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/*
 * Copyright (c) 1998, 2007, 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,
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 *
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package javax.swing;

import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.io.*;
import java.util.*;

import javax.swing.colorchooser.*;
import javax.swing.plaf.ColorChooserUI;
import javax.swing.event.*;
import javax.accessibility.*;

import sun.swing.SwingUtilities2;



JColorChooser provides a pane of controls designed to allow
a user to manipulate and select a color.
For information about using color choosers, see
How to Use Color Choosers,
a section in The Java Tutorial.


This class provides three levels of API:

    

  1. A static convenience method which shows a modal color-chooser
dialog and returns the color selected by the user.

  2. A static convenience method for creating a color-chooser dialog
where ActionListeners can be specified to be invoked when
the user presses one of the dialog buttons.

  3. The ability to create instances of JColorChooser panes
directly (within any container). PropertyChange listeners
can be added to detect when the current "color" property changes.




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 JavaBeansTM
has been added to the java.beans package. Please see XMLEncoder. 
Author:James Gosling, Amy Fowler, Steve Wilson
@beaninfo
     attribute: isContainer false
   description: A component that supports selecting a Color.
/**
 * <code>JColorChooser</code> provides a pane of controls designed to allow
 * a user to manipulate and select a color.
 * For information about using color choosers, see
 * <a
 href="http://java.sun.com/docs/books/tutorial/uiswing/components/colorchooser.html">How to Use Color Choosers</a>,
 * a section in <em>The Java Tutorial</em>.
 *
 * <p>
 *
 * This class provides three levels of API:
 * <ol>
 * <li>A static convenience method which shows a modal color-chooser
 * dialog and returns the color selected by the user.
 * <li>A static convenience method for creating a color-chooser dialog
 * where <code>ActionListeners</code> can be specified to be invoked when
 * the user presses one of the dialog buttons.
 * <li>The ability to create instances of <code>JColorChooser</code> panes
 * directly (within any container). <code>PropertyChange</code> listeners
 * can be added to detect when the current "color" property changes.
 * </ol>
 * <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<sup><font size="-2">TM</font></sup>
 * has been added to the <code>java.beans</code> package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 *
 * @beaninfo
 *      attribute: isContainer false
 *    description: A component that supports selecting a Color.
 *
 *
 * @author James Gosling
 * @author Amy Fowler
 * @author Steve Wilson
 */
public class JColorChooser extends JComponent implements Accessible {

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

    private ColorSelectionModel selectionModel;

    private JComponent previewPanel;

    private AbstractColorChooserPanel[] chooserPanels = new AbstractColorChooserPanel[0];

    private boolean dragEnabled;

    
The selection model property name.

/**
     * The selection model property name.
     */
    public static final String      SELECTION_MODEL_PROPERTY = "selectionModel";

    
The preview panel property name.

/**
     * The preview panel property name.
     */
    public static final String      PREVIEW_PANEL_PROPERTY = "previewPanel";

    
The chooserPanel array property name.

/**
     * The chooserPanel array property name.
     */
    public static final String      CHOOSER_PANELS_PROPERTY = "chooserPanels";


    
Shows a modal color-chooser dialog and blocks until the
dialog is hidden.  If the user presses the "OK" button, then
this method hides/disposes the dialog and returns the selected color.
If the user presses the "Cancel" button or closes the dialog without
pressing "OK", then this method hides/disposes the dialog and returns
null.

