @BeanProperty(enumerationValues = {
            "JTable.AUTO_RESIZE_OFF",
            "JTable.AUTO_RESIZE_NEXT_COLUMN",
            "JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS",
            "JTable.AUTO_RESIZE_LAST_COLUMN",
            "JTable.AUTO_RESIZE_ALL_COLUMNS"}, description
            = "Whether the columns should adjust themselves automatically.")
    public void setAutoResizeMode(int mode) {
        if (isValidAutoResizeMode(mode)) {
            int old = autoResizeMode;
            autoResizeMode = mode;
            resizeAndRepaint();
            if (tableHeader != null) {
                tableHeader.resizeAndRepaint();
            }
            firePropertyChange("autoResizeMode", old, autoResizeMode);
        }
    }

    private static boolean isValidAutoResizeMode(int mode) {
        return (mode == AUTO_RESIZE_OFF)
                || (mode == AUTO_RESIZE_NEXT_COLUMN)
                || (mode == AUTO_RESIZE_SUBSEQUENT_COLUMNS)
                || (mode == AUTO_RESIZE_LAST_COLUMN)
                || (mode == AUTO_RESIZE_ALL_COLUMNS);
    }

    
Returns the auto resize mode of the table.  The default mode
is AUTO_RESIZE_SUBSEQUENT_COLUMNS.

See Also:
Returns: the autoResizeMode of the table
/**
     * Returns the auto resize mode of the table.  The default mode
     * is AUTO_RESIZE_SUBSEQUENT_COLUMNS.
     *
     * @return  the autoResizeMode of the table
     *
     * @see     #setAutoResizeMode
     * @see     #doLayout
     */
    public int getAutoResizeMode() {
        return autoResizeMode;
    }

    
Sets this table's autoCreateColumnsFromModel flag.
This method calls createDefaultColumnsFromModel if
autoCreateColumnsFromModel changes from false to true.

Params:
  • autoCreateColumnsFromModel –   true if JTable should automatically create columns
See Also:
/**
     * Sets this table's <code>autoCreateColumnsFromModel</code> flag.
     * This method calls <code>createDefaultColumnsFromModel</code> if
     * <code>autoCreateColumnsFromModel</code> changes from false to true.
     *
     * @param   autoCreateColumnsFromModel   true if <code>JTable</code> should automatically create columns
     * @see     #getAutoCreateColumnsFromModel
     * @see     #createDefaultColumnsFromModel
     */
    @BeanProperty(description
            = "Automatically populates the columnModel when a new TableModel is submitted.")
    public void setAutoCreateColumnsFromModel(boolean autoCreateColumnsFromModel) {
        if (this.autoCreateColumnsFromModel != autoCreateColumnsFromModel) {
            boolean old = this.autoCreateColumnsFromModel;
            this.autoCreateColumnsFromModel = autoCreateColumnsFromModel;
            if (autoCreateColumnsFromModel) {
                createDefaultColumnsFromModel();
            }
            firePropertyChange("autoCreateColumnsFromModel", old, autoCreateColumnsFromModel);
        }
    }

    
Determines whether the table will create default columns from the model.
If true, setModel will clear any existing columns and
create new columns from the new model.  Also, if the event in
the tableChanged notification specifies that the
entire table changed, then the columns will be rebuilt.
The default is true.

See Also:
Returns: the autoCreateColumnsFromModel of the table
/**
     * Determines whether the table will create default columns from the model.
     * If true, <code>setModel</code> will clear any existing columns and
     * create new columns from the new model.  Also, if the event in
     * the <code>tableChanged</code> notification specifies that the
     * entire table changed, then the columns will be rebuilt.
     * The default is true.
     *
     * @return  the autoCreateColumnsFromModel of the table
     * @see     #setAutoCreateColumnsFromModel
     * @see     #createDefaultColumnsFromModel
     */
    public boolean getAutoCreateColumnsFromModel() {
        return autoCreateColumnsFromModel;
    }

    
Creates default columns for the table from
the data model using the getColumnCount method
defined in the TableModel interface.


Clears any existing columns before creating the
new columns based on information from the model.

See Also:
  • getAutoCreateColumnsFromModel
/**
     * Creates default columns for the table from
     * the data model using the <code>getColumnCount</code> method
     * defined in the <code>TableModel</code> interface.
     * <p>
     * Clears any existing columns before creating the
     * new columns based on information from the model.
     *
     * @see     #getAutoCreateColumnsFromModel
     */
    public void createDefaultColumnsFromModel() {
        TableModel m = getModel();
        if (m != null) {
            // Remove any current columns
            TableColumnModel cm = getColumnModel();
            while (cm.getColumnCount() > 0) {
                cm.removeColumn(cm.getColumn(0));
            }

            // Create new columns from the data model info
            for (int i = 0; i < m.getColumnCount(); i++) {
                TableColumn newColumn = new TableColumn(i);
                addColumn(newColumn);
            }
        }
    }

    
Sets a default cell renderer to be used if no renderer has been set in
a TableColumn. If renderer is null,
removes the default renderer for this column class.

Params:
  • columnClass –     set the default cell renderer for this columnClass
  • renderer –        default cell renderer to be used for this
                        columnClass
See Also:
/**
     * Sets a default cell renderer to be used if no renderer has been set in
     * a <code>TableColumn</code>. If renderer is <code>null</code>,
     * removes the default renderer for this column class.
     *
     * @param  columnClass     set the default cell renderer for this columnClass
     * @param  renderer        default cell renderer to be used for this
     *                         columnClass
     * @see     #getDefaultRenderer
     * @see     #setDefaultEditor
     */
    public void setDefaultRenderer(Class<?> columnClass, TableCellRenderer renderer) {
        if (renderer != null) {
            defaultRenderersByColumnClass.put(columnClass, renderer);
        }
        else {
            defaultRenderersByColumnClass.remove(columnClass);
        }
    }

    
Returns the cell renderer to be used when no renderer has been set in
a TableColumn. During the rendering of cells the renderer is fetched from
a Hashtable of entries according to the class of the cells in the column. If
there is no entry for this columnClass the method returns
the entry for the most specific superclass. The JTable installs entries
for Object, Number, and Boolean, all of which can be modified
or replaced.

Params:
  • columnClass –   return the default cell renderer
                       for this columnClass
See Also:
Returns: the renderer for this columnClass
/**
     * Returns the cell renderer to be used when no renderer has been set in
     * a <code>TableColumn</code>. During the rendering of cells the renderer is fetched from
     * a <code>Hashtable</code> of entries according to the class of the cells in the column. If
     * there is no entry for this <code>columnClass</code> the method returns
     * the entry for the most specific superclass. The <code>JTable</code> installs entries
     * for <code>Object</code>, <code>Number</code>, and <code>Boolean</code>, all of which can be modified
     * or replaced.
     *
     * @param   columnClass   return the default cell renderer
     *                        for this columnClass
     * @return  the renderer for this columnClass
     * @see     #setDefaultRenderer
     * @see     #getColumnClass
     */
    public TableCellRenderer getDefaultRenderer(Class<?> columnClass) {
        if (columnClass == null) {
            return null;
        }
        else {
            Object renderer = defaultRenderersByColumnClass.get(columnClass);
            if (renderer != null) {
                return (TableCellRenderer)renderer;
            }
            else {
                Class<?> c = columnClass.getSuperclass();
                if (c == null && columnClass != Object.class) {
                    c = Object.class;
                }
                return getDefaultRenderer(c);
            }
        }
    }

    
Sets a default cell editor to be used if no editor has been set in
a TableColumn. If no editing is required in a table, or a
particular column in a table, uses the isCellEditable
method in the TableModel interface to ensure that this
JTable will not start an editor in these columns.
If editor is null, removes the default editor for this
column class.

Params:
  • columnClass –  set the default cell editor for this columnClass
  • editor –   default cell editor to be used for this columnClass
See Also:
/**
     * Sets a default cell editor to be used if no editor has been set in
     * a <code>TableColumn</code>. If no editing is required in a table, or a
     * particular column in a table, uses the <code>isCellEditable</code>
     * method in the <code>TableModel</code> interface to ensure that this
     * <code>JTable</code> will not start an editor in these columns.
     * If editor is <code>null</code>, removes the default editor for this
     * column class.
     *
     * @param  columnClass  set the default cell editor for this columnClass
     * @param  editor   default cell editor to be used for this columnClass
     * @see     TableModel#isCellEditable
     * @see     #getDefaultEditor
     * @see     #setDefaultRenderer
     */
    public void setDefaultEditor(Class<?> columnClass, TableCellEditor editor) {
        if (editor != null) {
            defaultEditorsByColumnClass.put(columnClass, editor);
        }
        else {
            defaultEditorsByColumnClass.remove(columnClass);
        }
    }

    
Returns the editor to be used when no editor has been set in
a TableColumn. During the editing of cells the editor is fetched from
a Hashtable of entries according to the class of the cells in the column. If
there is no entry for this columnClass the method returns
the entry for the most specific superclass. The JTable installs entries
for Object, Number, and Boolean, all of which can be modified
or replaced.

Params:
  • columnClass –  return the default cell editor for this columnClass
See Also:
Returns:the default cell editor to be used for this columnClass
/**
     * Returns the editor to be used when no editor has been set in
     * a <code>TableColumn</code>. During the editing of cells the editor is fetched from
     * a <code>Hashtable</code> of entries according to the class of the cells in the column. If
     * there is no entry for this <code>columnClass</code> the method returns
     * the entry for the most specific superclass. The <code>JTable</code> installs entries
     * for <code>Object</code>, <code>Number</code>, and <code>Boolean</code>, all of which can be modified
     * or replaced.
     *
     * @param   columnClass  return the default cell editor for this columnClass
     * @return the default cell editor to be used for this columnClass
     * @see     #setDefaultEditor
     * @see     #getColumnClass
     */
    public TableCellEditor getDefaultEditor(Class<?> columnClass) {
        if (columnClass == null) {
            return null;
        }
        else {
            Object editor = defaultEditorsByColumnClass.get(columnClass);
            if (editor != null) {
                return (TableCellEditor)editor;
            }
            else {
                return getDefaultEditor(columnClass.getSuperclass());
            }
        }
    }

    
Turns on or off automatic drag handling. In order to enable automatic drag handling, this property should be set to true, and the table's TransferHandler needs to be non-null. The default value of the dragEnabled property is false. 
 The job of honoring this property, and recognizing a user drag gesture, lies with the look and feel implementation, and in particular, the table's TableUI. When automatic drag handling is enabled, most look and feels (including those that subclass BasicLookAndFeel) begin a drag and drop operation whenever the user presses the mouse button over an item (in single selection mode) or a selection (in other selection modes) and then moves the mouse a few pixels. Setting this property to true can therefore have a subtle effect on how selections behave. 
 If a look and feel is used that ignores this property, you can still begin a drag and drop operation by calling exportAsDrag on the table's TransferHandler. 
Params:
  • b – whether or not to enable automatic drag handling
Throws:
See Also:
Since:1.4
/**
     * Turns on or off automatic drag handling. In order to enable automatic
     * drag handling, this property should be set to {@code true}, and the
     * table's {@code TransferHandler} needs to be {@code non-null}.
     * The default value of the {@code dragEnabled} property is {@code false}.
     * <p>
     * The job of honoring this property, and recognizing a user drag gesture,
     * lies with the look and feel implementation, and in particular, the table's
     * {@code TableUI}. When automatic drag handling is enabled, most look and
     * feels (including those that subclass {@code BasicLookAndFeel}) begin a
     * drag and drop operation whenever the user presses the mouse button over
     * an item (in single selection mode) or a selection (in other selection
     * modes) and then moves the mouse a few pixels. Setting this property to
     * {@code true} can therefore have a subtle effect on how selections behave.
     * <p>
     * If a look and feel is used that ignores this property, you can still
     * begin a drag and drop operation by calling {@code exportAsDrag} on the
     * table's {@code TransferHandler}.
     *
     * @param b whether or not to enable automatic drag handling
     * @exception HeadlessException if
     *            <code>b</code> is <code>true</code> and
     *            <code>GraphicsEnvironment.isHeadless()</code>
     *            returns <code>true</code>
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see #getDragEnabled
     * @see #setTransferHandler
     * @see TransferHandler
     * @since 1.4
     */
    @BeanProperty(bound = false, description
            = "determines whether automatic drag handling is enabled")
    public void setDragEnabled(boolean b) {
        checkDragEnabled(b);
        dragEnabled = b;
    }

    private void checkDragEnabled(boolean b) {
        if (b && GraphicsEnvironment.isHeadless()) {
            throw new HeadlessException();
        }
    }

    
Returns whether or not automatic drag handling is enabled.

See Also:
Returns:the value of the dragEnabled property
Since:1.4
/**
     * Returns whether or not automatic drag handling is enabled.
     *
     * @return the value of the {@code dragEnabled} property
     * @see #setDragEnabled
     * @since 1.4
     */
    public boolean getDragEnabled() {
        return dragEnabled;
    }

    
Sets the drop mode for this component. For backward compatibility,
the default for this property is DropMode.USE_SELECTION.
Usage of one of the other modes is recommended, however, for an
improved user experience. DropMode.ON, for instance,
offers similar behavior of showing items as selected, but does so without
affecting the actual selection in the table.


JTable supports the following drop modes:

    
   
  • DropMode.USE_SELECTION
    • 
   
  • DropMode.ON
    • 
   
  • DropMode.INSERT
    • 
   
  • DropMode.INSERT_ROWS
    • 
   
  • DropMode.INSERT_COLS
    • 
   
  • DropMode.ON_OR_INSERT
    • 
   
  • DropMode.ON_OR_INSERT_ROWS
    • 
   
  • DropMode.ON_OR_INSERT_COLS
    • 




The drop mode is only meaningful if this component has a
TransferHandler that accepts drops.

Params:
  • dropMode – the drop mode to use
Throws:
See Also:
Since:1.6
/**
     * Sets the drop mode for this component. For backward compatibility,
     * the default for this property is <code>DropMode.USE_SELECTION</code>.
     * Usage of one of the other modes is recommended, however, for an
     * improved user experience. <code>DropMode.ON</code>, for instance,
     * offers similar behavior of showing items as selected, but does so without
     * affecting the actual selection in the table.
     * <p>
     * <code>JTable</code> supports the following drop modes:
     * <ul>
     *    <li><code>DropMode.USE_SELECTION</code></li>
     *    <li><code>DropMode.ON</code></li>
     *    <li><code>DropMode.INSERT</code></li>
     *    <li><code>DropMode.INSERT_ROWS</code></li>
     *    <li><code>DropMode.INSERT_COLS</code></li>
     *    <li><code>DropMode.ON_OR_INSERT</code></li>
     *    <li><code>DropMode.ON_OR_INSERT_ROWS</code></li>
     *    <li><code>DropMode.ON_OR_INSERT_COLS</code></li>
     * </ul>
     * <p>
     * The drop mode is only meaningful if this component has a
     * <code>TransferHandler</code> that accepts drops.
     *
     * @param dropMode the drop mode to use
     * @throws IllegalArgumentException if the drop mode is unsupported
     *         or <code>null</code>
     * @see #getDropMode
     * @see #getDropLocation
     * @see #setTransferHandler
     * @see TransferHandler
     * @since 1.6
     */
    public final void setDropMode(DropMode dropMode) {
        checkDropMode(dropMode);
        this.dropMode = dropMode;
    }

    private static void checkDropMode(DropMode dropMode) {
        if (dropMode != null) {
            switch (dropMode) {
                case USE_SELECTION:
                case ON:
                case INSERT:
                case INSERT_ROWS:
                case INSERT_COLS:
                case ON_OR_INSERT:
                case ON_OR_INSERT_ROWS:
                case ON_OR_INSERT_COLS:
                    return;
            }
        }
        throw new IllegalArgumentException(dropMode
                + ": Unsupported drop mode for table");
    }
    
Returns the drop mode for this component.

See Also:
Returns:the drop mode for this component
Since:1.6
/**
     * Returns the drop mode for this component.
     *
     * @return the drop mode for this component
     * @see #setDropMode
     * @since 1.6
     */
    public final DropMode getDropMode() {
        return dropMode;
    }

    
Calculates a drop location in this component, representing where a
drop at the given point should insert data.

Params:
  • p – the point to calculate a drop location for
Returns:the drop location, or null
/**
     * Calculates a drop location in this component, representing where a
     * drop at the given point should insert data.
     *
     * @param p the point to calculate a drop location for
     * @return the drop location, or <code>null</code>
     */
    DropLocation dropLocationForPoint(Point p) {
        DropLocation location = null;

        int row = rowAtPoint(p);
        int col = columnAtPoint(p);
        boolean outside = Boolean.TRUE == getClientProperty("Table.isFileList")
                          && SwingUtilities2.pointOutsidePrefSize(this, row, col, p);

        Rectangle rect = getCellRect(row, col, true);
        Section xSection, ySection;
        boolean between = false;
        boolean ltr = getComponentOrientation().isLeftToRight();

        switch(dropMode) {
            case USE_SELECTION:
            case ON:
                if (row == -1 || col == -1 || outside) {
                    location = new DropLocation(p, -1, -1, false, false);
                } else {
                    location = new DropLocation(p, row, col, false, false);
                }
                break;
            case INSERT:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, 0, 0, true, true);
                    break;
                }

                xSection = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);

                if (row == -1) {
                    if (xSection == LEADING) {
                        location = new DropLocation(p, getRowCount(), col, true, true);
                    } else if (xSection == TRAILING) {
                        location = new DropLocation(p, getRowCount(), col + 1, true, true);
                    } else {
                        location = new DropLocation(p, getRowCount(), col, true, false);
                    }
                } else if (xSection == LEADING || xSection == TRAILING) {
                    ySection = SwingUtilities2.liesInVertical(rect, p, true);
                    if (ySection == LEADING) {
                        between = true;
                    } else if (ySection == TRAILING) {
                        row++;
                        between = true;
                    }

                    location = new DropLocation(p, row,
                                                xSection == TRAILING ? col + 1 : col,
                                                between, true);
                } else {
                    if (SwingUtilities2.liesInVertical(rect, p, false) == TRAILING) {
                        row++;
                    }

                    location = new DropLocation(p, row, col, true, false);
                }

                break;
            case INSERT_ROWS:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (row == -1) {
                    location = new DropLocation(p, getRowCount(), col, true, false);
                    break;
                }

                if (SwingUtilities2.liesInVertical(rect, p, false) == TRAILING) {
                    row++;
                }

                location = new DropLocation(p, row, col, true, false);
                break;
            case ON_OR_INSERT_ROWS:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (row == -1) {
                    location = new DropLocation(p, getRowCount(), col, true, false);
                    break;
                }

                ySection = SwingUtilities2.liesInVertical(rect, p, true);
                if (ySection == LEADING) {
                    between = true;
                } else if (ySection == TRAILING) {
                    row++;
                    between = true;
                }

                location = new DropLocation(p, row, col, between, false);
                break;
            case INSERT_COLS:
                if (row == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (col == -1) {
                    location = new DropLocation(p, getColumnCount(), col, false, true);
                    break;
                }

                if (SwingUtilities2.liesInHorizontal(rect, p, ltr, false) == TRAILING) {
                    col++;
                }

                location = new DropLocation(p, row, col, false, true);
                break;
            case ON_OR_INSERT_COLS:
                if (row == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (col == -1) {
                    location = new DropLocation(p, row, getColumnCount(), false, true);
                    break;
                }

                xSection = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);
                if (xSection == LEADING) {
                    between = true;
                } else if (xSection == TRAILING) {
                    col++;
                    between = true;
                }

                location = new DropLocation(p, row, col, false, between);
                break;
            case ON_OR_INSERT:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, 0, 0, true, true);
                    break;
                }

                xSection = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);

                if (row == -1) {
                    if (xSection == LEADING) {
                        location = new DropLocation(p, getRowCount(), col, true, true);
                    } else if (xSection == TRAILING) {
                        location = new DropLocation(p, getRowCount(), col + 1, true, true);
                    } else {
                        location = new DropLocation(p, getRowCount(), col, true, false);
                    }

                    break;
                }

                ySection = SwingUtilities2.liesInVertical(rect, p, true);
                if (ySection == LEADING) {
                    between = true;
                } else if (ySection == TRAILING) {
                    row++;
                    between = true;
                }

                location = new DropLocation(p, row,
                                            xSection == TRAILING ? col + 1 : col,
                                            between,
                                            xSection != MIDDLE);

                break;
            default:
                assert false : "Unexpected drop mode";
        }

        return location;
    }

    
Called to set or clear the drop location during a DnD operation.
In some cases, the component may need to use it's internal selection
temporarily to indicate the drop location. To help facilitate this,
this method returns and accepts as a parameter a state object.
This state object can be used to store, and later restore, the selection
state. Whatever this method returns will be passed back to it in
future calls, as the state parameter. If it wants the DnD system to
continue storing the same state, it must pass it back every time.
Here's how this is used:


Let's say that on the first call to this method the component decides
to save some state (because it is about to use the selection to show
a drop index). It can return a state object to the caller encapsulating
any saved selection state. On a second call, let's say the drop location
is being changed to something else. The component doesn't need to
restore anything yet, so it simply passes back the same state object
to have the DnD system continue storing it. Finally, let's say this
method is messaged with null. This means DnD
is finished with this component for now, meaning it should restore
state. At this point, it can use the state parameter to restore
said state, and of course return null since there's
no longer anything to store.

Params:
  • location – the drop location (as calculated by
       dropLocationForPoint) or null
       if there's no longer a valid drop location
  • state – the state object saved earlier for this component,
       or null
  • forDrop – whether or not the method is being called because an
       actual drop occurred
Returns:any saved state for this component, or null if none
/**
     * Called to set or clear the drop location during a DnD operation.
     * In some cases, the component may need to use it's internal selection
     * temporarily to indicate the drop location. To help facilitate this,
     * this method returns and accepts as a parameter a state object.
     * This state object can be used to store, and later restore, the selection
     * state. Whatever this method returns will be passed back to it in
     * future calls, as the state parameter. If it wants the DnD system to
     * continue storing the same state, it must pass it back every time.
     * Here's how this is used:
     * <p>
     * Let's say that on the first call to this method the component decides
     * to save some state (because it is about to use the selection to show
     * a drop index). It can return a state object to the caller encapsulating
     * any saved selection state. On a second call, let's say the drop location
     * is being changed to something else. The component doesn't need to
     * restore anything yet, so it simply passes back the same state object
     * to have the DnD system continue storing it. Finally, let's say this
     * method is messaged with <code>null</code>. This means DnD
     * is finished with this component for now, meaning it should restore
     * state. At this point, it can use the state parameter to restore
     * said state, and of course return <code>null</code> since there's
     * no longer anything to store.
     *
     * @param location the drop location (as calculated by
     *        <code>dropLocationForPoint</code>) or <code>null</code>
     *        if there's no longer a valid drop location
     * @param state the state object saved earlier for this component,
     *        or <code>null</code>
     * @param forDrop whether or not the method is being called because an
     *        actual drop occurred
     * @return any saved state for this component, or <code>null</code> if none
     */
    Object setDropLocation(TransferHandler.DropLocation location,
                           Object state,
                           boolean forDrop) {

        Object retVal = null;
        DropLocation tableLocation = (DropLocation)location;

        if (dropMode == DropMode.USE_SELECTION) {
            if (tableLocation == null) {
                if (!forDrop && state != null) {
                    clearSelection();

                    int[] rows = ((int[][])state)[0];
                    int[] cols = ((int[][])state)[1];
                    int[] anchleads = ((int[][])state)[2];

                    for (int row : rows) {
                        addRowSelectionInterval(row, row);
                    }

                    for (int col : cols) {
                        addColumnSelectionInterval(col, col);
                    }

                    SwingUtilities2.setLeadAnchorWithoutSelection(
                            getSelectionModel(), anchleads[1], anchleads[0]);

                    SwingUtilities2.setLeadAnchorWithoutSelection(
                            getColumnModel().getSelectionModel(),
                            anchleads[3], anchleads[2]);
                }
            } else {
                if (dropLocation == null) {
                    retVal = new int[][]{
                        getSelectedRows(),
                        getSelectedColumns(),
                        {getAdjustedIndex(getSelectionModel()
                             .getAnchorSelectionIndex(), true),
                         getAdjustedIndex(getSelectionModel()
                             .getLeadSelectionIndex(), true),
                         getAdjustedIndex(getColumnModel().getSelectionModel()
                             .getAnchorSelectionIndex(), false),
                         getAdjustedIndex(getColumnModel().getSelectionModel()
                             .getLeadSelectionIndex(), false)}};
                } else {
                    retVal = state;
                }

                if (tableLocation.getRow() == -1) {
                    clearSelectionAndLeadAnchor();
                } else {
                    setRowSelectionInterval(tableLocation.getRow(),
                                            tableLocation.getRow());
                    setColumnSelectionInterval(tableLocation.getColumn(),
                                               tableLocation.getColumn());
                }
            }
        }

        DropLocation old = dropLocation;
        dropLocation = tableLocation;
        firePropertyChange("dropLocation", old, dropLocation);

        return retVal;
    }

    
Returns the location that this component should visually indicate as the drop location during a DnD operation over the component, or null if no location is to currently be shown. 
 This method is not meant for querying the drop location from a TransferHandler, as the drop location is only set after the TransferHandler's canImport
has returned and has allowed for the location to be shown.


When this property changes, a property change event with
name "dropLocation" is fired by the component.

See Also:
Returns:the drop location
Since:1.6
/**
     * Returns the location that this component should visually indicate
     * as the drop location during a DnD operation over the component,
     * or {@code null} if no location is to currently be shown.
     * <p>
     * This method is not meant for querying the drop location
     * from a {@code TransferHandler}, as the drop location is only
     * set after the {@code TransferHandler}'s <code>canImport</code>
     * has returned and has allowed for the location to be shown.
     * <p>
     * When this property changes, a property change event with
     * name "dropLocation" is fired by the component.
     *
     * @return the drop location
     * @see #setDropMode
     * @see TransferHandler#canImport(TransferHandler.TransferSupport)
     * @since 1.6
     */
    @BeanProperty(bound = false)
    public final DropLocation getDropLocation() {
        return dropLocation;
    }

    
Specifies whether a RowSorter should be created for the table whenever its model changes. 
 When setAutoCreateRowSorter(true) is invoked, a 
TableRowSorter is immediately created and installed on the table. While the autoCreateRowSorter property remains true, every time the model is changed, a new 
TableRowSorter is created and set as the table's row sorter. The default value for the autoCreateRowSorter property is false. 
Params:
  • autoCreateRowSorter – whether or not a RowSorter should be automatically created
See Also:
Since:1.6
/**
     * Specifies whether a {@code RowSorter} should be created for the
     * table whenever its model changes.
     * <p>
     * When {@code setAutoCreateRowSorter(true)} is invoked, a {@code
     * TableRowSorter} is immediately created and installed on the
     * table.  While the {@code autoCreateRowSorter} property remains
     * {@code true}, every time the model is changed, a new {@code
     * TableRowSorter} is created and set as the table's row sorter.
     * The default value for the {@code autoCreateRowSorter}
     * property is {@code false}.
     *
     * @param autoCreateRowSorter whether or not a {@code RowSorter}
     *        should be automatically created
     * @see javax.swing.table.TableRowSorter
     * @since 1.6
     */
    @BeanProperty(preferred = true, description
            = "Whether or not to turn on sorting by default.")
    public void setAutoCreateRowSorter(boolean autoCreateRowSorter) {
        boolean oldValue = this.autoCreateRowSorter;
        this.autoCreateRowSorter = autoCreateRowSorter;
        if (autoCreateRowSorter) {
            setRowSorter(new TableRowSorter<TableModel>(getModel()));
        }
        firePropertyChange("autoCreateRowSorter", oldValue,
                           autoCreateRowSorter);
    }

    
Returns true if whenever the model changes, a new RowSorter should be created and installed as the table's sorter; otherwise, returns false. 
Returns:true if a RowSorter should be created when the model changes
Since:1.6
/**
     * Returns {@code true} if whenever the model changes, a new
     * {@code RowSorter} should be created and installed
     * as the table's sorter; otherwise, returns {@code false}.
     *
     * @return true if a {@code RowSorter} should be created when
     *         the model changes
     * @since 1.6
     */
    public boolean getAutoCreateRowSorter() {
        return autoCreateRowSorter;
    }

    
Specifies whether the selection should be updated after sorting.
If true, on sorting the selection is reset such that
the same rows, in terms of the model, remain selected.  The default
is true.

Params:
  • update – whether or not to update the selection on sorting
Since:1.6
/**
     * Specifies whether the selection should be updated after sorting.
     * If true, on sorting the selection is reset such that
     * the same rows, in terms of the model, remain selected.  The default
     * is true.
     *
     * @param update whether or not to update the selection on sorting
     * @since 1.6
     */
    @BeanProperty(expert = true, description
            = "Whether or not to update the selection on sorting")
    public void setUpdateSelectionOnSort(boolean update) {
        if (updateSelectionOnSort != update) {
            updateSelectionOnSort = update;
            firePropertyChange("updateSelectionOnSort", !update, update);
        }
    }

    
Returns true if the selection should be updated after sorting.

Returns:whether to update the selection on a sort
Since:1.6
/**
     * Returns true if the selection should be updated after sorting.
     *
     * @return whether to update the selection on a sort
     * @since 1.6
     */
    public boolean getUpdateSelectionOnSort() {
        return updateSelectionOnSort;
    }

    
Sets the RowSorter.  RowSorter is used
to provide sorting and filtering to a JTable.


This method clears the selection and resets any variable row heights.


This method fires a PropertyChangeEvent when appropriate,
with the property name "rowSorter".  For
backward-compatibility, this method fires an additional event with the
property name "sorter".


If the underlying model of the RowSorter differs from
that of this JTable undefined behavior will result.

Params:
  • sorter – the RowSorter; null turns
       sorting off
See Also:
Since:1.6
/**
     * Sets the <code>RowSorter</code>.  <code>RowSorter</code> is used
     * to provide sorting and filtering to a <code>JTable</code>.
     * <p>
     * This method clears the selection and resets any variable row heights.
     * <p>
     * This method fires a <code>PropertyChangeEvent</code> when appropriate,
     * with the property name <code>"rowSorter"</code>.  For
     * backward-compatibility, this method fires an additional event with the
     * property name <code>"sorter"</code>.
     * <p>
     * If the underlying model of the <code>RowSorter</code> differs from
     * that of this <code>JTable</code> undefined behavior will result.
     *
     * @param sorter the <code>RowSorter</code>; <code>null</code> turns
     *        sorting off
     * @see javax.swing.table.TableRowSorter
     * @since 1.6
     */
    @BeanProperty(description
            = "The table's RowSorter")
    public void setRowSorter(RowSorter<? extends TableModel> sorter) {
        RowSorter<? extends TableModel> oldRowSorter = null;
        if (sortManager != null) {
            oldRowSorter = sortManager.sorter;
            sortManager.dispose();
            sortManager = null;
        }
        rowModel = null;
        clearSelectionAndLeadAnchor();
        if (sorter != null) {
            sortManager = new SortManager(sorter);
        }
        resizeAndRepaint();
        firePropertyChange("rowSorter", oldRowSorter, sorter);
        firePropertyChange("sorter", oldRowSorter, sorter);
    }

    
Returns the object responsible for sorting.

Returns:the object responsible for sorting
Since:1.6
/**
     * Returns the object responsible for sorting.
     *
     * @return the object responsible for sorting
     * @since 1.6
     */
    public RowSorter<? extends TableModel> getRowSorter() {
        return (sortManager != null) ? sortManager.sorter : null;
    }

//
// Selection methods
//
    
Sets the table's selection mode to allow only single selections, a single
contiguous interval, or multiple intervals.


Note:
JTable provides all the methods for handling
column and row selection.  When setting states,
such as setSelectionMode, it not only
updates the mode for the row selection model but also sets similar
values in the selection model of the columnModel.
If you want to have the row and column selection models operating
in different modes, set them both directly.


Both the row and column selection models for JTable
default to using a DefaultListSelectionModel
so that JTable works the same way as the
JList. See the setSelectionMode method
in JList for details about the modes.

Params:
  • selectionMode – the mode used by the row and column selection models
See Also:
/**
     * Sets the table's selection mode to allow only single selections, a single
     * contiguous interval, or multiple intervals.
     * <P>
     * <b>Note:</b>
     * <code>JTable</code> provides all the methods for handling
     * column and row selection.  When setting states,
     * such as <code>setSelectionMode</code>, it not only
     * updates the mode for the row selection model but also sets similar
     * values in the selection model of the <code>columnModel</code>.
     * If you want to have the row and column selection models operating
     * in different modes, set them both directly.
     * <p>
     * Both the row and column selection models for <code>JTable</code>
     * default to using a <code>DefaultListSelectionModel</code>
     * so that <code>JTable</code> works the same way as the
     * <code>JList</code>. See the <code>setSelectionMode</code> method
     * in <code>JList</code> for details about the modes.
     *
     * @param selectionMode the mode used by the row and column selection models
     * @see JList#setSelectionMode
     */
    @BeanProperty(enumerationValues = {
            "ListSelectionModel.SINGLE_SELECTION",
            "ListSelectionModel.SINGLE_INTERVAL_SELECTION",
            "ListSelectionModel.MULTIPLE_INTERVAL_SELECTION"}, description
            = "The selection mode used by the row and column selection models.")
    public void setSelectionMode(int selectionMode) {
        clearSelection();
        getSelectionModel().setSelectionMode(selectionMode);
        getColumnModel().getSelectionModel().setSelectionMode(selectionMode);
    }

    
Sets whether the rows in this model can be selected.

Params:
  • rowSelectionAllowed –   true if this model will allow row selection
See Also:
/**
     * Sets whether the rows in this model can be selected.
     *
     * @param rowSelectionAllowed   true if this model will allow row selection
     * @see #getRowSelectionAllowed
     */
    @BeanProperty(visualUpdate = true, description
            = "If true, an entire row is selected for each selected cell.")
    public void setRowSelectionAllowed(boolean rowSelectionAllowed) {
        boolean old = this.rowSelectionAllowed;
        this.rowSelectionAllowed = rowSelectionAllowed;
        if (old != rowSelectionAllowed) {
            repaint();
        }
        firePropertyChange("rowSelectionAllowed", old, rowSelectionAllowed);
    }

    
Returns true if rows can be selected.

See Also:
Returns:true if rows can be selected, otherwise false
/**
     * Returns true if rows can be selected.
     *
     * @return true if rows can be selected, otherwise false
     * @see #setRowSelectionAllowed
     */
    public boolean getRowSelectionAllowed() {
        return rowSelectionAllowed;
    }

    
Sets whether the columns in this model can be selected.

Params:
  • columnSelectionAllowed –   true if this model will allow column selection
See Also:
/**
     * Sets whether the columns in this model can be selected.
     *
     * @param columnSelectionAllowed   true if this model will allow column selection
     * @see #getColumnSelectionAllowed
     */
    @BeanProperty(visualUpdate = true, description
            = "If true, an entire column is selected for each selected cell.")
    public void setColumnSelectionAllowed(boolean columnSelectionAllowed) {
        boolean old = columnModel.getColumnSelectionAllowed();
        columnModel.setColumnSelectionAllowed(columnSelectionAllowed);
        if (old != columnSelectionAllowed) {
            repaint();
        }
        firePropertyChange("columnSelectionAllowed", old, columnSelectionAllowed);
    }

    
Returns true if columns can be selected.

See Also:
Returns:true if columns can be selected, otherwise false
/**
     * Returns true if columns can be selected.
     *
     * @return true if columns can be selected, otherwise false
     * @see #setColumnSelectionAllowed
     */
    public boolean getColumnSelectionAllowed() {
        return columnModel.getColumnSelectionAllowed();
    }

    
Sets whether this table allows both a column selection and a
row selection to exist simultaneously. When set,
the table treats the intersection of the row and column selection
models as the selected cells. Override isCellSelected to
change this default behavior. This method is equivalent to setting
both the rowSelectionAllowed property and
columnSelectionAllowed property of the
columnModel to the supplied value.

Params:
  • cellSelectionEnabled –     true if simultaneous row and column
                                 selection is allowed
See Also:
/**
     * Sets whether this table allows both a column selection and a
     * row selection to exist simultaneously. When set,
     * the table treats the intersection of the row and column selection
     * models as the selected cells. Override <code>isCellSelected</code> to
     * change this default behavior. This method is equivalent to setting
     * both the <code>rowSelectionAllowed</code> property and
     * <code>columnSelectionAllowed</code> property of the
     * <code>columnModel</code> to the supplied value.
     *
     * @param  cellSelectionEnabled     true if simultaneous row and column
     *                                  selection is allowed
     * @see #getCellSelectionEnabled
     * @see #isCellSelected
     */
    @BeanProperty(visualUpdate = true, description
            = "Select a rectangular region of cells rather than rows or columns.")
    public void setCellSelectionEnabled(boolean cellSelectionEnabled) {
        setRowSelectionAllowed(cellSelectionEnabled);
        setColumnSelectionAllowed(cellSelectionEnabled);
        boolean old = this.cellSelectionEnabled;
        this.cellSelectionEnabled = cellSelectionEnabled;
        firePropertyChange("cellSelectionEnabled", old, cellSelectionEnabled);
    }

    
Returns true if both row and column selection models are enabled.
Equivalent to getRowSelectionAllowed() &&
getColumnSelectionAllowed().

See Also:
Returns:true if both row and column selection models are enabled
/**
     * Returns true if both row and column selection models are enabled.
     * Equivalent to <code>getRowSelectionAllowed() &amp;&amp;
     * getColumnSelectionAllowed()</code>.
     *
     * @return true if both row and column selection models are enabled
     *
     * @see #setCellSelectionEnabled
     */
    public boolean getCellSelectionEnabled() {
        return getRowSelectionAllowed() && getColumnSelectionAllowed();
    }

    
 Selects all rows, columns, and cells in the table.

/**
     *  Selects all rows, columns, and cells in the table.
     */
    public void selectAll() {
        // If I'm currently editing, then I should stop editing
        if (isEditing()) {
            removeEditor();
        }
        if (getRowCount() > 0 && getColumnCount() > 0) {
            int oldLead;
            int oldAnchor;
            ListSelectionModel selModel;

            selModel = selectionModel;
            selModel.setValueIsAdjusting(true);
            oldLead = getAdjustedIndex(selModel.getLeadSelectionIndex(), true);
            oldAnchor = getAdjustedIndex(selModel.getAnchorSelectionIndex(), true);

            setRowSelectionInterval(0, getRowCount()-1);

            // this is done to restore the anchor and lead
            SwingUtilities2.setLeadAnchorWithoutSelection(selModel, oldLead, oldAnchor);

            selModel.setValueIsAdjusting(false);

            selModel = columnModel.getSelectionModel();
            selModel.setValueIsAdjusting(true);
            oldLead = getAdjustedIndex(selModel.getLeadSelectionIndex(), false);
            oldAnchor = getAdjustedIndex(selModel.getAnchorSelectionIndex(), false);

            setColumnSelectionInterval(0, getColumnCount()-1);

            // this is done to restore the anchor and lead
            SwingUtilities2.setLeadAnchorWithoutSelection(selModel, oldLead, oldAnchor);

            selModel.setValueIsAdjusting(false);
        }
    }

    
Deselects all selected columns and rows.

