https://openjdk.java.net/ 
/*
 * Copyright (c) 1997, 2013, 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
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package javax.swing;

import java.awt.*;
import java.awt.event.*;
import javax.accessibility.*;


The main class for creating a dialog window. You can use this class to create a custom dialog, or invoke the many class methods in JOptionPane to create a variety of standard dialogs. For information about creating dialogs, see The Java Tutorial section
How
to Make Dialogs.

 The JDialog component contains a JRootPane as its only child. The contentPane should be the parent of any children of the JDialog. As a convenience, the add, remove, and setLayout methods of this class are overridden, so that they delegate calls to the corresponding methods of the ContentPane. For example, you can add a child component to a dialog as follows: 
      dialog.add(child);

 And the child will be added to the contentPane. The contentPane is always non-null. Attempting to set it to null generates an exception. The default contentPane has a BorderLayout manager set on it. Refer to RootPaneContainer for details on adding, removing and setting the LayoutManager of a JDialog. 
 Please see the JRootPane documentation for a complete description of the contentPane, glassPane, and layeredPane components. 
 In a multi-screen environment, you can create a JDialog on a different screen device than its owner. See Frame for more information. 

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:David Kloba, James Gosling, Scott Violet
See Also:
@beaninfo
     attribute: isContainer true
     attribute: containerDelegate getContentPane
   description: A toplevel window for creating dialog boxes.
/**
 * The main class for creating a dialog window. You can use this class
 * to create a custom dialog, or invoke the many class methods
 * in {@link JOptionPane} to create a variety of standard dialogs.
 * For information about creating dialogs, see
 * <em>The Java Tutorial</em> section
 * <a
 href="https://docs.oracle.com/javase/tutorial/uiswing/components/dialog.html">How
 * to Make Dialogs</a>.
 *
 * <p>
 *
 * The {@code JDialog} component contains a {@code JRootPane}
 * as its only child.
 * The {@code contentPane} should be the parent of any children of the
 * {@code JDialog}.
 * As a convenience, the {@code add}, {@code remove}, and {@code setLayout}
 * methods of this class are overridden, so that they delegate calls
 * to the corresponding methods of the {@code ContentPane}.
 * For example, you can add a child component to a dialog as follows:
 * <pre>
 *       dialog.add(child);
 * </pre>
 * And the child will be added to the contentPane.
 * The {@code contentPane} is always non-{@code null}.
 * Attempting to set it to {@code null} generates an exception.
 * The default {@code contentPane} has a {@code BorderLayout}
 * manager set on it.
 * Refer to {@link javax.swing.RootPaneContainer}
 * for details on adding, removing and setting the {@code LayoutManager}
 * of a {@code JDialog}.
 * <p>
 * Please see the {@code JRootPane} documentation for a complete
 * description of the {@code contentPane}, {@code glassPane},
 * and {@code layeredPane} components.
 * <p>
 * In a multi-screen environment, you can create a {@code JDialog}
 * on a different screen device than its owner.  See {@link java.awt.Frame} for
 * more information.
 * <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} package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 * @see JOptionPane
 * @see JRootPane
 * @see javax.swing.RootPaneContainer
 *
 * @beaninfo
 *      attribute: isContainer true
 *      attribute: containerDelegate getContentPane
 *    description: A toplevel window for creating dialog boxes.
 *
 * @author David Kloba
 * @author James Gosling
 * @author Scott Violet
 */
public class JDialog extends Dialog implements WindowConstants,
                                               Accessible,
                                               RootPaneContainer,
                               TransferHandler.HasGetTransferHandler
{
    
Key into the AppContext, used to check if should provide decorations
by default.