Params:
  • component –    the parent Component for the dialog
  • title –        the String containing the dialog's title
  • initialColor – the initial Color set when the color-chooser is shown
Throws:
See Also:
Returns:the selected color or null if the user opted out
/**
     * Shows a modal color-chooser dialog and blocks until the
     * dialog is hidden.  If the user presses the "OK" button, then
     * this method hides/disposes the dialog and returns the selected color.
     * If the user presses the "Cancel" button or closes the dialog without
     * pressing "OK", then this method hides/disposes the dialog and returns
     * <code>null</code>.
     *
     * @param component    the parent <code>Component</code> for the dialog
     * @param title        the String containing the dialog's title
     * @param initialColor the initial Color set when the color-chooser is shown
     * @return the selected color or <code>null</code> if the user opted out
     * @exception HeadlessException if GraphicsEnvironment.isHeadless()
     * returns true.
     * @see java.awt.GraphicsEnvironment#isHeadless
     */
    public static Color showDialog(Component component,
        String title, Color initialColor) throws HeadlessException {

        final JColorChooser pane = new JColorChooser(initialColor != null?
                                               initialColor : Color.white);

        ColorTracker ok = new ColorTracker(pane);
        JDialog dialog = createDialog(component, title, true, pane, ok, null);

        dialog.addComponentListener(new ColorChooserDialog.DisposeOnClose());

        dialog.show(); // blocks until user brings dialog down...

        return ok.getColor();
    }


    
Creates and returns a new dialog containing the specified
ColorChooser pane along with "OK", "Cancel", and "Reset"
buttons. If the "OK" or "Cancel" buttons are pressed, the dialog is
automatically hidden (but not disposed).  If the "Reset"
button is pressed, the color-chooser's color will be reset to the
color which was set the last time show was invoked on the
dialog and the dialog will remain showing.

Params:
  • c –              the parent component for the dialog
  • title –          the title for the dialog
  • modal –          a boolean. When true, the remainder of the program
                      is inactive until the dialog is closed.
  • chooserPane –    the color-chooser to be placed inside the dialog
  • okListener –     the ActionListener invoked when "OK" is pressed
  • cancelListener – the ActionListener invoked when "Cancel" is pressed
Throws:
See Also:
Returns:a new dialog containing the color-chooser pane
/**
     * Creates and returns a new dialog containing the specified
     * <code>ColorChooser</code> pane along with "OK", "Cancel", and "Reset"
     * buttons. If the "OK" or "Cancel" buttons are pressed, the dialog is
     * automatically hidden (but not disposed).  If the "Reset"
     * button is pressed, the color-chooser's color will be reset to the
     * color which was set the last time <code>show</code> was invoked on the
     * dialog and the dialog will remain showing.
     *
     * @param c              the parent component for the dialog
     * @param title          the title for the dialog
     * @param modal          a boolean. When true, the remainder of the program
     *                       is inactive until the dialog is closed.
     * @param chooserPane    the color-chooser to be placed inside the dialog
     * @param okListener     the ActionListener invoked when "OK" is pressed
     * @param cancelListener the ActionListener invoked when "Cancel" is pressed
     * @return a new dialog containing the color-chooser pane
     * @exception HeadlessException if GraphicsEnvironment.isHeadless()
     * returns true.
     * @see java.awt.GraphicsEnvironment#isHeadless
     */
    public static JDialog createDialog(Component c, String title, boolean modal,
        JColorChooser chooserPane, ActionListener okListener,
        ActionListener cancelListener) throws HeadlessException {

        Window window = JOptionPane.getWindowForComponent(c);
        ColorChooserDialog dialog;
        if (window instanceof Frame) {
            dialog = new ColorChooserDialog((Frame)window, title, modal, c, chooserPane,
                                            okListener, cancelListener);
        } else {
            dialog = new ColorChooserDialog((Dialog)window, title, modal, c, chooserPane,
                                            okListener, cancelListener);
        }
        return dialog;
    }

    
Creates a color chooser pane with an initial color of white.

/**
     * Creates a color chooser pane with an initial color of white.
     */
    public JColorChooser() {
        this(Color.white);
    }

    
Creates a color chooser pane with the specified initial color.

Params:
  • initialColor – the initial color set in the chooser
/**
     * Creates a color chooser pane with the specified initial color.
     *
     * @param initialColor the initial color set in the chooser
     */
    public JColorChooser(Color initialColor) {
        this( new DefaultColorSelectionModel(initialColor) );

    }

    
Creates a color chooser pane with the specified
ColorSelectionModel.