/**
     * Deselects all selected columns and rows.
     */
    public void clearSelection() {
        selectionModel.clearSelection();
        columnModel.getSelectionModel().clearSelection();
    }

    private void clearSelectionAndLeadAnchor() {
        selectionModel.setValueIsAdjusting(true);
        columnModel.getSelectionModel().setValueIsAdjusting(true);

        clearSelection();

        selectionModel.setAnchorSelectionIndex(-1);
        selectionModel.setLeadSelectionIndex(-1);
        columnModel.getSelectionModel().setAnchorSelectionIndex(-1);
        columnModel.getSelectionModel().setLeadSelectionIndex(-1);

        selectionModel.setValueIsAdjusting(false);
        columnModel.getSelectionModel().setValueIsAdjusting(false);
    }

    private int getAdjustedIndex(int index, boolean row) {
        int compare = row ? getRowCount() : getColumnCount();
        return index < compare ? index : -1;
    }

    private int boundRow(int row) throws IllegalArgumentException {
        if (row < 0 || row >= getRowCount()) {
            throw new IllegalArgumentException("Row index out of range");
        }
        return row;
    }

    private int boundColumn(int col) {
        if (col< 0 || col >= getColumnCount()) {
            throw new IllegalArgumentException("Column index out of range");
        }
        return col;
    }

    
Selects the rows from index0 to index1,
inclusive.

Params:
  • index0 – one end of the interval
  • index1 – the other end of the interval
Throws:
  • IllegalArgumentException –      if index0 or
                                         index1 lie outside
                                         [0, getRowCount()-1]
/**
     * Selects the rows from <code>index0</code> to <code>index1</code>,
     * inclusive.
     *
     * @exception IllegalArgumentException      if <code>index0</code> or
     *                                          <code>index1</code> lie outside
     *                                          [0, <code>getRowCount()</code>-1]
     * @param   index0 one end of the interval
     * @param   index1 the other end of the interval
     */
    public void setRowSelectionInterval(int index0, int index1) {
        selectionModel.setSelectionInterval(boundRow(index0), boundRow(index1));
    }

    
Selects the columns from index0 to index1,
inclusive.

Params:
  • index0 – one end of the interval
  • index1 – the other end of the interval
Throws:
  • IllegalArgumentException –      if index0 or
                                         index1 lie outside
                                         [0, getColumnCount()-1]
/**
     * Selects the columns from <code>index0</code> to <code>index1</code>,
     * inclusive.
     *
     * @exception IllegalArgumentException      if <code>index0</code> or
     *                                          <code>index1</code> lie outside
     *                                          [0, <code>getColumnCount()</code>-1]
     * @param   index0 one end of the interval
     * @param   index1 the other end of the interval
     */
    public void setColumnSelectionInterval(int index0, int index1) {
        columnModel.getSelectionModel().setSelectionInterval(boundColumn(index0), boundColumn(index1));
    }

    
Adds the rows from index0 to index1, inclusive, to
the current selection.

Params:
  • index0 – one end of the interval
  • index1 – the other end of the interval
Throws:
  • IllegalArgumentException –      if index0 or index1
                                         lie outside [0, getRowCount()-1]
/**
     * Adds the rows from <code>index0</code> to <code>index1</code>, inclusive, to
     * the current selection.
     *
     * @exception IllegalArgumentException      if <code>index0</code> or <code>index1</code>
     *                                          lie outside [0, <code>getRowCount()</code>-1]
     * @param   index0 one end of the interval
     * @param   index1 the other end of the interval
     */
    public void addRowSelectionInterval(int index0, int index1) {
        selectionModel.addSelectionInterval(boundRow(index0), boundRow(index1));
    }

    
Adds the columns from index0 to index1,
inclusive, to the current selection.

Params:
  • index0 – one end of the interval
  • index1 – the other end of the interval
Throws:
  • IllegalArgumentException –      if index0 or
                                         index1 lie outside
                                         [0, getColumnCount()-1]
/**
     * Adds the columns from <code>index0</code> to <code>index1</code>,
     * inclusive, to the current selection.
     *
     * @exception IllegalArgumentException      if <code>index0</code> or
     *                                          <code>index1</code> lie outside
     *                                          [0, <code>getColumnCount()</code>-1]
     * @param   index0 one end of the interval
     * @param   index1 the other end of the interval
     */
    public void addColumnSelectionInterval(int index0, int index1) {
        columnModel.getSelectionModel().addSelectionInterval(boundColumn(index0), boundColumn(index1));
    }

    
Deselects the rows from index0 to index1, inclusive.

Params:
  • index0 – one end of the interval
  • index1 – the other end of the interval
Throws:
  • IllegalArgumentException –      if index0 or
                                         index1 lie outside
                                         [0, getRowCount()-1]
/**
     * Deselects the rows from <code>index0</code> to <code>index1</code>, inclusive.
     *
     * @exception IllegalArgumentException      if <code>index0</code> or
     *                                          <code>index1</code> lie outside
     *                                          [0, <code>getRowCount()</code>-1]
     * @param   index0 one end of the interval
     * @param   index1 the other end of the interval
     */
    public void removeRowSelectionInterval(int index0, int index1) {
        selectionModel.removeSelectionInterval(boundRow(index0), boundRow(index1));
    }

    
Deselects the columns from index0 to index1, inclusive.

Params:
  • index0 – one end of the interval
  • index1 – the other end of the interval
Throws:
  • IllegalArgumentException –      if index0 or
                                         index1 lie outside
                                         [0, getColumnCount()-1]
/**
     * Deselects the columns from <code>index0</code> to <code>index1</code>, inclusive.
     *
     * @exception IllegalArgumentException      if <code>index0</code> or
     *                                          <code>index1</code> lie outside
     *                                          [0, <code>getColumnCount()</code>-1]
     * @param   index0 one end of the interval
     * @param   index1 the other end of the interval
     */
    public void removeColumnSelectionInterval(int index0, int index1) {
        columnModel.getSelectionModel().removeSelectionInterval(boundColumn(index0), boundColumn(index1));
    }

    
Returns the index of the first selected row, -1 if no row is selected.

Returns:the index of the first selected row
/**
     * Returns the index of the first selected row, -1 if no row is selected.
     * @return the index of the first selected row
     */
    @BeanProperty(bound = false)
    public int getSelectedRow() {
        return selectionModel.getMinSelectionIndex();
    }

    
Returns the index of the first selected column,
-1 if no column is selected.

Returns:the index of the first selected column
/**
     * Returns the index of the first selected column,
     * -1 if no column is selected.
     * @return the index of the first selected column
     */
    @BeanProperty(bound = false)
    public int getSelectedColumn() {
        return columnModel.getSelectionModel().getMinSelectionIndex();
    }

    
Returns the indices of all selected rows.

See Also:
Returns:an array of integers containing the indices of all selected rows,
        or an empty array if no row is selected
/**
     * Returns the indices of all selected rows.
     *
     * @return an array of integers containing the indices of all selected rows,
     *         or an empty array if no row is selected
     * @see #getSelectedRow
     */
    @BeanProperty(bound = false)
    public int[] getSelectedRows() {
        return selectionModel.getSelectedIndices();
    }

    
Returns the indices of all selected columns.

See Also:
Returns:an array of integers containing the indices of all selected columns,
        or an empty array if no column is selected
/**
     * Returns the indices of all selected columns.
     *
     * @return an array of integers containing the indices of all selected columns,
     *         or an empty array if no column is selected
     * @see #getSelectedColumn
     */
    @BeanProperty(bound = false)
    public int[] getSelectedColumns() {
        return columnModel.getSelectedColumns();
    }

    
Returns the number of selected rows.

Returns:the number of selected rows, 0 if no rows are selected
/**
     * Returns the number of selected rows.
     *
     * @return the number of selected rows, 0 if no rows are selected
     */
    @BeanProperty(bound = false)
    public int getSelectedRowCount() {
        return selectionModel.getSelectedItemsCount();
    }

    
Returns the number of selected columns.

Returns:the number of selected columns, 0 if no columns are selected
/**
     * Returns the number of selected columns.
     *
     * @return the number of selected columns, 0 if no columns are selected
     */
    @BeanProperty(bound = false)
    public int getSelectedColumnCount() {
        return columnModel.getSelectedColumnCount();
    }

    
Returns true if the specified index is in the valid range of rows,
and the row at that index is selected.

Params:
  • row – a row in the row model
Returns:true if row is a valid index and the row at
             that index is selected (where 0 is the first row)
/**
     * Returns true if the specified index is in the valid range of rows,
     * and the row at that index is selected.
     *
     * @param row a row in the row model
     * @return true if <code>row</code> is a valid index and the row at
     *              that index is selected (where 0 is the first row)
     */
    public boolean isRowSelected(int row) {
        return selectionModel.isSelectedIndex(row);
    }

    
Returns true if the specified index is in the valid range of columns,
and the column at that index is selected.

Params:
  • column –   the column in the column model
Returns:true if column is a valid index and the column at
             that index is selected (where 0 is the first column)
/**
     * Returns true if the specified index is in the valid range of columns,
     * and the column at that index is selected.
     *
     * @param   column   the column in the column model
     * @return true if <code>column</code> is a valid index and the column at
     *              that index is selected (where 0 is the first column)
     */
    public boolean isColumnSelected(int column) {
        return columnModel.getSelectionModel().isSelectedIndex(column);
    }

    
Returns true if the specified indices are in the valid range of rows
and columns and the cell at the specified position is selected.

Params:
  • row –   the row being queried
  • column –  the column being queried
Returns:true if row and column are valid indices
             and the cell at index (row, column) is selected,
             where the first row and first column are at index 0
/**
     * Returns true if the specified indices are in the valid range of rows
     * and columns and the cell at the specified position is selected.
     * @param row   the row being queried
     * @param column  the column being queried
     *
     * @return true if <code>row</code> and <code>column</code> are valid indices
     *              and the cell at index <code>(row, column)</code> is selected,
     *              where the first row and first column are at index 0
     */
    public boolean isCellSelected(int row, int column) {
        if (!getRowSelectionAllowed() && !getColumnSelectionAllowed()) {
            return false;
        }
        return (!getRowSelectionAllowed() || isRowSelected(row)) &&
               (!getColumnSelectionAllowed() || isColumnSelected(column));
    }

    private void changeSelectionModel(ListSelectionModel sm, int index,
                                      boolean toggle, boolean extend, boolean selected,
                                      int anchor, boolean anchorSelected) {
        if (extend) {
            if (toggle) {
                if (anchorSelected) {
                    sm.addSelectionInterval(anchor, index);
                } else {
                    sm.removeSelectionInterval(anchor, index);
                    // this is a Windows-only behavior that we want for file lists
                    if (Boolean.TRUE == getClientProperty("Table.isFileList")) {
                        sm.addSelectionInterval(index, index);
                        sm.setAnchorSelectionIndex(anchor);
                    }
                }
            }
            else {
                sm.setSelectionInterval(anchor, index);
            }
        }
        else {
            if (toggle) {
                if (selected) {
                    sm.removeSelectionInterval(index, index);
                }
                else {
                    sm.addSelectionInterval(index, index);
                }
            }
            else {
                sm.setSelectionInterval(index, index);
            }
        }
    }

    
Updates the selection models of the table, depending on the state of the
two flags: toggle and extend. Most changes
to the selection that are the result of keyboard or mouse events received
by the UI are channeled through this method so that the behavior may be
overridden by a subclass. Some UIs may need more functionality than
this method provides, such as when manipulating the lead for discontiguous
selection, and may not call into this method for some selection changes.


This implementation uses the following conventions:

    

  •  toggle: false, extend: false.
     Clear the previous selection and ensure the new cell is selected.

  •  toggle: false, extend: true.
     Extend the previous selection from the anchor to the specified cell,
     clearing all other selections.

  •  toggle: true, extend: false.
     If the specified cell is selected, deselect it. If it is not selected, select it.

  •  toggle: true, extend: true.
     Apply the selection state of the anchor to all cells between it and the
     specified cell.



Params:
  • rowIndex –   affects the selection at row
  • columnIndex –  affects the selection at column
  • toggle –  see description above
  • extend –  if true, extend the current selection
Since:1.3
/**
     * Updates the selection models of the table, depending on the state of the
     * two flags: <code>toggle</code> and <code>extend</code>. Most changes
     * to the selection that are the result of keyboard or mouse events received
     * by the UI are channeled through this method so that the behavior may be
     * overridden by a subclass. Some UIs may need more functionality than
     * this method provides, such as when manipulating the lead for discontiguous
     * selection, and may not call into this method for some selection changes.
     * <p>
     * This implementation uses the following conventions:
     * <ul>
     * <li> <code>toggle</code>: <em>false</em>, <code>extend</code>: <em>false</em>.
     *      Clear the previous selection and ensure the new cell is selected.
     * <li> <code>toggle</code>: <em>false</em>, <code>extend</code>: <em>true</em>.
     *      Extend the previous selection from the anchor to the specified cell,
     *      clearing all other selections.
     * <li> <code>toggle</code>: <em>true</em>, <code>extend</code>: <em>false</em>.
     *      If the specified cell is selected, deselect it. If it is not selected, select it.
     * <li> <code>toggle</code>: <em>true</em>, <code>extend</code>: <em>true</em>.
     *      Apply the selection state of the anchor to all cells between it and the
     *      specified cell.
     * </ul>
     * @param  rowIndex   affects the selection at <code>row</code>
     * @param  columnIndex  affects the selection at <code>column</code>
     * @param  toggle  see description above
     * @param  extend  if true, extend the current selection
     *
     * @since 1.3
     */
    public void changeSelection(int rowIndex, int columnIndex, boolean toggle, boolean extend) {
        ListSelectionModel rsm = getSelectionModel();
        ListSelectionModel csm = getColumnModel().getSelectionModel();

        int anchorRow = getAdjustedIndex(rsm.getAnchorSelectionIndex(), true);
        int anchorCol = getAdjustedIndex(csm.getAnchorSelectionIndex(), false);

        boolean anchorSelected = true;

        if (anchorRow == -1) {
            if (getRowCount() > 0) {
                anchorRow = 0;
            }
            anchorSelected = false;
        }

        if (anchorCol == -1) {
            if (getColumnCount() > 0) {
                anchorCol = 0;
            }
            anchorSelected = false;
        }

        // Check the selection here rather than in each selection model.
        // This is significant in cell selection mode if we are supposed
        // to be toggling the selection. In this case it is better to
        // ensure that the cell's selection state will indeed be changed.
        // If this were done in the code for the selection model it
        // might leave a cell in selection state if the row was
        // selected but the column was not - as it would toggle them both.
        boolean selected = isCellSelected(rowIndex, columnIndex);
        anchorSelected = anchorSelected && isCellSelected(anchorRow, anchorCol);

        changeSelectionModel(csm, columnIndex, toggle, extend, selected,
                             anchorCol, anchorSelected);
        changeSelectionModel(rsm, rowIndex, toggle, extend, selected,
                             anchorRow, anchorSelected);

        // Scroll after changing the selection as blit scrolling is immediate,
        // so that if we cause the repaint after the scroll we end up painting
        // everything!
        if (getAutoscrolls()) {
            Rectangle cellRect = getCellRect(rowIndex, columnIndex, false);
            if (cellRect != null) {
                scrollRectToVisible(cellRect);
            }
        }
    }

    
Returns the foreground color for selected cells.

See Also:
Returns:the Color object for the foreground property
/**
     * Returns the foreground color for selected cells.
     *
     * @return the <code>Color</code> object for the foreground property
     * @see #setSelectionForeground
     * @see #setSelectionBackground
     */
    public Color getSelectionForeground() {
        return selectionForeground;
    }

    
Sets the foreground color for selected cells.  Cell renderers
can use this color to render text and graphics for selected
cells.


The default value of this property is defined by the look
and feel implementation.


This is a JavaBeans bound property.

Params:
  • selectionForeground –  the Color to use in the foreground
                            for selected list items
See Also:
/**
     * Sets the foreground color for selected cells.  Cell renderers
     * can use this color to render text and graphics for selected
     * cells.
     * <p>
     * The default value of this property is defined by the look
     * and feel implementation.
     * <p>
     * This is a <a href="http://docs.oracle.com/javase/tutorial/javabeans/writing/properties.html">JavaBeans</a> bound property.
     *
     * @param selectionForeground  the <code>Color</code> to use in the foreground
     *                             for selected list items
     * @see #getSelectionForeground
     * @see #setSelectionBackground
     * @see #setForeground
     * @see #setBackground
     * @see #setFont
     */
    @BeanProperty(description
            = "A default foreground color for selected cells.")
    public void setSelectionForeground(Color selectionForeground) {
        Color old = this.selectionForeground;
        this.selectionForeground = selectionForeground;
        firePropertyChange("selectionForeground", old, selectionForeground);
        repaint();
    }

    
Returns the background color for selected cells.

See Also:
Returns:the Color used for the background of selected list items
/**
     * Returns the background color for selected cells.
     *
     * @return the <code>Color</code> used for the background of selected list items
     * @see #setSelectionBackground
     * @see #setSelectionForeground
     */
    public Color getSelectionBackground() {
        return selectionBackground;
    }

    
Sets the background color for selected cells.  Cell renderers
can use this color to the fill selected cells.


The default value of this property is defined by the look
and feel implementation.


This is a JavaBeans bound property.

Params:
  • selectionBackground –  the Color to use for the background
                            of selected cells
See Also:
/**
     * Sets the background color for selected cells.  Cell renderers
     * can use this color to the fill selected cells.
     * <p>
     * The default value of this property is defined by the look
     * and feel implementation.
     * <p>
     * This is a <a href="http://docs.oracle.com/javase/tutorial/javabeans/writing/properties.html">JavaBeans</a> bound property.
     *
     * @param selectionBackground  the <code>Color</code> to use for the background
     *                             of selected cells
     * @see #getSelectionBackground
     * @see #setSelectionForeground
     * @see #setForeground
     * @see #setBackground
     * @see #setFont
     */
    @BeanProperty(description
            = "A default background color for selected cells.")
    public void setSelectionBackground(Color selectionBackground) {
        Color old = this.selectionBackground;
        this.selectionBackground = selectionBackground;
        firePropertyChange("selectionBackground", old, selectionBackground);
        repaint();
    }

    
Returns the TableColumn object for the column in the table
whose identifier is equal to identifier, when compared using
equals.

Params:
  • identifier –                      the identifier object
Throws:
Returns: the TableColumn object that matches the identifier
/**
     * Returns the <code>TableColumn</code> object for the column in the table
     * whose identifier is equal to <code>identifier</code>, when compared using
     * <code>equals</code>.
     *
     * @return  the <code>TableColumn</code> object that matches the identifier
     * @exception IllegalArgumentException      if <code>identifier</code> is <code>null</code> or no <code>TableColumn</code> has this identifier
     *
     * @param   identifier                      the identifier object
     */
    public TableColumn getColumn(Object identifier) {
        TableColumnModel cm = getColumnModel();
        int columnIndex = cm.getColumnIndex(identifier);
        return cm.getColumn(columnIndex);
    }

//
// Informally implement the TableModel interface.
//

    
Maps the index of the column in the view at
viewColumnIndex to the index of the column
in the table model.  Returns the index of the corresponding
column in the model.  If viewColumnIndex
is less than zero, returns viewColumnIndex.

Params:
  • viewColumnIndex –     the index of the column in the view
See Also:
Returns: the index of the corresponding column in the model
/**
     * Maps the index of the column in the view at
     * <code>viewColumnIndex</code> to the index of the column
     * in the table model.  Returns the index of the corresponding
     * column in the model.  If <code>viewColumnIndex</code>
     * is less than zero, returns <code>viewColumnIndex</code>.
     *
     * @param   viewColumnIndex     the index of the column in the view
     * @return  the index of the corresponding column in the model
     *
     * @see #convertColumnIndexToView
     */
    public int convertColumnIndexToModel(int viewColumnIndex) {
        return SwingUtilities2.convertColumnIndexToModel(
                getColumnModel(), viewColumnIndex);
    }

    
Maps the index of the column in the table model at
modelColumnIndex to the index of the column
in the view.  Returns the index of the
corresponding column in the view; returns -1 if this column is not
being displayed.  If modelColumnIndex is less than zero,
returns modelColumnIndex.

Params:
  • modelColumnIndex –     the index of the column in the model
See Also:
Returns:  the index of the corresponding column in the view
/**
     * Maps the index of the column in the table model at
     * <code>modelColumnIndex</code> to the index of the column
     * in the view.  Returns the index of the
     * corresponding column in the view; returns -1 if this column is not
     * being displayed.  If <code>modelColumnIndex</code> is less than zero,
     * returns <code>modelColumnIndex</code>.
     *
     * @param   modelColumnIndex     the index of the column in the model
     * @return   the index of the corresponding column in the view
     *
     * @see #convertColumnIndexToModel
     */
    public int convertColumnIndexToView(int modelColumnIndex) {
        return SwingUtilities2.convertColumnIndexToView(
                getColumnModel(), modelColumnIndex);
    }

    
Maps the index of the row in terms of the
TableModel to the view.  If the contents of the
model are not sorted the model and view indices are the same.

Params:
  • modelRowIndex – the index of the row in terms of the model
Throws:
See Also:
Returns:the index of the corresponding row in the view, or -1 if
        the row isn't visible
Since:1.6
/**
     * Maps the index of the row in terms of the
     * <code>TableModel</code> to the view.  If the contents of the
     * model are not sorted the model and view indices are the same.
     *
     * @param modelRowIndex the index of the row in terms of the model
     * @return the index of the corresponding row in the view, or -1 if
     *         the row isn't visible
     * @throws IndexOutOfBoundsException if sorting is enabled and passed an
     *         index outside the number of rows of the <code>TableModel</code>
     * @see javax.swing.table.TableRowSorter
     * @since 1.6
     */
    public int convertRowIndexToView(int modelRowIndex) {
        RowSorter<?> sorter = getRowSorter();
        if (sorter != null) {
            return sorter.convertRowIndexToView(modelRowIndex);
        }
        return modelRowIndex;
    }

    
Maps the index of the row in terms of the view to the
underlying TableModel.  If the contents of the
model are not sorted the model and view indices are the same.

Params:
  • viewRowIndex – the index of the row in the view
Throws:
  • IndexOutOfBoundsException – if sorting is enabled and passed an
        index outside the range of the JTable as
        determined by the method getRowCount
See Also:
Returns:the index of the corresponding row in the model
Since:1.6
/**
     * Maps the index of the row in terms of the view to the
     * underlying <code>TableModel</code>.  If the contents of the
     * model are not sorted the model and view indices are the same.
     *
     * @param viewRowIndex the index of the row in the view
     * @return the index of the corresponding row in the model
     * @throws IndexOutOfBoundsException if sorting is enabled and passed an
     *         index outside the range of the <code>JTable</code> as
     *         determined by the method <code>getRowCount</code>
     * @see javax.swing.table.TableRowSorter
     * @see #getRowCount
     * @since 1.6
     */
    public int convertRowIndexToModel(int viewRowIndex) {
        RowSorter<?> sorter = getRowSorter();
        if (sorter != null) {
            return sorter.convertRowIndexToModel(viewRowIndex);
        }
        return viewRowIndex;
    }

    
Returns the number of rows that can be shown in the
JTable, given unlimited space.  If a
RowSorter with a filter has been specified, the
number of rows returned may differ from that of the underlying
TableModel.

See Also:
Returns:the number of rows shown in the JTable
/**
     * Returns the number of rows that can be shown in the
     * <code>JTable</code>, given unlimited space.  If a
     * <code>RowSorter</code> with a filter has been specified, the
     * number of rows returned may differ from that of the underlying
     * <code>TableModel</code>.
     *
     * @return the number of rows shown in the <code>JTable</code>
     * @see #getColumnCount
     */
    @BeanProperty(bound = false)
    public int getRowCount() {
        RowSorter<?> sorter = getRowSorter();
        if (sorter != null) {
            return sorter.getViewRowCount();
        }
        return getModel().getRowCount();
    }

    
Returns the number of columns in the column model. Note that this may
be different from the number of columns in the table model.

See Also:
Returns: the number of columns in the table
/**
     * Returns the number of columns in the column model. Note that this may
     * be different from the number of columns in the table model.
     *
     * @return  the number of columns in the table
     * @see #getRowCount
     * @see #removeColumn
     */
    @BeanProperty(bound = false)
    public int getColumnCount() {
        return getColumnModel().getColumnCount();
    }

    
Returns the name of the column appearing in the view at
column position column.

Params:
  • column –    the column in the view being queried
Returns:the name of the column at position column
in the view where the first column is column 0
/**
     * Returns the name of the column appearing in the view at
     * column position <code>column</code>.
     *
     * @param  column    the column in the view being queried
     * @return the name of the column at position <code>column</code>
                        in the view where the first column is column 0
     */
    public String getColumnName(int column) {
        return getModel().getColumnName(convertColumnIndexToModel(column));
    }

    
Returns the type of the column appearing in the view at
column position column.

Params:
  • column –   the column in the view being queried
Returns:the type of the column at position column
         in the view where the first column is column 0
/**
     * Returns the type of the column appearing in the view at
     * column position <code>column</code>.
     *
     * @param   column   the column in the view being queried
     * @return the type of the column at position <code>column</code>
     *          in the view where the first column is column 0
     */
    public Class<?> getColumnClass(int column) {
        return getModel().getColumnClass(convertColumnIndexToModel(column));
    }

    
Returns the cell value at row and column.


Note: The column is specified in the table view's display
             order, and not in the TableModel's column
             order.  This is an important distinction because as the
             user rearranges the columns in the table,
             the column at a given index in the view will change.
             Meanwhile the user's actions never affect the model's
             column ordering.

Params:
  • row –             the row whose value is to be queried
  • column –          the column whose value is to be queried
Returns: the Object at the specified cell
/**
     * Returns the cell value at <code>row</code> and <code>column</code>.
     * <p>
     * <b>Note</b>: The column is specified in the table view's display
     *              order, and not in the <code>TableModel</code>'s column
     *              order.  This is an important distinction because as the
     *              user rearranges the columns in the table,
     *              the column at a given index in the view will change.
     *              Meanwhile the user's actions never affect the model's
     *              column ordering.
     *
     * @param   row             the row whose value is to be queried
     * @param   column          the column whose value is to be queried
     * @return  the Object at the specified cell
     */
    public Object getValueAt(int row, int column) {
        return getModel().getValueAt(convertRowIndexToModel(row),
                                     convertColumnIndexToModel(column));
    }

    
Sets the value for the cell in the table model at row
and column.


Note: The column is specified in the table view's display
             order, and not in the TableModel's column
             order.  This is an important distinction because as the
             user rearranges the columns in the table,
             the column at a given index in the view will change.
             Meanwhile the user's actions never affect the model's
             column ordering.
aValue is the new value.

Params:
  • aValue –          the new value
  • row –             the row of the cell to be changed
  • column –          the column of the cell to be changed
See Also:
/**
     * Sets the value for the cell in the table model at <code>row</code>
     * and <code>column</code>.
     * <p>
     * <b>Note</b>: The column is specified in the table view's display
     *              order, and not in the <code>TableModel</code>'s column
     *              order.  This is an important distinction because as the
     *              user rearranges the columns in the table,
     *              the column at a given index in the view will change.
     *              Meanwhile the user's actions never affect the model's
     *              column ordering.
     *
     * <code>aValue</code> is the new value.
     *
     * @param   aValue          the new value
     * @param   row             the row of the cell to be changed
     * @param   column          the column of the cell to be changed
     * @see #getValueAt
     */
    public void setValueAt(Object aValue, int row, int column) {
        getModel().setValueAt(aValue, convertRowIndexToModel(row),
                              convertColumnIndexToModel(column));
    }

    
Returns true if the cell at row and column
is editable.  Otherwise, invoking setValueAt on the cell
will have no effect.


Note: The column is specified in the table view's display
             order, and not in the TableModel's column
             order.  This is an important distinction because as the
             user rearranges the columns in the table,
             the column at a given index in the view will change.
             Meanwhile the user's actions never affect the model's
             column ordering.

Params:
  • row –      the row whose value is to be queried
  • column –   the column whose value is to be queried
See Also:
Returns: true if the cell is editable
/**
     * Returns true if the cell at <code>row</code> and <code>column</code>
     * is editable.  Otherwise, invoking <code>setValueAt</code> on the cell
     * will have no effect.
     * <p>
     * <b>Note</b>: The column is specified in the table view's display
     *              order, and not in the <code>TableModel</code>'s column
     *              order.  This is an important distinction because as the
     *              user rearranges the columns in the table,
     *              the column at a given index in the view will change.
     *              Meanwhile the user's actions never affect the model's
     *              column ordering.
     *
     *
     * @param   row      the row whose value is to be queried
     * @param   column   the column whose value is to be queried
     * @return  true if the cell is editable
     * @see #setValueAt
     */
    public boolean isCellEditable(int row, int column) {
        return getModel().isCellEditable(convertRowIndexToModel(row),
                                         convertColumnIndexToModel(column));
    }
//
// Adding and removing columns in the view
//

    
 Appends aColumn to the end of the array of columns held by
 this JTable's column model.
 If the column name of aColumn is null,
 sets the column name of aColumn to the name
 returned by getModel().getColumnName().
 

 To add a column to this JTable to display the
 modelColumn'th column of data in the model with a
 given width, cellRenderer,
 and cellEditor you can use:
 
     addColumn(new TableColumn(modelColumn, width, cellRenderer, cellEditor));
 

 [Any of the TableColumn constructors can be used
 instead of this one.]
 The model column number is stored inside the TableColumn
 and is used during rendering and editing to locate the appropriates
 data values in the model. The model column number does not change
 when columns are reordered in the view.
 @param  aColumn         the TableColumn to be added
 @see    #removeColumn

/**
     *  Appends <code>aColumn</code> to the end of the array of columns held by
     *  this <code>JTable</code>'s column model.
     *  If the column name of <code>aColumn</code> is <code>null</code>,
     *  sets the column name of <code>aColumn</code> to the name
     *  returned by <code>getModel().getColumnName()</code>.
     *  <p>
     *  To add a column to this <code>JTable</code> to display the
     *  <code>modelColumn</code>'th column of data in the model with a
     *  given <code>width</code>, <code>cellRenderer</code>,
     *  and <code>cellEditor</code> you can use:
     *  <pre>
     *
     *      addColumn(new TableColumn(modelColumn, width, cellRenderer, cellEditor));
     *
     *  </pre>
     *  [Any of the <code>TableColumn</code> constructors can be used
     *  instead of this one.]
     *  The model column number is stored inside the <code>TableColumn</code>
     *  and is used during rendering and editing to locate the appropriates
     *  data values in the model. The model column number does not change
     *  when columns are reordered in the view.
     *
     *  @param  aColumn         the <code>TableColumn</code> to be added
     *  @see    #removeColumn
     */
    public void addColumn(TableColumn aColumn) {
        if (aColumn.getHeaderValue() == null) {
            int modelColumn = aColumn.getModelIndex();
            String columnName = getModel().getColumnName(modelColumn);
            aColumn.setHeaderValue(columnName);
        }
        getColumnModel().addColumn(aColumn);
    }

    
 Removes aColumn from this JTable's
 array of columns.  Note: this method does not remove the column
 of data from the model; it just removes the TableColumn
 that was responsible for displaying it.
 @param  aColumn         the TableColumn to be removed
 @see    #addColumn

/**
     *  Removes <code>aColumn</code> from this <code>JTable</code>'s
     *  array of columns.  Note: this method does not remove the column
     *  of data from the model; it just removes the <code>TableColumn</code>
     *  that was responsible for displaying it.
     *
     *  @param  aColumn         the <code>TableColumn</code> to be removed
     *  @see    #addColumn
     */
    public void removeColumn(TableColumn aColumn) {
        getColumnModel().removeColumn(aColumn);
    }

    
Moves the column column to the position currently
occupied by the column targetColumn in the view.
The old column at targetColumn is
shifted left or right to make room.

Params:
  • column –                  the index of column to be moved
  • targetColumn –            the new index of the column
/**
     * Moves the column <code>column</code> to the position currently
     * occupied by the column <code>targetColumn</code> in the view.
     * The old column at <code>targetColumn</code> is
     * shifted left or right to make room.
     *
     * @param   column                  the index of column to be moved
     * @param   targetColumn            the new index of the column
     */
    public void moveColumn(int column, int targetColumn) {
        getColumnModel().moveColumn(column, targetColumn);
    }

//
// Cover methods for various models and helper methods
//

    
Returns the index of the column that point lies in,
or -1 if the result is not in the range
[0, getColumnCount()-1].

Params:
  • point –   the location of interest
See Also:
Returns: the index of the column that point lies in,
         or -1 if the result is not in the range
         [0, getColumnCount()-1]
/**
     * Returns the index of the column that <code>point</code> lies in,
     * or -1 if the result is not in the range
     * [0, <code>getColumnCount()</code>-1].
     *
     * @param   point   the location of interest
     * @return  the index of the column that <code>point</code> lies in,
     *          or -1 if the result is not in the range
     *          [0, <code>getColumnCount()</code>-1]
     * @see     #rowAtPoint
     */
    public int columnAtPoint(Point point) {
        int x = point.x;
        if( !getComponentOrientation().isLeftToRight() ) {
            x = getWidth() - x - 1;
        }
        return getColumnModel().getColumnIndexAtX(x);
    }

    
Returns the index of the row that point lies in,
or -1 if the result is not in the range
[0, getRowCount()-1].

Params:
  • point –   the location of interest
See Also:
Returns: the index of the row that point lies in,
         or -1 if the result is not in the range
         [0, getRowCount()-1]
/**
     * Returns the index of the row that <code>point</code> lies in,
     * or -1 if the result is not in the range
     * [0, <code>getRowCount()</code>-1].
     *
     * @param   point   the location of interest
     * @return  the index of the row that <code>point</code> lies in,
     *          or -1 if the result is not in the range
     *          [0, <code>getRowCount()</code>-1]
     * @see     #columnAtPoint
     */
    public int rowAtPoint(Point point) {
        int y = point.y;
        int result = (rowModel == null) ?  y/getRowHeight() : rowModel.getIndex(y);
        if (result < 0) {
            return -1;
        }
        else if (result >= getRowCount()) {
            return -1;
        }
        else {
            return result;
        }
    }

    
Returns a rectangle for the cell that lies at the intersection of
row and column.
If includeSpacing is true then the value returned
has the full height and width of the row and column
specified. If it is false, the returned rectangle is inset by the
intercell spacing to return the true bounds of the rendering or
editing component as it will be set during rendering.


If the column index is valid but the row index is less
than zero the method returns a rectangle with the
y and height values set appropriately
and the x and width values both set
to zero. In general, when either the row or column indices indicate a
cell outside the appropriate range, the method returns a rectangle
depicting the closest edge of the closest cell that is within
the table's range. When both row and column indices are out
of range the returned rectangle covers the closest
point of the closest cell.


In all cases, calculations that use this method to calculate
results along one axis will not fail because of anomalies in
calculations along the other axis. When the cell is not valid
the includeSpacing parameter is ignored.

Params:
  • row –                   the row index where the desired cell
                               is located
  • column –  the column index where the desired cell is located in the display; this is not necessarily the same as the column index in the data model for the table; the convertColumnIndexToView(int) method may be used to convert a data model column index to a display column index
  • includeSpacing –        if false, return the true cell bounds -
                               computed by subtracting the intercell
                               spacing from the height and widths of
                               the column and row models
See Also:
Returns: the rectangle containing the cell at location
         row,column
/**
     * Returns a rectangle for the cell that lies at the intersection of
     * <code>row</code> and <code>column</code>.
     * If <code>includeSpacing</code> is true then the value returned
     * has the full height and width of the row and column
     * specified. If it is false, the returned rectangle is inset by the
     * intercell spacing to return the true bounds of the rendering or
     * editing component as it will be set during rendering.
     * <p>
     * If the column index is valid but the row index is less
     * than zero the method returns a rectangle with the
     * <code>y</code> and <code>height</code> values set appropriately
     * and the <code>x</code> and <code>width</code> values both set
     * to zero. In general, when either the row or column indices indicate a
     * cell outside the appropriate range, the method returns a rectangle
     * depicting the closest edge of the closest cell that is within
     * the table's range. When both row and column indices are out
     * of range the returned rectangle covers the closest
     * point of the closest cell.
     * <p>
     * In all cases, calculations that use this method to calculate
     * results along one axis will not fail because of anomalies in
     * calculations along the other axis. When the cell is not valid
     * the <code>includeSpacing</code> parameter is ignored.
     *
     * @param   row                   the row index where the desired cell
     *                                is located
     * @param   column                the column index where the desired cell
     *                                is located in the display; this is not
     *                                necessarily the same as the column index
     *                                in the data model for the table; the
     *                                {@link #convertColumnIndexToView(int)}
     *                                method may be used to convert a data
     *                                model column index to a display
     *                                column index
     * @param   includeSpacing        if false, return the true cell bounds -
     *                                computed by subtracting the intercell
     *                                spacing from the height and widths of
     *                                the column and row models
     *
     * @return  the rectangle containing the cell at location
     *          <code>row</code>,<code>column</code>
     * @see #getIntercellSpacing
     */
    public Rectangle getCellRect(int row, int column, boolean includeSpacing) {
        Rectangle r = new Rectangle();
        boolean valid = true;
        if (row < 0) {
            // y = height = 0;
            valid = false;
        }
        else if (row >= getRowCount()) {
            r.y = getHeight();
            valid = false;
        }
        else {
            r.height = getRowHeight(row);
            r.y = (rowModel == null) ? row * r.height : rowModel.getPosition(row);
        }

        if (column < 0) {
            if( !getComponentOrientation().isLeftToRight() ) {
                r.x = getWidth();
            }
            // otherwise, x = width = 0;
            valid = false;
        }
        else if (column >= getColumnCount()) {
            if( getComponentOrientation().isLeftToRight() ) {
                r.x = getWidth();
            }
            // otherwise, x = width = 0;
            valid = false;
        }
        else {
            TableColumnModel cm = getColumnModel();
            if( getComponentOrientation().isLeftToRight() ) {
                for(int i = 0; i < column; i++) {
                    r.x += cm.getColumn(i).getWidth();
                }
            } else {
                for(int i = cm.getColumnCount()-1; i > column; i--) {
                    r.x += cm.getColumn(i).getWidth();
                }
            }
            r.width = cm.getColumn(column).getWidth();
        }

        if (valid && !includeSpacing) {
            // Bound the margins by their associated dimensions to prevent
            // returning bounds with negative dimensions.
            int rm = Math.min(getRowMargin(), r.height);
            int cm = Math.min(getColumnModel().getColumnMargin(), r.width);
            // This is not the same as grow(), it rounds differently.
            r.setBounds(r.x + cm/2, r.y + rm/2, r.width - cm, r.height - rm);
        }
        return r;
    }

    private int viewIndexForColumn(TableColumn aColumn) {
        TableColumnModel cm = getColumnModel();
        for (int column = 0; column < cm.getColumnCount(); column++) {
            if (cm.getColumn(column) == aColumn) {
                return column;
            }
        }
        return -1;
    }

    
Causes this table to lay out its rows and columns.  Overridden so
that columns can be resized to accommodate a change in the size of
a containing parent.
Resizes one or more of the columns in the table
so that the total width of all of this JTable's
columns is equal to the width of the table.


Before the layout begins the method gets the
resizingColumn of the tableHeader.
When the method is called as a result of the resizing of an enclosing window,
the resizingColumn is null. This means that resizing
has taken place "outside" the JTable and the change -
or "delta" - should be distributed to all of the columns regardless
of this JTable's automatic resize mode.


If the resizingColumn is not null, it is one of
the columns in the table that has changed size rather than
the table itself. In this case the auto-resize modes govern
the way the extra (or deficit) space is distributed
amongst the available columns.


The modes are:

    

  •   AUTO_RESIZE_OFF: Don't automatically adjust the column's
widths at all. Use a horizontal scrollbar to accommodate the
columns when their sum exceeds the width of the
Viewport.  If the JTable is not
enclosed in a JScrollPane this may
leave parts of the table invisible.