/**
     * Key into the AppContext, used to check if should provide decorations
     * by default.
     */
    private static final Object defaultLookAndFeelDecoratedKey =
            new StringBuffer("JDialog.defaultLookAndFeelDecorated");

    private int defaultCloseOperation = HIDE_ON_CLOSE;

    
See Also:
/**
     * @see #getRootPane
     * @see #setRootPane
     */
    protected JRootPane rootPane;

    
If true then calls to add and setLayout will be forwarded to the contentPane. This is initially false, but is set to true when the JDialog is constructed. 
See Also:
/**
     * If true then calls to {@code add} and {@code setLayout}
     * will be forwarded to the {@code contentPane}. This is initially
     * false, but is set to true when the {@code JDialog} is constructed.
     *
     * @see #isRootPaneCheckingEnabled
     * @see #setRootPaneCheckingEnabled
     * @see javax.swing.RootPaneContainer
     */
    protected boolean rootPaneCheckingEnabled = false;

    
The TransferHandler for this dialog. 
/**
     * The {@code TransferHandler} for this dialog.
     */
    private TransferHandler transferHandler;

    
Creates a modeless dialog without a title and without a specified Frame owner. A shared, hidden frame will be set as the owner of the dialog. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
 NOTE: This constructor does not allow you to create an unowned JDialog. To create an unowned JDialog you must use either the JDialog(Window) or JDialog(Dialog) constructor with an argument of null. 
Throws:
See Also:
/**
     * Creates a modeless dialog without a title and without a specified
     * {@code Frame} owner.  A shared, hidden frame will be
     * set as the owner of the dialog.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     * <p>
     * NOTE: This constructor does not allow you to create an unowned
     * {@code JDialog}. To create an unowned {@code JDialog}
     * you must use either the {@code JDialog(Window)} or
     * {@code JDialog(Dialog)} constructor with an argument of
     * {@code null}.
     *
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog() {
        this((Frame)null, false);
    }

    
Creates a modeless dialog with the specified Frame as its owner and an empty title. If owner is null, a shared, hidden frame will be set as the owner of the dialog. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
 NOTE: This constructor does not allow you to create an unowned JDialog. To create an unowned JDialog you must use either the JDialog(Window) or JDialog(Dialog) constructor with an argument of null. 
Params:
  • owner – the Frame from which the dialog is displayed
Throws:
See Also:
/**
     * Creates a modeless dialog with the specified {@code Frame}
     * as its owner and an empty title. If {@code owner}
     * is {@code null}, a shared, hidden frame will be set as the
     * owner of the dialog.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     * <p>
     * NOTE: This constructor does not allow you to create an unowned
     * {@code JDialog}. To create an unowned {@code JDialog}
     * you must use either the {@code JDialog(Window)} or
     * {@code JDialog(Dialog)} constructor with an argument of
     * {@code null}.
     *
     * @param owner the {@code Frame} from which the dialog is displayed
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Frame owner) {
        this(owner, false);
    }

    
Creates a dialog with an empty title and the specified modality and Frame as its owner. If owner is null, a shared, hidden frame will be set as the owner of the dialog. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
 NOTE: This constructor does not allow you to create an unowned JDialog. To create an unowned JDialog you must use either the JDialog(Window) or JDialog(Dialog) constructor with an argument of null. 
Params:
  • owner – the Frame from which the dialog is displayed
  • modal – specifies whether dialog blocks user input to other top-level windows when shown. If true, the modality type property is set to DEFAULT_MODALITY_TYPE, otherwise the dialog is modeless.
Throws:
See Also:
/**
     * Creates a dialog with an empty title and the specified modality and
     * {@code Frame} as its owner. If {@code owner} is {@code null},
     * a shared, hidden frame will be set as the owner of the dialog.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     * <p>
     * NOTE: This constructor does not allow you to create an unowned
     * {@code JDialog}. To create an unowned {@code JDialog}
     * you must use either the {@code JDialog(Window)} or
     * {@code JDialog(Dialog)} constructor with an argument of
     * {@code null}.
     *
     * @param owner the {@code Frame} from which the dialog is displayed
     * @param modal specifies whether dialog blocks user input to other top-level
     *     windows when shown. If {@code true}, the modality type property is set to
     *     {@code DEFAULT_MODALITY_TYPE}, otherwise the dialog is modeless.
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Frame owner, boolean modal) {
        this(owner, "", modal);
    }