Params:
  • model – the ColorSelectionModel to be used
/**
     * Creates a color chooser pane with the specified
     * <code>ColorSelectionModel</code>.
     *
     * @param model the <code>ColorSelectionModel</code> to be used
     */
    public JColorChooser(ColorSelectionModel model) {
        selectionModel = model;
        updateUI();
        dragEnabled = false;
    }

    
Returns the L&F object that renders this component.

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

    
Sets the L&F object that renders this component.

Params:
  • ui –  the ColorChooserUI L&F object
See Also:
@beaninfo
      bound: true
     hidden: true
description: The UI object that implements the color chooser's LookAndFeel.
/**
     * Sets the L&F object that renders this component.
     *
     * @param ui  the <code>ColorChooserUI</code> L&F object
     * @see UIDefaults#getUI
     *
     * @beaninfo
     *       bound: true
     *      hidden: true
     * description: The UI object that implements the color chooser's LookAndFeel.
     */
    public void setUI(ColorChooserUI ui) {
        super.setUI(ui);
    }

    
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&F has changed.
     * Replaces the current UI object with the latest version from the
     * <code>UIManager</code>.
     *
     * @see JComponent#updateUI
     */
    public void updateUI() {
        setUI((ColorChooserUI)UIManager.getUI(this));
    }

    
Returns the name of the L&F class that renders this component.

See Also:
Returns:the string "ColorChooserUI"
/**
     * Returns the name of the L&F class that renders this component.
     *
     * @return the string "ColorChooserUI"
     * @see JComponent#getUIClassID
     * @see UIDefaults#getUI
     */
    public String getUIClassID() {
        return uiClassID;
    }

    
Gets the current color value from the color chooser.
By default, this delegates to the model.

Returns:the current color value of the color chooser
/**
     * Gets the current color value from the color chooser.
     * By default, this delegates to the model.
     *
     * @return the current color value of the color chooser
     */
    public Color getColor() {
        return selectionModel.getSelectedColor();
    }

    
Sets the current color of the color chooser to the specified color.
The ColorSelectionModel will fire a ChangeEvent

Params:
  • color – the color to be set in the color chooser
See Also:
@beaninfo
      bound: false
     hidden: false
description: The current color the chooser is to display.
/**
     * Sets the current color of the color chooser to the specified color.
     * The <code>ColorSelectionModel</code> will fire a <code>ChangeEvent</code>
     * @param color the color to be set in the color chooser
     * @see JComponent#addPropertyChangeListener
     *
     * @beaninfo
     *       bound: false
     *      hidden: false
     * description: The current color the chooser is to display.
     */
    public void setColor(Color color) {
        selectionModel.setSelectedColor(color);

    }

    
Sets the current color of the color chooser to the
specified RGB color.  Note that the values of red, green,
and blue should be between the numbers 0 and 255, inclusive.

Params:
  • r –   an int specifying the amount of Red
  • g –   an int specifying the amount of Green
  • b –   an int specifying the amount of Blue
Throws:
See Also:
/**
     * Sets the current color of the color chooser to the
     * specified RGB color.  Note that the values of red, green,
     * and blue should be between the numbers 0 and 255, inclusive.
     *
     * @param r   an int specifying the amount of Red
     * @param g   an int specifying the amount of Green
     * @param b   an int specifying the amount of Blue
     * @exception IllegalArgumentException if r,g,b values are out of range
     * @see java.awt.Color
     */
    public void setColor(int r, int g, int b) {
        setColor(new Color(r,g,b));
    }

    
Sets the current color of the color chooser to the
specified color.