  •   AUTO_RESIZE_NEXT_COLUMN: Use just the column after the
resizing column. This results in the "boundary" or divider
between adjacent cells being independently adjustable.

  •   AUTO_RESIZE_SUBSEQUENT_COLUMNS: Use all columns after the
one being adjusted to absorb the changes.  This is the
default behavior.

  •   AUTO_RESIZE_LAST_COLUMN: Automatically adjust the
size of the last column only. If the bounds of the last column
prevent the desired size from being allocated, set the
width of the last column to the appropriate limit and make
no further adjustments.

  •   AUTO_RESIZE_ALL_COLUMNS: Spread the delta amongst all the columns
in the JTable, including the one that is being
adjusted.




Note: When a JTable makes adjustments
  to the widths of the columns it respects their minimum and
  maximum values absolutely.  It is therefore possible that,
  even after this method is called, the total width of the columns
  is still not equal to the width of the table. When this happens
  the JTable does not put itself
  in AUTO_RESIZE_OFF mode to bring up a scroll bar, or break other
  commitments of its current auto-resize mode -- instead it
  allows its bounds to be set larger (or smaller) than the total of the
  column minimum or maximum, meaning, either that there
  will not be enough room to display all of the columns, or that the
  columns will not fill the JTable's bounds.
  These respectively, result in the clipping of some columns
  or an area being painted in the JTable's
  background color during painting.


  The mechanism for distributing the delta amongst the available
  columns is provided in a private method in the JTable
  class:

  adjustSizes(long targetSize, final Resizable3 r, boolean inverse)


  an explanation of which is provided in the following section.
  Resizable3 is a private
  interface that allows any data structure containing a collection
  of elements with a size, preferred size, maximum size and minimum size
  to have its elements manipulated by the algorithm.

 Distributing the delta 


 Overview 



Call "DELTA" the difference between the target size and the
sum of the preferred sizes of the elements in r. The individual
sizes are calculated by taking the original preferred
sizes and adding a share of the DELTA - that share being based on
how far each preferred size is from its limiting bound (minimum or
maximum).

Definition



Call the individual constraints min[i], max[i], and pref[i].


Call their respective sums: MIN, MAX, and PREF.


Each new size will be calculated using:

         size[i] = pref[i] + delta[i]


where each individual delta[i] is calculated according to:


If (DELTA < 0) we are in shrink mode where:

                       DELTA
         delta[i] = ------------ * (pref[i] - min[i])
                    (PREF - MIN)


If (DELTA > 0) we are in expand mode where:

                       DELTA
         delta[i] = ------------ * (max[i] - pref[i])
                     (MAX - PREF)




The overall effect is that the total size moves that same percentage,
k, towards the total minimum or maximum and that percentage guarantees
accommodation of the required space, DELTA.

Details



Naive evaluation of the formulae presented here would be subject to
the aggregated rounding errors caused by doing this operation in finite
precision (using ints). To deal with this, the multiplying factor above,
is constantly recalculated and this takes account of the rounding
errors in the previous iterations. The result is an algorithm that
produces a set of integers whose values exactly sum to the supplied
targetSize, and does so by spreading the rounding
errors evenly over the given elements.

When the MAX and MIN bounds are hit



When targetSize is outside the [MIN, MAX] range,
the algorithm sets all sizes to their appropriate limiting value
(maximum or minimum).

/**
     * Causes this table to lay out its rows and columns.  Overridden so
     * that columns can be resized to accommodate a change in the size of
     * a containing parent.
     * Resizes one or more of the columns in the table
     * so that the total width of all of this <code>JTable</code>'s
     * columns is equal to the width of the table.
     * <p>
     * Before the layout begins the method gets the
     * <code>resizingColumn</code> of the <code>tableHeader</code>.
     * When the method is called as a result of the resizing of an enclosing window,
     * the <code>resizingColumn</code> is <code>null</code>. This means that resizing
     * has taken place "outside" the <code>JTable</code> and the change -
     * or "delta" - should be distributed to all of the columns regardless
     * of this <code>JTable</code>'s automatic resize mode.
     * <p>
     * If the <code>resizingColumn</code> is not <code>null</code>, it is one of
     * the columns in the table that has changed size rather than
     * the table itself. In this case the auto-resize modes govern
     * the way the extra (or deficit) space is distributed
     * amongst the available columns.
     * <p>
     * The modes are:
     * <ul>
     * <li>  AUTO_RESIZE_OFF: Don't automatically adjust the column's
     * widths at all. Use a horizontal scrollbar to accommodate the
     * columns when their sum exceeds the width of the
     * <code>Viewport</code>.  If the <code>JTable</code> is not
     * enclosed in a <code>JScrollPane</code> this may
     * leave parts of the table invisible.
     * <li>  AUTO_RESIZE_NEXT_COLUMN: Use just the column after the
     * resizing column. This results in the "boundary" or divider
     * between adjacent cells being independently adjustable.
     * <li>  AUTO_RESIZE_SUBSEQUENT_COLUMNS: Use all columns after the
     * one being adjusted to absorb the changes.  This is the
     * default behavior.
     * <li>  AUTO_RESIZE_LAST_COLUMN: Automatically adjust the
     * size of the last column only. If the bounds of the last column
     * prevent the desired size from being allocated, set the
     * width of the last column to the appropriate limit and make
     * no further adjustments.
     * <li>  AUTO_RESIZE_ALL_COLUMNS: Spread the delta amongst all the columns
     * in the <code>JTable</code>, including the one that is being
     * adjusted.
     * </ul>
     * <p>
     * <b>Note:</b> When a <code>JTable</code> makes adjustments
     *   to the widths of the columns it respects their minimum and
     *   maximum values absolutely.  It is therefore possible that,
     *   even after this method is called, the total width of the columns
     *   is still not equal to the width of the table. When this happens
     *   the <code>JTable</code> does not put itself
     *   in AUTO_RESIZE_OFF mode to bring up a scroll bar, or break other
     *   commitments of its current auto-resize mode -- instead it
     *   allows its bounds to be set larger (or smaller) than the total of the
     *   column minimum or maximum, meaning, either that there
     *   will not be enough room to display all of the columns, or that the
     *   columns will not fill the <code>JTable</code>'s bounds.
     *   These respectively, result in the clipping of some columns
     *   or an area being painted in the <code>JTable</code>'s
     *   background color during painting.
     * <p>
     *   The mechanism for distributing the delta amongst the available
     *   columns is provided in a private method in the <code>JTable</code>
     *   class:
     * <pre>
     *   adjustSizes(long targetSize, final Resizable3 r, boolean inverse)
     * </pre>
     *   an explanation of which is provided in the following section.
     *   <code>Resizable3</code> is a private
     *   interface that allows any data structure containing a collection
     *   of elements with a size, preferred size, maximum size and minimum size
     *   to have its elements manipulated by the algorithm.
     *
     * <H3> Distributing the delta </H3>
     *
     * <H4> Overview </H4>
     * <P>
     * Call "DELTA" the difference between the target size and the
     * sum of the preferred sizes of the elements in r. The individual
     * sizes are calculated by taking the original preferred
     * sizes and adding a share of the DELTA - that share being based on
     * how far each preferred size is from its limiting bound (minimum or
     * maximum).
     *
     * <H4>Definition</H4>
     * <P>
     * Call the individual constraints min[i], max[i], and pref[i].
     * <p>
     * Call their respective sums: MIN, MAX, and PREF.
     * <p>
     * Each new size will be calculated using:
     *
     * <pre>
     *          size[i] = pref[i] + delta[i]
     * </pre>
     * where each individual delta[i] is calculated according to:
     * <p>
     * If (DELTA &lt; 0) we are in shrink mode where:
     *
     * <PRE>
     *                        DELTA
     *          delta[i] = ------------ * (pref[i] - min[i])
     *                     (PREF - MIN)
     * </PRE>
     * If (DELTA &gt; 0) we are in expand mode where:
     *
     * <PRE>
     *                        DELTA
     *          delta[i] = ------------ * (max[i] - pref[i])
     *                      (MAX - PREF)
     * </PRE>
     * <P>
     * The overall effect is that the total size moves that same percentage,
     * k, towards the total minimum or maximum and that percentage guarantees
     * accommodation of the required space, DELTA.
     *
     * <H4>Details</H4>
     * <P>
     * Naive evaluation of the formulae presented here would be subject to
     * the aggregated rounding errors caused by doing this operation in finite
     * precision (using ints). To deal with this, the multiplying factor above,
     * is constantly recalculated and this takes account of the rounding
     * errors in the previous iterations. The result is an algorithm that
     * produces a set of integers whose values exactly sum to the supplied
     * <code>targetSize</code>, and does so by spreading the rounding
     * errors evenly over the given elements.
     *
     * <H4>When the MAX and MIN bounds are hit</H4>
     * <P>
     * When <code>targetSize</code> is outside the [MIN, MAX] range,
     * the algorithm sets all sizes to their appropriate limiting value
     * (maximum or minimum).
     *
     */
    public void doLayout() {
        TableColumn resizingColumn = getResizingColumn();
        if (resizingColumn == null) {
            setWidthsFromPreferredWidths(false);
        }
        else {
            // JTable behaves like a layout manger - but one in which the
            // user can come along and dictate how big one of the children
            // (columns) is supposed to be.

            // A column has been resized and JTable may need to distribute
            // any overall delta to other columns, according to the resize mode.
            int columnIndex = viewIndexForColumn(resizingColumn);
            int delta = getWidth() - getColumnModel().getTotalColumnWidth();
            accommodateDelta(columnIndex, delta);
            delta = getWidth() - getColumnModel().getTotalColumnWidth();

            // If the delta cannot be completely accomodated, then the
            // resizing column will have to take any remainder. This means
            // that the column is not being allowed to take the requested
            // width. This happens under many circumstances: For example,
            // AUTO_RESIZE_NEXT_COLUMN specifies that any delta be distributed
            // to the column after the resizing column. If one were to attempt
            // to resize the last column of the table, there would be no
            // columns after it, and hence nowhere to distribute the delta.
            // It would then be given entirely back to the resizing column,
            // preventing it from changing size.
            if (delta != 0) {
                resizingColumn.setWidth(resizingColumn.getWidth() + delta);
            }

            // At this point the JTable has to work out what preferred sizes
            // would have resulted in the layout the user has chosen.
            // Thereafter, during window resizing etc. it has to work off
            // the preferred sizes as usual - the idea being that, whatever
            // the user does, everything stays in synch and things don't jump
            // around.
            setWidthsFromPreferredWidths(true);
        }

        super.doLayout();
    }

    private TableColumn getResizingColumn() {
        return (tableHeader == null) ? null
                                     : tableHeader.getResizingColumn();
    }

    
Sizes the table columns to fit the available space.

Params:
  • lastColumnOnly – determines whether to resize last column only
See Also:
Deprecated:As of Swing version 1.0.3,
replaced by doLayout().
/**
     * Sizes the table columns to fit the available space.
     *
     * @param lastColumnOnly determines whether to resize last column only
     * @deprecated As of Swing version 1.0.3,
     * replaced by <code>doLayout()</code>.
     * @see #doLayout
     */
    @Deprecated
    public void sizeColumnsToFit(boolean lastColumnOnly) {
        int oldAutoResizeMode = autoResizeMode;
        setAutoResizeMode(lastColumnOnly ? AUTO_RESIZE_LAST_COLUMN
                                         : AUTO_RESIZE_ALL_COLUMNS);
        sizeColumnsToFit(-1);
        setAutoResizeMode(oldAutoResizeMode);
    }

    
Obsolete as of Java 2 platform v1.4.  Please use the
doLayout() method instead.

Params:
  • resizingColumn –    the column whose resizing made this adjustment
                         necessary or -1 if there is no such column
See Also:
/**
     * Obsolete as of Java 2 platform v1.4.  Please use the
     * <code>doLayout()</code> method instead.
     * @param resizingColumn    the column whose resizing made this adjustment
     *                          necessary or -1 if there is no such column
     * @see  #doLayout
     */
    public void sizeColumnsToFit(int resizingColumn) {
        if (resizingColumn == -1) {
            setWidthsFromPreferredWidths(false);
        }
        else {
            if (autoResizeMode == AUTO_RESIZE_OFF) {
                TableColumn aColumn = getColumnModel().getColumn(resizingColumn);
                aColumn.setPreferredWidth(aColumn.getWidth());
            }
            else {
                int delta = getWidth() - getColumnModel().getTotalColumnWidth();
                accommodateDelta(resizingColumn, delta);
                setWidthsFromPreferredWidths(true);
            }
        }
    }

    private void setWidthsFromPreferredWidths(final boolean inverse) {
        int totalWidth     = getWidth();
        int totalPreferred = getPreferredSize().width;
        int target = !inverse ? totalWidth : totalPreferred;

        final TableColumnModel cm = columnModel;
        Resizable3 r = new Resizable3() {
            public int  getElementCount()      { return cm.getColumnCount(); }
            public int  getLowerBoundAt(int i) { return cm.getColumn(i).getMinWidth(); }
            public int  getUpperBoundAt(int i) { return cm.getColumn(i).getMaxWidth(); }
            public int  getMidPointAt(int i)  {
                if (!inverse) {
                    return cm.getColumn(i).getPreferredWidth();
                }
                else {
                    return cm.getColumn(i).getWidth();
                }
            }
            public void setSizeAt(int s, int i) {
                if (!inverse) {
                    cm.getColumn(i).setWidth(s);
                }
                else {
                    cm.getColumn(i).setPreferredWidth(s);
                }
            }
        };

        adjustSizes(target, r, inverse);
    }


    // Distribute delta over columns, as indicated by the autoresize mode.
    private void accommodateDelta(int resizingColumnIndex, int delta) {
        int columnCount = getColumnCount();
        int from = resizingColumnIndex;
        int to;

        // Use the mode to determine how to absorb the changes.
        switch(autoResizeMode) {
            case AUTO_RESIZE_NEXT_COLUMN:
                from = from + 1;
                to = Math.min(from + 1, columnCount); break;
            case AUTO_RESIZE_SUBSEQUENT_COLUMNS:
                from = from + 1;
                to = columnCount; break;
            case AUTO_RESIZE_LAST_COLUMN:
                from = columnCount - 1;
                to = from + 1; break;
            case AUTO_RESIZE_ALL_COLUMNS:
                from = 0;
                to = columnCount; break;
            default:
                return;
        }

        final int start = from;
        final int end = to;
        final TableColumnModel cm = columnModel;
        Resizable3 r = new Resizable3() {
            public int  getElementCount()       { return end-start; }
            public int  getLowerBoundAt(int i)  { return cm.getColumn(i+start).getMinWidth(); }
            public int  getUpperBoundAt(int i)  { return cm.getColumn(i+start).getMaxWidth(); }
            public int  getMidPointAt(int i)    { return cm.getColumn(i+start).getWidth(); }
            public void setSizeAt(int s, int i) {        cm.getColumn(i+start).setWidth(s); }
        };

        int totalWidth = 0;
        for(int i = from; i < to; i++) {
            TableColumn aColumn = columnModel.getColumn(i);
            int input = aColumn.getWidth();
            totalWidth = totalWidth + input;
        }

        adjustSizes(totalWidth + delta, r, false);
    }

    private interface Resizable2 {
        public int  getElementCount();
        public int  getLowerBoundAt(int i);
        public int  getUpperBoundAt(int i);
        public void setSizeAt(int newSize, int i);
    }

    private interface Resizable3 extends Resizable2 {
        public int  getMidPointAt(int i);
    }


    private void adjustSizes(long target, final Resizable3 r, boolean inverse) {
        int N = r.getElementCount();
        long totalPreferred = 0;
        for(int i = 0; i < N; i++) {
            totalPreferred += r.getMidPointAt(i);
        }
        Resizable2 s;
        if ((target < totalPreferred) == !inverse) {
            s = new Resizable2() {
                public int  getElementCount()      { return r.getElementCount(); }
                public int  getLowerBoundAt(int i) { return r.getLowerBoundAt(i); }
                public int  getUpperBoundAt(int i) { return r.getMidPointAt(i); }
                public void setSizeAt(int newSize, int i) { r.setSizeAt(newSize, i); }

            };
        }
        else {
            s = new Resizable2() {
                public int  getElementCount()      { return r.getElementCount(); }
                public int  getLowerBoundAt(int i) { return r.getMidPointAt(i); }
                public int  getUpperBoundAt(int i) { return r.getUpperBoundAt(i); }
                public void setSizeAt(int newSize, int i) { r.setSizeAt(newSize, i); }

            };
        }
        adjustSizes(target, s, !inverse);
    }

    private void adjustSizes(long target, Resizable2 r, boolean limitToRange) {
        long totalLowerBound = 0;
        long totalUpperBound = 0;
        for(int i = 0; i < r.getElementCount(); i++) {
            totalLowerBound += r.getLowerBoundAt(i);
            totalUpperBound += r.getUpperBoundAt(i);
        }

        if (limitToRange) {
            target = Math.min(Math.max(totalLowerBound, target), totalUpperBound);
        }

        for(int i = 0; i < r.getElementCount(); i++) {
            int lowerBound = r.getLowerBoundAt(i);
            int upperBound = r.getUpperBoundAt(i);
            // Check for zero. This happens when the distribution of the delta
            // finishes early due to a series of "fixed" entries at the end.
            // In this case, lowerBound == upperBound, for all subsequent terms.
            int newSize;
            if (totalLowerBound == totalUpperBound) {
                newSize = lowerBound;
            }
            else {
                double f = (double)(target - totalLowerBound)/(totalUpperBound - totalLowerBound);
                newSize = (int)Math.round(lowerBound+f*(upperBound - lowerBound));
                // We'd need to round manually in an all integer version.
                // size[i] = (int)(((totalUpperBound - target) * lowerBound +
                //     (target - totalLowerBound) * upperBound)/(totalUpperBound-totalLowerBound));
            }
            r.setSizeAt(newSize, i);
            target -= newSize;
            totalLowerBound -= lowerBound;
            totalUpperBound -= upperBound;
        }
    }

    
Overrides JComponent's getToolTipText
method in order to allow the renderer's tips to be used
if it has text set.


Note: For JTable to properly display
tooltips of its renderers
JTable must be a registered component with the
ToolTipManager.
This is done automatically in initializeLocalVars,
but if at a later point JTable is told
setToolTipText(null) it will unregister the table
component, and no tips from renderers will display anymore.

See Also:
  • getToolTipText.getToolTipText
/**
     * Overrides <code>JComponent</code>'s <code>getToolTipText</code>
     * method in order to allow the renderer's tips to be used
     * if it has text set.
     * <p>
     * <b>Note:</b> For <code>JTable</code> to properly display
     * tooltips of its renderers
     * <code>JTable</code> must be a registered component with the
     * <code>ToolTipManager</code>.
     * This is done automatically in <code>initializeLocalVars</code>,
     * but if at a later point <code>JTable</code> is told
     * <code>setToolTipText(null)</code> it will unregister the table
     * component, and no tips from renderers will display anymore.
     *
     * @see JComponent#getToolTipText
     */
    public String getToolTipText(MouseEvent event) {
        String tip = null;
        Point p = event.getPoint();

        // Locate the renderer under the event location
        int hitColumnIndex = columnAtPoint(p);
        int hitRowIndex = rowAtPoint(p);

        if ((hitColumnIndex != -1) && (hitRowIndex != -1)) {
            TableCellRenderer renderer = getCellRenderer(hitRowIndex, hitColumnIndex);
            Component component = prepareRenderer(renderer, hitRowIndex, hitColumnIndex);

            // Now have to see if the component is a JComponent before
            // getting the tip
            if (component instanceof JComponent) {
                // Convert the event to the renderer's coordinate system
                Rectangle cellRect = getCellRect(hitRowIndex, hitColumnIndex, false);
                p.translate(-cellRect.x, -cellRect.y);
                @SuppressWarnings("deprecation")
                final int modifiers = event.getModifiers();
                MouseEvent newEvent = new MouseEvent(component, event.getID(),
                                          event.getWhen(), modifiers,
                                          p.x, p.y,
                                          event.getXOnScreen(),
                                          event.getYOnScreen(),
                                          event.getClickCount(),
                                          event.isPopupTrigger(),
                                          MouseEvent.NOBUTTON);
                MouseEventAccessor meAccessor = AWTAccessor.getMouseEventAccessor();
                meAccessor.setCausedByTouchEvent(newEvent,
                    meAccessor.isCausedByTouchEvent(event));

                tip = ((JComponent)component).getToolTipText(newEvent);
            }
        }

        // No tip from the renderer get our own tip
        if (tip == null)
            tip = getToolTipText();

        return tip;
    }

//
// Editing Support
//

    
Sets whether editors in this JTable get the keyboard focus
when an editor is activated as a result of the JTable
forwarding keyboard events for a cell.
By default, this property is false, and the JTable
retains the focus unless the cell is clicked.

Params:
  • surrendersFocusOnKeystroke – true if the editor should get the focus
         when keystrokes cause the editor to be
         activated
See Also:
Since:1.4
/**
     * Sets whether editors in this JTable get the keyboard focus
     * when an editor is activated as a result of the JTable
     * forwarding keyboard events for a cell.
     * By default, this property is false, and the JTable
     * retains the focus unless the cell is clicked.
     *
     * @param surrendersFocusOnKeystroke true if the editor should get the focus
     *          when keystrokes cause the editor to be
     *          activated
     *
     *
     * @see #getSurrendersFocusOnKeystroke
     * @since 1.4
     */
    public void setSurrendersFocusOnKeystroke(boolean surrendersFocusOnKeystroke) {
        this.surrendersFocusOnKeystroke = surrendersFocusOnKeystroke;
    }

    
Returns true if the editor should get the focus
when keystrokes cause the editor to be activated

See Also:
Returns: true if the editor should get the focus
         when keystrokes cause the editor to be
         activated
Since:1.4
/**
     * Returns true if the editor should get the focus
     * when keystrokes cause the editor to be activated
     *
     * @return  true if the editor should get the focus
     *          when keystrokes cause the editor to be
     *          activated
     *
     * @see #setSurrendersFocusOnKeystroke
     * @since 1.4
     */
    public boolean getSurrendersFocusOnKeystroke() {
        return surrendersFocusOnKeystroke;
    }

    
Programmatically starts editing the cell at row and
column, if those indices are in the valid range, and
the cell at those indices is editable.
Note that this is a convenience method for
editCellAt(int, int, null).

Params:
  • row –                             the row to be edited
  • column –                          the column to be edited
Returns: false if for any reason the cell cannot be edited,
               or if the indices are invalid
/**
     * Programmatically starts editing the cell at <code>row</code> and
     * <code>column</code>, if those indices are in the valid range, and
     * the cell at those indices is editable.
     * Note that this is a convenience method for
     * <code>editCellAt(int, int, null)</code>.
     *
     * @param   row                             the row to be edited
     * @param   column                          the column to be edited
     * @return  false if for any reason the cell cannot be edited,
     *                or if the indices are invalid
     */
    public boolean editCellAt(int row, int column) {
        return editCellAt(row, column, null);
    }

    
Programmatically starts editing the cell at row and
column, if those indices are in the valid range, and
the cell at those indices is editable.
To prevent the JTable from
editing a particular table, column or cell value, return false from
the isCellEditable method in the TableModel
interface.

Params:
  • row –     the row to be edited
  • column –  the column to be edited
  • e –       event to pass into shouldSelectCell;
                 note that as of Java 2 platform v1.2, the call to
                 shouldSelectCell is no longer made
Returns: false if for any reason the cell cannot be edited,
               or if the indices are invalid
/**
     * Programmatically starts editing the cell at <code>row</code> and
     * <code>column</code>, if those indices are in the valid range, and
     * the cell at those indices is editable.
     * To prevent the <code>JTable</code> from
     * editing a particular table, column or cell value, return false from
     * the <code>isCellEditable</code> method in the <code>TableModel</code>
     * interface.
     *
     * @param   row     the row to be edited
     * @param   column  the column to be edited
     * @param   e       event to pass into <code>shouldSelectCell</code>;
     *                  note that as of Java 2 platform v1.2, the call to
     *                  <code>shouldSelectCell</code> is no longer made
     * @return  false if for any reason the cell cannot be edited,
     *                or if the indices are invalid
     */
    public boolean editCellAt(int row, int column, EventObject e){
        if (cellEditor != null && !cellEditor.stopCellEditing()) {
            return false;
        }

        if (row < 0 || row >= getRowCount() ||
            column < 0 || column >= getColumnCount()) {
            return false;
        }

        if (!isCellEditable(row, column))
            return false;

        if (editorRemover == null) {
            KeyboardFocusManager fm =
                KeyboardFocusManager.getCurrentKeyboardFocusManager();
            editorRemover = new CellEditorRemover(fm);
            fm.addPropertyChangeListener("permanentFocusOwner", editorRemover);
        }

        TableCellEditor editor = getCellEditor(row, column);
        if (editor != null && editor.isCellEditable(e)) {
            editorComp = prepareEditor(editor, row, column);
            if (editorComp == null) {
                removeEditor();
                return false;
            }
            editorComp.setBounds(getCellRect(row, column, false));
            add(editorComp);
            editorComp.validate();
            editorComp.repaint();

            setCellEditor(editor);
            setEditingRow(row);
            setEditingColumn(column);
            editor.addCellEditorListener(this);

            return true;
        }
        return false;
    }

    
Returns true if a cell is being edited.

See Also:
Returns: true if the table is editing a cell
/**
     * Returns true if a cell is being edited.
     *
     * @return  true if the table is editing a cell
     * @see     #editingColumn
     * @see     #editingRow
     */
    @BeanProperty(bound = false)
    public boolean isEditing() {
        return cellEditor != null;
    }

    
Returns the component that is handling the editing session.
If nothing is being edited, returns null.

Returns: Component handling editing session
/**
     * Returns the component that is handling the editing session.
     * If nothing is being edited, returns null.
     *
     * @return  Component handling editing session
     */
    @BeanProperty(bound = false)
    public Component getEditorComponent() {
        return editorComp;
    }

    
Returns the index of the column that contains the cell currently
being edited.  If nothing is being edited, returns -1.

See Also:
Returns: the index of the column that contains the cell currently
         being edited; returns -1 if nothing being edited
/**
     * Returns the index of the column that contains the cell currently
     * being edited.  If nothing is being edited, returns -1.
     *
     * @return  the index of the column that contains the cell currently
     *          being edited; returns -1 if nothing being edited
     * @see #editingRow
     */
    public int getEditingColumn() {
        return editingColumn;
    }

    
Returns the index of the row that contains the cell currently
being edited.  If nothing is being edited, returns -1.

See Also:
Returns: the index of the row that contains the cell currently
         being edited; returns -1 if nothing being edited
/**
     * Returns the index of the row that contains the cell currently
     * being edited.  If nothing is being edited, returns -1.
     *
     * @return  the index of the row that contains the cell currently
     *          being edited; returns -1 if nothing being edited
     * @see #editingColumn
     */
    public int getEditingRow() {
        return editingRow;
    }

//
// Managing TableUI
//

    
Returns the L&F object that renders this component.

Returns:the TableUI object that renders this component
/**
     * Returns the L&amp;F object that renders this component.
     *
     * @return the <code>TableUI</code> object that renders this component
     */
    public TableUI getUI() {
        return (TableUI)ui;
    }

    
Sets the L&F object that renders this component and repaints.

Params:
  • ui –  the TableUI L&F object
See Also:
/**
     * Sets the L&amp;F object that renders this component and repaints.
     *
     * @param ui  the TableUI L&amp;F object
     * @see UIDefaults#getUI
     */
    @BeanProperty(hidden = true, visualUpdate = true, description
            = "The UI object that implements the Component's LookAndFeel.")
    public void setUI(TableUI ui) {
        if (this.ui != ui) {
            super.setUI(ui);
            repaint();
        }
    }

    
Notification from the UIManager that the L&F has changed.
Replaces the current UI object with the latest version from the
UIManager.

See Also:
  • updateUI.updateUI
/**
     * Notification from the <code>UIManager</code> that the L&amp;F has changed.
     * Replaces the current UI object with the latest version from the
     * <code>UIManager</code>.
     *
     * @see JComponent#updateUI
     */
    public void updateUI() {
        if (updateInProgress) {
            return;
        }

        updateInProgress = true;

        try {
            // Update the UIs of the cell renderers, cell editors and header renderers.
            TableColumnModel cm = getColumnModel();
            for(int column = 0; column < cm.getColumnCount(); column++) {
                TableColumn aColumn = cm.getColumn(column);
                SwingUtilities.updateRendererOrEditorUI(aColumn.getCellRenderer());
                SwingUtilities.updateRendererOrEditorUI(aColumn.getCellEditor());
                SwingUtilities.updateRendererOrEditorUI(aColumn.getHeaderRenderer());
            }

            // Update the UIs of all the default renderers.
            Enumeration<?> defaultRenderers = defaultRenderersByColumnClass.elements();
            while (defaultRenderers.hasMoreElements()) {
                SwingUtilities.updateRendererOrEditorUI(defaultRenderers.nextElement());
            }

            // Update the UIs of all the default editors.
            Enumeration<?> defaultEditors = defaultEditorsByColumnClass.elements();
            while (defaultEditors.hasMoreElements()) {
                SwingUtilities.updateRendererOrEditorUI(defaultEditors.nextElement());
            }

            // Update the UI of the table header
            if (tableHeader != null && tableHeader.getParent() == null) {
                tableHeader.updateUI();
            }

            // Update UI applied to parent ScrollPane
            configureEnclosingScrollPaneUI();

            setUI((TableUI)UIManager.getUI(this));
        } finally {
            updateInProgress = false;
        }
    }

    
Returns the suffix used to construct the name of the L&F class used to
render this component.

See Also:
Returns:the string "TableUI"
/**
     * Returns the suffix used to construct the name of the L&amp;F class used to
     * render this component.
     *
     * @return the string "TableUI"
     * @see JComponent#getUIClassID
     * @see UIDefaults#getUI
     */
    @BeanProperty(bound = false)
    public String getUIClassID() {
        return uiClassID;
    }


//
// Managing models
//

    
Sets the data model for this table to dataModel and registers with it for listener notifications from the new data model. 
Params:
  • dataModel – the new data source for this table
Throws:
See Also:
/**
     * Sets the data model for this table to {@code dataModel} and registers
     * with it for listener notifications from the new data model.
     *
     * @param  dataModel the new data source for this table
     * @throws IllegalArgumentException if {@code dataModel} is {@code null}
     * @see #getModel
     */
    @BeanProperty(description
            = "The model that is the source of the data for this view.")
    public void setModel(final TableModel dataModel) {
        if (dataModel == null) {
            throw new IllegalArgumentException("Cannot set a null TableModel");
        }
        if (this.dataModel != dataModel) {
            TableModel old = this.dataModel;
            if (old != null) {
                old.removeTableModelListener(this);
            }
            this.dataModel = dataModel;
            dataModel.addTableModelListener(this);

            tableChanged(new TableModelEvent(dataModel, TableModelEvent.HEADER_ROW));

            firePropertyChange("model", old, dataModel);

            if (getAutoCreateRowSorter()) {
                setRowSorter(new TableRowSorter<TableModel>(dataModel));
            }
        }
    }

    
Returns the TableModel that provides the data displayed by this JTable. 
See Also:
Returns:the TableModel that provides the data displayed by this JTable
/**
     * Returns the {@code TableModel} that provides the data displayed by this
     * {@code JTable}.
     *
     * @return the {@code TableModel} that provides the data displayed by this
     *         {@code JTable}
     * @see #setModel
     */
    public TableModel getModel() {
        return dataModel;
    }

    
Sets the column model for this table to columnModel and registers for listener notifications from the new column model. Also sets the column model of the JTableHeader to columnModel. 
Params:
  • columnModel – the new data source for this table
Throws:
See Also:
/**
     * Sets the column model for this table to {@code columnModel} and registers
     * for listener notifications from the new column model. Also sets the
     * column model of the {@code JTableHeader} to {@code columnModel}.
     *
     * @param  columnModel the new data source for this table
     * @throws IllegalArgumentException if {@code columnModel} is {@code null}
     * @see #getColumnModel
     */
    @BeanProperty(description
            = "The object governing the way columns appear in the view.")
    public void setColumnModel(final TableColumnModel columnModel) {
        if (columnModel == null) {
            throw new IllegalArgumentException("Cannot set a null ColumnModel");
        }
        TableColumnModel old = this.columnModel;
        if (columnModel != old) {
            if (old != null) {
                old.removeColumnModelListener(this);
            }
            this.columnModel = columnModel;
            columnModel.addColumnModelListener(this);

            // Set the column model of the header as well.
            if (tableHeader != null) {
                tableHeader.setColumnModel(columnModel);
            }

            firePropertyChange("columnModel", old, columnModel);
            resizeAndRepaint();
        }
    }

    
Returns the TableColumnModel that contains all column information of this table. 
See Also:
Returns:the object that provides the column state of the table
/**
     * Returns the {@code TableColumnModel} that contains all column information
     * of this table.
     *
     * @return the object that provides the column state of the table
     * @see #setColumnModel
     */
    public TableColumnModel getColumnModel() {
        return columnModel;
    }

    
Sets the row selection model for this table to selectionModel and registers for listener notifications from the new selection model. 
Params:
  • selectionModel – the new selection model
Throws:
See Also:
/**
     * Sets the row selection model for this table to {@code selectionModel}
     * and registers for listener notifications from the new selection model.
     *
     * @param  selectionModel the new selection model
     * @throws IllegalArgumentException if {@code selectionModel} is
     *         {@code null}
     * @see #getSelectionModel
     */
    @BeanProperty(description
            = "The selection model for rows.")
    public void setSelectionModel(final ListSelectionModel selectionModel) {
        if (selectionModel == null) {
            throw new IllegalArgumentException("Cannot set a null SelectionModel");
        }

        ListSelectionModel oldModel = this.selectionModel;

        if (selectionModel != oldModel) {
            if (oldModel != null) {
                oldModel.removeListSelectionListener(this);
            }

            this.selectionModel = selectionModel;
            selectionModel.addListSelectionListener(this);

            firePropertyChange("selectionModel", oldModel, selectionModel);
            repaint();
        }
    }

    
Returns the ListSelectionModel that is used to maintain row selection state. 
See Also:
Returns:the object that provides row selection state, null if row selection is not allowed
/**
     * Returns the {@code ListSelectionModel} that is used to maintain row
     * selection state.
     *
     * @return the object that provides row selection state, {@code null} if row
     *         selection is not allowed
     * @see #setSelectionModel
     */
    public ListSelectionModel getSelectionModel() {
        return selectionModel;
    }

//
// RowSorterListener
//

    
RowSorterListener notification that the
RowSorter has changed in some way.

Params:
  • e – the RowSorterEvent describing the change
Throws:
Since:1.6
/**
     * <code>RowSorterListener</code> notification that the
     * <code>RowSorter</code> has changed in some way.
     *
     * @param e the <code>RowSorterEvent</code> describing the change
     * @throws NullPointerException if <code>e</code> is <code>null</code>
     * @since 1.6
     */
    public void sorterChanged(RowSorterEvent e) {
        if (e.getType() == RowSorterEvent.Type.SORT_ORDER_CHANGED) {
            JTableHeader header = getTableHeader();
            if (header != null) {
                header.repaint();
            }
        }
        else if (e.getType() == RowSorterEvent.Type.SORTED) {
            sorterChanged = true;
            if (!ignoreSortChange) {
                sortedTableChanged(e, null);
            }
        }
    }


    
SortManager provides support for managing the selection and variable
row heights when sorting is enabled. This information is encapsulated
into a class to avoid bulking up JTable.

/**
     * SortManager provides support for managing the selection and variable
     * row heights when sorting is enabled. This information is encapsulated
     * into a class to avoid bulking up JTable.
     */
    private final class SortManager {
        RowSorter<? extends TableModel> sorter;

        // Selection, in terms of the model. This is lazily created
        // as needed.
        private ListSelectionModel modelSelection;
        private int modelLeadIndex;
        // Set to true while in the process of changing the selection.
        // If this is true the selection change is ignored.
        private boolean syncingSelection;
        // Temporary cache of selection, in terms of model. This is only used
        // if we don't need the full weight of modelSelection.
        private int[] lastModelSelection;

        // Heights of the rows in terms of the model.
        private SizeSequence modelRowSizes;


        SortManager(RowSorter<? extends TableModel> sorter) {
            this.sorter = sorter;
            sorter.addRowSorterListener(JTable.this);
        }

        
Disposes any resources used by this SortManager.

/**
         * Disposes any resources used by this SortManager.
         */
        public void dispose() {
            if (sorter != null) {
                sorter.removeRowSorterListener(JTable.this);
            }
        }

        
Sets the height for a row at a specified index.

/**
         * Sets the height for a row at a specified index.
         */
        public void setViewRowHeight(int viewIndex, int rowHeight) {
            if (modelRowSizes == null) {
                modelRowSizes = new SizeSequence(getModel().getRowCount(),
                                                 getRowHeight());
            }
            modelRowSizes.setSize(convertRowIndexToModel(viewIndex),rowHeight);
        }

        
Invoked when the underlying model has completely changed.

/**
         * Invoked when the underlying model has completely changed.
         */
        public void allChanged() {
            modelLeadIndex = -1;
            modelSelection = null;
            modelRowSizes = null;
        }

        
Invoked when the selection, on the view, has changed.

/**
         * Invoked when the selection, on the view, has changed.
         */
        public void viewSelectionChanged(ListSelectionEvent e) {
            if (!syncingSelection && modelSelection != null) {
                modelSelection = null;
            }
        }

        
Invoked when either the table model has changed, or the RowSorter
has changed. This is invoked prior to notifying the sorter of the
change.

/**
         * Invoked when either the table model has changed, or the RowSorter
         * has changed. This is invoked prior to notifying the sorter of the
         * change.
         */
        public void prepareForChange(RowSorterEvent sortEvent,
                                     ModelChange change) {
            if (getUpdateSelectionOnSort()) {
                cacheSelection(sortEvent, change);
            }
        }

        
Updates the internal cache of the selection based on the change.

/**
         * Updates the internal cache of the selection based on the change.
         */
        private void cacheSelection(RowSorterEvent sortEvent,
                                    ModelChange change) {
            if (sortEvent != null) {
                // sort order changed. If modelSelection is null and filtering
                // is enabled we need to cache the selection in terms of the
                // underlying model, this will allow us to correctly restore
                // the selection even if rows are filtered out.
                if (modelSelection == null &&
                        sorter.getViewRowCount() != getModel().getRowCount()) {
                    modelSelection = new DefaultListSelectionModel();
                    ListSelectionModel viewSelection = getSelectionModel();
                    int min = viewSelection.getMinSelectionIndex();
                    int max = viewSelection.getMaxSelectionIndex();
                    int modelIndex;
                    for (int viewIndex = min; viewIndex <= max; viewIndex++) {
                        if (viewSelection.isSelectedIndex(viewIndex)) {
                            modelIndex = convertRowIndexToModel(
                                    sortEvent, viewIndex);
                            if (modelIndex != -1) {
                                modelSelection.addSelectionInterval(
                                    modelIndex, modelIndex);
                            }
                        }
                    }
                    modelIndex = convertRowIndexToModel(sortEvent,
                            viewSelection.getLeadSelectionIndex());
                    SwingUtilities2.setLeadAnchorWithoutSelection(
                            modelSelection, modelIndex, modelIndex);
                } else if (modelSelection == null) {
                    // Sorting changed, haven't cached selection in terms
                    // of model and no filtering. Temporarily cache selection.
                    cacheModelSelection(sortEvent);
                }
            } else if (change.allRowsChanged) {
                // All the rows have changed, chuck any cached selection.
                modelSelection = null;
            } else if (modelSelection != null) {
                // Table changed, reflect changes in cached selection model.
                switch(change.type) {
                case TableModelEvent.DELETE:
                    modelSelection.removeIndexInterval(change.startModelIndex,
                                                       change.endModelIndex);
                    break;
                case TableModelEvent.INSERT:
                    modelSelection.insertIndexInterval(change.startModelIndex,
                                                       change.length,
                                                       true);
                    break;
                default:
                    break;
                }
            } else {
                // table changed, but haven't cached rows, temporarily
                // cache them.
                cacheModelSelection(null);
            }
        }

        private void cacheModelSelection(RowSorterEvent sortEvent) {
            lastModelSelection = convertSelectionToModel(sortEvent);
            modelLeadIndex = convertRowIndexToModel(sortEvent,
                        selectionModel.getLeadSelectionIndex());
        }

        
Inovked when either the table has changed or the sorter has changed
and after the sorter has been notified. If necessary this will
reapply the selection and variable row heights.