    
Creates a modeless dialog with the specified title and with the specified owner frame. If owner is null, a shared, hidden frame will be set as the owner of the dialog. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
 NOTE: This constructor does not allow you to create an unowned JDialog. To create an unowned JDialog you must use either the JDialog(Window) or JDialog(Dialog) constructor with an argument of null. 
Params:
  • owner – the Frame from which the dialog is displayed
  • title –  the String to display in the dialog's title bar
Throws:
See Also:
/**
     * Creates a modeless dialog with the specified title and
     * with the specified owner frame.  If {@code owner}
     * is {@code null}, a shared, hidden frame will be set as the
     * owner of the dialog.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     * <p>
     * NOTE: This constructor does not allow you to create an unowned
     * {@code JDialog}. To create an unowned {@code JDialog}
     * you must use either the {@code JDialog(Window)} or
     * {@code JDialog(Dialog)} constructor with an argument of
     * {@code null}.
     *
     * @param owner the {@code Frame} from which the dialog is displayed
     * @param title  the {@code String} to display in the dialog's
     *                  title bar
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Frame owner, String title) {
        this(owner, title, false);
    }

    
Creates a dialog with the specified title, owner Frame and modality. If owner is null, a shared, hidden frame will be set as the owner of this dialog. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
 NOTE: Any popup components (JComboBox, JPopupMenu, JMenuBar) created within a modal dialog will be forced to be lightweight. 
 NOTE: This constructor does not allow you to create an unowned JDialog. To create an unowned JDialog you must use either the JDialog(Window) or JDialog(Dialog) constructor with an argument of null. 
Params:
  • owner – the Frame from which the dialog is displayed
  • title –  the String to display in the dialog's title bar
  • modal – specifies whether dialog blocks user input to other top-level windows when shown. If true, the modality type property is set to DEFAULT_MODALITY_TYPE otherwise the dialog is modeless
Throws:
See Also:
/**
     * Creates a dialog with the specified title, owner {@code Frame}
     * and modality. If {@code owner} is {@code null},
     * a shared, hidden frame will be set as the owner of this dialog.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     * <p>
     * NOTE: Any popup components ({@code JComboBox},
     * {@code JPopupMenu}, {@code JMenuBar})
     * created within a modal dialog will be forced to be lightweight.
     * <p>
     * NOTE: This constructor does not allow you to create an unowned
     * {@code JDialog}. To create an unowned {@code JDialog}
     * you must use either the {@code JDialog(Window)} or
     * {@code JDialog(Dialog)} constructor with an argument of
     * {@code null}.
     *
     * @param owner the {@code Frame} from which the dialog is displayed
     * @param title  the {@code String} to display in the dialog's
     *     title bar
     * @param modal specifies whether dialog blocks user input to other top-level
     *     windows when shown. If {@code true}, the modality type property is set to
     *     {@code DEFAULT_MODALITY_TYPE} otherwise the dialog is modeless
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     *
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog.ModalityType#MODELESS
     * @see java.awt.Dialog#DEFAULT_MODALITY_TYPE
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Frame owner, String title, boolean modal) {
        super(owner == null? SwingUtilities.getSharedOwnerFrame() : owner,
              title, modal);
        if (owner == null) {
            WindowListener ownerShutdownListener =
                    SwingUtilities.getSharedOwnerFrameShutdownListener();
            addWindowListener(ownerShutdownListener);
        }
        dialogInit();
    }