Params:
  • c – an integer value that sets the current color in the chooser
         where the low-order 8 bits specify the Blue value,
         the next 8 bits specify the Green value, and the 8 bits
         above that specify the Red value.
/**
     * Sets the current color of the color chooser to the
     * specified color.
     *
     * @param c an integer value that sets the current color in the chooser
     *          where the low-order 8 bits specify the Blue value,
     *          the next 8 bits specify the Green value, and the 8 bits
     *          above that specify the Red value.
     */
    public void setColor(int c) {
        setColor((c >> 16) & 0xFF, (c >> 8) & 0xFF, c & 0xFF);
    }

    
Sets the dragEnabled property,
which must be true to enable
automatic drag handling (the first part of drag and drop)
on this component.
The transferHandler property needs to be set
to a non-null value for the drag to do
anything.  The default value of the dragEnabled
property
is false.


When automatic drag handling is enabled,
most look and feels begin a drag-and-drop operation
when the user presses the mouse button over the preview panel.
Some look and feels might not support automatic drag and drop;
they will ignore this property.  You can work around such
look and feels by modifying the component
to directly call the exportAsDrag method of a
TransferHandler.

Params:
  • b – the value to set the dragEnabled property to
Throws:
See Also:
Since:1.4
@beaninfo
 description: Determines whether automatic drag handling is enabled.
       bound: false
/**
     * Sets the <code>dragEnabled</code> property,
     * which must be <code>true</code> to enable
     * automatic drag handling (the first part of drag and drop)
     * on this component.
     * The <code>transferHandler</code> property needs to be set
     * to a non-<code>null</code> value for the drag to do
     * anything.  The default value of the <code>dragEnabled</code>
     * property
     * is <code>false</code>.
     *
     * <p>
     *
     * When automatic drag handling is enabled,
     * most look and feels begin a drag-and-drop operation
     * when the user presses the mouse button over the preview panel.
     * Some look and feels might not support automatic drag and drop;
     * they will ignore this property.  You can work around such
     * look and feels by modifying the component
     * to directly call the <code>exportAsDrag</code> method of a
     * <code>TransferHandler</code>.
     *
     * @param b the value to set the <code>dragEnabled</code> property to
     * @exception HeadlessException if
     *            <code>b</code> is <code>true</code> and
     *            <code>GraphicsEnvironment.isHeadless()</code>
     *            returns <code>true</code>
     *
     * @since 1.4
     *
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see #getDragEnabled
     * @see #setTransferHandler
     * @see TransferHandler
     *
     * @beaninfo
     *  description: Determines whether automatic drag handling is enabled.
     *        bound: false
     */
    public void setDragEnabled(boolean b) {
        if (b && GraphicsEnvironment.isHeadless()) {
            throw new HeadlessException();
        }
        dragEnabled = b;
    }

    
Gets the value of the dragEnabled property.

See Also:
Returns: the value of the dragEnabled property
Since:1.4
/**
     * Gets the value of the <code>dragEnabled</code> property.
     *
     * @return  the value of the <code>dragEnabled</code> property
     * @see #setDragEnabled
     * @since 1.4
     */
    public boolean getDragEnabled() {
        return dragEnabled;
    }

    
Sets the current preview panel.
This will fire a PropertyChangeEvent for the property
named "previewPanel".

Params:
  • preview – the JComponent which displays the current color
See Also:
@beaninfo
      bound: true
     hidden: true
description: The UI component which displays the current color.
/**
     * Sets the current preview panel.
     * This will fire a <code>PropertyChangeEvent</code> for the property
     * named "previewPanel".
     *
     * @param preview the <code>JComponent</code> which displays the current color
     * @see JComponent#addPropertyChangeListener
     *
     * @beaninfo
     *       bound: true
     *      hidden: true
     * description: The UI component which displays the current color.
     */
    public void setPreviewPanel(JComponent preview) {

        if (previewPanel != preview) {
            JComponent oldPreview = previewPanel;
            previewPanel = preview;
            firePropertyChange(JColorChooser.PREVIEW_PANEL_PROPERTY, oldPreview, preview);
        }
    }

    
Returns the preview panel that shows a chosen color.