/**
         * Inovked when either the table has changed or the sorter has changed
         * and after the sorter has been notified. If necessary this will
         * reapply the selection and variable row heights.
         */
        public void processChange(RowSorterEvent sortEvent,
                                  ModelChange change,
                                  boolean sorterChanged) {
            if (change != null) {
                if (change.allRowsChanged) {
                    modelRowSizes = null;
                    rowModel = null;
                } else if (modelRowSizes != null) {
                    if (change.type == TableModelEvent.INSERT) {
                        modelRowSizes.insertEntries(change.startModelIndex,
                                                    change.endModelIndex -
                                                    change.startModelIndex + 1,
                                                    getRowHeight());
                    } else if (change.type == TableModelEvent.DELETE) {
                        modelRowSizes.removeEntries(change.startModelIndex,
                                                    change.endModelIndex -
                                                    change.startModelIndex +1 );
                    }
                }
            }
            if (sorterChanged) {
                setViewRowHeightsFromModel();
                restoreSelection(change);
            }
        }

        
Resets the variable row heights in terms of the view from
that of the variable row heights in terms of the model.

/**
         * Resets the variable row heights in terms of the view from
         * that of the variable row heights in terms of the model.
         */
        private void setViewRowHeightsFromModel() {
            if (modelRowSizes != null) {
                rowModel.setSizes(getRowCount(), getRowHeight());
                for (int viewIndex = getRowCount() - 1; viewIndex >= 0;
                         viewIndex--) {
                    int modelIndex = convertRowIndexToModel(viewIndex);
                    rowModel.setSize(viewIndex,
                                     modelRowSizes.getSize(modelIndex));
                }
            }
        }

        
Restores the selection from that in terms of the model.

/**
         * Restores the selection from that in terms of the model.
         */
        private void restoreSelection(ModelChange change) {
            syncingSelection = true;
            if (lastModelSelection != null) {
                restoreSortingSelection(lastModelSelection,
                                        modelLeadIndex, change);
                lastModelSelection = null;
            } else if (modelSelection != null) {
                ListSelectionModel viewSelection = getSelectionModel();
                viewSelection.setValueIsAdjusting(true);
                viewSelection.clearSelection();
                int min = modelSelection.getMinSelectionIndex();
                int max = modelSelection.getMaxSelectionIndex();
                int viewIndex;
                for (int modelIndex = min; modelIndex <= max; modelIndex++) {
                    if (modelSelection.isSelectedIndex(modelIndex)) {
                        viewIndex = convertRowIndexToView(modelIndex);
                        if (viewIndex != -1) {
                            viewSelection.addSelectionInterval(viewIndex,
                                                               viewIndex);
                        }
                    }
                }
                // Restore the lead
                int viewLeadIndex = modelSelection.getLeadSelectionIndex();
                if (viewLeadIndex != -1 && !modelSelection.isSelectionEmpty()) {
                    viewLeadIndex = convertRowIndexToView(viewLeadIndex);
                }
                SwingUtilities2.setLeadAnchorWithoutSelection(
                        viewSelection, viewLeadIndex, viewLeadIndex);
                viewSelection.setValueIsAdjusting(false);
            }
            syncingSelection = false;
        }
    }


    
ModelChange is used when sorting to restore state, it corresponds
to data from a TableModelEvent.  The values are precalculated as
they are used extensively.

/**
     * ModelChange is used when sorting to restore state, it corresponds
     * to data from a TableModelEvent.  The values are precalculated as
     * they are used extensively.
     */
    private final class ModelChange {
        // Starting index of the change, in terms of the model
        int startModelIndex;

        // Ending index of the change, in terms of the model
        int endModelIndex;

        // Type of change
        int type;

        // Number of rows in the model
        int modelRowCount;

        // The event that triggered this.
        TableModelEvent event;

        // Length of the change (end - start + 1)
        int length;

        // True if the event indicates all the contents have changed
        boolean allRowsChanged;

        ModelChange(TableModelEvent e) {
            startModelIndex = Math.max(0, e.getFirstRow());
            endModelIndex = e.getLastRow();
            modelRowCount = getModel().getRowCount();
            if (endModelIndex < 0) {
                endModelIndex = Math.max(0, modelRowCount - 1);
            }
            length = endModelIndex - startModelIndex + 1;
            type = e.getType();
            event = e;
            allRowsChanged = (e.getLastRow() == Integer.MAX_VALUE);
        }
    }

    
Invoked when sorterChanged is invoked, or
when tableChanged is invoked and sorting is enabled.

/**
     * Invoked when <code>sorterChanged</code> is invoked, or
     * when <code>tableChanged</code> is invoked and sorting is enabled.
     */
    private void sortedTableChanged(RowSorterEvent sortedEvent,
                                    TableModelEvent e) {
        int editingModelIndex = -1;
        ModelChange change = (e != null) ? new ModelChange(e) : null;

        if ((change == null || !change.allRowsChanged) &&
                this.editingRow != -1) {
            editingModelIndex = convertRowIndexToModel(sortedEvent,
                                                       this.editingRow);
        }

        sortManager.prepareForChange(sortedEvent, change);

        if (e != null) {
            if (change.type == TableModelEvent.UPDATE) {
                repaintSortedRows(change);
            }
            notifySorter(change);
            if (change.type != TableModelEvent.UPDATE) {
                // If the Sorter is unsorted we will not have received
                // notification, force treating insert/delete as a change.
                sorterChanged = true;
            }
        }
        else {
            sorterChanged = true;
        }

        sortManager.processChange(sortedEvent, change, sorterChanged);

        if (sorterChanged) {
            // Update the editing row
            if (this.editingRow != -1) {
                int newIndex = (editingModelIndex == -1) ? -1 :
                        convertRowIndexToView(editingModelIndex,change);
                restoreSortingEditingRow(newIndex);
            }

            // And handle the appropriate repainting.
            if (e == null || change.type != TableModelEvent.UPDATE) {
                resizeAndRepaint();
            }
        }

        // Check if lead/anchor need to be reset.
        if (change != null && change.allRowsChanged) {
            clearSelectionAndLeadAnchor();
            resizeAndRepaint();
        }
    }

    
Repaints the sort of sorted rows in response to a TableModelEvent.

/**
     * Repaints the sort of sorted rows in response to a TableModelEvent.
     */
    private void repaintSortedRows(ModelChange change) {
        if (change.startModelIndex > change.endModelIndex ||
                change.startModelIndex + 10 < change.endModelIndex) {
            // Too much has changed, punt
            repaint();
            return;
        }
        int eventColumn = change.event.getColumn();
        int columnViewIndex = eventColumn;
        if (columnViewIndex == TableModelEvent.ALL_COLUMNS) {
            columnViewIndex = 0;
        }
        else {
            columnViewIndex = convertColumnIndexToView(columnViewIndex);
            if (columnViewIndex == -1) {
                return;
            }
        }
        int modelIndex = change.startModelIndex;
        while (modelIndex <= change.endModelIndex) {
            int viewIndex = convertRowIndexToView(modelIndex++);
            if (viewIndex != -1) {
                Rectangle dirty = getCellRect(viewIndex, columnViewIndex,
                                              false);
                int x = dirty.x;
                int w = dirty.width;
                if (eventColumn == TableModelEvent.ALL_COLUMNS) {
                    x = 0;
                    w = getWidth();
                }
                repaint(x, dirty.y, w, dirty.height);
            }
        }
    }

    
Restores the selection after a model event/sort order changes.
All coordinates are in terms of the model.

/**
     * Restores the selection after a model event/sort order changes.
     * All coordinates are in terms of the model.
     */
    private void restoreSortingSelection(int[] selection, int lead,
            ModelChange change) {
        // Convert the selection from model to view
        for (int i = selection.length - 1; i >= 0; i--) {
            selection[i] = convertRowIndexToView(selection[i], change);
        }
        lead = convertRowIndexToView(lead, change);

        // Check for the common case of no change in selection for 1 row
        if (selection.length == 0 ||
            (selection.length == 1 && selection[0] == getSelectedRow())) {
            return;
        }

        // And apply the new selection
        selectionModel.setValueIsAdjusting(true);
        selectionModel.clearSelection();
        for (int i = selection.length - 1; i >= 0; i--) {
            if (selection[i] != -1) {
                selectionModel.addSelectionInterval(selection[i],
                                                    selection[i]);
            }
        }
        SwingUtilities2.setLeadAnchorWithoutSelection(
                selectionModel, lead, lead);
        selectionModel.setValueIsAdjusting(false);
    }

    
Restores the editing row after a model event/sort order change.

Params:
  • editingRow – new index of the editingRow, in terms of the view
/**
     * Restores the editing row after a model event/sort order change.
     *
     * @param editingRow new index of the editingRow, in terms of the view
     */
    private void restoreSortingEditingRow(int editingRow) {
        if (editingRow == -1) {
            // Editing row no longer being shown, cancel editing
            TableCellEditor editor = getCellEditor();
            if (editor != null) {
                // First try and cancel
                editor.cancelCellEditing();
                if (getCellEditor() != null) {
                    // CellEditor didn't cede control, forcefully
                    // remove it
                    removeEditor();
                }
            }
        }
        else {
            // Repositioning handled in BasicTableUI
            this.editingRow = editingRow;
            repaint();
        }
    }

    
Notifies the sorter of a change in the underlying model.

/**
     * Notifies the sorter of a change in the underlying model.
     */
    private void notifySorter(ModelChange change) {
        try {
            ignoreSortChange = true;
            sorterChanged = false;
            switch(change.type) {
            case TableModelEvent.UPDATE:
                if (change.event.getLastRow() == Integer.MAX_VALUE) {
                    sortManager.sorter.allRowsChanged();
                } else if (change.event.getColumn() ==
                           TableModelEvent.ALL_COLUMNS) {
                    sortManager.sorter.rowsUpdated(change.startModelIndex,
                                       change.endModelIndex);
                } else {
                    sortManager.sorter.rowsUpdated(change.startModelIndex,
                                       change.endModelIndex,
                                       change.event.getColumn());
                }
                break;
            case TableModelEvent.INSERT:
                sortManager.sorter.rowsInserted(change.startModelIndex,
                                    change.endModelIndex);
                break;
            case TableModelEvent.DELETE:
                sortManager.sorter.rowsDeleted(change.startModelIndex,
                                   change.endModelIndex);
                break;
            }
        } finally {
            ignoreSortChange = false;
        }
    }

    
Converts a model index to view index.  This is called when the
sorter or model changes and sorting is enabled.

Params:
  • change – describes the TableModelEvent that initiated the change;
       will be null if called as the result of a sort
/**
     * Converts a model index to view index.  This is called when the
     * sorter or model changes and sorting is enabled.
     *
     * @param change describes the TableModelEvent that initiated the change;
     *        will be null if called as the result of a sort
     */
    private int convertRowIndexToView(int modelIndex, ModelChange change) {
        if (modelIndex < 0) {
            return -1;
        }
        if (change != null && modelIndex >= change.startModelIndex) {
            if (change.type == TableModelEvent.INSERT) {
                if (modelIndex + change.length >= change.modelRowCount) {
                    return -1;
                }
                return sortManager.sorter.convertRowIndexToView(
                        modelIndex + change.length);
            }
            else if (change.type == TableModelEvent.DELETE) {
                if (modelIndex <= change.endModelIndex) {
                    // deleted
                    return -1;
                }
                else {
                    if (modelIndex - change.length >= change.modelRowCount) {
                        return -1;
                    }
                    return sortManager.sorter.convertRowIndexToView(
                            modelIndex - change.length);
                }
            }
            // else, updated
        }
        if (modelIndex >= getModel().getRowCount()) {
            return -1;
        }
        return sortManager.sorter.convertRowIndexToView(modelIndex);
    }

    
Converts the selection to model coordinates.  This is used when
the model changes or the sorter changes.

/**
     * Converts the selection to model coordinates.  This is used when
     * the model changes or the sorter changes.
     */
    private int[] convertSelectionToModel(RowSorterEvent e) {
        int[] selection = getSelectedRows();
        for (int i = selection.length - 1; i >= 0; i--) {
            selection[i] = convertRowIndexToModel(e, selection[i]);
        }
        return selection;
    }

    private int convertRowIndexToModel(RowSorterEvent e, int viewIndex) {
        if (e != null) {
            if (e.getPreviousRowCount() == 0) {
                return viewIndex;
            }
            // range checking handled by RowSorterEvent
            return e.convertPreviousRowIndexToModel(viewIndex);
        }
        // Make sure the viewIndex is valid
        if (viewIndex < 0 || viewIndex >= getRowCount()) {
            return -1;
        }
        return convertRowIndexToModel(viewIndex);
    }

//
// Implementing TableModelListener interface
//

    
Invoked when this table's TableModel generates
a TableModelEvent.
The TableModelEvent should be constructed in the
coordinate system of the model; the appropriate mapping to the
view coordinate system is performed by this JTable
when it receives the event.


Application code will not use these methods explicitly, they
are used internally by JTable.


Note that as of 1.3, this method clears the selection, if any.

/**
     * Invoked when this table's <code>TableModel</code> generates
     * a <code>TableModelEvent</code>.
     * The <code>TableModelEvent</code> should be constructed in the
     * coordinate system of the model; the appropriate mapping to the
     * view coordinate system is performed by this <code>JTable</code>
     * when it receives the event.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by <code>JTable</code>.
     * <p>
     * Note that as of 1.3, this method clears the selection, if any.
     */
    public void tableChanged(TableModelEvent e) {
        if (e == null || e.getFirstRow() == TableModelEvent.HEADER_ROW) {
            // The whole thing changed
            clearSelectionAndLeadAnchor();

            rowModel = null;

            if (sortManager != null) {
                try {
                    ignoreSortChange = true;
                    sortManager.sorter.modelStructureChanged();
                } finally {
                    ignoreSortChange = false;
                }
                sortManager.allChanged();
            }

            if (getAutoCreateColumnsFromModel()) {
                // This will effect invalidation of the JTable and JTableHeader.
                createDefaultColumnsFromModel();
                return;
            }

            resizeAndRepaint();
            return;
        }

        if (sortManager != null) {
            sortedTableChanged(null, e);
            return;
        }

        // The totalRowHeight calculated below will be incorrect if
        // there are variable height rows. Repaint the visible region,
        // but don't return as a revalidate may be necessary as well.
        if (rowModel != null) {
            repaint();
        }

        if (e.getType() == TableModelEvent.INSERT) {
            tableRowsInserted(e);
            return;
        }

        if (e.getType() == TableModelEvent.DELETE) {
            tableRowsDeleted(e);
            return;
        }

        int modelColumn = e.getColumn();
        int start = e.getFirstRow();
        int end = e.getLastRow();

        Rectangle dirtyRegion;
        if (modelColumn == TableModelEvent.ALL_COLUMNS) {
            // 1 or more rows changed
            dirtyRegion = new Rectangle(0, start * getRowHeight(),
                                        getColumnModel().getTotalColumnWidth(), 0);
        }
        else {
            // A cell or column of cells has changed.
            // Unlike the rest of the methods in the JTable, the TableModelEvent
            // uses the coordinate system of the model instead of the view.
            // This is the only place in the JTable where this "reverse mapping"
            // is used.
            int column = convertColumnIndexToView(modelColumn);
            dirtyRegion = getCellRect(start, column, false);
        }

        // Now adjust the height of the dirty region according to the value of "end".
        // Check for Integer.MAX_VALUE as this will cause an overflow.
        if (end != Integer.MAX_VALUE) {
            dirtyRegion.height = (end-start+1)*getRowHeight();
            repaint(dirtyRegion.x, dirtyRegion.y, dirtyRegion.width, dirtyRegion.height);
        }
        // In fact, if the end is Integer.MAX_VALUE we need to revalidate anyway
        // because the scrollbar may need repainting.
        else {
            clearSelectionAndLeadAnchor();
            resizeAndRepaint();
            rowModel = null;
        }
    }

    /*
     * Invoked when rows have been inserted into the table.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param e the TableModelEvent encapsulating the insertion
     */
    private void tableRowsInserted(TableModelEvent e) {
        int start = e.getFirstRow();
        int end = e.getLastRow();
        if (start < 0) {
            start = 0;
        }
        if (end < 0) {
            end = getRowCount()-1;
        }

        // Adjust the selection to account for the new rows.
        int length = end - start + 1;
        selectionModel.insertIndexInterval(start, length, true);

        // If we have variable height rows, adjust the row model.
        if (rowModel != null) {
            rowModel.insertEntries(start, length, getRowHeight());
        }
        int rh = getRowHeight() ;
        Rectangle drawRect = new Rectangle(0, start * rh,
                                        getColumnModel().getTotalColumnWidth(),
                                           (getRowCount()-start) * rh);

        revalidate();
        // PENDING(milne) revalidate calls repaint() if parent is a ScrollPane
        // repaint still required in the unusual case where there is no ScrollPane
        repaint(drawRect);
    }

    /*
     * Invoked when rows have been removed from the table.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param e the TableModelEvent encapsulating the deletion
     */
    private void tableRowsDeleted(TableModelEvent e) {
        int start = e.getFirstRow();
        int end = e.getLastRow();
        if (start < 0) {
            start = 0;
        }
        if (end < 0) {
            end = getRowCount()-1;
        }

        int deletedCount = end - start + 1;
        int previousRowCount = getRowCount() + deletedCount;
        // Adjust the selection to account for the new rows
        selectionModel.removeIndexInterval(start, end);

        // If we have variable height rows, adjust the row model.
        if (rowModel != null) {
            rowModel.removeEntries(start, deletedCount);
        }

        int rh = getRowHeight();
        Rectangle drawRect = new Rectangle(0, start * rh,
                                        getColumnModel().getTotalColumnWidth(),
                                        (previousRowCount - start) * rh);

        revalidate();
        // PENDING(milne) revalidate calls repaint() if parent is a ScrollPane
        // repaint still required in the unusual case where there is no ScrollPane
        repaint(drawRect);
    }

//
// Implementing TableColumnModelListener interface
//

    
Invoked when a column is added to the table column model.


Application code will not use these methods explicitly, they
are used internally by JTable.

See Also:
  • TableColumnModelListener
/**
     * Invoked when a column is added to the table column model.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @see TableColumnModelListener
     */
    public void columnAdded(TableColumnModelEvent e) {
        // If I'm currently editing, then I should stop editing
        if (isEditing()) {
            removeEditor();
        }
        resizeAndRepaint();
    }

    
Invoked when a column is removed from the table column model.


Application code will not use these methods explicitly, they
are used internally by JTable.

See Also:
  • TableColumnModelListener
/**
     * Invoked when a column is removed from the table column model.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @see TableColumnModelListener
     */
    public void columnRemoved(TableColumnModelEvent e) {
        // If I'm currently editing, then I should stop editing
        if (isEditing()) {
            removeEditor();
        }
        resizeAndRepaint();
    }

    
Invoked when a column is repositioned. If a cell is being
edited, then editing is stopped and the cell is redrawn.


Application code will not use these methods explicitly, they
are used internally by JTable.

Params:
  • e –   the event received
See Also:
/**
     * Invoked when a column is repositioned. If a cell is being
     * edited, then editing is stopped and the cell is redrawn.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param e   the event received
     * @see TableColumnModelListener
     */
    public void columnMoved(TableColumnModelEvent e) {
        if (isEditing() && !getCellEditor().stopCellEditing()) {
            getCellEditor().cancelCellEditing();
        }
        repaint();
    }

    
Invoked when a column is moved due to a margin change.
If a cell is being edited, then editing is stopped and the cell
is redrawn.


Application code will not use these methods explicitly, they
are used internally by JTable.

Params:
  • e –    the event received
See Also:
/**
     * Invoked when a column is moved due to a margin change.
     * If a cell is being edited, then editing is stopped and the cell
     * is redrawn.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param  e    the event received
     * @see TableColumnModelListener
     */
    public void columnMarginChanged(ChangeEvent e) {
        if (isEditing() && !getCellEditor().stopCellEditing()) {
            getCellEditor().cancelCellEditing();
        }
        TableColumn resizingColumn = getResizingColumn();
        // Need to do this here, before the parent's
        // layout manager calls getPreferredSize().
        if (resizingColumn != null && autoResizeMode == AUTO_RESIZE_OFF) {
            resizingColumn.setPreferredWidth(resizingColumn.getWidth());
        }
        resizeAndRepaint();
    }

    private int limit(int i, int a, int b) {
        return Math.min(b, Math.max(i, a));
    }

    
Invoked when the selection model of the TableColumnModel
is changed.


Application code will not use these methods explicitly, they
are used internally by JTable.

Params:
  • e –  the event received
See Also:
/**
     * Invoked when the selection model of the <code>TableColumnModel</code>
     * is changed.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param  e  the event received
     * @see TableColumnModelListener
     */
    public void columnSelectionChanged(ListSelectionEvent e) {
        boolean isAdjusting = e.getValueIsAdjusting();
        if (columnSelectionAdjusting && !isAdjusting) {
            // The assumption is that when the model is no longer adjusting
            // we will have already gotten all the changes, and therefore
            // don't need to do an additional paint.
            columnSelectionAdjusting = false;
            return;
        }
        columnSelectionAdjusting = isAdjusting;
        // The getCellRect() call will fail unless there is at least one row.
        if (getRowCount() <= 0 || getColumnCount() <= 0) {
            return;
        }
        int firstIndex = limit(e.getFirstIndex(), 0, getColumnCount()-1);
        int lastIndex = limit(e.getLastIndex(), 0, getColumnCount()-1);
        int minRow = 0;
        int maxRow = getRowCount() - 1;
        if (getRowSelectionAllowed()) {
            minRow = selectionModel.getMinSelectionIndex();
            maxRow = selectionModel.getMaxSelectionIndex();
            int leadRow = getAdjustedIndex(selectionModel.getLeadSelectionIndex(), true);

            if (minRow == -1 || maxRow == -1) {
                if (leadRow == -1) {
                    // nothing to repaint, return
                    return;
                }

                // only thing to repaint is the lead
                minRow = maxRow = leadRow;
            } else {
                // We need to consider more than just the range between
                // the min and max selected index. The lead row, which could
                // be outside this range, should be considered also.
                if (leadRow != -1) {
                    minRow = Math.min(minRow, leadRow);
                    maxRow = Math.max(maxRow, leadRow);
                }
            }
        }
        Rectangle firstColumnRect = getCellRect(minRow, firstIndex, false);
        Rectangle lastColumnRect = getCellRect(maxRow, lastIndex, false);
        Rectangle dirtyRegion = firstColumnRect.union(lastColumnRect);
        repaint(dirtyRegion);
    }

//
// Implementing ListSelectionListener interface
//

    
Invoked when the row selection changes -- repaints to show the new
selection.


Application code will not use these methods explicitly, they
are used internally by JTable.

Params:
  • e –   the event received
See Also:
/**
     * Invoked when the row selection changes -- repaints to show the new
     * selection.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param e   the event received
     * @see ListSelectionListener
     */
    public void valueChanged(ListSelectionEvent e) {
        if (sortManager != null) {
            sortManager.viewSelectionChanged(e);
        }
        boolean isAdjusting = e.getValueIsAdjusting();
        if (rowSelectionAdjusting && !isAdjusting) {
            // The assumption is that when the model is no longer adjusting
            // we will have already gotten all the changes, and therefore
            // don't need to do an additional paint.
            rowSelectionAdjusting = false;
            return;
        }
        rowSelectionAdjusting = isAdjusting;
        // The getCellRect() calls will fail unless there is at least one column.
        if (getRowCount() <= 0 || getColumnCount() <= 0) {
            return;
        }
        int firstIndex = limit(e.getFirstIndex(), 0, getRowCount()-1);
        int lastIndex = limit(e.getLastIndex(), 0, getRowCount()-1);
        Rectangle firstRowRect = getCellRect(firstIndex, 0, false);
        Rectangle lastRowRect = getCellRect(lastIndex, getColumnCount()-1, false);
        Rectangle dirtyRegion = firstRowRect.union(lastRowRect);
        repaint(dirtyRegion);
    }

//
// Implementing the CellEditorListener interface
//

    
Invoked when editing is finished. The changes are saved and the
editor is discarded.


Application code will not use these methods explicitly, they
are used internally by JTable.

Params:
  • e –  the event received
See Also:
/**
     * Invoked when editing is finished. The changes are saved and the
     * editor is discarded.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param  e  the event received
     * @see CellEditorListener
     */
    public void editingStopped(ChangeEvent e) {
        // Take in the new value
        TableCellEditor editor = getCellEditor();
        if (editor != null) {
            Object value = editor.getCellEditorValue();
            setValueAt(value, editingRow, editingColumn);
            removeEditor();
        }
    }

    
Invoked when editing is canceled. The editor object is discarded
and the cell is rendered once again.


Application code will not use these methods explicitly, they
are used internally by JTable.

Params:
  • e –  the event received
See Also:
/**
     * Invoked when editing is canceled. The editor object is discarded
     * and the cell is rendered once again.
     * <p>
     * Application code will not use these methods explicitly, they
     * are used internally by JTable.
     *
     * @param  e  the event received
     * @see CellEditorListener
     */
    public void editingCanceled(ChangeEvent e) {
        removeEditor();
    }

//
// Implementing the Scrollable interface
//

    
Sets the preferred size of the viewport for this table.

Params:
  • size –  a Dimension object specifying the preferredSize of a
             JViewport whose view is this table
See Also:
/**
     * Sets the preferred size of the viewport for this table.
     *
     * @param size  a <code>Dimension</code> object specifying the <code>preferredSize</code> of a
     *              <code>JViewport</code> whose view is this table
     * @see Scrollable#getPreferredScrollableViewportSize
     */
    @BeanProperty(bound = false, description
            = "The preferred size of the viewport.")
    public void setPreferredScrollableViewportSize(Dimension size) {
        preferredViewportSize = size;
    }

    
Returns the preferred size of the viewport for this table.

See Also:
Returns:a Dimension object containing the preferredSize of the JViewport
        which displays this table
/**
     * Returns the preferred size of the viewport for this table.
     *
     * @return a <code>Dimension</code> object containing the <code>preferredSize</code> of the <code>JViewport</code>
     *         which displays this table
     * @see Scrollable#getPreferredScrollableViewportSize
     */
    public Dimension getPreferredScrollableViewportSize() {
        return preferredViewportSize;
    }

    
Returns the scroll increment (in pixels) that completely exposes one new
row or column (depending on the orientation).


This method is called each time the user requests a unit scroll.

Params:
  • visibleRect – the view area visible within the viewport
  • orientation – either SwingConstants.VERTICAL
                 or SwingConstants.HORIZONTAL
  • direction – less than zero to scroll up/left,
                 greater than zero for down/right
See Also:
Returns:the "unit" increment for scrolling in the specified direction
/**
     * Returns the scroll increment (in pixels) that completely exposes one new
     * row or column (depending on the orientation).
     * <p>
     * This method is called each time the user requests a unit scroll.
     *
     * @param visibleRect the view area visible within the viewport
     * @param orientation either <code>SwingConstants.VERTICAL</code>
     *                  or <code>SwingConstants.HORIZONTAL</code>
     * @param direction less than zero to scroll up/left,
     *                  greater than zero for down/right
     * @return the "unit" increment for scrolling in the specified direction
     * @see Scrollable#getScrollableUnitIncrement
     */
    public int getScrollableUnitIncrement(Rectangle visibleRect,
                                          int orientation,
                                          int direction) {
        int leadingRow;
        int leadingCol;
        Rectangle leadingCellRect;

        int leadingVisibleEdge;
        int leadingCellEdge;
        int leadingCellSize;

        leadingRow = getLeadingRow(visibleRect);
        leadingCol = getLeadingCol(visibleRect);
        if (orientation == SwingConstants.VERTICAL && leadingRow < 0) {
            // Couldn't find leading row - return some default value
            return getRowHeight();
        }
        else if (orientation == SwingConstants.HORIZONTAL && leadingCol < 0) {
            // Couldn't find leading col - return some default value
            return 100;
        }

        // Note that it's possible for one of leadingCol or leadingRow to be
        // -1, depending on the orientation.  This is okay, as getCellRect()
        // still provides enough information to calculate the unit increment.
        leadingCellRect = getCellRect(leadingRow, leadingCol, true);
        leadingVisibleEdge = leadingEdge(visibleRect, orientation);
        leadingCellEdge = leadingEdge(leadingCellRect, orientation);

        if (orientation == SwingConstants.VERTICAL) {
            leadingCellSize = leadingCellRect.height;

        }
        else {
            leadingCellSize = leadingCellRect.width;
        }

        // 4 cases:
        // #1: Leading cell fully visible, reveal next cell
        // #2: Leading cell fully visible, hide leading cell
        // #3: Leading cell partially visible, hide rest of leading cell
        // #4: Leading cell partially visible, reveal rest of leading cell

        if (leadingVisibleEdge == leadingCellEdge) { // Leading cell is fully
                                                     // visible
            // Case #1: Reveal previous cell
            if (direction < 0) {
                int retVal = 0;

                if (orientation == SwingConstants.VERTICAL) {
                    // Loop past any zero-height rows
                    while (--leadingRow >= 0) {
                        retVal = getRowHeight(leadingRow);
                        if (retVal != 0) {
                            break;
                        }
                    }
                }
                else { // HORIZONTAL
                    // Loop past any zero-width cols
                    while (--leadingCol >= 0) {
                        retVal = getCellRect(leadingRow, leadingCol, true).width;
                        if (retVal != 0) {
                            break;
                        }
                    }
                }
                return retVal;
            }
            else { // Case #2: hide leading cell
                return leadingCellSize;
            }
        }
        else { // Leading cell is partially hidden
            // Compute visible, hidden portions
            int hiddenAmt = Math.abs(leadingVisibleEdge - leadingCellEdge);
            int visibleAmt = leadingCellSize - hiddenAmt;

            if (direction > 0) {
                // Case #3: hide showing portion of leading cell
                return visibleAmt;
            }
            else { // Case #4: reveal hidden portion of leading cell
                return hiddenAmt;
            }
        }
    }

    
Returns visibleRect.height or
visibleRect.width,
depending on this table's orientation.  Note that as of Swing 1.1.1
(Java 2 v 1.2.2) the value
returned will ensure that the viewport is cleanly aligned on
a row boundary.

See Also:
Returns:visibleRect.height or
                                 visibleRect.width
                                 per the orientation
/**
     * Returns <code>visibleRect.height</code> or
     * <code>visibleRect.width</code>,
     * depending on this table's orientation.  Note that as of Swing 1.1.1
     * (Java 2 v 1.2.2) the value
     * returned will ensure that the viewport is cleanly aligned on
     * a row boundary.
     *
     * @return <code>visibleRect.height</code> or
     *                                  <code>visibleRect.width</code>
     *                                  per the orientation
     * @see Scrollable#getScrollableBlockIncrement
     */
    public int getScrollableBlockIncrement(Rectangle visibleRect,
            int orientation, int direction) {

        if (getRowCount() == 0) {
            // Short-circuit empty table model
            if (SwingConstants.VERTICAL == orientation) {
                int rh = getRowHeight();
                return (rh > 0) ? Math.max(rh, (visibleRect.height / rh) * rh) :
                                  visibleRect.height;
            }
            else {
                return visibleRect.width;
            }
        }
        // Shortcut for vertical scrolling of a table w/ uniform row height
        if (null == rowModel && SwingConstants.VERTICAL == orientation) {
            int row = rowAtPoint(visibleRect.getLocation());
            assert row != -1;
            int col = columnAtPoint(visibleRect.getLocation());
            Rectangle cellRect = getCellRect(row, col, true);

            if (cellRect.y == visibleRect.y) {
                int rh = getRowHeight();
                assert rh > 0;
                return Math.max(rh, (visibleRect.height / rh) * rh);
            }
        }
        if (direction < 0) {
            return getPreviousBlockIncrement(visibleRect, orientation);
        }
        else {
            return getNextBlockIncrement(visibleRect, orientation);
        }
    }

    
Called to get the block increment for upward scrolling in cases of
horizontal scrolling, or for vertical scrolling of a table with
variable row heights.

/**
     * Called to get the block increment for upward scrolling in cases of
     * horizontal scrolling, or for vertical scrolling of a table with
     * variable row heights.
     */
    private int getPreviousBlockIncrement(Rectangle visibleRect,
                                          int orientation) {
        // Measure back from visible leading edge
        // If we hit the cell on its leading edge, it becomes the leading cell.
        // Else, use following cell

        int row;
        int col;

        int   newEdge;
        Point newCellLoc;

        int visibleLeadingEdge = leadingEdge(visibleRect, orientation);
        boolean leftToRight = getComponentOrientation().isLeftToRight();
        int newLeadingEdge;

        // Roughly determine the new leading edge by measuring back from the
        // leading visible edge by the size of the visible rect, and find the
        // cell there.
        if (orientation == SwingConstants.VERTICAL) {
            newEdge = visibleLeadingEdge - visibleRect.height;
            int x = visibleRect.x + (leftToRight ? 0 : visibleRect.width);
            newCellLoc = new Point(x, newEdge);
        }
        else if (leftToRight) {
            newEdge = visibleLeadingEdge - visibleRect.width;
            newCellLoc = new Point(newEdge, visibleRect.y);
        }
        else { // Horizontal, right-to-left
            newEdge = visibleLeadingEdge + visibleRect.width;
            newCellLoc = new Point(newEdge - 1, visibleRect.y);
        }
        row = rowAtPoint(newCellLoc);
        col = columnAtPoint(newCellLoc);

        // If we're measuring past the beginning of the table, we get an invalid
        // cell.  Just go to the beginning of the table in this case.
        if (orientation == SwingConstants.VERTICAL & row < 0) {
            newLeadingEdge = 0;
        }
        else if (orientation == SwingConstants.HORIZONTAL & col < 0) {
            if (leftToRight) {
                newLeadingEdge = 0;
            }
            else {
                newLeadingEdge = getWidth();
            }
        }
        else {
            // Refine our measurement
            Rectangle newCellRect = getCellRect(row, col, true);
            int newCellLeadingEdge = leadingEdge(newCellRect, orientation);
            int newCellTrailingEdge = trailingEdge(newCellRect, orientation);

            // Usually, we hit in the middle of newCell, and want to scroll to
            // the beginning of the cell after newCell.  But there are a
            // couple corner cases where we want to scroll to the beginning of
            // newCell itself.  These cases are:
            // 1) newCell is so large that it ends at or extends into the
            //    visibleRect (newCell is the leading cell, or is adjacent to
            //    the leading cell)
            // 2) newEdge happens to fall right on the beginning of a cell

            // Case 1
            if ((orientation == SwingConstants.VERTICAL || leftToRight) &&
                (newCellTrailingEdge >= visibleLeadingEdge)) {
                newLeadingEdge = newCellLeadingEdge;
            }
            else if (orientation == SwingConstants.HORIZONTAL &&
                     !leftToRight &&
                     newCellTrailingEdge <= visibleLeadingEdge) {
                newLeadingEdge = newCellLeadingEdge;
            }
            // Case 2:
            else if (newEdge == newCellLeadingEdge) {
                newLeadingEdge = newCellLeadingEdge;
            }
            // Common case: scroll to cell after newCell
            else {
                newLeadingEdge = newCellTrailingEdge;
            }
        }
        return Math.abs(visibleLeadingEdge - newLeadingEdge);
    }

    
Called to get the block increment for downward scrolling in cases of
horizontal scrolling, or for vertical scrolling of a table with
variable row heights.

/**
     * Called to get the block increment for downward scrolling in cases of
     * horizontal scrolling, or for vertical scrolling of a table with
     * variable row heights.
     */
    private int getNextBlockIncrement(Rectangle visibleRect,
                                      int orientation) {
        // Find the cell at the trailing edge.  Return the distance to put
        // that cell at the leading edge.
        int trailingRow = getTrailingRow(visibleRect);
        int trailingCol = getTrailingCol(visibleRect);

        Rectangle cellRect;
        boolean cellFillsVis;

        int cellLeadingEdge;
        int cellTrailingEdge;
        int newLeadingEdge;
        int visibleLeadingEdge = leadingEdge(visibleRect, orientation);

        // If we couldn't find trailing cell, just return the size of the
        // visibleRect.  Note that, for instance, we don't need the
        // trailingCol to proceed if we're scrolling vertically, because
        // cellRect will still fill in the required dimensions.  This would
        // happen if we're scrolling vertically, and the table is not wide
        // enough to fill the visibleRect.
        if (orientation == SwingConstants.VERTICAL && trailingRow < 0) {
            return visibleRect.height;
        }
        else if (orientation == SwingConstants.HORIZONTAL && trailingCol < 0) {
            return visibleRect.width;
        }
        cellRect = getCellRect(trailingRow, trailingCol, true);
        cellLeadingEdge = leadingEdge(cellRect, orientation);
        cellTrailingEdge = trailingEdge(cellRect, orientation);

        if (orientation == SwingConstants.VERTICAL ||
            getComponentOrientation().isLeftToRight()) {
            cellFillsVis = cellLeadingEdge <= visibleLeadingEdge;
        }
        else { // Horizontal, right-to-left
            cellFillsVis = cellLeadingEdge >= visibleLeadingEdge;
        }

        if (cellFillsVis) {
            // The visibleRect contains a single large cell.  Scroll to the end
            // of this cell, so the following cell is the first cell.
            newLeadingEdge = cellTrailingEdge;
        }
        else if (cellTrailingEdge == trailingEdge(visibleRect, orientation)) {
            // The trailing cell happens to end right at the end of the
            // visibleRect.  Again, scroll to the beginning of the next cell.
            newLeadingEdge = cellTrailingEdge;
        }
        else {
            // Common case: the trailing cell is partially visible, and isn't
            // big enough to take up the entire visibleRect.  Scroll so it
            // becomes the leading cell.
            newLeadingEdge = cellLeadingEdge;
        }
        return Math.abs(newLeadingEdge - visibleLeadingEdge);
    }

    /*
     * Return the row at the top of the visibleRect
     *
     * May return -1
     */
    private int getLeadingRow(Rectangle visibleRect) {
        Point leadingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            leadingPoint = new Point(visibleRect.x, visibleRect.y);
        }
        else {
            leadingPoint = new Point(visibleRect.x + visibleRect.width - 1,
                                     visibleRect.y);
        }
        return rowAtPoint(leadingPoint);
    }

    /*
     * Return the column at the leading edge of the visibleRect.
     *
     * May return -1
     */
    private int getLeadingCol(Rectangle visibleRect) {
        Point leadingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            leadingPoint = new Point(visibleRect.x, visibleRect.y);
        }
        else {
            leadingPoint = new Point(visibleRect.x + visibleRect.width - 1,
                                     visibleRect.y);
        }
        return columnAtPoint(leadingPoint);
    }

    /*
     * Return the row at the bottom of the visibleRect.
     *
     * May return -1
     */
    private int getTrailingRow(Rectangle visibleRect) {
        Point trailingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            trailingPoint = new Point(visibleRect.x,
                                      visibleRect.y + visibleRect.height - 1);
        }
        else {
            trailingPoint = new Point(visibleRect.x + visibleRect.width - 1,
                                      visibleRect.y + visibleRect.height - 1);
        }
        return rowAtPoint(trailingPoint);
    }

    /*
     * Return the column at the trailing edge of the visibleRect.
     *
     * May return -1
     */
    private int getTrailingCol(Rectangle visibleRect) {
        Point trailingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            trailingPoint = new Point(visibleRect.x + visibleRect.width - 1,
                                      visibleRect.y);
        }
        else {
            trailingPoint = new Point(visibleRect.x, visibleRect.y);
        }
        return columnAtPoint(trailingPoint);
    }

    /*
     * Returns the leading edge ("beginning") of the given Rectangle.
     * For VERTICAL, this is the top, for left-to-right, the left side, and for
     * right-to-left, the right side.
     */
    private int leadingEdge(Rectangle rect, int orientation) {
        if (orientation == SwingConstants.VERTICAL) {
            return rect.y;
        }
        else if (getComponentOrientation().isLeftToRight()) {
            return rect.x;
        }
        else { // Horizontal, right-to-left
            return rect.x + rect.width;
        }
    }

    /*
     * Returns the trailing edge ("end") of the given Rectangle.
     * For VERTICAL, this is the bottom, for left-to-right, the right side, and
     * for right-to-left, the left side.
     */
    private int trailingEdge(Rectangle rect, int orientation) {
        if (orientation == SwingConstants.VERTICAL) {
            return rect.y + rect.height;
        }
        else if (getComponentOrientation().isLeftToRight()) {
            return rect.x + rect.width;
        }
        else { // Horizontal, right-to-left
            return rect.x;
        }
    }

    
Returns false if autoResizeMode is set to
AUTO_RESIZE_OFF, which indicates that the
width of the viewport does not determine the width
of the table.  Otherwise returns true.