    
Creates a dialog with the specified title, owner Frame, modality and GraphicsConfiguration. If owner is null, a shared, hidden frame will be set as the owner of this dialog. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
 NOTE: Any popup components (JComboBox, JPopupMenu, JMenuBar) created within a modal dialog will be forced to be lightweight. 
 NOTE: This constructor does not allow you to create an unowned JDialog. To create an unowned JDialog you must use either the JDialog(Window) or JDialog(Dialog) constructor with an argument of null. 
Params:
  • owner – the Frame from which the dialog is displayed
  • title –  the String to display in the dialog's title bar
  • modal – specifies whether dialog blocks user input to other top-level windows when shown. If true, the modality type property is set to DEFAULT_MODALITY_TYPE, otherwise the dialog is modeless.
  • gc – the GraphicsConfiguration of the target screen device; if null, the default system GraphicsConfiguration is assumed
Throws:
See Also:
Since:1.4
/**
     * Creates a dialog with the specified title,
     * owner {@code Frame}, modality and {@code GraphicsConfiguration}.
     * If {@code owner} is {@code null},
     * a shared, hidden frame will be set as the owner of this dialog.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     * <p>
     * NOTE: Any popup components ({@code JComboBox},
     * {@code JPopupMenu}, {@code JMenuBar})
     * created within a modal dialog will be forced to be lightweight.
     * <p>
     * NOTE: This constructor does not allow you to create an unowned
     * {@code JDialog}. To create an unowned {@code JDialog}
     * you must use either the {@code JDialog(Window)} or
     * {@code JDialog(Dialog)} constructor with an argument of
     * {@code null}.
     *
     * @param owner the {@code Frame} from which the dialog is displayed
     * @param title  the {@code String} to display in the dialog's
     *     title bar
     * @param modal specifies whether dialog blocks user input to other top-level
     *     windows when shown. If {@code true}, the modality type property is set to
     *     {@code DEFAULT_MODALITY_TYPE}, otherwise the dialog is modeless.
     * @param gc the {@code GraphicsConfiguration} of the target screen device;
     *     if {@code null}, the default system {@code GraphicsConfiguration}
     *     is assumed
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog.ModalityType#MODELESS
     * @see java.awt.Dialog#DEFAULT_MODALITY_TYPE
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     * @since 1.4
     */
    public JDialog(Frame owner, String title, boolean modal,
                   GraphicsConfiguration gc) {
        super(owner == null? SwingUtilities.getSharedOwnerFrame() : owner,
              title, modal, gc);
        if (owner == null) {
            WindowListener ownerShutdownListener =
                    SwingUtilities.getSharedOwnerFrameShutdownListener();
            addWindowListener(ownerShutdownListener);
        }
        dialogInit();
    }

    
Creates a modeless dialog with the specified Dialog as its owner and an empty title. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the owner Dialog from which the dialog is displayed or null if this dialog has no owner
Throws:
See Also:
/**
     * Creates a modeless dialog with the specified {@code Dialog}
     * as its owner and an empty title.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the owner {@code Dialog} from which the dialog is displayed
     *     or {@code null} if this dialog has no owner
     * @throws HeadlessException {@code if GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Dialog owner) {
        this(owner, false);
    }

    
Creates a dialog with an empty title and the specified modality and Dialog as its owner. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the owner Dialog from which the dialog is displayed or null if this dialog has no owner
  • modal – specifies whether dialog blocks user input to other top-level windows when shown. If true, the modality type property is set to DEFAULT_MODALITY_TYPE, otherwise the dialog is modeless.
Throws:
See Also:
/**
     * Creates a dialog with an empty title and the specified modality and
     * {@code Dialog} as its owner.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the owner {@code Dialog} from which the dialog is displayed
     *     or {@code null} if this dialog has no owner
     * @param modal specifies whether dialog blocks user input to other top-level
     *     windows when shown. If {@code true}, the modality type property is set to
     *     {@code DEFAULT_MODALITY_TYPE}, otherwise the dialog is modeless.
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog.ModalityType#MODELESS
     * @see java.awt.Dialog#DEFAULT_MODALITY_TYPE
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Dialog owner, boolean modal) {
        this(owner, "", modal);
    }

    
Creates a modeless dialog with the specified title and
with the specified owner dialog.

 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the owner Dialog from which the dialog is displayed or null if this dialog has no owner
  • title –  the String to display in the dialog's title bar
Throws:
See Also:
/**
     * Creates a modeless dialog with the specified title and
     * with the specified owner dialog.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the owner {@code Dialog} from which the dialog is displayed
     *     or {@code null} if this dialog has no owner
     * @param title  the {@code String} to display in the dialog's
     *                  title bar
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Dialog owner, String title) {
        this(owner, title, false);
    }