Returns:a JComponent object -- the preview panel
/**
     * Returns the preview panel that shows a chosen color.
     *
     * @return a <code>JComponent</code> object -- the preview panel
     */
    public JComponent getPreviewPanel() {
        return previewPanel;
    }

    
Adds a color chooser panel to the color chooser.

Params:
  • panel – the AbstractColorChooserPanel to be added
/**
     * Adds a color chooser panel to the color chooser.
     *
     * @param panel the <code>AbstractColorChooserPanel</code> to be added
     */
    public void addChooserPanel( AbstractColorChooserPanel panel ) {
        AbstractColorChooserPanel[] oldPanels = getChooserPanels();
        AbstractColorChooserPanel[] newPanels = new AbstractColorChooserPanel[oldPanels.length+1];
        System.arraycopy(oldPanels, 0, newPanels, 0, oldPanels.length);
        newPanels[newPanels.length-1] = panel;
        setChooserPanels(newPanels);
    }

    
Removes the Color Panel specified.

Params:
  • panel –   a string that specifies the panel to be removed
Throws:
Returns:the color panel
/**
     * Removes the Color Panel specified.
     *
     * @param panel   a string that specifies the panel to be removed
     * @return the color panel
     * @exception IllegalArgumentException if panel is not in list of
     *                  known chooser panels
     */
    public AbstractColorChooserPanel removeChooserPanel( AbstractColorChooserPanel panel ) {


        int containedAt = -1;

        for (int i = 0; i < chooserPanels.length; i++) {
            if (chooserPanels[i] == panel) {
                containedAt = i;
                break;
            }
        }
        if (containedAt == -1) {
            throw new IllegalArgumentException("chooser panel not in this chooser");
        }

        AbstractColorChooserPanel[] newArray = new AbstractColorChooserPanel[chooserPanels.length-1];

        if (containedAt == chooserPanels.length-1) {  // at end
            System.arraycopy(chooserPanels, 0, newArray, 0, newArray.length);
        }
        else if (containedAt == 0) {  // at start
            System.arraycopy(chooserPanels, 1, newArray, 0, newArray.length);
        }
        else {  // in middle
            System.arraycopy(chooserPanels, 0, newArray, 0, containedAt);
            System.arraycopy(chooserPanels, containedAt+1,
                             newArray, containedAt, (chooserPanels.length - containedAt - 1));
        }

        setChooserPanels(newArray);

        return panel;
    }


    
Specifies the Color Panels used to choose a color value.

Params:
  • panels –  an array of AbstractColorChooserPanel
         objects
@beaninfo
      bound: true
     hidden: true
description: An array of different chooser types.
/**
     * Specifies the Color Panels used to choose a color value.
     *
     * @param panels  an array of <code>AbstractColorChooserPanel</code>
     *          objects
     *
     * @beaninfo
     *       bound: true
     *      hidden: true
     * description: An array of different chooser types.
     */
    public void setChooserPanels( AbstractColorChooserPanel[] panels) {
        AbstractColorChooserPanel[] oldValue = chooserPanels;
        chooserPanels = panels;
        firePropertyChange(CHOOSER_PANELS_PROPERTY, oldValue, panels);
    }

    
Returns the specified color panels.

Returns:an array of AbstractColorChooserPanel objects
/**
     * Returns the specified color panels.
     *
     * @return an array of <code>AbstractColorChooserPanel</code> objects
     */
    public AbstractColorChooserPanel[] getChooserPanels() {
        return chooserPanels;
    }

    
Returns the data model that handles color selections.

Returns:a ColorSelectionModel object
/**
     * Returns the data model that handles color selections.
     *
     * @return a <code>ColorSelectionModel</code> object
     */
    public ColorSelectionModel getSelectionModel() {
        return selectionModel;
    }


    
Sets the model containing the selected color.