See Also:
Returns:false if autoResizeMode is set
  to AUTO_RESIZE_OFF, otherwise returns true
/**
     * Returns false if <code>autoResizeMode</code> is set to
     * <code>AUTO_RESIZE_OFF</code>, which indicates that the
     * width of the viewport does not determine the width
     * of the table.  Otherwise returns true.
     *
     * @return false if <code>autoResizeMode</code> is set
     *   to <code>AUTO_RESIZE_OFF</code>, otherwise returns true
     * @see Scrollable#getScrollableTracksViewportWidth
     */
    @BeanProperty(bound = false)
    public boolean getScrollableTracksViewportWidth() {
        return !(autoResizeMode == AUTO_RESIZE_OFF);
    }

    
Returns false to indicate that the height of the viewport does not determine the height of the table, unless getFillsViewportHeight is true and the preferred height of the table is smaller than the viewport's height. 
See Also:
Returns:false unless getFillsViewportHeight is true and the table needs to be stretched to fill the viewport
/**
     * Returns {@code false} to indicate that the height of the viewport does
     * not determine the height of the table, unless
     * {@code getFillsViewportHeight} is {@code true} and the preferred height
     * of the table is smaller than the viewport's height.
     *
     * @return {@code false} unless {@code getFillsViewportHeight} is
     *         {@code true} and the table needs to be stretched to fill
     *         the viewport
     * @see Scrollable#getScrollableTracksViewportHeight
     * @see #setFillsViewportHeight
     * @see #getFillsViewportHeight
     */
    @BeanProperty(bound = false)
    public boolean getScrollableTracksViewportHeight() {
        Container parent = SwingUtilities.getUnwrappedParent(this);
        return getFillsViewportHeight()
               && parent instanceof JViewport
               && parent.getHeight() > getPreferredSize().height;
    }

    
Sets whether or not this table is always made large enough to fill the height of an enclosing viewport. If the preferred height of the table is smaller than the viewport, then the table will be stretched to fill the viewport. In other words, this ensures the table is never smaller than the viewport. The default for this property is false. 
Params:
  • fillsViewportHeight – whether or not this table is always
       made large enough to fill the height of an enclosing
       viewport
See Also:
Since:1.6
/**
     * Sets whether or not this table is always made large enough
     * to fill the height of an enclosing viewport. If the preferred
     * height of the table is smaller than the viewport, then the table
     * will be stretched to fill the viewport. In other words, this
     * ensures the table is never smaller than the viewport.
     * The default for this property is {@code false}.
     *
     * @param fillsViewportHeight whether or not this table is always
     *        made large enough to fill the height of an enclosing
     *        viewport
     * @see #getFillsViewportHeight
     * @see #getScrollableTracksViewportHeight
     * @since 1.6
     */
    @BeanProperty(description
            = "Whether or not this table is always made large enough to fill the height of an enclosing viewport")
    public void setFillsViewportHeight(boolean fillsViewportHeight) {
        boolean old = this.fillsViewportHeight;
        this.fillsViewportHeight = fillsViewportHeight;
        resizeAndRepaint();
        firePropertyChange("fillsViewportHeight", old, fillsViewportHeight);
    }

    
Returns whether or not this table is always made large enough
to fill the height of an enclosing viewport.

See Also:
Returns:whether or not this table is always made large enough
        to fill the height of an enclosing viewport
Since:1.6
/**
     * Returns whether or not this table is always made large enough
     * to fill the height of an enclosing viewport.
     *
     * @return whether or not this table is always made large enough
     *         to fill the height of an enclosing viewport
     * @see #setFillsViewportHeight
     * @since 1.6
     */
    public boolean getFillsViewportHeight() {
        return fillsViewportHeight;
    }

//
// Protected Methods
//

    protected boolean processKeyBinding(KeyStroke ks, KeyEvent e,
                                        int condition, boolean pressed) {
        boolean retValue = super.processKeyBinding(ks, e, condition, pressed);

        // Start editing when a key is typed. UI classes can disable this behavior
        // by setting the client property JTable.autoStartsEdit to Boolean.FALSE.
        if (!retValue && condition == WHEN_ANCESTOR_OF_FOCUSED_COMPONENT &&
            isFocusOwner() &&
            !Boolean.FALSE.equals(getClientProperty("JTable.autoStartsEdit"))) {
            // We do not have a binding for the event.
            Component editorComponent = getEditorComponent();
            if (editorComponent == null) {
                // Only attempt to install the editor on a KEY_PRESSED,
                if (e == null || e.getID() != KeyEvent.KEY_PRESSED) {
                    return false;
                }
                // Don't start when just a modifier is pressed
                int code = e.getKeyCode();
                if (code == KeyEvent.VK_SHIFT || code == KeyEvent.VK_CONTROL ||
                    code == KeyEvent.VK_ALT || code == KeyEvent.VK_META ||
                    code == KeyEvent.VK_ALT_GRAPH) {
                    return false;
                }
                // Try to install the editor
                int leadRow = getSelectionModel().getLeadSelectionIndex();
                int leadColumn = getColumnModel().getSelectionModel().
                                   getLeadSelectionIndex();
                if (leadRow != -1 && leadColumn != -1 && !isEditing()) {
                    if (!editCellAt(leadRow, leadColumn, e)) {
                        return false;
                    }
                }
                editorComponent = getEditorComponent();
                if (editorComponent == null) {
                    return false;
                }
            }
            // If the editorComponent is a JComponent, pass the event to it.
            if (editorComponent instanceof JComponent) {
                retValue = ((JComponent)editorComponent).processKeyBinding
                                        (ks, e, WHEN_FOCUSED, pressed);
                // If we have started an editor as a result of the user
                // pressing a key and the surrendersFocusOnKeystroke property
                // is true, give the focus to the new editor.
                Object prop = getClientProperty("JTable.forceAutoStartsEdit");
                if (getSurrendersFocusOnKeystroke()
                        || Boolean.TRUE.equals(prop)) {
                    editorComponent.requestFocus();
                }
            }
        }
        return retValue;
    }

    
Creates default cell renderers for objects, numbers, doubles, dates,
booleans, and icons.

See Also:
  • DefaultTableCellRenderer
/**
     * Creates default cell renderers for objects, numbers, doubles, dates,
     * booleans, and icons.
     * @see javax.swing.table.DefaultTableCellRenderer
     *
     */
    protected void createDefaultRenderers() {
        defaultRenderersByColumnClass = new UIDefaults(8, 0.75f);

        // Objects
        defaultRenderersByColumnClass.put(Object.class, (UIDefaults.LazyValue)
                t -> new DefaultTableCellRenderer.UIResource());

        // Numbers
        defaultRenderersByColumnClass.put(Number.class, (UIDefaults.LazyValue)
                t -> new NumberRenderer());

        // Doubles and Floats
        defaultRenderersByColumnClass.put(Float.class, (UIDefaults.LazyValue)
                t -> new DoubleRenderer());
        defaultRenderersByColumnClass.put(Double.class, (UIDefaults.LazyValue)
                t -> new DoubleRenderer());

        // Dates
        defaultRenderersByColumnClass.put(Date.class, (UIDefaults.LazyValue)
                t -> new DateRenderer());

        // Icons and ImageIcons
        defaultRenderersByColumnClass.put(Icon.class, (UIDefaults.LazyValue)
                t -> new IconRenderer());
        defaultRenderersByColumnClass.put(ImageIcon.class, (UIDefaults.LazyValue)
                t -> new IconRenderer());

        // Booleans
        defaultRenderersByColumnClass.put(Boolean.class, (UIDefaults.LazyValue)
                t -> new BooleanRenderer());
    }

    
Default Renderers

/**
     * Default Renderers
     **/
    static class NumberRenderer extends DefaultTableCellRenderer.UIResource {
        public NumberRenderer() {
            super();
            setHorizontalAlignment(JLabel.RIGHT);
        }
    }

    static class DoubleRenderer extends NumberRenderer {
        NumberFormat formatter;
        public DoubleRenderer() { super(); }

        public void setValue(Object value) {
            if (formatter == null) {
                formatter = NumberFormat.getInstance();
            }
            setText((value == null) ? "" : formatter.format(value));
        }
    }

    static class DateRenderer extends DefaultTableCellRenderer.UIResource {
        DateFormat formatter;
        public DateRenderer() { super(); }

        public void setValue(Object value) {
            if (formatter==null) {
                formatter = DateFormat.getDateInstance();
            }
            setText((value == null) ? "" : formatter.format(value));
        }
    }

    static class IconRenderer extends DefaultTableCellRenderer.UIResource {
        public IconRenderer() {
            super();
            setHorizontalAlignment(JLabel.CENTER);
        }
        public void setValue(Object value) { setIcon((value instanceof Icon) ? (Icon)value : null); }
    }


    static class BooleanRenderer extends JCheckBox implements TableCellRenderer, UIResource
    {
        private static final Border noFocusBorder = new EmptyBorder(1, 1, 1, 1);

        public BooleanRenderer() {
            super();
            setHorizontalAlignment(JLabel.CENTER);
            setBorderPainted(true);
        }

        public Component getTableCellRendererComponent(JTable table, Object value,
                                                       boolean isSelected, boolean hasFocus, int row, int column) {
            if (isSelected) {
                setForeground(table.getSelectionForeground());
                super.setBackground(table.getSelectionBackground());
            }
            else {
                setForeground(table.getForeground());
                setBackground(table.getBackground());
            }
            setSelected((value != null && ((Boolean)value).booleanValue()));

            if (hasFocus) {
                setBorder(UIManager.getBorder("Table.focusCellHighlightBorder"));
            } else {
                setBorder(noFocusBorder);
            }

            return this;
        }
    }

    
Creates default cell editors for objects, numbers, and boolean values.

See Also:
  • DefaultCellEditor
/**
     * Creates default cell editors for objects, numbers, and boolean values.
     * @see DefaultCellEditor
     */
    protected void createDefaultEditors() {
        defaultEditorsByColumnClass = new UIDefaults(3, 0.75f);

        // Objects
        defaultEditorsByColumnClass.put(Object.class, (UIDefaults.LazyValue)
                t -> new GenericEditor());

        // Numbers
        defaultEditorsByColumnClass.put(Number.class, (UIDefaults.LazyValue)
                t -> new NumberEditor());

        // Booleans
        defaultEditorsByColumnClass.put(Boolean.class, (UIDefaults.LazyValue)
                t -> new BooleanEditor());
    }

    
Default Editors

/**
     * Default Editors
     */
    static class GenericEditor extends DefaultCellEditor {

        Class<?>[] argTypes = new Class<?>[]{String.class};
        java.lang.reflect.Constructor<?> constructor;
        Object value;

        public GenericEditor() {
            super(new JTextField());
            getComponent().setName("Table.editor");
        }

        public boolean stopCellEditing() {
            String s = (String)super.getCellEditorValue();
            // Here we are dealing with the case where a user
            // has deleted the string value in a cell, possibly
            // after a failed validation. Return null, so that
            // they have the option to replace the value with
            // null or use escape to restore the original.
            // For Strings, return "" for backward compatibility.
            try {
                if ("".equals(s)) {
                    if (constructor.getDeclaringClass() == String.class) {
                        value = s;
                    }
                    return super.stopCellEditing();
                }

                SwingUtilities2.checkAccess(constructor.getModifiers());
                value = constructor.newInstance(new Object[]{s});
            }
            catch (Exception e) {
                ((JComponent)getComponent()).setBorder(new LineBorder(Color.red));
                return false;
            }
            return super.stopCellEditing();
        }

        public Component getTableCellEditorComponent(JTable table, Object value,
                                                 boolean isSelected,
                                                 int row, int column) {
            this.value = null;
            ((JComponent)getComponent()).setBorder(new LineBorder(Color.black));
            try {
                Class<?> type = table.getColumnClass(column);
                // Since our obligation is to produce a value which is
                // assignable for the required type it is OK to use the
                // String constructor for columns which are declared
                // to contain Objects. A String is an Object.
                if (type == Object.class) {
                    type = String.class;
                }
                ReflectUtil.checkPackageAccess(type);
                SwingUtilities2.checkAccess(type.getModifiers());
                constructor = type.getConstructor(argTypes);
            }
            catch (Exception e) {
                return null;
            }
            return super.getTableCellEditorComponent(table, value, isSelected, row, column);
        }

        public Object getCellEditorValue() {
            return value;
        }
    }

    static class NumberEditor extends GenericEditor {

        public NumberEditor() {
            ((JTextField)getComponent()).setHorizontalAlignment(JTextField.RIGHT);
        }
    }

    static class BooleanEditor extends DefaultCellEditor {
        public BooleanEditor() {
            super(new JCheckBox());
            JCheckBox checkBox = (JCheckBox)getComponent();
            checkBox.setHorizontalAlignment(JCheckBox.CENTER);
        }
    }

    
Initializes table properties to their default values.

/**
     * Initializes table properties to their default values.
     */
    protected void initializeLocalVars() {
        updateSelectionOnSort = true;
        setOpaque(true);
        createDefaultRenderers();
        createDefaultEditors();

        setTableHeader(createDefaultTableHeader());

        setShowGrid(true);
        setAutoResizeMode(AUTO_RESIZE_SUBSEQUENT_COLUMNS);
        setRowHeight(16);
        isRowHeightSet = false;
        setRowMargin(1);
        setRowSelectionAllowed(true);
        setCellEditor(null);
        setEditingColumn(-1);
        setEditingRow(-1);
        setSurrendersFocusOnKeystroke(false);
        setPreferredScrollableViewportSize(new Dimension(450, 400));

        // I'm registered to do tool tips so we can draw tips for the renderers
        ToolTipManager toolTipManager = ToolTipManager.sharedInstance();
        toolTipManager.registerComponent(this);

        setAutoscrolls(true);
    }

    
Returns the default table model object, which is
a DefaultTableModel.  A subclass can override this
method to return a different table model object.

See Also:
Returns:the default table model object
/**
     * Returns the default table model object, which is
     * a <code>DefaultTableModel</code>.  A subclass can override this
     * method to return a different table model object.
     *
     * @return the default table model object
     * @see javax.swing.table.DefaultTableModel
     */
    protected TableModel createDefaultDataModel() {
        return new DefaultTableModel();
    }

    
Returns the default column model object, which is
a DefaultTableColumnModel.  A subclass can override this
method to return a different column model object.

See Also:
Returns:the default column model object
/**
     * Returns the default column model object, which is
     * a <code>DefaultTableColumnModel</code>.  A subclass can override this
     * method to return a different column model object.
     *
     * @return the default column model object
     * @see javax.swing.table.DefaultTableColumnModel
     */
    protected TableColumnModel createDefaultColumnModel() {
        return new DefaultTableColumnModel();
    }

    
Returns the default selection model object, which is
a DefaultListSelectionModel.  A subclass can override this
method to return a different selection model object.

See Also:
Returns:the default selection model object
/**
     * Returns the default selection model object, which is
     * a <code>DefaultListSelectionModel</code>.  A subclass can override this
     * method to return a different selection model object.
     *
     * @return the default selection model object
     * @see javax.swing.DefaultListSelectionModel
     */
    protected ListSelectionModel createDefaultSelectionModel() {
        return new DefaultListSelectionModel();
    }

    
Returns the default table header object, which is
a JTableHeader.  A subclass can override this
method to return a different table header object.

See Also:
Returns:the default table header object
/**
     * Returns the default table header object, which is
     * a <code>JTableHeader</code>.  A subclass can override this
     * method to return a different table header object.
     *
     * @return the default table header object
     * @see javax.swing.table.JTableHeader
     */
    protected JTableHeader createDefaultTableHeader() {
        return new JTableHeader(columnModel);
    }

    
Equivalent to revalidate followed by repaint.

/**
     * Equivalent to <code>revalidate</code> followed by <code>repaint</code>.
     */
    protected void resizeAndRepaint() {
        revalidate();
        repaint();
    }

    
Returns the active cell editor, which is null if the table is not currently editing. 
See Also:
Returns:the TableCellEditor that does the editing, or null if the table is not currently editing.
/**
     * Returns the active cell editor, which is {@code null} if the table
     * is not currently editing.
     *
     * @return the {@code TableCellEditor} that does the editing,
     *         or {@code null} if the table is not currently editing.
     * @see #cellEditor
     * @see #getCellEditor(int, int)
     */
    public TableCellEditor getCellEditor() {
        return cellEditor;
    }

    
Sets the active cell editor.

Params:
  • anEditor – the active cell editor
See Also:
/**
     * Sets the active cell editor.
     *
     * @param anEditor the active cell editor
     * @see #cellEditor
     */
    @BeanProperty(description
            = "The table's active cell editor.")
    public void setCellEditor(TableCellEditor anEditor) {
        TableCellEditor oldEditor = cellEditor;
        cellEditor = anEditor;
        firePropertyChange("tableCellEditor", oldEditor, anEditor);
    }

    
Sets the editingColumn variable.

Params:
  • aColumn –  the column of the cell to be edited
See Also:
/**
     * Sets the <code>editingColumn</code> variable.
     * @param aColumn  the column of the cell to be edited
     *
     * @see #editingColumn
     */
    public void setEditingColumn(int aColumn) {
        editingColumn = aColumn;
    }

    
Sets the editingRow variable.

Params:
  • aRow –  the row of the cell to be edited
See Also:
/**
     * Sets the <code>editingRow</code> variable.
     * @param aRow  the row of the cell to be edited
     *
     * @see #editingRow
     */
    public void setEditingRow(int aRow) {
        editingRow = aRow;
    }

    
Returns an appropriate renderer for the cell specified by this row and
column. If the TableColumn for this column has a non-null
renderer, returns that.  If not, finds the class of the data in
this column (using getColumnClass)
and returns the default renderer for this type of data.


Note:
Throughout the table package, the internal implementations always
use this method to provide renderers so that this default behavior
can be safely overridden by a subclass.

Params:
  • row –       the row of the cell to render, where 0 is the first row
  • column –    the column of the cell to render,
                 where 0 is the first column
See Also:
Returns:the assigned renderer; if null
                 returns the default renderer
                 for this type of object
/**
     * Returns an appropriate renderer for the cell specified by this row and
     * column. If the <code>TableColumn</code> for this column has a non-null
     * renderer, returns that.  If not, finds the class of the data in
     * this column (using <code>getColumnClass</code>)
     * and returns the default renderer for this type of data.
     * <p>
     * <b>Note:</b>
     * Throughout the table package, the internal implementations always
     * use this method to provide renderers so that this default behavior
     * can be safely overridden by a subclass.
     *
     * @param row       the row of the cell to render, where 0 is the first row
     * @param column    the column of the cell to render,
     *                  where 0 is the first column
     * @return the assigned renderer; if <code>null</code>
     *                  returns the default renderer
     *                  for this type of object
     * @see javax.swing.table.DefaultTableCellRenderer
     * @see javax.swing.table.TableColumn#setCellRenderer
     * @see #setDefaultRenderer
     */
    public TableCellRenderer getCellRenderer(int row, int column) {
        TableColumn tableColumn = getColumnModel().getColumn(column);
        TableCellRenderer renderer = tableColumn.getCellRenderer();
        if (renderer == null) {
            renderer = getDefaultRenderer(getColumnClass(column));
        }
        return renderer;
    }

    
Prepares the renderer by querying the data model for the
value and selection state
of the cell at row, column.
Returns the component (may be a Component
or a JComponent) under the event location.

 During a printing operation, this method will configure the renderer without indicating selection or focus, to prevent them from appearing in the printed output. To do other customizations based on whether or not the table is being printed, you can check the value of JComponent.isPaintingForPrint(), either here or within custom renderers. 

Note:
Throughout the table package, the internal implementations always
use this method to prepare renderers so that this default behavior
can be safely overridden by a subclass.

Params:
  • renderer –  the TableCellRenderer to prepare
  • row –       the row of the cell to render, where 0 is the first row
  • column –    the column of the cell to render,
                 where 0 is the first column
Returns:         the Component under the event location
/**
     * Prepares the renderer by querying the data model for the
     * value and selection state
     * of the cell at <code>row</code>, <code>column</code>.
     * Returns the component (may be a <code>Component</code>
     * or a <code>JComponent</code>) under the event location.
     * <p>
     * During a printing operation, this method will configure the
     * renderer without indicating selection or focus, to prevent
     * them from appearing in the printed output. To do other
     * customizations based on whether or not the table is being
     * printed, you can check the value of
     * {@link javax.swing.JComponent#isPaintingForPrint()}, either here
     * or within custom renderers.
     * <p>
     * <b>Note:</b>
     * Throughout the table package, the internal implementations always
     * use this method to prepare renderers so that this default behavior
     * can be safely overridden by a subclass.
     *
     * @param renderer  the <code>TableCellRenderer</code> to prepare
     * @param row       the row of the cell to render, where 0 is the first row
     * @param column    the column of the cell to render,
     *                  where 0 is the first column
     * @return          the <code>Component</code> under the event location
     */
    public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
        Object value = getValueAt(row, column);

        boolean isSelected = false;
        boolean hasFocus = false;

        // Only indicate the selection and focused cell if not printing
        if (!isPaintingForPrint()) {
            isSelected = isCellSelected(row, column);

            boolean rowIsLead =
                (selectionModel.getLeadSelectionIndex() == row);
            boolean colIsLead =
                (columnModel.getSelectionModel().getLeadSelectionIndex() == column);

            hasFocus = (rowIsLead && colIsLead) && isFocusOwner();
        }

        return renderer.getTableCellRendererComponent(this, value,
                                                      isSelected, hasFocus,
                                                      row, column);
    }

    
Returns an appropriate editor for the cell specified by
row and column. If the
TableColumn for this column has a non-null editor,
returns that.  If not, finds the class of the data in this
column (using getColumnClass)
and returns the default editor for this type of data.


Note:
Throughout the table package, the internal implementations always
use this method to provide editors so that this default behavior
can be safely overridden by a subclass.

Params:
  • row –       the row of the cell to edit, where 0 is the first row
  • column –    the column of the cell to edit,
                 where 0 is the first column
See Also:
Returns:         the editor for this cell;
                 if null return the default editor for
                 this type of cell
/**
     * Returns an appropriate editor for the cell specified by
     * <code>row</code> and <code>column</code>. If the
     * <code>TableColumn</code> for this column has a non-null editor,
     * returns that.  If not, finds the class of the data in this
     * column (using <code>getColumnClass</code>)
     * and returns the default editor for this type of data.
     * <p>
     * <b>Note:</b>
     * Throughout the table package, the internal implementations always
     * use this method to provide editors so that this default behavior
     * can be safely overridden by a subclass.
     *
     * @param row       the row of the cell to edit, where 0 is the first row
     * @param column    the column of the cell to edit,
     *                  where 0 is the first column
     * @return          the editor for this cell;
     *                  if <code>null</code> return the default editor for
     *                  this type of cell
     * @see DefaultCellEditor
     */
    public TableCellEditor getCellEditor(int row, int column) {
        TableColumn tableColumn = getColumnModel().getColumn(column);
        TableCellEditor editor = tableColumn.getCellEditor();
        if (editor == null) {
            editor = getDefaultEditor(getColumnClass(column));
        }
        return editor;
    }


    
Prepares the editor by querying the data model for the value and
selection state of the cell at row, column.


Note:
Throughout the table package, the internal implementations always
use this method to prepare editors so that this default behavior
can be safely overridden by a subclass.

Params:
  • editor –  the TableCellEditor to set up
  • row –     the row of the cell to edit,
               where 0 is the first row
  • column –  the column of the cell to edit,
               where 0 is the first column
Returns:the Component being edited
/**
     * Prepares the editor by querying the data model for the value and
     * selection state of the cell at <code>row</code>, <code>column</code>.
     * <p>
     * <b>Note:</b>
     * Throughout the table package, the internal implementations always
     * use this method to prepare editors so that this default behavior
     * can be safely overridden by a subclass.
     *
     * @param editor  the <code>TableCellEditor</code> to set up
     * @param row     the row of the cell to edit,
     *                where 0 is the first row
     * @param column  the column of the cell to edit,
     *                where 0 is the first column
     * @return the <code>Component</code> being edited
     */
    @SuppressWarnings("deprecation")
    public Component prepareEditor(TableCellEditor editor, int row, int column) {
        Object value = getValueAt(row, column);
        boolean isSelected = isCellSelected(row, column);
        Component comp = editor.getTableCellEditorComponent(this, value, isSelected,
                                                  row, column);
        if (comp instanceof JComponent) {
            JComponent jComp = (JComponent)comp;
            if (jComp.getNextFocusableComponent() == null) {
                jComp.setNextFocusableComponent(this);
            }
        }
        return comp;
    }

    
Discards the editor object and frees the real estate it used for
cell rendering.

/**
     * Discards the editor object and frees the real estate it used for
     * cell rendering.
     */
    public void removeEditor() {
        KeyboardFocusManager.getCurrentKeyboardFocusManager().
            removePropertyChangeListener("permanentFocusOwner", editorRemover);
        editorRemover = null;

        TableCellEditor editor = getCellEditor();
        if(editor != null) {
            editor.removeCellEditorListener(this);
            if (editorComp != null) {
                Component focusOwner =
                        KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
                boolean isFocusOwnerInTheTable = focusOwner != null?
                        SwingUtilities.isDescendingFrom(focusOwner, this):false;
                remove(editorComp);
                if(isFocusOwnerInTheTable) {
                    requestFocusInWindow();
                }
            }

            Rectangle cellRect = getCellRect(editingRow, editingColumn, false);

            setCellEditor(null);
            setEditingColumn(-1);
            setEditingRow(-1);
            editorComp = null;

            repaint(cellRect);
        }
    }

//
// Serialization
//

    
See readObject() and writeObject() in JComponent for more
information about serialization in Swing.

/**
     * See readObject() and writeObject() in JComponent for more
     * information about serialization in Swing.
     */
    private void writeObject(ObjectOutputStream s) throws IOException {
        s.defaultWriteObject();
        if (getUIClassID().equals(uiClassID)) {
            byte count = JComponent.getWriteObjCounter(this);
            JComponent.setWriteObjCounter(this, --count);
            if (count == 0 && ui != null) {
                ui.installUI(this);
            }
        }
    }

    private void readObject(ObjectInputStream s)
        throws IOException, ClassNotFoundException
    {
        ObjectInputStream.GetField f = s.readFields();

        TableModel newDataModel = (TableModel) f.get("dataModel", null);
        if (newDataModel == null) {
            throw new InvalidObjectException("Null dataModel");
        }
        dataModel = newDataModel;

        TableColumnModel newColumnModel = (TableColumnModel) f.get("columnModel", null);
        if (newColumnModel == null) {
            throw new InvalidObjectException("Null columnModel");
        }
        columnModel = newColumnModel;

        ListSelectionModel newSelectionModel = (ListSelectionModel) f.get("selectionModel", null);
        if (newSelectionModel == null) {
            throw new InvalidObjectException("Null selectionModel");
        }
        selectionModel = newSelectionModel;

        tableHeader = (JTableHeader) f.get("tableHeader", null);
        int newRowHeight = f.get("rowHeight", 0);
        if (newRowHeight <= 0) {
            throw new InvalidObjectException("Row height less than 1");
        }
        rowHeight = newRowHeight;

        rowMargin = f.get("rowMargin", 0);
        Color newGridColor = (Color) f.get("gridColor", null);
        if (newGridColor == null) {
            throw new InvalidObjectException("Null gridColor");
        }
        gridColor = newGridColor;

        showHorizontalLines = f.get("showHorizontalLines", false);
        showVerticalLines = f.get("showVerticalLines", false);
        int newAutoResizeMode = f.get("autoResizeMode", 0);
        if (!isValidAutoResizeMode(newAutoResizeMode)) {
            throw new InvalidObjectException("autoResizeMode is not valid");
        }
        autoResizeMode = newAutoResizeMode;
        autoCreateColumnsFromModel = f.get("autoCreateColumnsFromModel", false);
        preferredViewportSize = (Dimension) f.get("preferredViewportSize", null);
        rowSelectionAllowed = f.get("rowSelectionAllowed", false);
        cellSelectionEnabled = f.get("cellSelectionEnabled", false);
        selectionForeground = (Color) f.get("selectionForeground", null);
        selectionBackground = (Color) f.get("selectionBackground", null);
        rowModel = (SizeSequence) f.get("rowModel", null);

        boolean newDragEnabled = f.get("dragEnabled", false);
        checkDragEnabled(newDragEnabled);
        dragEnabled = newDragEnabled;

        surrendersFocusOnKeystroke = f.get("surrendersFocusOnKeystroke", false);
        editorRemover = (PropertyChangeListener) f.get("editorRemover", null);
        columnSelectionAdjusting = f.get("columnSelectionAdjusting", false);
        rowSelectionAdjusting = f.get("rowSelectionAdjusting", false);
        printError = (Throwable) f.get("printError", null);
        isRowHeightSet = f.get("isRowHeightSet", false);
        updateSelectionOnSort = f.get("updateSelectionOnSort", false);
        ignoreSortChange = f.get("ignoreSortChange", false);
        sorterChanged = f.get("sorterChanged", false);
        autoCreateRowSorter = f.get("autoCreateRowSorter", false);
        fillsViewportHeight = f.get("fillsViewportHeight", false);
        DropMode newDropMode = (DropMode) f.get("dropMode",
                DropMode.USE_SELECTION);
        checkDropMode(newDropMode);
        dropMode = newDropMode;

        if ((ui != null) && (getUIClassID().equals(uiClassID))) {
            ui.installUI(this);
        }
        createDefaultRenderers();
        createDefaultEditors();

        // If ToolTipText != null, then the tooltip has already been
        // registered by JComponent.readObject() and we don't want
        // to re-register here
        if (getToolTipText() == null) {
            ToolTipManager.sharedInstance().registerComponent(this);
         }
    }

    /* Called from the JComponent's EnableSerializationFocusListener to
     * do any Swing-specific pre-serialization configuration.
     */
    void compWriteObjectNotify() {
        super.compWriteObjectNotify();
        // If ToolTipText != null, then the tooltip has already been
        // unregistered by JComponent.compWriteObjectNotify()
        if (getToolTipText() == null) {
            ToolTipManager.sharedInstance().unregisterComponent(this);
        }
    }

    
Returns a string representation of this table. This method
is intended to be used only for debugging purposes, and the
content and format of the returned string may vary between
implementations. The returned string may be empty but may not
be null.

Returns: a string representation of this table
/**
     * Returns a string representation of this table. This method
     * is intended to be used only for debugging purposes, and the
     * content and format of the returned string may vary between
     * implementations. The returned string may be empty but may not
     * be <code>null</code>.
     *
     * @return  a string representation of this table
     */
    protected String paramString() {
        String gridColorString = (gridColor != null ?
                                  gridColor.toString() : "");
        String showHorizontalLinesString = (showHorizontalLines ?
                                            "true" : "false");
        String showVerticalLinesString = (showVerticalLines ?
                                          "true" : "false");
        String autoResizeModeString;
        if (autoResizeMode == AUTO_RESIZE_OFF) {
            autoResizeModeString = "AUTO_RESIZE_OFF";
        } else if (autoResizeMode == AUTO_RESIZE_NEXT_COLUMN) {
            autoResizeModeString = "AUTO_RESIZE_NEXT_COLUMN";
        } else if (autoResizeMode == AUTO_RESIZE_SUBSEQUENT_COLUMNS) {
            autoResizeModeString = "AUTO_RESIZE_SUBSEQUENT_COLUMNS";
        } else if (autoResizeMode == AUTO_RESIZE_LAST_COLUMN) {
            autoResizeModeString = "AUTO_RESIZE_LAST_COLUMN";
        } else if (autoResizeMode == AUTO_RESIZE_ALL_COLUMNS)  {
            autoResizeModeString = "AUTO_RESIZE_ALL_COLUMNS";
        } else autoResizeModeString = "";
        String autoCreateColumnsFromModelString = (autoCreateColumnsFromModel ?
                                                   "true" : "false");
        String preferredViewportSizeString = (preferredViewportSize != null ?
                                              preferredViewportSize.toString()
                                              : "");
        String rowSelectionAllowedString = (rowSelectionAllowed ?
                                            "true" : "false");
        String cellSelectionEnabledString = (cellSelectionEnabled ?
                                            "true" : "false");
        String selectionForegroundString = (selectionForeground != null ?
                                            selectionForeground.toString() :
                                            "");
        String selectionBackgroundString = (selectionBackground != null ?
                                            selectionBackground.toString() :
                                            "");

        return super.paramString() +
        ",autoCreateColumnsFromModel=" + autoCreateColumnsFromModelString +
        ",autoResizeMode=" + autoResizeModeString +
        ",cellSelectionEnabled=" + cellSelectionEnabledString +
        ",editingColumn=" + editingColumn +
        ",editingRow=" + editingRow +
        ",gridColor=" + gridColorString +
        ",preferredViewportSize=" + preferredViewportSizeString +
        ",rowHeight=" + rowHeight +
        ",rowMargin=" + rowMargin +
        ",rowSelectionAllowed=" + rowSelectionAllowedString +
        ",selectionBackground=" + selectionBackgroundString +
        ",selectionForeground=" + selectionForegroundString +
        ",showHorizontalLines=" + showHorizontalLinesString +
        ",showVerticalLines=" + showVerticalLinesString;
    }

    // This class tracks changes in the keyboard focus state. It is used
    // when the JTable is editing to determine when to cancel the edit.
    // If focus switches to a component outside of the jtable, but in the
    // same window, this will cancel editing.
    class CellEditorRemover implements PropertyChangeListener {
        KeyboardFocusManager focusManager;

        public CellEditorRemover(KeyboardFocusManager fm) {
            this.focusManager = fm;
        }

        @SuppressWarnings("deprecation")
        public void propertyChange(PropertyChangeEvent ev) {
            if (!isEditing() || getClientProperty("terminateEditOnFocusLost") != Boolean.TRUE) {
                return;
            }

            Component c = focusManager.getPermanentFocusOwner();
            while (c != null) {
                if (c == JTable.this) {
                    // focus remains inside the table
                    return;
                } else if ((c instanceof Window) ||
                           (c instanceof Applet && c.getParent() == null)) {
                    if (c == SwingUtilities.getRoot(JTable.this)) {
                        if (!getCellEditor().stopCellEditing()) {
                            getCellEditor().cancelCellEditing();
                        }
                    }
                    break;
                }
                c = c.getParent();
            }
        }
    }

/////////////////
// Printing Support
/////////////////

    
A convenience method that displays a printing dialog, and then prints
this JTable in mode PrintMode.FIT_WIDTH,
with no header or footer text. A modal progress dialog, with an abort
option, will be shown for the duration of printing.


Note: In headless mode, no dialogs are shown and printing
occurs on the default printer.

Throws:
See Also:
Returns:true, unless printing is cancelled by the user
Since:1.5
/**
     * A convenience method that displays a printing dialog, and then prints
     * this <code>JTable</code> in mode <code>PrintMode.FIT_WIDTH</code>,
     * with no header or footer text. A modal progress dialog, with an abort
     * option, will be shown for the duration of printing.
     * <p>
     * Note: In headless mode, no dialogs are shown and printing
     * occurs on the default printer.
     *
     * @return true, unless printing is cancelled by the user
     * @throws SecurityException if this thread is not allowed to
     *                           initiate a print job request
     * @throws PrinterException if an error in the print system causes the job
     *                          to be aborted
     * @see #print(JTable.PrintMode, MessageFormat, MessageFormat,
     *             boolean, PrintRequestAttributeSet, boolean, PrintService)
     * @see #getPrintable
     *
     * @since 1.5
     */
    public boolean print() throws PrinterException {

        return print(PrintMode.FIT_WIDTH);
    }

    
A convenience method that displays a printing dialog, and then prints
this JTable in the given printing mode,
with no header or footer text. A modal progress dialog, with an abort
option, will be shown for the duration of printing.


Note: In headless mode, no dialogs are shown and printing
occurs on the default printer.

Params:
  • printMode –        the printing mode that the printable should use
Throws:
See Also:
Returns:true, unless printing is cancelled by the user
Since:1.5
/**
     * A convenience method that displays a printing dialog, and then prints
     * this <code>JTable</code> in the given printing mode,
     * with no header or footer text. A modal progress dialog, with an abort
     * option, will be shown for the duration of printing.
     * <p>
     * Note: In headless mode, no dialogs are shown and printing
     * occurs on the default printer.
     *
     * @param  printMode        the printing mode that the printable should use
     * @return true, unless printing is cancelled by the user
     * @throws SecurityException if this thread is not allowed to
     *                           initiate a print job request
     * @throws PrinterException if an error in the print system causes the job
     *                          to be aborted
     * @see #print(JTable.PrintMode, MessageFormat, MessageFormat,
     *             boolean, PrintRequestAttributeSet, boolean, PrintService)
     * @see #getPrintable
     *
     * @since 1.5
     */
    public boolean print(PrintMode printMode) throws PrinterException {

        return print(printMode, null, null);
    }

    
A convenience method that displays a printing dialog, and then prints
this JTable in the given printing mode,
with the specified header and footer text. A modal progress dialog,
with an abort option, will be shown for the duration of printing.


Note: In headless mode, no dialogs are shown and printing
occurs on the default printer.