    
Creates a dialog with the specified title, modality and the specified owner Dialog. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the owner Dialog from which the dialog is displayed or null if this dialog has no owner
  • title –  the String to display in the dialog's title bar
  • modal – specifies whether dialog blocks user input to other top-level windows when shown. If true, the modality type property is set to DEFAULT_MODALITY_TYPE, otherwise the dialog is modeless
Throws:
See Also:
/**
     * Creates a dialog with the specified title, modality
     * and the specified owner {@code Dialog}.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the owner {@code Dialog} from which the dialog is displayed
     *     or {@code null} if this dialog has no owner
     * @param title  the {@code String} to display in the dialog's
     *     title bar
     * @param modal specifies whether dialog blocks user input to other top-level
     *     windows when shown. If {@code true}, the modality type property is set to
     *     {@code DEFAULT_MODALITY_TYPE}, otherwise the dialog is modeless
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog.ModalityType#MODELESS
     * @see java.awt.Dialog#DEFAULT_MODALITY_TYPE
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     */
    public JDialog(Dialog owner, String title, boolean modal) {
        super(owner, title, modal);
        dialogInit();
    }

    
Creates a dialog with the specified title, owner Dialog, modality and GraphicsConfiguration. 
 NOTE: Any popup components (JComboBox, JPopupMenu, JMenuBar) created within a modal dialog will be forced to be lightweight. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the owner Dialog from which the dialog is displayed or null if this dialog has no owner
  • title –  the String to display in the dialog's title bar
  • modal – specifies whether dialog blocks user input to other top-level windows when shown. If true, the modality type property is set to DEFAULT_MODALITY_TYPE, otherwise the dialog is modeless
  • gc – the GraphicsConfiguration of the target screen device; if null, the default system GraphicsConfiguration is assumed
Throws:
See Also:
Since:1.4
/**
     * Creates a dialog with the specified title, owner {@code Dialog},
     * modality and {@code GraphicsConfiguration}.
     *
     * <p>
     * NOTE: Any popup components ({@code JComboBox},
     * {@code JPopupMenu}, {@code JMenuBar})
     * created within a modal dialog will be forced to be lightweight.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the owner {@code Dialog} from which the dialog is displayed
     *     or {@code null} if this dialog has no owner
     * @param title  the {@code String} to display in the dialog's
     *     title bar
     * @param modal specifies whether dialog blocks user input to other top-level
     *     windows when shown. If {@code true}, the modality type property is set to
     *     {@code DEFAULT_MODALITY_TYPE}, otherwise the dialog is modeless
     * @param gc the {@code GraphicsConfiguration} of the target screen device;
     *     if {@code null}, the default system {@code GraphicsConfiguration}
     *     is assumed
     * @throws HeadlessException if {@code GraphicsEnvironment.isHeadless()}
     *     returns {@code true}.
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog.ModalityType#MODELESS
     * @see java.awt.Dialog#DEFAULT_MODALITY_TYPE
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     * @since 1.4
     */
    public JDialog(Dialog owner, String title, boolean modal,
                   GraphicsConfiguration gc) {
        super(owner, title, modal, gc);
        dialogInit();
    }

    
Creates a modeless dialog with the specified Window as its owner and an empty title. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the Window from which the dialog is displayed or null if this dialog has no owner
Throws:
See Also:
Since:1.6
/**
     * Creates a modeless dialog with the specified {@code Window}
     * as its owner and an empty title.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the {@code Window} from which the dialog is displayed or
     *     {@code null} if this dialog has no owner
     *
     * @throws IllegalArgumentException
     *     if the {@code owner} is not an instance of {@link java.awt.Dialog Dialog}
     *     or {@link java.awt.Frame Frame}
     * @throws IllegalArgumentException
     *     if the {@code owner}'s {@code GraphicsConfiguration} is not from a screen device
     * @throws HeadlessException
     *     when {@code GraphicsEnvironment.isHeadless()} returns {@code true}
     *
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     *
     * @since 1.6
     */
    public JDialog(Window owner) {
        this(owner, Dialog.ModalityType.MODELESS);
    }