Params:
  • newModel –   the new ColorSelectionModel object
@beaninfo
      bound: true
     hidden: true
description: The model which contains the currently selected color.
/**
     * Sets the model containing the selected color.
     *
     * @param newModel   the new <code>ColorSelectionModel</code> object
     *
     * @beaninfo
     *       bound: true
     *      hidden: true
     * description: The model which contains the currently selected color.
     */
    public void setSelectionModel(ColorSelectionModel newModel ) {
        ColorSelectionModel oldModel = selectionModel;
        selectionModel = newModel;
        firePropertyChange(JColorChooser.SELECTION_MODEL_PROPERTY, oldModel, newModel);
    }


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

/**
     * See <code>readObject</code> and <code>writeObject</code> in
     * <code>JComponent</code> 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);
            }
        }
    }


    
Returns a string representation of this JColorChooser.
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 JColorChooser
/**
     * Returns a string representation of this <code>JColorChooser</code>.
     * 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 <code>JColorChooser</code>
     */
    protected String paramString() {
        StringBuffer chooserPanelsString = new StringBuffer("");
        for (int i=0; i<chooserPanels.length; i++) {
            chooserPanelsString.append("[" + chooserPanels[i].toString()
                                       + "]");
        }
        String previewPanelString = (previewPanel != null ?
                                     previewPanel.toString() : "");

        return super.paramString() +
        ",chooserPanels=" + chooserPanelsString.toString() +
        ",previewPanel=" + previewPanelString;
    }

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

    protected AccessibleContext accessibleContext = null;

    
Gets the AccessibleContext associated with this JColorChooser.
For color choosers, the AccessibleContext takes the form of an
AccessibleJColorChooser.
A new AccessibleJColorChooser instance is created if necessary.

Returns:an AccessibleJColorChooser that serves as the
        AccessibleContext of this JColorChooser
/**
     * Gets the AccessibleContext associated with this JColorChooser.
     * For color choosers, the AccessibleContext takes the form of an
     * AccessibleJColorChooser.
     * A new AccessibleJColorChooser instance is created if necessary.
     *
     * @return an AccessibleJColorChooser that serves as the
     *         AccessibleContext of this JColorChooser
     */
    public AccessibleContext getAccessibleContext() {
        if (accessibleContext == null) {
            accessibleContext = new AccessibleJColorChooser();
        }
        return accessibleContext;
    }

    
This class implements accessibility support for the
JColorChooser class.  It provides an implementation of the
Java Accessibility API appropriate to color chooser user-interface
elements.

/**
     * This class implements accessibility support for the
     * <code>JColorChooser</code> class.  It provides an implementation of the
     * Java Accessibility API appropriate to color chooser user-interface
     * elements.
     */
    protected class AccessibleJColorChooser extends AccessibleJComponent {

        
Get the role of this object.

See Also:
Returns:an instance of AccessibleRole describing the role of the
object
/**
         * Get the role of this object.
         *
         * @return an instance of AccessibleRole describing the role of the
         * object
         * @see AccessibleRole
         */
        public AccessibleRole getAccessibleRole() {
            return AccessibleRole.COLOR_CHOOSER;
        }

    } // inner class AccessibleJColorChooser
}


/*
 * Class which builds a color chooser dialog consisting of
 * a JColorChooser with "Ok", "Cancel", and "Reset" buttons.
 *
 * Note: This needs to be fixed to deal with localization!
 */
class ColorChooserDialog extends JDialog {
    private Color initialColor;
    private JColorChooser chooserPane;
    private JButton cancelButton;

    public ColorChooserDialog(Dialog owner, String title, boolean modal,
        Component c, JColorChooser chooserPane,
        ActionListener okListener, ActionListener cancelListener)
        throws HeadlessException {
        super(owner, title, modal);
        initColorChooserDialog(c, chooserPane, okListener, cancelListener);
    }

    public ColorChooserDialog(Frame owner, String title, boolean modal,
        Component c, JColorChooser chooserPane,
        ActionListener okListener, ActionListener cancelListener)
        throws HeadlessException {
        super(owner, title, modal);
        initColorChooserDialog(c, chooserPane, okListener, cancelListener);
    }

    protected void initColorChooserDialog(Component c, JColorChooser chooserPane,
        ActionListener okListener, ActionListener cancelListener) {
        //setResizable(false);

        this.chooserPane = chooserPane;