Params:
  • printMode –        the printing mode that the printable should use
  • headerFormat –     a MessageFormat specifying the text
                         to be used in printing a header,
                         or null for none
  • footerFormat –     a MessageFormat specifying the text
                         to be used in printing a footer,
                         or null for none
Throws:
See Also:
Returns:true, unless printing is cancelled by the user
Since:1.5
/**
     * A convenience method that displays a printing dialog, and then prints
     * this <code>JTable</code> in the given printing mode,
     * with the specified header and footer text. A modal progress dialog,
     * with an abort option, will be shown for the duration of printing.
     * <p>
     * Note: In headless mode, no dialogs are shown and printing
     * occurs on the default printer.
     *
     * @param  printMode        the printing mode that the printable should use
     * @param  headerFormat     a <code>MessageFormat</code> specifying the text
     *                          to be used in printing a header,
     *                          or null for none
     * @param  footerFormat     a <code>MessageFormat</code> specifying the text
     *                          to be used in printing a footer,
     *                          or null for none
     * @return true, unless printing is cancelled by the user
     * @throws SecurityException if this thread is not allowed to
     *                           initiate a print job request
     * @throws PrinterException if an error in the print system causes the job
     *                          to be aborted
     * @see #print(JTable.PrintMode, MessageFormat, MessageFormat,
     *             boolean, PrintRequestAttributeSet, boolean, PrintService)
     * @see #getPrintable
     *
     * @since 1.5
     */
    public boolean print(PrintMode printMode,
                         MessageFormat headerFormat,
                         MessageFormat footerFormat) throws PrinterException {

        boolean showDialogs = !GraphicsEnvironment.isHeadless();
        return print(printMode, headerFormat, footerFormat,
                     showDialogs, null, showDialogs);
    }

    
Prints this table, as specified by the fully featured print method, with the default printer specified as the print service. 
Params:
  • printMode –        the printing mode that the printable should use
  • headerFormat –     a MessageFormat specifying the text
                         to be used in printing a header,
                         or null for none
  • footerFormat –     a MessageFormat specifying the text
                         to be used in printing a footer,
                         or null for none
  • showPrintDialog –  whether or not to display a print dialog
  • attr –             a PrintRequestAttributeSet
                         specifying any printing attributes,
                         or null for none
  • interactive –      whether or not to print in an interactive mode
Throws:
  • HeadlessException – if the method is asked to show a printing
                          dialog or run interactively, and
                          GraphicsEnvironment.isHeadless
                          returns true
  • SecurityException – if this thread is not allowed to
                          initiate a print job request
  • PrinterException – if an error in the print system causes the job
                         to be aborted
See Also:
Returns:true, unless printing is cancelled by the user
Since:1.5
/**
     * Prints this table, as specified by the fully featured
     * {@link #print(JTable.PrintMode, MessageFormat, MessageFormat,
     * boolean, PrintRequestAttributeSet, boolean, PrintService) print}
     * method, with the default printer specified as the print service.
     *
     * @param  printMode        the printing mode that the printable should use
     * @param  headerFormat     a <code>MessageFormat</code> specifying the text
     *                          to be used in printing a header,
     *                          or <code>null</code> for none
     * @param  footerFormat     a <code>MessageFormat</code> specifying the text
     *                          to be used in printing a footer,
     *                          or <code>null</code> for none
     * @param  showPrintDialog  whether or not to display a print dialog
     * @param  attr             a <code>PrintRequestAttributeSet</code>
     *                          specifying any printing attributes,
     *                          or <code>null</code> for none
     * @param  interactive      whether or not to print in an interactive mode
     * @return true, unless printing is cancelled by the user
     * @throws HeadlessException if the method is asked to show a printing
     *                           dialog or run interactively, and
     *                           <code>GraphicsEnvironment.isHeadless</code>
     *                           returns <code>true</code>
     * @throws SecurityException if this thread is not allowed to
     *                           initiate a print job request
     * @throws PrinterException if an error in the print system causes the job
     *                          to be aborted
     * @see #print(JTable.PrintMode, MessageFormat, MessageFormat,
     *             boolean, PrintRequestAttributeSet, boolean, PrintService)
     * @see #getPrintable
     *
     * @since 1.5
     */
    public boolean print(PrintMode printMode,
                         MessageFormat headerFormat,
                         MessageFormat footerFormat,
                         boolean showPrintDialog,
                         PrintRequestAttributeSet attr,
                         boolean interactive) throws PrinterException,
                                                     HeadlessException {

        return print(printMode,
                     headerFormat,
                     footerFormat,
                     showPrintDialog,
                     attr,
                     interactive,
                     null);
    }

    
Prints this JTable. Takes steps that the majority of
developers would take in order to print a JTable.
In short, it prepares the table, calls getPrintable to
fetch an appropriate Printable, and then sends it to the
printer.


A boolean parameter allows you to specify whether or not
a printing dialog is displayed to the user. When it is, the user may
use the dialog to change the destination printer or printing attributes,
or even to cancel the print. Another two parameters allow for a
PrintService and printing attributes to be specified.
These parameters can be used either to provide initial values for the
print dialog, or to specify values when the dialog is not shown.


A second boolean parameter allows you to specify whether
or not to perform printing in an interactive mode. If true,
a modal progress dialog, with an abort option, is displayed for the
duration of printing . This dialog also prevents any user action which
may affect the table. However, it can not prevent the table from being
modified by code (for example, another thread that posts updates using
SwingUtilities.invokeLater). It is therefore the
responsibility of the developer to ensure that no other code modifies
the table in any way during printing (invalid modifications include
changes in: size, renderers, or underlying data). Printing behavior is
undefined when the table is changed during printing.


If false is specified for this parameter, no dialog will
be displayed and printing will begin immediately on the event-dispatch
thread. This blocks any other events, including repaints, from being
processed until printing is complete. Although this effectively prevents
the table from being changed, it doesn't provide a good user experience.
For this reason, specifying false is only recommended when
printing from an application with no visible GUI.


Note: Attempting to show the printing dialog or run interactively, while
in headless mode, will result in a HeadlessException.


Before fetching the printable, this method will gracefully terminate
editing, if necessary, to prevent an editor from showing in the printed
result. Additionally, JTable will prepare its renderers during printing such that selection and focus are not indicated. As far as customizing further how the table looks in the printout, developers can provide custom renderers or paint code that conditionalize on the value of JComponent.isPaintingForPrint(). 
 See getPrintable for more description on how the table is printed. 
Params:
  • printMode –        the printing mode that the printable should use
  • headerFormat –     a MessageFormat specifying the text
                         to be used in printing a header,
                         or null for none
  • footerFormat –     a MessageFormat specifying the text
                         to be used in printing a footer,
                         or null for none
  • showPrintDialog –  whether or not to display a print dialog
  • attr –             a PrintRequestAttributeSet
                         specifying any printing attributes,
                         or null for none
  • interactive –      whether or not to print in an interactive mode
  • service –          the destination PrintService,
                         or null to use the default printer
Throws:
See Also:
Returns:true, unless printing is cancelled by the user
Since:1.6
/**
     * Prints this <code>JTable</code>. Takes steps that the majority of
     * developers would take in order to print a <code>JTable</code>.
     * In short, it prepares the table, calls <code>getPrintable</code> to
     * fetch an appropriate <code>Printable</code>, and then sends it to the
     * printer.
     * <p>
     * A <code>boolean</code> parameter allows you to specify whether or not
     * a printing dialog is displayed to the user. When it is, the user may
     * use the dialog to change the destination printer or printing attributes,
     * or even to cancel the print. Another two parameters allow for a
     * <code>PrintService</code> and printing attributes to be specified.
     * These parameters can be used either to provide initial values for the
     * print dialog, or to specify values when the dialog is not shown.
     * <p>
     * A second <code>boolean</code> parameter allows you to specify whether
     * or not to perform printing in an interactive mode. If <code>true</code>,
     * a modal progress dialog, with an abort option, is displayed for the
     * duration of printing . This dialog also prevents any user action which
     * may affect the table. However, it can not prevent the table from being
     * modified by code (for example, another thread that posts updates using
     * <code>SwingUtilities.invokeLater</code>). It is therefore the
     * responsibility of the developer to ensure that no other code modifies
     * the table in any way during printing (invalid modifications include
     * changes in: size, renderers, or underlying data). Printing behavior is
     * undefined when the table is changed during printing.
     * <p>
     * If <code>false</code> is specified for this parameter, no dialog will
     * be displayed and printing will begin immediately on the event-dispatch
     * thread. This blocks any other events, including repaints, from being
     * processed until printing is complete. Although this effectively prevents
     * the table from being changed, it doesn't provide a good user experience.
     * For this reason, specifying <code>false</code> is only recommended when
     * printing from an application with no visible GUI.
     * <p>
     * Note: Attempting to show the printing dialog or run interactively, while
     * in headless mode, will result in a <code>HeadlessException</code>.
     * <p>
     * Before fetching the printable, this method will gracefully terminate
     * editing, if necessary, to prevent an editor from showing in the printed
     * result. Additionally, <code>JTable</code> will prepare its renderers
     * during printing such that selection and focus are not indicated.
     * As far as customizing further how the table looks in the printout,
     * developers can provide custom renderers or paint code that conditionalize
     * on the value of {@link javax.swing.JComponent#isPaintingForPrint()}.
     * <p>
     * See {@link #getPrintable} for more description on how the table is
     * printed.
     *
     * @param  printMode        the printing mode that the printable should use
     * @param  headerFormat     a <code>MessageFormat</code> specifying the text
     *                          to be used in printing a header,
     *                          or <code>null</code> for none
     * @param  footerFormat     a <code>MessageFormat</code> specifying the text
     *                          to be used in printing a footer,
     *                          or <code>null</code> for none
     * @param  showPrintDialog  whether or not to display a print dialog
     * @param  attr             a <code>PrintRequestAttributeSet</code>
     *                          specifying any printing attributes,
     *                          or <code>null</code> for none
     * @param  interactive      whether or not to print in an interactive mode
     * @param  service          the destination <code>PrintService</code>,
     *                          or <code>null</code> to use the default printer
     * @return true, unless printing is cancelled by the user
     * @throws HeadlessException if the method is asked to show a printing
     *                           dialog or run interactively, and
     *                           <code>GraphicsEnvironment.isHeadless</code>
     *                           returns <code>true</code>
     * @throws  SecurityException if a security manager exists and its
     *          {@link java.lang.SecurityManager#checkPrintJobAccess}
     *          method disallows this thread from creating a print job request
     * @throws PrinterException if an error in the print system causes the job
     *                          to be aborted
     * @see #getPrintable
     * @see java.awt.GraphicsEnvironment#isHeadless
     *
     * @since 1.6
     */
    public boolean print(PrintMode printMode,
                         MessageFormat headerFormat,
                         MessageFormat footerFormat,
                         boolean showPrintDialog,
                         PrintRequestAttributeSet attr,
                         boolean interactive,
                         PrintService service) throws PrinterException,
                                                      HeadlessException {

        // complain early if an invalid parameter is specified for headless mode
        boolean isHeadless = GraphicsEnvironment.isHeadless();
        if (isHeadless) {
            if (showPrintDialog) {
                throw new HeadlessException("Can't show print dialog.");
            }

            if (interactive) {
                throw new HeadlessException("Can't run interactively.");
            }
        }

        // Get a PrinterJob.
        // Do this before anything with side-effects since it may throw a
        // security exception - in which case we don't want to do anything else.
        final PrinterJob job = PrinterJob.getPrinterJob();

        if (isEditing()) {
            // try to stop cell editing, and failing that, cancel it
            if (!getCellEditor().stopCellEditing()) {
                getCellEditor().cancelCellEditing();
            }
        }

        if (attr == null) {
            attr = new HashPrintRequestAttributeSet();
        }

        final PrintingStatus printingStatus;

         // fetch the Printable
        Printable printable =
             getPrintable(printMode, headerFormat, footerFormat);

        if (interactive) {
            // wrap the Printable so that we can print on another thread
            printable = new ThreadSafePrintable(printable);
            printingStatus = PrintingStatus.createPrintingStatus(this, job);
            printable = printingStatus.createNotificationPrintable(printable);
        } else {
            // to please compiler
            printingStatus = null;
        }

        // set the printable on the PrinterJob
        job.setPrintable(printable);

        // if specified, set the PrintService on the PrinterJob
        if (service != null) {
            job.setPrintService(service);
        }

        // if requested, show the print dialog
        if (showPrintDialog && !job.printDialog(attr)) {
            // the user cancelled the print dialog
            return false;
        }

        // if not interactive, just print on this thread (no dialog)
        if (!interactive) {
            // do the printing
            job.print(attr);

            // we're done
            return true;
        }

        // make sure this is clear since we'll check it after
        printError = null;

        // to synchronize on
        final Object lock = new Object();

        // copied so we can access from the inner class
        final PrintRequestAttributeSet copyAttr = attr;

        // this runnable will be used to do the printing
        // (and save any throwables) on another thread
        Runnable runnable = () -> {
            try {
                // do the printing
                job.print(copyAttr);
            } catch (Throwable t) {
                // save any Throwable to be rethrown
                synchronized(lock) {
                    printError = t;
                }
            } finally {
                // we're finished - hide the dialog
                printingStatus.dispose();
            }
        };

        // start printing on another thread
        Thread th = new Thread(null, runnable, "JTablePrint", 0, false);
        th.start();

        printingStatus.showModal(true);

        // look for any error that the printing may have generated
        Throwable pe;
        synchronized(lock) {
            pe = printError;
            printError = null;
        }

        // check the type of error and handle it
        if (pe != null) {
            // a subclass of PrinterException meaning the job was aborted,
            // in this case, by the user
            if (pe instanceof PrinterAbortException) {
                return false;
            } else if (pe instanceof PrinterException) {
                throw (PrinterException)pe;
            } else if (pe instanceof RuntimeException) {
                throw (RuntimeException)pe;
            } else if (pe instanceof Error) {
                throw (Error)pe;
            }

            // can not happen
            throw new AssertionError(pe);
        }

        return true;
    }

    
Return a Printable for use in printing this JTable.


This method is meant for those wishing to customize the default
Printable implementation used by JTable's
print methods. Developers wanting simply to print the table
should use one of those methods directly.


The Printable can be requested in one of two printing modes.
In both modes, it spreads table rows naturally in sequence across
multiple pages, fitting as many rows as possible per page.
PrintMode.NORMAL specifies that the table be
printed at its current size. In this mode, there may be a need to spread
columns across pages in a similar manner to that of the rows. When the
need arises, columns are distributed in an order consistent with the
table's ComponentOrientation.
PrintMode.FIT_WIDTH specifies that the output be
scaled smaller, if necessary, to fit the table's entire width
(and thereby all columns) on each page. Width and height are scaled
equally, maintaining the aspect ratio of the output.


The Printable heads the portion of table on each page
with the appropriate section from the table's JTableHeader,
if it has one.


Header and footer text can be added to the output by providing
MessageFormat arguments. The printing code requests
Strings from the formats, providing a single item which may be included
in the formatted string: an Integer representing the current
page number.


You are encouraged to read the documentation for
MessageFormat as some characters, such as single-quote,
are special and need to be escaped.


Here's an example of creating a MessageFormat that can be
used to print "Duke's Table: Page - " and the current page number:

    // notice the escaping of the single quote
    // notice how the page number is included with "{0}"
    MessageFormat format = new MessageFormat("Duke''s Table: Page - {0}");




The Printable constrains what it draws to the printable
area of each page that it prints. Under certain circumstances, it may
find it impossible to fit all of a page's content into that area. In
these cases the output may be clipped, but the implementation
makes an effort to do something reasonable. Here are a few situations
where this is known to occur, and how they may be handled by this
particular implementation:

    
  
  • In any mode, when the header or footer text is too wide to fit
      completely in the printable area -- print as much of the text as
      possible starting from the beginning, as determined by the table's
      ComponentOrientation.
  
  • In any mode, when a row is too tall to fit in the
      printable area -- print the upper-most portion of the row
      and paint no lower border on the table.
  
  • In PrintMode.NORMAL when a column
      is too wide to fit in the printable area -- print the center
      portion of the column and leave the left and right borders
      off the table.




It is entirely valid for this Printable to be wrapped
inside another in order to create complex reports and documents. You may
even request that different pages be rendered into different sized
printable areas. The implementation must be prepared to handle this
(possibly by doing its layout calculations on the fly). However,
providing different heights to each page will likely not work well
with PrintMode.NORMAL when it has to spread columns
across pages.


As far as customizing how the table looks in the printed result,
JTable itself will take care of hiding the selection and focus during printing. For additional customizations, your renderers or painting code can customize the look based on the value of JComponent.isPaintingForPrint() 

Also, before calling this method you may wish to first
modify the state of the table, such as to cancel cell editing or
have the user size the table appropriately. However, you must not
modify the state of the table after this Printable
has been fetched (invalid modifications include changes in size or
underlying data). The behavior of the returned Printable
is undefined once the table has been changed.

Params:
  • printMode –     the printing mode that the printable should use
  • headerFormat –  a MessageFormat specifying the text to
                      be used in printing a header, or null for none
  • footerFormat –  a MessageFormat specifying the text to
                      be used in printing a footer, or null for none
See Also:
Returns:a Printable for printing this JTable
Since:1.5
/**
     * Return a <code>Printable</code> for use in printing this JTable.
     * <p>
     * This method is meant for those wishing to customize the default
     * <code>Printable</code> implementation used by <code>JTable</code>'s
     * <code>print</code> methods. Developers wanting simply to print the table
     * should use one of those methods directly.
     * <p>
     * The <code>Printable</code> can be requested in one of two printing modes.
     * In both modes, it spreads table rows naturally in sequence across
     * multiple pages, fitting as many rows as possible per page.
     * <code>PrintMode.NORMAL</code> specifies that the table be
     * printed at its current size. In this mode, there may be a need to spread
     * columns across pages in a similar manner to that of the rows. When the
     * need arises, columns are distributed in an order consistent with the
     * table's <code>ComponentOrientation</code>.
     * <code>PrintMode.FIT_WIDTH</code> specifies that the output be
     * scaled smaller, if necessary, to fit the table's entire width
     * (and thereby all columns) on each page. Width and height are scaled
     * equally, maintaining the aspect ratio of the output.
     * <p>
     * The <code>Printable</code> heads the portion of table on each page
     * with the appropriate section from the table's <code>JTableHeader</code>,
     * if it has one.
     * <p>
     * Header and footer text can be added to the output by providing
     * <code>MessageFormat</code> arguments. The printing code requests
     * Strings from the formats, providing a single item which may be included
     * in the formatted string: an <code>Integer</code> representing the current
     * page number.
     * <p>
     * You are encouraged to read the documentation for
     * <code>MessageFormat</code> as some characters, such as single-quote,
     * are special and need to be escaped.
     * <p>
     * Here's an example of creating a <code>MessageFormat</code> that can be
     * used to print "Duke's Table: Page - " and the current page number:
     *
     * <pre>
     *     // notice the escaping of the single quote
     *     // notice how the page number is included with "{0}"
     *     MessageFormat format = new MessageFormat("Duke''s Table: Page - {0}");
     * </pre>
     * <p>
     * The <code>Printable</code> constrains what it draws to the printable
     * area of each page that it prints. Under certain circumstances, it may
     * find it impossible to fit all of a page's content into that area. In
     * these cases the output may be clipped, but the implementation
     * makes an effort to do something reasonable. Here are a few situations
     * where this is known to occur, and how they may be handled by this
     * particular implementation:
     * <ul>
     *   <li>In any mode, when the header or footer text is too wide to fit
     *       completely in the printable area -- print as much of the text as
     *       possible starting from the beginning, as determined by the table's
     *       <code>ComponentOrientation</code>.
     *   <li>In any mode, when a row is too tall to fit in the
     *       printable area -- print the upper-most portion of the row
     *       and paint no lower border on the table.
     *   <li>In <code>PrintMode.NORMAL</code> when a column
     *       is too wide to fit in the printable area -- print the center
     *       portion of the column and leave the left and right borders
     *       off the table.
     * </ul>
     * <p>
     * It is entirely valid for this <code>Printable</code> to be wrapped
     * inside another in order to create complex reports and documents. You may
     * even request that different pages be rendered into different sized
     * printable areas. The implementation must be prepared to handle this
     * (possibly by doing its layout calculations on the fly). However,
     * providing different heights to each page will likely not work well
     * with <code>PrintMode.NORMAL</code> when it has to spread columns
     * across pages.
     * <p>
     * As far as customizing how the table looks in the printed result,
     * <code>JTable</code> itself will take care of hiding the selection
     * and focus during printing. For additional customizations, your
     * renderers or painting code can customize the look based on the value
     * of {@link javax.swing.JComponent#isPaintingForPrint()}
     * <p>
     * Also, <i>before</i> calling this method you may wish to <i>first</i>
     * modify the state of the table, such as to cancel cell editing or
     * have the user size the table appropriately. However, you must not
     * modify the state of the table <i>after</i> this <code>Printable</code>
     * has been fetched (invalid modifications include changes in size or
     * underlying data). The behavior of the returned <code>Printable</code>
     * is undefined once the table has been changed.
     *
     * @param  printMode     the printing mode that the printable should use
     * @param  headerFormat  a <code>MessageFormat</code> specifying the text to
     *                       be used in printing a header, or null for none
     * @param  footerFormat  a <code>MessageFormat</code> specifying the text to
     *                       be used in printing a footer, or null for none
     * @return a <code>Printable</code> for printing this JTable
     * @see #print(JTable.PrintMode, MessageFormat, MessageFormat,
     *             boolean, PrintRequestAttributeSet, boolean)
     * @see Printable
     * @see PrinterJob
     *
     * @since 1.5
     */
    public Printable getPrintable(PrintMode printMode,
                                  MessageFormat headerFormat,
                                  MessageFormat footerFormat) {

        return new TablePrintable(this, printMode, headerFormat, footerFormat);
    }


    
A Printable implementation that wraps another
Printable, making it safe for printing on another thread.

/**
     * A <code>Printable</code> implementation that wraps another
     * <code>Printable</code>, making it safe for printing on another thread.
     */
    private class ThreadSafePrintable implements Printable {

        
The delegate Printable. 
/** The delegate <code>Printable</code>. */
        private Printable printDelegate;

        
To communicate any return value when delegating.

/**
         * To communicate any return value when delegating.
         */
        private int retVal;

        
To communicate any Throwable when delegating.

/**
         * To communicate any <code>Throwable</code> when delegating.
         */
        private Throwable retThrowable;

        
Construct a ThreadSafePrintable around the given
delegate.

Params:
  • printDelegate – the Printable to delegate to
/**
         * Construct a <code>ThreadSafePrintable</code> around the given
         * delegate.
         *
         * @param printDelegate the <code>Printable</code> to delegate to
         */
        public ThreadSafePrintable(Printable printDelegate) {
            this.printDelegate = printDelegate;
        }

        
Prints the specified page into the given Graphics context, in the specified format. 

Regardless of what thread this method is called on, all calls into
the delegate will be done on the event-dispatch thread.

Params:
  • graphics –    the context into which the page is drawn
  • pageFormat –  the size and orientation of the page being drawn
  • pageIndex –   the zero based index of the page to be drawn
Throws:
Returns: PAGE_EXISTS if the page is rendered successfully, or
         NO_SUCH_PAGE if a non-existent page index is specified
/**
         * Prints the specified page into the given {@link Graphics}
         * context, in the specified format.
         * <p>
         * Regardless of what thread this method is called on, all calls into
         * the delegate will be done on the event-dispatch thread.
         *
         * @param   graphics    the context into which the page is drawn
         * @param   pageFormat  the size and orientation of the page being drawn
         * @param   pageIndex   the zero based index of the page to be drawn
         * @return  PAGE_EXISTS if the page is rendered successfully, or
         *          NO_SUCH_PAGE if a non-existent page index is specified
         * @throws  PrinterException if an error causes printing to be aborted
         */
        public int print(final Graphics graphics,
                         final PageFormat pageFormat,
                         final int pageIndex) throws PrinterException {

            // We'll use this Runnable
            Runnable runnable = new Runnable() {
                public synchronized void run() {
                    try {
                        // call into the delegate and save the return value
                        retVal = printDelegate.print(graphics, pageFormat, pageIndex);
                    } catch (Throwable throwable) {
                        // save any Throwable to be rethrown
                        retThrowable = throwable;
                    } finally {
                        // notify the caller that we're done
                        notifyAll();
                    }
                }
            };

            synchronized(runnable) {
                // make sure these are initialized
                retVal = -1;
                retThrowable = null;

                // call into the EDT
                SwingUtilities.invokeLater(runnable);

                // wait for the runnable to finish
                while (retVal == -1 && retThrowable == null) {
                    try {
                        runnable.wait();
                    } catch (InterruptedException ie) {
                        // short process, safe to ignore interrupts
                    }
                }

                // if the delegate threw a throwable, rethrow it here
                if (retThrowable != null) {
                    if (retThrowable instanceof PrinterException) {
                        throw (PrinterException)retThrowable;
                    } else if (retThrowable instanceof RuntimeException) {
                        throw (RuntimeException)retThrowable;
                    } else if (retThrowable instanceof Error) {
                        throw (Error)retThrowable;
                    }

                    // can not happen
                    throw new AssertionError(retThrowable);
                }

                return retVal;
            }
        }
    }

/////////////////
// Accessibility support
////////////////

    
Gets the AccessibleContext associated with this JTable.
For tables, the AccessibleContext takes the form of an
AccessibleJTable.
A new AccessibleJTable instance is created if necessary.

Returns:an AccessibleJTable that serves as the
        AccessibleContext of this JTable
/**
     * Gets the AccessibleContext associated with this JTable.
     * For tables, the AccessibleContext takes the form of an
     * AccessibleJTable.
     * A new AccessibleJTable instance is created if necessary.
     *
     * @return an AccessibleJTable that serves as the
     *         AccessibleContext of this JTable
     */
    @BeanProperty(bound = false)
    public AccessibleContext getAccessibleContext() {
        if (accessibleContext == null) {
            accessibleContext = new AccessibleJTable();
        }
        return accessibleContext;
    }

    //
    // *** should also implement AccessibleSelection?
    // *** and what's up with keyboard navigation/manipulation?
    //
    
This class implements accessibility support for the
JTable class.  It provides an implementation of the
Java Accessibility API appropriate to table user-interface elements.


Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing.  As of 1.4, support for long term storage
of all JavaBeans™
has been added to the java.beans package. Please see XMLEncoder. 
/**
     * This class implements accessibility support for the
     * <code>JTable</code> class.  It provides an implementation of the
     * Java Accessibility API appropriate to table user-interface elements.
     * <p>
     * <strong>Warning:</strong>
     * Serialized objects of this class will not be compatible with
     * future Swing releases. The current serialization support is
     * appropriate for short term storage or RMI between applications running
     * the same version of Swing.  As of 1.4, support for long term storage
     * of all JavaBeans&trade;
     * has been added to the <code>java.beans</code> package.
     * Please see {@link java.beans.XMLEncoder}.
     */
    @SuppressWarnings("serial") // Same-version serialization only
    protected class AccessibleJTable extends AccessibleJComponent
    implements AccessibleSelection, ListSelectionListener, TableModelListener,
    TableColumnModelListener, CellEditorListener, PropertyChangeListener,
    AccessibleExtendedTable {

        int previousFocusedRow;
        int previousFocusedCol;

        
AccessibleJTable constructor

Since:1.5
/**
         * AccessibleJTable constructor
         *
         * @since 1.5
         */
        protected AccessibleJTable() {
            super();
            JTable.this.putClientProperty("JTable.forceAutoStartsEdit", true);
            JTable.this.addPropertyChangeListener(this);
            JTable.this.getSelectionModel().addListSelectionListener(this);
            TableColumnModel tcm = JTable.this.getColumnModel();
            tcm.addColumnModelListener(this);
            tcm.getSelectionModel().addListSelectionListener(this);
            JTable.this.getModel().addTableModelListener(this);
            previousFocusedRow = JTable.this.getSelectionModel().
                                        getLeadSelectionIndex();
            previousFocusedCol = JTable.this.getColumnModel().
                                        getSelectionModel().getLeadSelectionIndex();
        }

    // Listeners to track model, etc. changes to as to re-place the other
    // listeners

        
Track changes to selection model, column model, etc. so as to
be able to re-place listeners on those in order to pass on
information to the Accessibility PropertyChange mechanism

/**
         * Track changes to selection model, column model, etc. so as to
         * be able to re-place listeners on those in order to pass on
         * information to the Accessibility PropertyChange mechanism
         */
        public void propertyChange(PropertyChangeEvent e) {
            String name = e.getPropertyName();
            Object oldValue = e.getOldValue();
            Object newValue = e.getNewValue();

                // re-set tableModel listeners
            if (name.compareTo("model") == 0) {

                if (oldValue != null && oldValue instanceof TableModel) {
                    ((TableModel) oldValue).removeTableModelListener(this);
                }
                if (newValue != null && newValue instanceof TableModel) {
                    ((TableModel) newValue).addTableModelListener(this);
                }

                // re-set selectionModel listeners
            } else if (name.compareTo("selectionModel") == 0) {

                Object source = e.getSource();
                if (source == JTable.this) {    // row selection model

                    if (oldValue != null &&
                        oldValue instanceof ListSelectionModel) {
                        ((ListSelectionModel) oldValue).removeListSelectionListener(this);
                    }
                    if (newValue != null &&
                        newValue instanceof ListSelectionModel) {
                        ((ListSelectionModel) newValue).addListSelectionListener(this);
                    }

                } else if (source == JTable.this.getColumnModel()) {

                    if (oldValue != null &&
                        oldValue instanceof ListSelectionModel) {
                        ((ListSelectionModel) oldValue).removeListSelectionListener(this);
                    }
                    if (newValue != null &&
                        newValue instanceof ListSelectionModel) {
                        ((ListSelectionModel) newValue).addListSelectionListener(this);
                    }

                } else {
                  //        System.out.println("!!! Bug in source of selectionModel propertyChangeEvent");
                }

                // re-set columnModel listeners
                // and column's selection property listener as well
            } else if (name.compareTo("columnModel") == 0) {

                if (oldValue != null && oldValue instanceof TableColumnModel) {
                    TableColumnModel tcm = (TableColumnModel) oldValue;
                    tcm.removeColumnModelListener(this);
                    tcm.getSelectionModel().removeListSelectionListener(this);
                }
                if (newValue != null && newValue instanceof TableColumnModel) {
                    TableColumnModel tcm = (TableColumnModel) newValue;
                    tcm.addColumnModelListener(this);
                    tcm.getSelectionModel().addListSelectionListener(this);
                }

                // re-se cellEditor listeners
            } else if (name.compareTo("tableCellEditor") == 0) {

                if (oldValue != null && oldValue instanceof TableCellEditor) {
                    ((TableCellEditor) oldValue).removeCellEditorListener(this);
                }
                if (newValue != null && newValue instanceof TableCellEditor) {
                    ((TableCellEditor) newValue).addCellEditorListener(this);
                }
            }
        }


    // Listeners to echo changes to the AccessiblePropertyChange mechanism

        
Describes a change in the accessible table model.

/**
         * Describes a change in the accessible table model.
         */
        protected class AccessibleJTableModelChange
            implements AccessibleTableModelChange {

            
The type 
/** The type */
            protected int type;
            
The first row 
/** The first row */
            protected int firstRow;
            
The last row 
/** The last row */
            protected int lastRow;
            
The first column 
/** The first column */
            protected int firstColumn;
            
The last column 
/** The last column */
            protected int lastColumn;

            
Constructs an AccessibleJTableModelChange. 
Params:
  • type – the type
  • firstRow – the first row
  • lastRow – the last row
  • firstColumn – the first column
  • lastColumn – the last column
/**
             * Constructs an {@code AccessibleJTableModelChange}.
             * @param type the type
             * @param firstRow the first row
             * @param lastRow the last row
             * @param firstColumn the first column
             * @param lastColumn the last column
             */
            protected AccessibleJTableModelChange(int type, int firstRow,
                                                  int lastRow, int firstColumn,
                                                  int lastColumn) {
                this.type = type;
                this.firstRow = firstRow;
                this.lastRow = lastRow;
                this.firstColumn = firstColumn;
                this.lastColumn = lastColumn;
            }

            
Returns the type.

Returns:the type
/**
             * Returns the type.
             * @return the type
             */
            public int getType() {
                return type;
            }

            
Returns the first row.

Returns:the first row
/**
             * Returns the first row.
             * @return the first row
             */
            public int getFirstRow() {
                return firstRow;
            }

            
Returns the last row.

Returns:the last row
/**
             * Returns the last row.
             * @return the last row
             */
            public int getLastRow() {
                return lastRow;
            }

            
Returns the first column.

Returns:the first column
/**
             * Returns the first column.
             * @return the first column
             */
            public int getFirstColumn() {
                return firstColumn;
            }

            
Returns the last column.

Returns:the last column
/**
             * Returns the last column.
             * @return the last column
             */
            public int getLastColumn() {
                return lastColumn;
            }
        }

        
Track changes to the table contents

Params:
  • e – a TableModelEvent describing the event
/**
         * Track changes to the table contents
         *
         * @param e a {@code TableModelEvent} describing the event
         */
        public void tableChanged(TableModelEvent e) {
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);
           if (e != null) {
               int firstColumn = e.getColumn();
               int lastColumn = e.getColumn();
               if (firstColumn == TableModelEvent.ALL_COLUMNS) {
                   firstColumn = 0;
                   lastColumn = getColumnCount() - 1;
               }

               // Fire a property change event indicating the table model
               // has changed.
               AccessibleJTableModelChange change =
                   new AccessibleJTableModelChange(e.getType(),
                                                   e.getFirstRow(),
                                                   e.getLastRow(),
                                                   firstColumn,
                                                   lastColumn);
               firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_MODEL_CHANGED,
                                  null, change);
            }
        }

        
Track changes to the table contents (row insertions)

Params:
  • e – a TableModelEvent describing the event
/**
         * Track changes to the table contents (row insertions)
         *
         * @param e a {@code TableModelEvent} describing the event
         */
        public void tableRowsInserted(TableModelEvent e) {
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);

           // Fire a property change event indicating the table model
           // has changed.
           int firstColumn = e.getColumn();
           int lastColumn = e.getColumn();
           if (firstColumn == TableModelEvent.ALL_COLUMNS) {
               firstColumn = 0;
               lastColumn = getColumnCount() - 1;
           }
           AccessibleJTableModelChange change =
               new AccessibleJTableModelChange(e.getType(),
                                               e.getFirstRow(),
                                               e.getLastRow(),
                                               firstColumn,
                                               lastColumn);
           firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_MODEL_CHANGED,
                              null, change);
        }

        
Track changes to the table contents (row deletions)

Params:
  • e – a TableModelEvent describing the event
/**
         * Track changes to the table contents (row deletions)
         *
         * @param e a {@code TableModelEvent} describing the event
         */
        public void tableRowsDeleted(TableModelEvent e) {
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);

           // Fire a property change event indicating the table model
           // has changed.
           int firstColumn = e.getColumn();
           int lastColumn = e.getColumn();
           if (firstColumn == TableModelEvent.ALL_COLUMNS) {
               firstColumn = 0;
               lastColumn = getColumnCount() - 1;
           }
           AccessibleJTableModelChange change =
               new AccessibleJTableModelChange(e.getType(),
                                               e.getFirstRow(),
                                               e.getLastRow(),
                                               firstColumn,
                                               lastColumn);
           firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_MODEL_CHANGED,
                              null, change);
        }

        
Track changes to the table contents (column insertions)

/**
         * Track changes to the table contents (column insertions)
         */
        public void columnAdded(TableColumnModelEvent e) {
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);

           // Fire a property change event indicating the table model
           // has changed.
           int type = AccessibleTableModelChange.INSERT;
           AccessibleJTableModelChange change =
               new AccessibleJTableModelChange(type,
                                               0,
                                               0,
                                               e.getFromIndex(),
                                               e.getToIndex());
           firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_MODEL_CHANGED,
                              null, change);
        }

        
Track changes to the table contents (column deletions)

/**
         * Track changes to the table contents (column deletions)
         */
        public void columnRemoved(TableColumnModelEvent e) {
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);
           // Fire a property change event indicating the table model
           // has changed.
           int type = AccessibleTableModelChange.DELETE;
           AccessibleJTableModelChange change =
               new AccessibleJTableModelChange(type,
                                               0,
                                               0,
                                               e.getFromIndex(),
                                               e.getToIndex());
           firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_MODEL_CHANGED,
                              null, change);
        }

        
Track changes of a column repositioning.

See Also:
  • TableColumnModelListener
/**
         * Track changes of a column repositioning.
         *
         * @see TableColumnModelListener
         */
        public void columnMoved(TableColumnModelEvent e) {
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);

           // Fire property change events indicating the table model
           // has changed.
           int type = AccessibleTableModelChange.DELETE;
           AccessibleJTableModelChange change =
               new AccessibleJTableModelChange(type,
                                               0,
                                               0,
                                               e.getFromIndex(),
                                               e.getFromIndex());
           firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_MODEL_CHANGED,
                              null, change);

           int type2 = AccessibleTableModelChange.INSERT;
           AccessibleJTableModelChange change2 =
               new AccessibleJTableModelChange(type2,
                                               0,
                                               0,
                                               e.getToIndex(),
                                               e.getToIndex());
           firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_MODEL_CHANGED,
                              null, change2);
        }

        
Track changes of a column moving due to margin changes.

See Also:
  • TableColumnModelListener
/**
         * Track changes of a column moving due to margin changes.
         *
         * @see TableColumnModelListener
         */
        public void columnMarginChanged(ChangeEvent e) {
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);
        }

        
Track that the selection model of the TableColumnModel changed.

See Also:
  • TableColumnModelListener
/**
         * Track that the selection model of the TableColumnModel changed.
         *
         * @see TableColumnModelListener
         */
        public void columnSelectionChanged(ListSelectionEvent e) {
            // we should now re-place our TableColumn listener
        }

        
Track changes to a cell's contents.
Invoked when editing is finished. The changes are saved, the
editor object is discarded, and the cell is rendered once again.

See Also:
  • CellEditorListener
/**
         * Track changes to a cell's contents.
         *
         * Invoked when editing is finished. The changes are saved, the
         * editor object is discarded, and the cell is rendered once again.
         *
         * @see CellEditorListener
         */
        public void editingStopped(ChangeEvent e) {
           // it'd be great if we could figure out which cell, and pass that
           // somehow as a parameter
           firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
                              null, null);
        }

        
Invoked when editing is canceled. The editor object is discarded
and the cell is rendered once again.

See Also:
  • CellEditorListener
/**
         * Invoked when editing is canceled. The editor object is discarded
         * and the cell is rendered once again.
         *
         * @see CellEditorListener
         */
        public void editingCanceled(ChangeEvent e) {
            // nothing to report, 'cause nothing changed
        }

        
Track changes to table cell selections

/**
         * Track changes to table cell selections
         */
        public void valueChanged(ListSelectionEvent e) {
            firePropertyChange(AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY,
                            Boolean.valueOf(false), Boolean.valueOf(true));

            // Using lead selection index to cover both cases: node selected and node
            // is focused but not selected (Ctrl+up/down)
            int focusedRow = JTable.this.getSelectionModel().getLeadSelectionIndex();
            int focusedCol = JTable.this.getColumnModel().getSelectionModel().
                                                    getLeadSelectionIndex();

            if (focusedRow != previousFocusedRow ||
                focusedCol != previousFocusedCol) {
                Accessible oldA = getAccessibleAt(previousFocusedRow, previousFocusedCol);
                Accessible newA = getAccessibleAt(focusedRow, focusedCol);
                firePropertyChange(AccessibleContext.ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY,
                                    oldA, newA);
                previousFocusedRow = focusedRow;
                previousFocusedCol = focusedCol;
            }
        }




    // AccessibleContext support

        
Get the AccessibleSelection associated with this object.  In the
implementation of the Java Accessibility API for this class,
return this object, which is responsible for implementing the
AccessibleSelection interface on behalf of itself.

Returns:this object
/**
         * Get the AccessibleSelection associated with this object.  In the
         * implementation of the Java Accessibility API for this class,
         * return this object, which is responsible for implementing the
         * AccessibleSelection interface on behalf of itself.
         *
         * @return this object
         */
        public AccessibleSelection getAccessibleSelection() {
            return this;
        }

        
Gets the role of this object.

See Also:
Returns:an instance of AccessibleRole describing the role of the
object
/**
         * Gets the role of this object.
         *
         * @return an instance of AccessibleRole describing the role of the
         * object
         * @see AccessibleRole
         */
        public AccessibleRole getAccessibleRole() {
            return AccessibleRole.TABLE;
        }

        
Returns the Accessible child, if one exists,
contained at the local coordinate Point.

Params:
  • p – the point defining the top-left corner of the
   Accessible, given in the coordinate space
   of the object's parent
Returns:the Accessible, if it exists,
   at the specified location; else null
/**
         * Returns the <code>Accessible</code> child, if one exists,
         * contained at the local coordinate <code>Point</code>.
         *
         * @param p the point defining the top-left corner of the
         *    <code>Accessible</code>, given in the coordinate space
         *    of the object's parent
         * @return the <code>Accessible</code>, if it exists,
         *    at the specified location; else <code>null</code>
         */
        public Accessible getAccessibleAt(Point p) {
            int column = columnAtPoint(p);
            int row = rowAtPoint(p);

            if ((column != -1) && (row != -1)) {
                if (row == getEditingRow() && column == getEditingColumn()) {
                    Component editor = getEditorComponent();
                    if (editor instanceof Accessible) {
                        return (Accessible) editor;
                    }
                }
                return new AccessibleJTableCell(JTable.this, row, column,
                      getAccessibleIndexAt(row, column));
            }
            return null;
        }

        
Returns the number of accessible children in the object.  If all
of the children of this object implement Accessible,
then this method should return the number of children of this object.

Returns:the number of accessible children in the object
/**
         * Returns the number of accessible children in the object.  If all
         * of the children of this object implement <code>Accessible</code>,
         * then this method should return the number of children of this object.
         *
         * @return the number of accessible children in the object
         */
        public int getAccessibleChildrenCount() {
            return (JTable.this.getColumnCount() * JTable.this.getRowCount());
        }

        
Returns the nth Accessible child of the object.

Params:
  • i – zero-based index of child
Returns:the nth Accessible child of the object
/**
         * Returns the nth <code>Accessible</code> child of the object.
         *
         * @param i zero-based index of child
         * @return the nth Accessible child of the object
         */
        public Accessible getAccessibleChild(int i) {
            if (i < 0 || i >= getAccessibleChildrenCount()) {
                return null;
            } else {
                // children increase across, and then down, for tables
                // (arbitrary decision)
                int column = getAccessibleColumnAtIndex(i);
                int row = getAccessibleRowAtIndex(i);

                if (row == getEditingRow() && column == getEditingColumn()) {
                    Component editor = getEditorComponent();
                    if (editor instanceof Accessible) {
                        return (Accessible) editor;
                    }
                }
                return new AccessibleJTableCell(JTable.this, row, column,
                      getAccessibleIndexAt(row, column));
            }
        }

    // AccessibleSelection support

        
Returns the number of Accessible children
currently selected.
If no children are selected, the return value will be 0.

Returns:the number of items currently selected
/**
         * Returns the number of <code>Accessible</code> children
         * currently selected.
         * If no children are selected, the return value will be 0.
         *
         * @return the number of items currently selected
         */
        public int getAccessibleSelectionCount() {
            int rowsSel = JTable.this.getSelectedRowCount();
            int colsSel = JTable.this.getSelectedColumnCount();

            if (JTable.this.cellSelectionEnabled) { // a contiguous block
                return rowsSel * colsSel;

            } else {
                // a column swath and a row swath, with a shared block
                if (JTable.this.getRowSelectionAllowed() &&
                    JTable.this.getColumnSelectionAllowed()) {
                    return rowsSel * JTable.this.getColumnCount() +
                           colsSel * JTable.this.getRowCount() -
                           rowsSel * colsSel;

                // just one or more rows in selection
                } else if (JTable.this.getRowSelectionAllowed()) {
                    return rowsSel * JTable.this.getColumnCount();

                // just one or more rows in selection
                } else if (JTable.this.getColumnSelectionAllowed()) {
                    return colsSel * JTable.this.getRowCount();

                } else {
                    return 0;    // JTable doesn't allow selections
                }
            }
        }

        
Returns an Accessible representing the
specified selected child in the object.  If there
isn't a selection, or there are fewer children selected
than the integer passed in, the return
value will be null.

Note that the index represents the i-th selected child, which
is different from the i-th child.

Params:
  • i – the zero-based index of selected children
See Also:
Returns:the i-th selected child
/**
         * Returns an <code>Accessible</code> representing the
         * specified selected child in the object.  If there
         * isn't a selection, or there are fewer children selected
         * than the integer passed in, the return
         * value will be <code>null</code>.
         * <p>Note that the index represents the i-th selected child, which
         * is different from the i-th child.
         *
         * @param i the zero-based index of selected children
         * @return the i-th selected child
         * @see #getAccessibleSelectionCount
         */
        public Accessible getAccessibleSelection(int i) {
            if (i < 0 || i > getAccessibleSelectionCount()) {
                return null;
            }

            int rowsSel = JTable.this.getSelectedRowCount();
            int colsSel = JTable.this.getSelectedColumnCount();
            int rowIndicies[] = getSelectedRows();
            int colIndicies[] = getSelectedColumns();
            int ttlCols = JTable.this.getColumnCount();
            int ttlRows = JTable.this.getRowCount();
            int r;
            int c;

            if (JTable.this.cellSelectionEnabled) { // a contiguous block
                r = rowIndicies[i / colsSel];
                c = colIndicies[i % colsSel];
                return getAccessibleChild((r * ttlCols) + c);
            } else {

                // a column swath and a row swath, with a shared block
                if (JTable.this.getRowSelectionAllowed() &&
                    JTable.this.getColumnSelectionAllowed()) {

                    // Situation:
                    //   We have a table, like the 6x3 table below,
                    //   wherein three colums and one row selected
                    //   (selected cells marked with "*", unselected "0"):
                    //
                    //            0 * 0 * * 0
                    //            * * * * * *
                    //            0 * 0 * * 0
                    //

                    // State machine below walks through the array of
                    // selected rows in two states: in a selected row,
                    // and not in one; continuing until we are in a row
                    // in which the ith selection exists.  Then we return
                    // the appropriate cell.  In the state machine, we
                    // always do rows above the "current" selected row first,
                    // then the cells in the selected row.  If we're done
                    // with the state machine before finding the requested
                    // selected child, we handle the rows below the last
                    // selected row at the end.
                    //
                    int curIndex = i;
                    final int IN_ROW = 0;
                    final int NOT_IN_ROW = 1;
                    int state = (rowIndicies[0] == 0 ? IN_ROW : NOT_IN_ROW);
                    int j = 0;
                    int prevRow = -1;
                    while (j < rowIndicies.length) {
                        switch (state) {

                        case IN_ROW:   // on individual row full of selections
                            if (curIndex < ttlCols) { // it's here!
                                c = curIndex % ttlCols;
                                r = rowIndicies[j];
                                return getAccessibleChild((r * ttlCols) + c);
                            } else {                               // not here
                                curIndex -= ttlCols;
                            }
                            // is the next row in table selected or not?
                            if (j + 1 == rowIndicies.length ||
                                rowIndicies[j] != rowIndicies[j+1] - 1) {
                                state = NOT_IN_ROW;
                                prevRow = rowIndicies[j];
                            }
                            j++;  // we didn't return earlier, so go to next row
                            break;

                        case NOT_IN_ROW:  // sparse bunch of rows of selections
                            if (curIndex <
                                (colsSel * (rowIndicies[j] -
                                (prevRow == -1 ? 0 : (prevRow + 1))))) {

                                // it's here!
                                c = colIndicies[curIndex % colsSel];
                                r = (j > 0 ? rowIndicies[j-1] + 1 : 0)
                                    + curIndex / colsSel;
                                return getAccessibleChild((r * ttlCols) + c);
                            } else {                               // not here
                                curIndex -= colsSel * (rowIndicies[j] -
                                (prevRow == -1 ? 0 : (prevRow + 1)));
                            }
                            state = IN_ROW;
                            break;
                        }
                    }
                    // we got here, so we didn't find it yet; find it in
                    // the last sparse bunch of rows
                    if (curIndex <
                        (colsSel * (ttlRows -
                        (prevRow == -1 ? 0 : (prevRow + 1))))) { // it's here!
                        c = colIndicies[curIndex % colsSel];
                        r = rowIndicies[j-1] + curIndex / colsSel + 1;
                        return getAccessibleChild((r * ttlCols) + c);
                    } else {                               // not here
                        // we shouldn't get to this spot in the code!
//                      System.out.println("Bug in AccessibleJTable.getAccessibleSelection()");
                    }

                // one or more rows selected
                } else if (JTable.this.getRowSelectionAllowed()) {
                    c = i % ttlCols;
                    r = rowIndicies[i / ttlCols];
                    return getAccessibleChild((r * ttlCols) + c);

                // one or more columns selected
                } else if (JTable.this.getColumnSelectionAllowed()) {
                    c = colIndicies[i % colsSel];
                    r = i / colsSel;
                    return getAccessibleChild((r * ttlCols) + c);
                }
            }
            return null;
        }

        
Determines if the current child of this object is selected.

Params:
  • i – the zero-based index of the child in this
   Accessible object
See Also:
Returns:true if the current child of this object is selected
/**
         * Determines if the current child of this object is selected.
         *
         * @param i the zero-based index of the child in this
         *    <code>Accessible</code> object
         * @return true if the current child of this object is selected
         * @see AccessibleContext#getAccessibleChild
         */
        public boolean isAccessibleChildSelected(int i) {
            int column = getAccessibleColumnAtIndex(i);
            int row = getAccessibleRowAtIndex(i);
            return JTable.this.isCellSelected(row, column);
        }

        
Adds the specified Accessible child of the
object to the object's selection.  If the object supports
multiple selections, the specified child is added to
any existing selection, otherwise
it replaces any existing selection in the object.  If the
specified child is already selected, this method has no effect.


This method only works on JTables which have
individual cell selection enabled.

Params:
  • i – the zero-based index of the child
See Also:
/**
         * Adds the specified <code>Accessible</code> child of the
         * object to the object's selection.  If the object supports
         * multiple selections, the specified child is added to
         * any existing selection, otherwise
         * it replaces any existing selection in the object.  If the
         * specified child is already selected, this method has no effect.
         * <p>
         * This method only works on <code>JTable</code>s which have
         * individual cell selection enabled.
         *
         * @param i the zero-based index of the child
         * @see AccessibleContext#getAccessibleChild
         */
        public void addAccessibleSelection(int i) {
            // TIGER - 4495286
            int column = getAccessibleColumnAtIndex(i);
            int row = getAccessibleRowAtIndex(i);
            JTable.this.changeSelection(row, column, true, false);
        }

        
Removes the specified child of the object from the object's
selection.  If the specified item isn't currently selected, this
method has no effect.


This method only works on JTables which have
individual cell selection enabled.

Params:
  • i – the zero-based index of the child
See Also:
/**
         * Removes the specified child of the object from the object's
         * selection.  If the specified item isn't currently selected, this
         * method has no effect.
         * <p>
         * This method only works on <code>JTables</code> which have
         * individual cell selection enabled.
         *
         * @param i the zero-based index of the child
         * @see AccessibleContext#getAccessibleChild
         */
        public void removeAccessibleSelection(int i) {
            if (JTable.this.cellSelectionEnabled) {
                int column = getAccessibleColumnAtIndex(i);
                int row = getAccessibleRowAtIndex(i);
                JTable.this.removeRowSelectionInterval(row, row);
                JTable.this.removeColumnSelectionInterval(column, column);
            }
        }

        
Clears the selection in the object, so that no children in the
object are selected.

/**
         * Clears the selection in the object, so that no children in the
         * object are selected.
         */
        public void clearAccessibleSelection() {
            JTable.this.clearSelection();
        }

        
Causes every child of the object to be selected, but only
if the JTable supports multiple selections,
and if individual cell selection is enabled.

/**
         * Causes every child of the object to be selected, but only
         * if the <code>JTable</code> supports multiple selections,
         * and if individual cell selection is enabled.
         */
        public void selectAllAccessibleSelection() {
            if (JTable.this.cellSelectionEnabled) {
                JTable.this.selectAll();
            }
        }

        // begin AccessibleExtendedTable implementation -------------

        
Returns the row number of an index in the table.

Params:
  • index – the zero-based index in the table
Returns:the zero-based row of the table if one exists;
otherwise -1.
Since:1.4
/**
         * Returns the row number of an index in the table.
         *
         * @param index the zero-based index in the table
         * @return the zero-based row of the table if one exists;
         * otherwise -1.
         * @since 1.4
         */
        public int getAccessibleRow(int index) {
            return getAccessibleRowAtIndex(index);
        }

        
Returns the column number of an index in the table.

Params:
  • index – the zero-based index in the table
Returns:the zero-based column of the table if one exists;
otherwise -1.
Since:1.4
/**
         * Returns the column number of an index in the table.
         *
         * @param index the zero-based index in the table
         * @return the zero-based column of the table if one exists;
         * otherwise -1.
         * @since 1.4
         */
        public int getAccessibleColumn(int index) {
            return getAccessibleColumnAtIndex(index);
        }

        
Returns the index at a row and column in the table.

Params:
  • r – zero-based row of the table
  • c – zero-based column of the table
Returns:the zero-based index in the table if one exists;
otherwise -1.
Since:1.4
/**
         * Returns the index at a row and column in the table.
         *
         * @param r zero-based row of the table
         * @param c zero-based column of the table
         * @return the zero-based index in the table if one exists;
         * otherwise -1.
         * @since 1.4
         */
        public int getAccessibleIndex(int r, int c) {
            return getAccessibleIndexAt(r, c);
        }

        // end of AccessibleExtendedTable implementation ------------

        // start of AccessibleTable implementation ------------------

        private Accessible caption;
        private Accessible summary;
        private Accessible [] rowDescription;
        private Accessible [] columnDescription;

        
Gets the AccessibleTable associated with this
object.  In the implementation of the Java Accessibility
API for this class, return this object, which is responsible
for implementing the AccessibleTables interface
on behalf of itself.

Returns:this object
Since:1.3
/**
         * Gets the <code>AccessibleTable</code> associated with this
         * object.  In the implementation of the Java Accessibility
         * API for this class, return this object, which is responsible
         * for implementing the <code>AccessibleTables</code> interface
         * on behalf of itself.
         *
         * @return this object
         * @since 1.3
         */
        public AccessibleTable getAccessibleTable() {
            return this;
        }

        
Returns the caption for the table.

Returns:the caption for the table
Since:1.3
/**
         * Returns the caption for the table.
         *
         * @return the caption for the table
         * @since 1.3
         */
        public Accessible getAccessibleCaption() {
            return this.caption;
        }

        
Sets the caption for the table.

Params:
  • a – the caption for the table
Since:1.3
/**
         * Sets the caption for the table.
         *
         * @param a the caption for the table
         * @since 1.3
         */
        public void setAccessibleCaption(Accessible a) {
            Accessible oldCaption = caption;
            this.caption = a;
            firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_CAPTION_CHANGED,
                               oldCaption, this.caption);
        }

        
Returns the summary description of the table.

Returns:the summary description of the table
Since:1.3
/**
         * Returns the summary description of the table.
         *
         * @return the summary description of the table
         * @since 1.3
         */
        public Accessible getAccessibleSummary() {
            return this.summary;
        }

        
Sets the summary description of the table.

Params:
  • a – the summary description of the table
Since:1.3
/**
         * Sets the summary description of the table.
         *
         * @param a the summary description of the table
         * @since 1.3
         */
        public void setAccessibleSummary(Accessible a) {
            Accessible oldSummary = summary;
            this.summary = a;
            firePropertyChange(AccessibleContext.ACCESSIBLE_TABLE_SUMMARY_CHANGED,
                               oldSummary, this.summary);
        }

        /*
         * Returns the total number of rows in this table.
         *
         * @return the total number of rows in this table
         */
        public int getAccessibleRowCount() {
            return JTable.this.getRowCount();
        }

        /*
         * Returns the total number of columns in the table.
         *
         * @return the total number of columns in the table
         */
        public int getAccessibleColumnCount() {
            return JTable.this.getColumnCount();
        }

        /*
         * Returns the <code>Accessible</code> at a specified row
         * and column in the table.
         *
         * @param r zero-based row of the table
         * @param c zero-based column of the table
         * @return the <code>Accessible</code> at the specified row and column
         * in the table
         */
        public Accessible getAccessibleAt(int r, int c) {
            return getAccessibleChild((r * getAccessibleColumnCount()) + c);
        }

        
Returns the number of rows occupied by the Accessible
at a specified row and column in the table.

Returns:the number of rows occupied by the Accessible
    at a specified row and column in the table
Since:1.3
/**
         * Returns the number of rows occupied by the <code>Accessible</code>
         * at a specified row and column in the table.
         *
         * @return the number of rows occupied by the <code>Accessible</code>
         *     at a specified row and column in the table
         * @since 1.3
         */
        public int getAccessibleRowExtentAt(int r, int c) {
            return 1;
        }

        
Returns the number of columns occupied by the
Accessible at a given (row, column).

Returns:the number of columns occupied by the Accessible
    at a specified row and column in the table
Since:1.3
/**
         * Returns the number of columns occupied by the
         * <code>Accessible</code> at a given (row, column).
         *
         * @return the number of columns occupied by the <code>Accessible</code>
         *     at a specified row and column in the table
         * @since 1.3
         */
        public int getAccessibleColumnExtentAt(int r, int c) {
            return 1;
        }

        
Returns the row headers as an AccessibleTable.

Returns:an AccessibleTable representing the row
headers
Since:1.3
/**
         * Returns the row headers as an <code>AccessibleTable</code>.
         *
         * @return an <code>AccessibleTable</code> representing the row
         * headers
         * @since 1.3
         */
        public AccessibleTable getAccessibleRowHeader() {
            // row headers are not supported
            return null;
        }

        
Sets the row headers as an AccessibleTable.

Params:
  • a – an AccessibleTable representing the row
 headers
Since:1.3
/**
         * Sets the row headers as an <code>AccessibleTable</code>.
         *
         * @param a an <code>AccessibleTable</code> representing the row
         *  headers
         * @since 1.3
         */
        public void setAccessibleRowHeader(AccessibleTable a) {
            // row headers are not supported
        }

        
Returns the column headers as an AccessibleTable.
 @return an AccessibleTable representing the column
         headers, or null if the table header is
         null

Since:1.3
/**
         * Returns the column headers as an <code>AccessibleTable</code>.
         *
         *  @return an <code>AccessibleTable</code> representing the column
         *          headers, or <code>null</code> if the table header is
         *          <code>null</code>
         * @since 1.3
         */
        public AccessibleTable getAccessibleColumnHeader() {
            JTableHeader header = JTable.this.getTableHeader();
            return header == null ? null : new AccessibleTableHeader(header);
        }

        /*
         * Private class representing a table column header
         */
        private class AccessibleTableHeader implements AccessibleTable {
            private JTableHeader header;
            private TableColumnModel headerModel;

            AccessibleTableHeader(JTableHeader header) {
                this.header = header;
                this.headerModel = header.getColumnModel();
            }

            
Returns the caption for the table.

Returns:the caption for the table
/**
             * Returns the caption for the table.
             *
             * @return the caption for the table
             */
            public Accessible getAccessibleCaption() { return null; }


            
Sets the caption for the table.

Params:
  • a – the caption for the table
/**
             * Sets the caption for the table.
             *
             * @param a the caption for the table
             */
            public void setAccessibleCaption(Accessible a) {}

            
Returns the summary description of the table.

Returns:the summary description of the table
/**
             * Returns the summary description of the table.
             *
             * @return the summary description of the table
             */
            public Accessible getAccessibleSummary() { return null; }

            
Sets the summary description of the table

Params:
  • a – the summary description of the table
/**
             * Sets the summary description of the table
             *
             * @param a the summary description of the table
             */
            public void setAccessibleSummary(Accessible a) {}

            
Returns the number of rows in the table.

Returns:the number of rows in the table
/**
             * Returns the number of rows in the table.
             *
             * @return the number of rows in the table
             */
            public int getAccessibleRowCount() { return 1; }

            
Returns the number of columns in the table.

Returns:the number of columns in the table
/**
             * Returns the number of columns in the table.
             *
             * @return the number of columns in the table
             */
            public int getAccessibleColumnCount() {
                return headerModel.getColumnCount();
            }

            
Returns the Accessible at a specified row and column
in the table.

Params:
  • row – zero-based row of the table
  • column – zero-based column of the table
Returns:the Accessible at the specified row and column
/**
             * Returns the Accessible at a specified row and column
             * in the table.
             *
             * @param row zero-based row of the table
             * @param column zero-based column of the table
             * @return the Accessible at the specified row and column
             */
            public Accessible getAccessibleAt(int row, int column) {


                // TIGER - 4715503
                TableColumn aColumn = headerModel.getColumn(column);
                TableCellRenderer renderer = aColumn.getHeaderRenderer();
                if (renderer == null) {
                    renderer = header.getDefaultRenderer();
                }
                Component component = renderer.getTableCellRendererComponent(
                                  header.getTable(),
                                  aColumn.getHeaderValue(), false, false,
                                  -1, column);

                return new AccessibleJTableHeaderCell(row, column,
                                                      JTable.this.getTableHeader(),
                                                      component);
            }

            
Returns the number of rows occupied by the Accessible at
a specified row and column in the table.

Returns:the number of rows occupied by the Accessible at a
given specified (row, column)
/**
             * Returns the number of rows occupied by the Accessible at
             * a specified row and column in the table.
             *
             * @return the number of rows occupied by the Accessible at a
             * given specified (row, column)
             */
            public int getAccessibleRowExtentAt(int r, int c) { return 1; }

            
Returns the number of columns occupied by the Accessible at
a specified row and column in the table.

Returns:the number of columns occupied by the Accessible at a
given specified row and column
/**
             * Returns the number of columns occupied by the Accessible at
             * a specified row and column in the table.
             *
             * @return the number of columns occupied by the Accessible at a
             * given specified row and column
             */
            public int getAccessibleColumnExtentAt(int r, int c) { return 1; }

            
Returns the row headers as an AccessibleTable.

Returns:an AccessibleTable representing the row
headers
/**
             * Returns the row headers as an AccessibleTable.
             *
             * @return an AccessibleTable representing the row
             * headers
             */
            public AccessibleTable getAccessibleRowHeader() { return null; }

            
Sets the row headers.

Params:
  • table – an AccessibleTable representing the
row headers
/**
             * Sets the row headers.
             *
             * @param table an AccessibleTable representing the
             * row headers
             */
            public void setAccessibleRowHeader(AccessibleTable table) {}

            
Returns the column headers as an AccessibleTable.

Returns:an AccessibleTable representing the column
headers
/**
             * Returns the column headers as an AccessibleTable.
             *
             * @return an AccessibleTable representing the column
             * headers
             */
            public AccessibleTable getAccessibleColumnHeader() { return null; }

            
Sets the column headers.

Params:
  • table – an AccessibleTable representing the
column headers
Since:1.3
/**
             * Sets the column headers.
             *
             * @param table an AccessibleTable representing the
             * column headers
             * @since 1.3
             */
            public void setAccessibleColumnHeader(AccessibleTable table) {}

            
Returns the description of the specified row in the table.

Params:
  • r – zero-based row of the table
Returns:the description of the row
Since:1.3
/**
             * Returns the description of the specified row in the table.
             *
             * @param r zero-based row of the table
             * @return the description of the row
             * @since 1.3
             */
            public Accessible getAccessibleRowDescription(int r) { return null; }

            
Sets the description text of the specified row of the table.

Params:
  • r – zero-based row of the table
  • a – the description of the row
Since:1.3
/**
             * Sets the description text of the specified row of the table.
             *
             * @param r zero-based row of the table
             * @param a the description of the row
             * @since 1.3
             */
            public void setAccessibleRowDescription(int r, Accessible a) {}

            
Returns the description text of the specified column in the table.

Params:
  • c – zero-based column of the table
Returns:the text description of the column
Since:1.3
/**
             * Returns the description text of the specified column in the table.
             *
             * @param c zero-based column of the table
             * @return the text description of the column
             * @since 1.3
             */
            public Accessible getAccessibleColumnDescription(int c) { return null; }

            
Sets the description text of the specified column in the table.

Params:
  • c – zero-based column of the table
  • a – the text description of the column
Since:1.3
/**
             * Sets the description text of the specified column in the table.
             *
             * @param c zero-based column of the table
             * @param a the text description of the column
             * @since 1.3
             */
            public void setAccessibleColumnDescription(int c, Accessible a) {}

            
Returns a boolean value indicating whether the accessible at
a specified row and column is selected.

Params:
  • r – zero-based row of the table
  • c – zero-based column of the table
Returns:the boolean value true if the accessible at the
row and column is selected. Otherwise, the boolean value
false
Since:1.3
/**
             * Returns a boolean value indicating whether the accessible at
             * a specified row and column is selected.
             *
             * @param r zero-based row of the table
             * @param c zero-based column of the table
             * @return the boolean value true if the accessible at the
             * row and column is selected. Otherwise, the boolean value
             * false
             * @since 1.3
             */
            public boolean isAccessibleSelected(int r, int c) { return false; }

            
Returns a boolean value indicating whether the specified row
is selected.

Params:
  • r – zero-based row of the table
Returns:the boolean value true if the specified row is selected.
Otherwise, false.
Since:1.3
/**
             * Returns a boolean value indicating whether the specified row
             * is selected.
             *
             * @param r zero-based row of the table
             * @return the boolean value true if the specified row is selected.
             * Otherwise, false.
             * @since 1.3
             */
            public boolean isAccessibleRowSelected(int r) { return false; }

            
Returns a boolean value indicating whether the specified column
is selected.

Params:
  • c – zero-based column of the table
Returns:the boolean value true if the specified column is selected.
Otherwise, false.
Since:1.3
/**
             * Returns a boolean value indicating whether the specified column
             * is selected.
             *
             * @param c zero-based column of the table
             * @return the boolean value true if the specified column is selected.
             * Otherwise, false.
             * @since 1.3
             */
            public boolean isAccessibleColumnSelected(int c) { return false; }

            
Returns the selected rows in a table.

Returns:an array of selected rows where each element is a
zero-based row of the table
Since:1.3
/**
             * Returns the selected rows in a table.
             *
             * @return an array of selected rows where each element is a
             * zero-based row of the table
             * @since 1.3
             */
            public int [] getSelectedAccessibleRows() { return new int[0]; }

            
Returns the selected columns in a table.

Returns:an array of selected columns where each element is a
zero-based column of the table
Since:1.3
/**
             * Returns the selected columns in a table.
             *
             * @return an array of selected columns where each element is a
             * zero-based column of the table
             * @since 1.3
             */
            public int [] getSelectedAccessibleColumns() { return new int[0]; }
        }


        
Sets the column headers as an AccessibleTable.

Params:
  • a – an AccessibleTable representing the
column headers
Since:1.3
/**
         * Sets the column headers as an <code>AccessibleTable</code>.
         *
         * @param a an <code>AccessibleTable</code> representing the
         * column headers
         * @since 1.3
         */
        public void setAccessibleColumnHeader(AccessibleTable a) {
            // XXX not implemented
        }

        
Returns the description of the specified row in the table.

Params:
  • r – zero-based row of the table
Returns:the description of the row
Since:1.3
/**
         * Returns the description of the specified row in the table.
         *
         * @param r zero-based row of the table
         * @return the description of the row
         * @since 1.3
         */
        public Accessible getAccessibleRowDescription(int r) {
            if (r < 0 || r >= getAccessibleRowCount()) {
                throw new IllegalArgumentException(Integer.toString(r));
            }
            if (rowDescription == null) {
                return null;
            } else {
                return rowDescription[r];
            }
        }

        
Sets the description text of the specified row of the table.

Params:
  • r – zero-based row of the table
  • a – the description of the row
Since:1.3
/**
         * Sets the description text of the specified row of the table.
         *
         * @param r zero-based row of the table
         * @param a the description of the row
         * @since 1.3
         */
        public void setAccessibleRowDescription(int r, Accessible a) {
            if (r < 0 || r >= getAccessibleRowCount()) {
                throw new IllegalArgumentException(Integer.toString(r));
            }
            if (rowDescription == null) {
                int numRows = getAccessibleRowCount();
                rowDescription = new Accessible[numRows];
            }
            rowDescription[r] = a;
        }

        
Returns the description of the specified column in the table.

Params:
  • c – zero-based column of the table
Returns:the description of the column
Since:1.3
/**
         * Returns the description of the specified column in the table.
         *
         * @param c zero-based column of the table
         * @return the description of the column
         * @since 1.3
         */
        public Accessible getAccessibleColumnDescription(int c) {
            if (c < 0 || c >= getAccessibleColumnCount()) {
                throw new IllegalArgumentException(Integer.toString(c));
            }
            if (columnDescription == null) {
                return null;
            } else {
                return columnDescription[c];
            }
        }

        
Sets the description text of the specified column of the table.

Params:
  • c – zero-based column of the table
  • a – the description of the column
Since:1.3
/**
         * Sets the description text of the specified column of the table.
         *
         * @param c zero-based column of the table
         * @param a the description of the column
         * @since 1.3
         */
        public void setAccessibleColumnDescription(int c, Accessible a) {
            if (c < 0 || c >= getAccessibleColumnCount()) {
                throw new IllegalArgumentException(Integer.toString(c));
            }
            if (columnDescription == null) {
                int numColumns = getAccessibleColumnCount();
                columnDescription = new Accessible[numColumns];
            }
            columnDescription[c] = a;
        }

        
Returns a boolean value indicating whether the accessible at a
given (row, column) is selected.

Params:
  • r – zero-based row of the table
  • c – zero-based column of the table
Returns:the boolean value true if the accessible at (row, column)
    is selected; otherwise, the boolean value false
Since:1.3
/**
         * Returns a boolean value indicating whether the accessible at a
         * given (row, column) is selected.
         *
         * @param r zero-based row of the table
         * @param c zero-based column of the table
         * @return the boolean value true if the accessible at (row, column)
         *     is selected; otherwise, the boolean value false
         * @since 1.3
         */
        public boolean isAccessibleSelected(int r, int c) {
            return JTable.this.isCellSelected(r, c);
        }

        
Returns a boolean value indicating whether the specified row
is selected.

Params:
  • r – zero-based row of the table
Returns:the boolean value true if the specified row is selected;
    otherwise, false
Since:1.3
/**
         * Returns a boolean value indicating whether the specified row
         * is selected.
         *
         * @param r zero-based row of the table
         * @return the boolean value true if the specified row is selected;
         *     otherwise, false
         * @since 1.3
         */
        public boolean isAccessibleRowSelected(int r) {
            return JTable.this.isRowSelected(r);
        }

        
Returns a boolean value indicating whether the specified column
is selected.

Params:
  • c – zero-based column of the table
Returns:the boolean value true if the specified column is selected;
    otherwise, false
Since:1.3
/**
         * Returns a boolean value indicating whether the specified column
         * is selected.
         *
         * @param c zero-based column of the table
         * @return the boolean value true if the specified column is selected;
         *     otherwise, false
         * @since 1.3
         */
        public boolean isAccessibleColumnSelected(int c) {
            return JTable.this.isColumnSelected(c);
        }

        
Returns the selected rows in a table.

Returns:an array of selected rows where each element is a
    zero-based row of the table
Since:1.3
/**
         * Returns the selected rows in a table.
         *
         * @return an array of selected rows where each element is a
         *     zero-based row of the table
         * @since 1.3
         */
        public int [] getSelectedAccessibleRows() {
            return JTable.this.getSelectedRows();
        }

        
Returns the selected columns in a table.

Returns:an array of selected columns where each element is a
    zero-based column of the table
Since:1.3
/**
         * Returns the selected columns in a table.
         *
         * @return an array of selected columns where each element is a
         *     zero-based column of the table
         * @since 1.3
         */
        public int [] getSelectedAccessibleColumns() {
            return JTable.this.getSelectedColumns();
        }

        
Returns the row at a given index into the table.

Params:
  • i – zero-based index into the table
Returns:the row at a given index
Since:1.3
/**
         * Returns the row at a given index into the table.
         *
         * @param i zero-based index into the table
         * @return the row at a given index
         * @since 1.3
         */
        public int getAccessibleRowAtIndex(int i) {
            int columnCount = getAccessibleColumnCount();
            if (columnCount == 0) {
                return -1;
            } else {
                return (i / columnCount);
            }
        }

        
Returns the column at a given index into the table.

Params:
  • i – zero-based index into the table
Returns:the column at a given index
Since:1.3
/**
         * Returns the column at a given index into the table.
         *
         * @param i zero-based index into the table
         * @return the column at a given index
         * @since 1.3
         */
        public int getAccessibleColumnAtIndex(int i) {
            int columnCount = getAccessibleColumnCount();
            if (columnCount == 0) {
                return -1;
            } else {
                return (i % columnCount);
            }
        }

        
Returns the index at a given (row, column) in the table.

Params:
  • r – zero-based row of the table
  • c – zero-based column of the table
Returns:the index into the table
Since:1.3
/**
         * Returns the index at a given (row, column) in the table.
         *
         * @param r zero-based row of the table
         * @param c zero-based column of the table
         * @return the index into the table
         * @since 1.3
         */
        public int getAccessibleIndexAt(int r, int c) {
            return ((r * getAccessibleColumnCount()) + c);
        }

        // end of AccessibleTable implementation --------------------

        
The class provides an implementation of the Java Accessibility
API appropriate to table cells.

/**
         * The class provides an implementation of the Java Accessibility
         * API appropriate to table cells.
         */
        protected class AccessibleJTableCell extends AccessibleContext
            implements Accessible, AccessibleComponent {

            private JTable parent;
            private int row;
            private int column;
            private int index;

            
 Constructs an AccessibleJTableHeaderEntry.

Params:
  • t – a JTable
  • r – an int specifying a row
  • c – an int specifying a column
  • i – an int specifying the index to this cell
Since:1.4
/**
             *  Constructs an <code>AccessibleJTableHeaderEntry</code>.
             *
             * @param t a {@code JTable}
             * @param r an {@code int} specifying a row
             * @param c an {@code int} specifying a column
             * @param i an {@code int} specifying the index to this cell
             * @since 1.4
             */
            public AccessibleJTableCell(JTable t, int r, int c, int i) {
                parent = t;
                row = r;
                column = c;
                index = i;
                this.setAccessibleParent(parent);
            }

            
Gets the AccessibleContext associated with this
component. In the implementation of the Java Accessibility
API for this class, return this object, which is its own
AccessibleContext.

Returns:this object
/**
             * Gets the <code>AccessibleContext</code> associated with this
             * component. In the implementation of the Java Accessibility
             * API for this class, return this object, which is its own
             * <code>AccessibleContext</code>.
             *
             * @return this object
             */
            public AccessibleContext getAccessibleContext() {
                return this;
            }

            
Gets the AccessibleContext for the table cell renderer.

Returns:the AccessibleContext for the table
cell renderer if one exists;
otherwise, returns null.
Since:1.6
/**
             * Gets the AccessibleContext for the table cell renderer.
             *
             * @return the <code>AccessibleContext</code> for the table
             * cell renderer if one exists;
             * otherwise, returns <code>null</code>.
             * @since 1.6
             */
            protected AccessibleContext getCurrentAccessibleContext() {
                TableColumn aColumn = getColumnModel().getColumn(column);
                TableCellRenderer renderer = aColumn.getCellRenderer();
                if (renderer == null) {
                    Class<?> columnClass = getColumnClass(column);
                    renderer = getDefaultRenderer(columnClass);
                }
                Component component = renderer.getTableCellRendererComponent(
                                  JTable.this, getValueAt(row, column),
                                  false, false, row, column);
                if (component instanceof Accessible) {
                    return component.getAccessibleContext();
                } else {
                    return null;
                }
            }

            
Gets the table cell renderer component.

Returns:the table cell renderer component if one exists;
otherwise, returns null.
Since:1.6
/**
             * Gets the table cell renderer component.
             *
             * @return the table cell renderer component if one exists;
             * otherwise, returns <code>null</code>.
             * @since 1.6
             */
            protected Component getCurrentComponent() {
                TableColumn aColumn = getColumnModel().getColumn(column);
                TableCellRenderer renderer = aColumn.getCellRenderer();
                if (renderer == null) {
                    Class<?> columnClass = getColumnClass(column);
                    renderer = getDefaultRenderer(columnClass);
                }
                return renderer.getTableCellRendererComponent(
                                  JTable.this, null, false, false,
                                  row, column);
            }

        // AccessibleContext methods

            
Gets the accessible name of this object.

Returns:the localized name of the object; null
    if this object does not have a name
/**
             * Gets the accessible name of this object.
             *
             * @return the localized name of the object; <code>null</code>
             *     if this object does not have a name
             */
            public String getAccessibleName() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    String name = ac.getAccessibleName();
                    if ((name != null) && (name != "")) {
                        // return the cell renderer's AccessibleName
                        return name;
                    }
                }
                if ((accessibleName != null) && (accessibleName != "")) {
                    return accessibleName;
                } else {
                    // fall back to the client property
                    return (String)getClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY);
                }
            }

            
Sets the localized accessible name of this object.

Params:
  • s – the new localized name of the object
/**
             * Sets the localized accessible name of this object.
             *
             * @param s the new localized name of the object
             */
            public void setAccessibleName(String s) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.setAccessibleName(s);
                } else {
                    super.setAccessibleName(s);
                }
            }

            //
            // *** should check toolTip text for desc. (needs MouseEvent)
            //
            
Gets the accessible description of this object.

Returns:the localized description of the object;
    null if this object does not have
    a description
/**
             * Gets the accessible description of this object.
             *
             * @return the localized description of the object;
             *     <code>null</code> if this object does not have
             *     a description
             */
            public String getAccessibleDescription() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getAccessibleDescription();
                } else {
                    return super.getAccessibleDescription();
                }
            }

            
Sets the accessible description of this object.

Params:
  • s – the new localized description of the object
/**
             * Sets the accessible description of this object.
             *
             * @param s the new localized description of the object
             */
            public void setAccessibleDescription(String s) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.setAccessibleDescription(s);
                } else {
                    super.setAccessibleDescription(s);
                }
            }

            
Gets the role of this object.

See Also:
Returns:an instance of AccessibleRole
     describing the role of the object
/**
             * Gets the role of this object.
             *
             * @return an instance of <code>AccessibleRole</code>
             *      describing the role of the object
             * @see AccessibleRole
             */
            public AccessibleRole getAccessibleRole() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getAccessibleRole();
                } else {
                    return AccessibleRole.UNKNOWN;
                }
            }

            
Gets the state set of this object.

See Also:
Returns:an instance of AccessibleStateSet
    containing the current state set of the object
/**
             * Gets the state set of this object.
             *
             * @return an instance of <code>AccessibleStateSet</code>
             *     containing the current state set of the object
             * @see AccessibleState
             */
            public AccessibleStateSet getAccessibleStateSet() {
                AccessibleContext ac = getCurrentAccessibleContext();
                AccessibleStateSet as = null;

                if (ac != null) {
                    as = ac.getAccessibleStateSet();
                }
                if (as == null) {
                    as = new AccessibleStateSet();
                }
                Rectangle rjt = JTable.this.getVisibleRect();
                Rectangle rcell = JTable.this.getCellRect(row, column, false);
                if (rjt.intersects(rcell)) {
                    as.add(AccessibleState.SHOWING);
                } else {
                    if (as.contains(AccessibleState.SHOWING)) {
                         as.remove(AccessibleState.SHOWING);
                    }
                }
                if (parent.isCellSelected(row, column)) {
                    as.add(AccessibleState.SELECTED);
                } else if (as.contains(AccessibleState.SELECTED)) {
                    as.remove(AccessibleState.SELECTED);
                }
                if ((row == getSelectedRow()) && (column == getSelectedColumn())) {
                    as.add(AccessibleState.ACTIVE);
                }
                as.add(AccessibleState.TRANSIENT);
                return as;
            }

            
Gets the Accessible parent of this object.