        String okString = UIManager.getString("ColorChooser.okText");
        String cancelString = UIManager.getString("ColorChooser.cancelText");
        String resetString = UIManager.getString("ColorChooser.resetText");

        Container contentPane = getContentPane();
        contentPane.setLayout(new BorderLayout());
        contentPane.add(chooserPane, BorderLayout.CENTER);

        /*
         * Create Lower button panel
         */
        JPanel buttonPane = new JPanel();
        buttonPane.setLayout(new FlowLayout(FlowLayout.CENTER));
        JButton okButton = new JButton(okString);
        getRootPane().setDefaultButton(okButton);
        okButton.setActionCommand("OK");
        okButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                hide();
            }
        });
        if (okListener != null) {
            okButton.addActionListener(okListener);
        }
        buttonPane.add(okButton);

        cancelButton = new JButton(cancelString);

        // The following few lines are used to register esc to close the dialog
        Action cancelKeyAction = new AbstractAction() {
            public void actionPerformed(ActionEvent e) {
                ((AbstractButton)e.getSource()).fireActionPerformed(e);
            }
        };
        KeyStroke cancelKeyStroke = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
        InputMap inputMap = cancelButton.getInputMap(JComponent.
                                                     WHEN_IN_FOCUSED_WINDOW);
        ActionMap actionMap = cancelButton.getActionMap();
        if (inputMap != null && actionMap != null) {
            inputMap.put(cancelKeyStroke, "cancel");
            actionMap.put("cancel", cancelKeyAction);
        }
        // end esc handling

        cancelButton.setActionCommand("cancel");
        cancelButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                hide();
            }
        });
        if (cancelListener != null) {
            cancelButton.addActionListener(cancelListener);
        }
        buttonPane.add(cancelButton);

        JButton resetButton = new JButton(resetString);
        resetButton.addActionListener(new ActionListener() {
           public void actionPerformed(ActionEvent e) {
               reset();
           }
        });
        int mnemonic = SwingUtilities2.getUIDefaultsInt("ColorChooser.resetMnemonic", -1);
        if (mnemonic != -1) {
            resetButton.setMnemonic(mnemonic);
        }
        buttonPane.add(resetButton);
        contentPane.add(buttonPane, BorderLayout.SOUTH);

        if (JDialog.isDefaultLookAndFeelDecorated()) {
            boolean supportsWindowDecorations =
            UIManager.getLookAndFeel().getSupportsWindowDecorations();
            if (supportsWindowDecorations) {
                getRootPane().setWindowDecorationStyle(JRootPane.COLOR_CHOOSER_DIALOG);
            }
        }
        applyComponentOrientation(((c == null) ? getRootPane() : c).getComponentOrientation());

        pack();
        setLocationRelativeTo(c);

        this.addWindowListener(new Closer());
    }

    public void show() {
        initialColor = chooserPane.getColor();
        super.show();
    }

    public void reset() {
        chooserPane.setColor(initialColor);
    }

    class Closer extends WindowAdapter implements Serializable{
        public void windowClosing(WindowEvent e) {
            cancelButton.doClick(0);
            Window w = e.getWindow();
            w.hide();
        }
    }

    static class DisposeOnClose extends ComponentAdapter implements Serializable{
        public void componentHidden(ComponentEvent e) {
            Window w = (Window)e.getComponent();
            w.dispose();
        }
    }

}

class ColorTracker implements ActionListener, Serializable {
    JColorChooser chooser;
    Color color;

    public ColorTracker(JColorChooser c) {
        chooser = c;
    }

    public void actionPerformed(ActionEvent e) {
        color = chooser.getColor();
    }

    public Color getColor() {
        return color;
    }
}