Returns:the Accessible parent of this object;
    null if this object does not
    have an Accessible parent
/**
             * Gets the <code>Accessible</code> parent of this object.
             *
             * @return the Accessible parent of this object;
             *     <code>null</code> if this object does not
             *     have an <code>Accessible</code> parent
             */
            public Accessible getAccessibleParent() {
                return parent;
            }

            
Gets the index of this object in its accessible parent.

See Also:
Returns:the index of this object in its parent; -1 if this
    object does not have an accessible parent
/**
             * Gets the index of this object in its accessible parent.
             *
             * @return the index of this object in its parent; -1 if this
             *     object does not have an accessible parent
             * @see #getAccessibleParent
             */
            public int getAccessibleIndexInParent() {
                return index;
            }

            
Returns the number of accessible children in the object.

Returns:the number of accessible children in the object
/**
             * Returns the number of accessible children in the object.
             *
             * @return the number of accessible children in the object
             */
            public int getAccessibleChildrenCount() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getAccessibleChildrenCount();
                } else {
                    return 0;
                }
            }

            
Returns the specified Accessible child of the
object.

Params:
  • i – zero-based index of child
Returns:the Accessible child of the object
/**
             * Returns the specified <code>Accessible</code> child of the
             * object.
             *
             * @param i zero-based index of child
             * @return the <code>Accessible</code> child of the object
             */
            public Accessible getAccessibleChild(int i) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    Accessible accessibleChild = ac.getAccessibleChild(i);
                    ac.setAccessibleParent(this);
                    return accessibleChild;
                } else {
                    return null;
                }
            }

            
Gets the locale of the component. If the component
does not have a locale, then the locale of its parent
is returned.

Throws:
  • IllegalComponentStateException – if the
   Component does not have its own locale
   and has not yet been added to a containment hierarchy
   such that the locale can be determined from the
   containing parent
See Also:
  • setLocale
Returns:this component's locale; if this component does
   not have a locale, the locale of its parent is returned
/**
             * Gets the locale of the component. If the component
             * does not have a locale, then the locale of its parent
             * is returned.
             *
             * @return this component's locale; if this component does
             *    not have a locale, the locale of its parent is returned
             * @exception IllegalComponentStateException if the
             *    <code>Component</code> does not have its own locale
             *    and has not yet been added to a containment hierarchy
             *    such that the locale can be determined from the
             *    containing parent
             * @see #setLocale
             */
            public Locale getLocale() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getLocale();
                } else {
                    return null;
                }
            }

            
Adds a PropertyChangeListener to the listener list.
The listener is registered for all properties.

Params:
  • l –  the PropertyChangeListener
    to be added
/**
             * Adds a <code>PropertyChangeListener</code> to the listener list.
             * The listener is registered for all properties.
             *
             * @param l  the <code>PropertyChangeListener</code>
             *     to be added
             */
            public void addPropertyChangeListener(PropertyChangeListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.addPropertyChangeListener(l);
                } else {
                    super.addPropertyChangeListener(l);
                }
            }

            
Removes a PropertyChangeListener from the
listener list. This removes a PropertyChangeListener
that was registered for all properties.

Params:
  • l –  the PropertyChangeListener
   to be removed
/**
             * Removes a <code>PropertyChangeListener</code> from the
             * listener list. This removes a <code>PropertyChangeListener</code>
             * that was registered for all properties.
             *
             * @param l  the <code>PropertyChangeListener</code>
             *    to be removed
             */
            public void removePropertyChangeListener(PropertyChangeListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.removePropertyChangeListener(l);
                } else {
                    super.removePropertyChangeListener(l);
                }
            }

            
Gets the AccessibleAction associated with this
object if one exists.  Otherwise returns null.

Returns:the AccessibleAction, or null
/**
             * Gets the <code>AccessibleAction</code> associated with this
             * object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleAction</code>, or <code>null</code>
             */
            public AccessibleAction getAccessibleAction() {
                return getCurrentAccessibleContext().getAccessibleAction();
            }

            
Gets the AccessibleComponent associated with
this object if one exists.  Otherwise returns null.

Returns:the AccessibleComponent, or
   null
/**
             * Gets the <code>AccessibleComponent</code> associated with
             * this object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleComponent</code>, or
             *    <code>null</code>
             */
            public AccessibleComponent getAccessibleComponent() {
                return this; // to override getBounds()
            }

            
Gets the AccessibleSelection associated with
this object if one exists.  Otherwise returns null.

Returns:the AccessibleSelection, or
   null
/**
             * Gets the <code>AccessibleSelection</code> associated with
             * this object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleSelection</code>, or
             *    <code>null</code>
             */
            public AccessibleSelection getAccessibleSelection() {
                return getCurrentAccessibleContext().getAccessibleSelection();
            }

            
Gets the AccessibleText associated with this
object if one exists.  Otherwise returns null.

Returns:the AccessibleText, or null
/**
             * Gets the <code>AccessibleText</code> associated with this
             * object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleText</code>, or <code>null</code>
             */
            public AccessibleText getAccessibleText() {
                return getCurrentAccessibleContext().getAccessibleText();
            }

            
Gets the AccessibleValue associated with
this object if one exists.  Otherwise returns null.

Returns:the AccessibleValue, or null
/**
             * Gets the <code>AccessibleValue</code> associated with
             * this object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleValue</code>, or <code>null</code>
             */
            public AccessibleValue getAccessibleValue() {
                return getCurrentAccessibleContext().getAccessibleValue();
            }


        // AccessibleComponent methods

            
Gets the background color of this object.

Returns:the background color, if supported, of the object;
    otherwise, null
/**
             * Gets the background color of this object.
             *
             * @return the background color, if supported, of the object;
             *     otherwise, <code>null</code>
             */
            public Color getBackground() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getBackground();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getBackground();
                    } else {
                        return null;
                    }
                }
            }

            
Sets the background color of this object.

Params:
  • c – the new Color for the background
/**
             * Sets the background color of this object.
             *
             * @param c the new <code>Color</code> for the background
             */
            public void setBackground(Color c) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setBackground(c);
                } else {
                    Component cp = getCurrentComponent();
                    if (cp != null) {
                        cp.setBackground(c);
                    }
                }
            }

            
Gets the foreground color of this object.

Returns:the foreground color, if supported, of the object;
    otherwise, null
/**
             * Gets the foreground color of this object.
             *
             * @return the foreground color, if supported, of the object;
             *     otherwise, <code>null</code>
             */
            public Color getForeground() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getForeground();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getForeground();
                    } else {
                        return null;
                    }
                }
            }

            
Sets the foreground color of this object.

Params:
  • c – the new Color for the foreground
/**
             * Sets the foreground color of this object.
             *
             * @param c the new <code>Color</code> for the foreground
             */
            public void setForeground(Color c) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setForeground(c);
                } else {
                    Component cp = getCurrentComponent();
                    if (cp != null) {
                        cp.setForeground(c);
                    }
                }
            }

            
Gets the Cursor of this object.

Returns:the Cursor, if supported,
   of the object; otherwise, null
/**
             * Gets the <code>Cursor</code> of this object.
             *
             * @return the <code>Cursor</code>, if supported,
             *    of the object; otherwise, <code>null</code>
             */
            public Cursor getCursor() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getCursor();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getCursor();
                    } else {
                        Accessible ap = getAccessibleParent();
                        if (ap instanceof AccessibleComponent) {
                            return ((AccessibleComponent) ap).getCursor();
                        } else {
                            return null;
                        }
                    }
                }
            }

            
Sets the Cursor of this object.

Params:
  • c – the new Cursor for the object
/**
             * Sets the <code>Cursor</code> of this object.
             *
             * @param c the new <code>Cursor</code> for the object
             */
            public void setCursor(Cursor c) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setCursor(c);
                } else {
                    Component cp = getCurrentComponent();
                    if (cp != null) {
                        cp.setCursor(c);
                    }
                }
            }

            
Gets the Font of this object.

Returns:the Font,if supported,
  for the object; otherwise, null
/**
             * Gets the <code>Font</code> of this object.
             *
             * @return the <code>Font</code>,if supported,
             *   for the object; otherwise, <code>null</code>
             */
            public Font getFont() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getFont();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getFont();
                    } else {
                        return null;
                    }
                }
            }

            
Sets the Font of this object.

Params:
  • f – the new Font for the object
/**
             * Sets the <code>Font</code> of this object.
             *
             * @param f the new <code>Font</code> for the object
             */
            public void setFont(Font f) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setFont(f);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setFont(f);
                    }
                }
            }

            
Gets the FontMetrics of this object.

Params:
  • f – the Font
See Also:
Returns:the FontMetrics object, if supported;
   otherwise null
/**
             * Gets the <code>FontMetrics</code> of this object.
             *
             * @param f the <code>Font</code>
             * @return the <code>FontMetrics</code> object, if supported;
             *    otherwise <code>null</code>
             * @see #getFont
             */
            public FontMetrics getFontMetrics(Font f) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getFontMetrics(f);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getFontMetrics(f);
                    } else {
                        return null;
                    }
                }
            }

            
Determines if the object is enabled.

Returns:true if object is enabled; otherwise, false
/**
             * Determines if the object is enabled.
             *
             * @return true if object is enabled; otherwise, false
             */
            public boolean isEnabled() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).isEnabled();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isEnabled();
                    } else {
                        return false;
                    }
                }
            }

            
Sets the enabled state of the object.

Params:
  • b – if true, enables this object; otherwise, disables it
/**
             * Sets the enabled state of the object.
             *
             * @param b if true, enables this object; otherwise, disables it
             */
            public void setEnabled(boolean b) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setEnabled(b);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setEnabled(b);
                    }
                }
            }

            
Determines if this object is visible.  Note: this means that the
object intends to be visible; however, it may not in fact be
showing on the screen because one of the objects that this object
is contained by is not visible.  To determine if an object is
showing on the screen, use isShowing.

Returns:true if object is visible; otherwise, false
/**
             * Determines if this object is visible.  Note: this means that the
             * object intends to be visible; however, it may not in fact be
             * showing on the screen because one of the objects that this object
             * is contained by is not visible.  To determine if an object is
             * showing on the screen, use <code>isShowing</code>.
             *
             * @return true if object is visible; otherwise, false
             */
            public boolean isVisible() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).isVisible();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isVisible();
                    } else {
                        return false;
                    }
                }
            }

            
Sets the visible state of the object.

Params:
  • b – if true, shows this object; otherwise, hides it
/**
             * Sets the visible state of the object.
             *
             * @param b if true, shows this object; otherwise, hides it
             */
            public void setVisible(boolean b) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setVisible(b);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setVisible(b);
                    }
                }
            }

            
Determines if the object is showing.  This is determined
by checking the visibility of the object and ancestors
of the object.  Note: this will return true even if the
object is obscured by another (for example,
it happens to be underneath a menu that was pulled down).

Returns:true if the object is showing; otherwise, false
/**
             * Determines if the object is showing.  This is determined
             * by checking the visibility of the object and ancestors
             * of the object.  Note: this will return true even if the
             * object is obscured by another (for example,
             * it happens to be underneath a menu that was pulled down).
             *
             * @return true if the object is showing; otherwise, false
             */
            public boolean isShowing() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    if (ac.getAccessibleParent() != null) {
                        return ((AccessibleComponent) ac).isShowing();
                    } else {
                        // Fixes 4529616 - AccessibleJTableCell.isShowing()
                        // returns false when the cell on the screen
                        // if no parent
                        return isVisible();
                    }
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isShowing();
                    } else {
                        return false;
                    }
                }
            }

            
Checks whether the specified point is within this
object's bounds, where the point's x and y coordinates
are defined to be relative to the coordinate system of
the object.

Params:
  • p – the Point relative to the
   coordinate system of the object
Returns:true if object contains Point;
   otherwise false
/**
             * Checks whether the specified point is within this
             * object's bounds, where the point's x and y coordinates
             * are defined to be relative to the coordinate system of
             * the object.
             *
             * @param p the <code>Point</code> relative to the
             *    coordinate system of the object
             * @return true if object contains <code>Point</code>;
             *    otherwise false
             */
            public boolean contains(Point p) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    Rectangle r = ((AccessibleComponent) ac).getBounds();
                    return r.contains(p);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        Rectangle r = c.getBounds();
                        return r.contains(p);
                    } else {
                        return getBounds().contains(p);
                    }
                }
            }

            
Returns the location of the object on the screen.

Returns:location of object on screen -- can be
   null if this object is not on the screen
/**
             * Returns the location of the object on the screen.
             *
             * @return location of object on screen -- can be
             *    <code>null</code> if this object is not on the screen
             */
            public Point getLocationOnScreen() {
                if (parent != null && parent.isShowing()) {
                    Point parentLocation = parent.getLocationOnScreen();
                    Point componentLocation = getLocation();
                    componentLocation.translate(parentLocation.x, parentLocation.y);
                    return componentLocation;
                } else {
                    return null;
                }
            }

            
Gets the location of the object relative to the parent
in the form of a point specifying the object's
top-left corner in the screen's coordinate space.

Returns:an instance of Point representing
   the top-left corner of the object's bounds in the
   coordinate space of the screen; null if
   this object or its parent are not on the screen
/**
             * Gets the location of the object relative to the parent
             * in the form of a point specifying the object's
             * top-left corner in the screen's coordinate space.
             *
             * @return an instance of <code>Point</code> representing
             *    the top-left corner of the object's bounds in the
             *    coordinate space of the screen; <code>null</code> if
             *    this object or its parent are not on the screen
             */
            public Point getLocation() {
                if (parent != null) {
                    Rectangle r = parent.getCellRect(row, column, false);
                    if (r != null) {
                        return r.getLocation();
                    }
                }
                return null;
            }

            
Sets the location of the object relative to the parent.

/**
             * Sets the location of the object relative to the parent.
             */
            public void setLocation(Point p) {
//              if ((parent != null)  && (parent.contains(p))) {
//                  ensureIndexIsVisible(indexInParent);
//              }
            }

            public Rectangle getBounds() {
                if (parent != null) {
                    return parent.getCellRect(row, column, false);
                } else {
                    return null;
                }
            }

            public void setBounds(Rectangle r) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setBounds(r);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setBounds(r);
                    }
                }
            }

            public Dimension getSize() {
                if (parent != null) {
                    Rectangle r = parent.getCellRect(row, column, false);
                    if (r != null) {
                        return r.getSize();
                    }
                }
                return null;
            }

            public void setSize (Dimension d) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setSize(d);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setSize(d);
                    }
                }
            }

            public Accessible getAccessibleAt(Point p) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getAccessibleAt(p);
                } else {
                    return null;
                }
            }

            @SuppressWarnings("deprecation")
            public boolean isFocusTraversable() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).isFocusTraversable();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isFocusTraversable();
                    } else {
                        return false;
                    }
                }
            }

            public void requestFocus() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).requestFocus();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.requestFocus();
                    }
                }
            }

            public void addFocusListener(FocusListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).addFocusListener(l);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.addFocusListener(l);
                    }
                }
            }

            public void removeFocusListener(FocusListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).removeFocusListener(l);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.removeFocusListener(l);
                    }
                }
            }

        } // inner class AccessibleJTableCell

        // Begin AccessibleJTableHeader ========== // TIGER - 4715503

        
This class implements accessibility for JTable header cells.

/**
         * This class implements accessibility for JTable header cells.
         */
        private class AccessibleJTableHeaderCell extends AccessibleContext
            implements Accessible, AccessibleComponent {

            private int row;
            private int column;
            private JTableHeader parent;
            private Component rendererComponent;

            
Constructs an AccessibleJTableHeaderEntry instance.

Params:
  • row – header cell row index
  • column – header cell column index
  • parent – header cell parent
  • rendererComponent – component that renders the header cell
/**
             * Constructs an <code>AccessibleJTableHeaderEntry</code> instance.
             *
             * @param row header cell row index
             * @param column header cell column index
             * @param parent header cell parent
             * @param rendererComponent component that renders the header cell
             */
            public AccessibleJTableHeaderCell(int row, int column,
                                              JTableHeader parent,
                                              Component rendererComponent) {
                this.row = row;
                this.column = column;
                this.parent = parent;
                this.rendererComponent = rendererComponent;
                this.setAccessibleParent(parent);
            }

            
Gets the AccessibleContext associated with this
component. In the implementation of the Java Accessibility
API for this class, return this object, which is its own
AccessibleContext.

Returns:this object
/**
             * Gets the <code>AccessibleContext</code> associated with this
             * component. In the implementation of the Java Accessibility
             * API for this class, return this object, which is its own
             * <code>AccessibleContext</code>.
             *
             * @return this object
             */
            public AccessibleContext getAccessibleContext() {
                return this;
            }

            /*
             * Returns the AccessibleContext for the header cell
             * renderer.
             */
            private AccessibleContext getCurrentAccessibleContext() {
                return rendererComponent.getAccessibleContext();
            }

            /*
             * Returns the component that renders the header cell.
             */
            private Component getCurrentComponent() {
                return rendererComponent;
            }

            // AccessibleContext methods ==========

            
Gets the accessible name of this object.

Returns:the localized name of the object; null
    if this object does not have a name
/**
             * Gets the accessible name of this object.
             *
             * @return the localized name of the object; <code>null</code>
             *     if this object does not have a name
             */
            public String getAccessibleName() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    String name = ac.getAccessibleName();
                    if ((name != null) && (name != "")) {
                        return ac.getAccessibleName();
                    }
                }
                if ((accessibleName != null) && (accessibleName != "")) {
                    return accessibleName;
                } else {
                    return null;
                }
            }

            
Sets the localized accessible name of this object.

Params:
  • s – the new localized name of the object
/**
             * Sets the localized accessible name of this object.
             *
             * @param s the new localized name of the object
             */
            public void setAccessibleName(String s) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.setAccessibleName(s);
                } else {
                    super.setAccessibleName(s);
                }
            }

            
Gets the accessible description of this object.

Returns:the localized description of the object;
    null if this object does not have
    a description
/**
             * Gets the accessible description of this object.
             *
             * @return the localized description of the object;
             *     <code>null</code> if this object does not have
             *     a description
             */
            public String getAccessibleDescription() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getAccessibleDescription();
                } else {
                    return super.getAccessibleDescription();
                }
            }

            
Sets the accessible description of this object.

Params:
  • s – the new localized description of the object
/**
             * Sets the accessible description of this object.
             *
             * @param s the new localized description of the object
             */
            public void setAccessibleDescription(String s) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.setAccessibleDescription(s);
                } else {
                    super.setAccessibleDescription(s);
                }
            }

            
Gets the role of this object.

See Also:
Returns:an instance of AccessibleRole
     describing the role of the object
/**
             * Gets the role of this object.
             *
             * @return an instance of <code>AccessibleRole</code>
             *      describing the role of the object
             * @see AccessibleRole
             */
            public AccessibleRole getAccessibleRole() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getAccessibleRole();
                } else {
                    return AccessibleRole.UNKNOWN;
                }
            }

            
Gets the state set of this object.

See Also:
Returns:an instance of AccessibleStateSet
    containing the current state set of the object
/**
             * Gets the state set of this object.
             *
             * @return an instance of <code>AccessibleStateSet</code>
             *     containing the current state set of the object
             * @see AccessibleState
             */
            public AccessibleStateSet getAccessibleStateSet() {
                AccessibleContext ac = getCurrentAccessibleContext();
                AccessibleStateSet as = null;

                if (ac != null) {
                    as = ac.getAccessibleStateSet();
                }
                if (as == null) {
                    as = new AccessibleStateSet();
                }
                Rectangle rjt = JTable.this.getVisibleRect();
                Rectangle rcell = JTable.this.getCellRect(row, column, false);
                if (rjt.intersects(rcell)) {
                    as.add(AccessibleState.SHOWING);
                } else {
                    if (as.contains(AccessibleState.SHOWING)) {
                         as.remove(AccessibleState.SHOWING);
                    }
                }
                if (JTable.this.isCellSelected(row, column)) {
                    as.add(AccessibleState.SELECTED);
                } else if (as.contains(AccessibleState.SELECTED)) {
                    as.remove(AccessibleState.SELECTED);
                }
                if ((row == getSelectedRow()) && (column == getSelectedColumn())) {
                    as.add(AccessibleState.ACTIVE);
                }
                as.add(AccessibleState.TRANSIENT);
                return as;
            }

            
Gets the Accessible parent of this object.

Returns:the Accessible parent of this object;
    null if this object does not
    have an Accessible parent
/**
             * Gets the <code>Accessible</code> parent of this object.
             *
             * @return the Accessible parent of this object;
             *     <code>null</code> if this object does not
             *     have an <code>Accessible</code> parent
             */
            public Accessible getAccessibleParent() {
                return parent;
            }

            
Gets the index of this object in its accessible parent.

See Also:
Returns:the index of this object in its parent; -1 if this
    object does not have an accessible parent
/**
             * Gets the index of this object in its accessible parent.
             *
             * @return the index of this object in its parent; -1 if this
             *     object does not have an accessible parent
             * @see #getAccessibleParent
             */
            public int getAccessibleIndexInParent() {
                return column;
            }

            
Returns the number of accessible children in the object.

Returns:the number of accessible children in the object
/**
             * Returns the number of accessible children in the object.
             *
             * @return the number of accessible children in the object
             */
            public int getAccessibleChildrenCount() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getAccessibleChildrenCount();
                } else {
                    return 0;
                }
            }

            
Returns the specified Accessible child of the
object.

Params:
  • i – zero-based index of child
Returns:the Accessible child of the object
/**
             * Returns the specified <code>Accessible</code> child of the
             * object.
             *
             * @param i zero-based index of child
             * @return the <code>Accessible</code> child of the object
             */
            public Accessible getAccessibleChild(int i) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    Accessible accessibleChild = ac.getAccessibleChild(i);
                    ac.setAccessibleParent(this);
                    return accessibleChild;
                } else {
                    return null;
                }
            }

            
Gets the locale of the component. If the component
does not have a locale, then the locale of its parent
is returned.

Throws:
  • IllegalComponentStateException – if the
   Component does not have its own locale
   and has not yet been added to a containment hierarchy
   such that the locale can be determined from the
   containing parent
See Also:
  • setLocale
Returns:this component's locale; if this component does
   not have a locale, the locale of its parent is returned
/**
             * Gets the locale of the component. If the component
             * does not have a locale, then the locale of its parent
             * is returned.
             *
             * @return this component's locale; if this component does
             *    not have a locale, the locale of its parent is returned
             * @exception IllegalComponentStateException if the
             *    <code>Component</code> does not have its own locale
             *    and has not yet been added to a containment hierarchy
             *    such that the locale can be determined from the
             *    containing parent
             * @see #setLocale
             */
            public Locale getLocale() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    return ac.getLocale();
                } else {
                    return null;
                }
            }

            
Adds a PropertyChangeListener to the listener list.
The listener is registered for all properties.

Params:
  • l –  the PropertyChangeListener
    to be added
/**
             * Adds a <code>PropertyChangeListener</code> to the listener list.
             * The listener is registered for all properties.
             *
             * @param l  the <code>PropertyChangeListener</code>
             *     to be added
             */
            public void addPropertyChangeListener(PropertyChangeListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.addPropertyChangeListener(l);
                } else {
                    super.addPropertyChangeListener(l);
                }
            }

            
Removes a PropertyChangeListener from the
listener list. This removes a PropertyChangeListener
that was registered for all properties.

Params:
  • l –  the PropertyChangeListener
   to be removed
/**
             * Removes a <code>PropertyChangeListener</code> from the
             * listener list. This removes a <code>PropertyChangeListener</code>
             * that was registered for all properties.
             *
             * @param l  the <code>PropertyChangeListener</code>
             *    to be removed
             */
            public void removePropertyChangeListener(PropertyChangeListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac != null) {
                    ac.removePropertyChangeListener(l);
                } else {
                    super.removePropertyChangeListener(l);
                }
            }

            
Gets the AccessibleAction associated with this
object if one exists.  Otherwise returns null.

Returns:the AccessibleAction, or null
/**
             * Gets the <code>AccessibleAction</code> associated with this
             * object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleAction</code>, or <code>null</code>
             */
            public AccessibleAction getAccessibleAction() {
                return getCurrentAccessibleContext().getAccessibleAction();
            }

            
Gets the AccessibleComponent associated with
this object if one exists.  Otherwise returns null.

Returns:the AccessibleComponent, or
   null
/**
             * Gets the <code>AccessibleComponent</code> associated with
             * this object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleComponent</code>, or
             *    <code>null</code>
             */
            public AccessibleComponent getAccessibleComponent() {
                return this; // to override getBounds()
            }

            
Gets the AccessibleSelection associated with
this object if one exists.  Otherwise returns null.

Returns:the AccessibleSelection, or
   null
/**
             * Gets the <code>AccessibleSelection</code> associated with
             * this object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleSelection</code>, or
             *    <code>null</code>
             */
            public AccessibleSelection getAccessibleSelection() {
                return getCurrentAccessibleContext().getAccessibleSelection();
            }

            
Gets the AccessibleText associated with this
object if one exists.  Otherwise returns null.

Returns:the AccessibleText, or null
/**
             * Gets the <code>AccessibleText</code> associated with this
             * object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleText</code>, or <code>null</code>
             */
            public AccessibleText getAccessibleText() {
                return getCurrentAccessibleContext().getAccessibleText();
            }

            
Gets the AccessibleValue associated with
this object if one exists.  Otherwise returns null.

Returns:the AccessibleValue, or null
/**
             * Gets the <code>AccessibleValue</code> associated with
             * this object if one exists.  Otherwise returns <code>null</code>.
             *
             * @return the <code>AccessibleValue</code>, or <code>null</code>
             */
            public AccessibleValue getAccessibleValue() {
                return getCurrentAccessibleContext().getAccessibleValue();
            }


            // AccessibleComponent methods ==========

            
Gets the background color of this object.

Returns:the background color, if supported, of the object;
    otherwise, null
/**
             * Gets the background color of this object.
             *
             * @return the background color, if supported, of the object;
             *     otherwise, <code>null</code>
             */
            public Color getBackground() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getBackground();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getBackground();
                    } else {
                        return null;
                    }
                }
            }

            
Sets the background color of this object.

Params:
  • c – the new Color for the background
/**
             * Sets the background color of this object.
             *
             * @param c the new <code>Color</code> for the background
             */
            public void setBackground(Color c) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setBackground(c);
                } else {
                    Component cp = getCurrentComponent();
                    if (cp != null) {
                        cp.setBackground(c);
                    }
                }
            }

            
Gets the foreground color of this object.

Returns:the foreground color, if supported, of the object;
    otherwise, null
/**
             * Gets the foreground color of this object.
             *
             * @return the foreground color, if supported, of the object;
             *     otherwise, <code>null</code>
             */
            public Color getForeground() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getForeground();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getForeground();
                    } else {
                        return null;
                    }
                }
            }

            
Sets the foreground color of this object.

Params:
  • c – the new Color for the foreground
/**
             * Sets the foreground color of this object.
             *
             * @param c the new <code>Color</code> for the foreground
             */
            public void setForeground(Color c) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setForeground(c);
                } else {
                    Component cp = getCurrentComponent();
                    if (cp != null) {
                        cp.setForeground(c);
                    }
                }
            }

            
Gets the Cursor of this object.

Returns:the Cursor, if supported,
   of the object; otherwise, null
/**
             * Gets the <code>Cursor</code> of this object.
             *
             * @return the <code>Cursor</code>, if supported,
             *    of the object; otherwise, <code>null</code>
             */
            public Cursor getCursor() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getCursor();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getCursor();
                    } else {
                        Accessible ap = getAccessibleParent();
                        if (ap instanceof AccessibleComponent) {
                            return ((AccessibleComponent) ap).getCursor();
                        } else {
                            return null;
                        }
                    }
                }
            }

            
Sets the Cursor of this object.

Params:
  • c – the new Cursor for the object
/**
             * Sets the <code>Cursor</code> of this object.
             *
             * @param c the new <code>Cursor</code> for the object
             */
            public void setCursor(Cursor c) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setCursor(c);
                } else {
                    Component cp = getCurrentComponent();
                    if (cp != null) {
                        cp.setCursor(c);
                    }
                }
            }

            
Gets the Font of this object.

Returns:the Font,if supported,
  for the object; otherwise, null
/**
             * Gets the <code>Font</code> of this object.
             *
             * @return the <code>Font</code>,if supported,
             *   for the object; otherwise, <code>null</code>
             */
            public Font getFont() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getFont();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getFont();
                    } else {
                        return null;
                    }
                }
            }

            
Sets the Font of this object.

Params:
  • f – the new Font for the object
/**
             * Sets the <code>Font</code> of this object.
             *
             * @param f the new <code>Font</code> for the object
             */
            public void setFont(Font f) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setFont(f);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setFont(f);
                    }
                }
            }

            
Gets the FontMetrics of this object.

Params:
  • f – the Font
See Also:
Returns:the FontMetrics object, if supported;
   otherwise null
/**
             * Gets the <code>FontMetrics</code> of this object.
             *
             * @param f the <code>Font</code>
             * @return the <code>FontMetrics</code> object, if supported;
             *    otherwise <code>null</code>
             * @see #getFont
             */
            public FontMetrics getFontMetrics(Font f) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getFontMetrics(f);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.getFontMetrics(f);
                    } else {
                        return null;
                    }
                }
            }

            
Determines if the object is enabled.

Returns:true if object is enabled; otherwise, false
/**
             * Determines if the object is enabled.
             *
             * @return true if object is enabled; otherwise, false
             */
            public boolean isEnabled() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).isEnabled();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isEnabled();
                    } else {
                        return false;
                    }
                }
            }

            
Sets the enabled state of the object.

Params:
  • b – if true, enables this object; otherwise, disables it
/**
             * Sets the enabled state of the object.
             *
             * @param b if true, enables this object; otherwise, disables it
             */
            public void setEnabled(boolean b) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setEnabled(b);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setEnabled(b);
                    }
                }
            }

            
Determines if this object is visible.  Note: this means that the
object intends to be visible; however, it may not in fact be
showing on the screen because one of the objects that this object
is contained by is not visible.  To determine if an object is
showing on the screen, use isShowing.

Returns:true if object is visible; otherwise, false
/**
             * Determines if this object is visible.  Note: this means that the
             * object intends to be visible; however, it may not in fact be
             * showing on the screen because one of the objects that this object
             * is contained by is not visible.  To determine if an object is
             * showing on the screen, use <code>isShowing</code>.
             *
             * @return true if object is visible; otherwise, false
             */
            public boolean isVisible() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).isVisible();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isVisible();
                    } else {
                        return false;
                    }
                }
            }

            
Sets the visible state of the object.

Params:
  • b – if true, shows this object; otherwise, hides it
/**
             * Sets the visible state of the object.
             *
             * @param b if true, shows this object; otherwise, hides it
             */
            public void setVisible(boolean b) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setVisible(b);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setVisible(b);
                    }
                }
            }

            
Determines if the object is showing.  This is determined
by checking the visibility of the object and ancestors
of the object.  Note: this will return true even if the
object is obscured by another (for example,
it happens to be underneath a menu that was pulled down).

Returns:true if the object is showing; otherwise, false
/**
             * Determines if the object is showing.  This is determined
             * by checking the visibility of the object and ancestors
             * of the object.  Note: this will return true even if the
             * object is obscured by another (for example,
             * it happens to be underneath a menu that was pulled down).
             *
             * @return true if the object is showing; otherwise, false
             */
            public boolean isShowing() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    if (ac.getAccessibleParent() != null) {
                        return ((AccessibleComponent) ac).isShowing();
                    } else {
                        // Fixes 4529616 - AccessibleJTableCell.isShowing()
                        // returns false when the cell on the screen
                        // if no parent
                        return isVisible();
                    }
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isShowing();
                    } else {
                        return false;
                    }
                }
            }

            
Checks whether the specified point is within this
object's bounds, where the point's x and y coordinates
are defined to be relative to the coordinate system of
the object.

Params:
  • p – the Point relative to the
   coordinate system of the object
Returns:true if object contains Point;
   otherwise false
/**
             * Checks whether the specified point is within this
             * object's bounds, where the point's x and y coordinates
             * are defined to be relative to the coordinate system of
             * the object.
             *
             * @param p the <code>Point</code> relative to the
             *    coordinate system of the object
             * @return true if object contains <code>Point</code>;
             *    otherwise false
             */
            public boolean contains(Point p) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    Rectangle r = ((AccessibleComponent) ac).getBounds();
                    return r.contains(p);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        Rectangle r = c.getBounds();
                        return r.contains(p);
                    } else {
                        return getBounds().contains(p);
                    }
                }
            }

            
Returns the location of the object on the screen.

Returns:location of object on screen -- can be
   null if this object is not on the screen
/**
             * Returns the location of the object on the screen.
             *
             * @return location of object on screen -- can be
             *    <code>null</code> if this object is not on the screen
             */
            public Point getLocationOnScreen() {
                if (parent != null && parent.isShowing()) {
                    Point parentLocation = parent.getLocationOnScreen();
                    Point componentLocation = getLocation();
                    componentLocation.translate(parentLocation.x, parentLocation.y);
                    return componentLocation;
                } else {
                    return null;
                }
            }

            
Gets the location of the object relative to the parent
in the form of a point specifying the object's
top-left corner in the screen's coordinate space.

Returns:an instance of Point representing
   the top-left corner of the object's bounds in the
   coordinate space of the screen; null if
   this object or its parent are not on the screen
/**
             * Gets the location of the object relative to the parent
             * in the form of a point specifying the object's
             * top-left corner in the screen's coordinate space.
             *
             * @return an instance of <code>Point</code> representing
             *    the top-left corner of the object's bounds in the
             *    coordinate space of the screen; <code>null</code> if
             *    this object or its parent are not on the screen
             */
            public Point getLocation() {
                if (parent != null) {
                    Rectangle r = parent.getHeaderRect(column);
                    if (r != null) {
                        return r.getLocation();
                    }
                }
                return null;
            }

            
Sets the location of the object relative to the parent.

Params:
  • p – the new position for the top-left corner
See Also:
/**
             * Sets the location of the object relative to the parent.
             * @param p the new position for the top-left corner
             * @see #getLocation
             */
            public void setLocation(Point p) {
            }

            
Gets the bounds of this object in the form of a Rectangle object.
The bounds specify this object's width, height, and location
relative to its parent.

See Also:
Returns:A rectangle indicating this component's bounds; null if
this object is not on the screen.
/**
             * Gets the bounds of this object in the form of a Rectangle object.
             * The bounds specify this object's width, height, and location
             * relative to its parent.
             *
             * @return A rectangle indicating this component's bounds; null if
             * this object is not on the screen.
             * @see #contains
             */
            public Rectangle getBounds() {
                if (parent != null) {
                    return parent.getHeaderRect(column);
                } else {
                    return null;
                }
            }

            
Sets the bounds of this object in the form of a Rectangle object.
The bounds specify this object's width, height, and location
relative to its parent.

Params:
  • r – rectangle indicating this component's bounds
See Also:
/**
             * Sets the bounds of this object in the form of a Rectangle object.
             * The bounds specify this object's width, height, and location
             * relative to its parent.
             *
             * @param r rectangle indicating this component's bounds
             * @see #getBounds
             */
            public void setBounds(Rectangle r) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setBounds(r);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setBounds(r);
                    }
                }
            }

            
Returns the size of this object in the form of a Dimension object.
The height field of the Dimension object contains this object's
height, and the width field of the Dimension object contains this
object's width.

See Also:
Returns:A Dimension object that indicates the size of this component;
null if this object is not on the screen
/**
             * Returns the size of this object in the form of a Dimension object.
             * The height field of the Dimension object contains this object's
             * height, and the width field of the Dimension object contains this
             * object's width.
             *
             * @return A Dimension object that indicates the size of this component;
             * null if this object is not on the screen
             * @see #setSize
             */
            public Dimension getSize() {
                if (parent != null) {
                    Rectangle r = parent.getHeaderRect(column);
                    if (r != null) {
                        return r.getSize();
                    }
                }
                return null;
            }

            
Resizes this object so that it has width and height.

Params:
  • d – The dimension specifying the new size of the object.
See Also:
/**
             * Resizes this object so that it has width and height.
             *
             * @param d The dimension specifying the new size of the object.
             * @see #getSize
             */
            public void setSize (Dimension d) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).setSize(d);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.setSize(d);
                    }
                }
            }

            
Returns the Accessible child, if one exists, contained at the local
coordinate Point.

Params:
  • p – The point relative to the coordinate system of this object.
Returns:the Accessible, if it exists, at the specified location;
otherwise null
/**
             * Returns the Accessible child, if one exists, contained at the local
             * coordinate Point.
             *
             * @param p The point relative to the coordinate system of this object.
             * @return the Accessible, if it exists, at the specified location;
             * otherwise null
             */
            public Accessible getAccessibleAt(Point p) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).getAccessibleAt(p);
                } else {
                    return null;
                }
            }

            
Returns whether this object can accept focus or not.   Objects that
can accept focus will also have the AccessibleState.FOCUSABLE state
set in their AccessibleStateSets.

See Also:
Returns:true if object can accept focus; otherwise false
/**
             * Returns whether this object can accept focus or not.   Objects that
             * can accept focus will also have the AccessibleState.FOCUSABLE state
             * set in their AccessibleStateSets.
             *
             * @return true if object can accept focus; otherwise false
             * @see AccessibleContext#getAccessibleStateSet
             * @see AccessibleState#FOCUSABLE
             * @see AccessibleState#FOCUSED
             * @see AccessibleStateSet
             */
            @SuppressWarnings("deprecation")
            public boolean isFocusTraversable() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    return ((AccessibleComponent) ac).isFocusTraversable();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        return c.isFocusTraversable();
                    } else {
                        return false;
                    }
                }
            }

            
Requests focus for this object.  If this object cannot accept focus,
nothing will happen.  Otherwise, the object will attempt to take
focus.

See Also:
  • isFocusTraversable
/**
             * Requests focus for this object.  If this object cannot accept focus,
             * nothing will happen.  Otherwise, the object will attempt to take
             * focus.
             * @see #isFocusTraversable
             */
            public void requestFocus() {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).requestFocus();
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.requestFocus();
                    }
                }
            }

            
Adds the specified focus listener to receive focus events from this
component.

Params:
  • l – the focus listener
See Also:
/**
             * Adds the specified focus listener to receive focus events from this
             * component.
             *
             * @param l the focus listener
             * @see #removeFocusListener
             */
            public void addFocusListener(FocusListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).addFocusListener(l);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.addFocusListener(l);
                    }
                }
            }

            
Removes the specified focus listener so it no longer receives focus
events from this component.

Params:
  • l – the focus listener
See Also:
/**
             * Removes the specified focus listener so it no longer receives focus
             * events from this component.
             *
             * @param l the focus listener
             * @see #addFocusListener
             */
            public void removeFocusListener(FocusListener l) {
                AccessibleContext ac = getCurrentAccessibleContext();
                if (ac instanceof AccessibleComponent) {
                    ((AccessibleComponent) ac).removeFocusListener(l);
                } else {
                    Component c = getCurrentComponent();
                    if (c != null) {
                        c.removeFocusListener(l);
                    }
                }
            }

        } // inner class AccessibleJTableHeaderCell

    }  // inner class AccessibleJTable

}  // End of Class JTable