    
Creates a dialog with an empty title and the specified modality and Window as its owner. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the Window from which the dialog is displayed or null if this dialog has no owner
  • modalityType – specifies whether dialog blocks input to other windows when shown. null value and unsupported modality types are equivalent to MODELESS
Throws:
See Also:
Since:1.6
/**
     * Creates a dialog with an empty title and the specified modality and
     * {@code Window} as its owner.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the {@code Window} from which the dialog is displayed or
     *     {@code null} if this dialog has no owner
     * @param modalityType specifies whether dialog blocks input to other
     *     windows when shown. {@code null} value and unsupported modality
     *     types are equivalent to {@code MODELESS}
     *
     * @throws IllegalArgumentException
     *     if the {@code owner} is not an instance of {@link java.awt.Dialog Dialog}
     *     or {@link java.awt.Frame Frame}
     * @throws IllegalArgumentException
     *     if the {@code owner}'s {@code GraphicsConfiguration} is not from a screen device
     * @throws HeadlessException
     *     when {@code GraphicsEnvironment.isHeadless()} returns {@code true}
     * @throws SecurityException
     *     if the calling thread does not have permission to create modal dialogs
     *     with the given {@code modalityType}
     *
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     *
     * @since 1.6
     */
    public JDialog(Window owner, ModalityType modalityType) {
        this(owner, "", modalityType);
    }

    
Creates a modeless dialog with the specified title and owner Window. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the Window from which the dialog is displayed or null if this dialog has no owner
  • title – the String to display in the dialog's title bar or null if the dialog has no title
Throws:
See Also:
Since:1.6
/**
     * Creates a modeless dialog with the specified title and owner
     * {@code Window}.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the {@code Window} from which the dialog is displayed or
     *     {@code null} if this dialog has no owner
     * @param title the {@code String} to display in the dialog's
     *     title bar or {@code null} if the dialog has no title
     *
     * @throws IllegalArgumentException
     *     if the {@code owner} is not an instance of {@link java.awt.Dialog Dialog}
     *     or {@link java.awt.Frame Frame}
     * @throws IllegalArgumentException
     *     if the {@code owner}'s {@code GraphicsConfiguration} is not from a screen device
     * @throws HeadlessException
     *     when {@code GraphicsEnvironment.isHeadless()} returns {@code true}
     *
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     *
     * @since 1.6
     */
    public JDialog(Window owner, String title) {
        this(owner, title, Dialog.ModalityType.MODELESS);
    }

    
Creates a dialog with the specified title, owner Window and modality. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the Window from which the dialog is displayed or null if this dialog has no owner
  • title – the String to display in the dialog's title bar or null if the dialog has no title
  • modalityType – specifies whether dialog blocks input to other windows when shown. null value and unsupported modality types are equivalent to MODELESS
Throws:
See Also:
Since:1.6
/**
     * Creates a dialog with the specified title, owner {@code Window} and
     * modality.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the {@code Window} from which the dialog is displayed or
     *     {@code null} if this dialog has no owner
     * @param title the {@code String} to display in the dialog's
     *     title bar or {@code null} if the dialog has no title
     * @param modalityType specifies whether dialog blocks input to other
     *     windows when shown. {@code null} value and unsupported modality
     *     types are equivalent to {@code MODELESS}
     *
     * @throws IllegalArgumentException
     *     if the {@code owner} is not an instance of {@link java.awt.Dialog Dialog}
     *     or {@link java.awt.Frame Frame}
     * @throws IllegalArgumentException
     *     if the {@code owner}'s {@code GraphicsConfiguration} is not from a screen device
     * @throws HeadlessException
     *     when {@code GraphicsEnvironment.isHeadless()} returns {@code true}
     * @throws SecurityException
     *     if the calling thread does not have permission to create modal dialogs
     *     with the given {@code modalityType}
     *
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     *
     * @since 1.6
     */
    public JDialog(Window owner, String title, Dialog.ModalityType modalityType) {
        super(owner, title, modalityType);
        dialogInit();
    }

    
Creates a dialog with the specified title, owner Window, modality and GraphicsConfiguration. 
 NOTE: Any popup components (JComboBox, JPopupMenu, JMenuBar) created within a modal dialog will be forced to be lightweight. 
 This constructor sets the component's locale property to the value returned by JComponent.getDefaultLocale. 
Params:
  • owner – the Window from which the dialog is displayed or null if this dialog has no owner
  • title – the String to display in the dialog's title bar or null if the dialog has no title
  • modalityType – specifies whether dialog blocks input to other windows when shown. null value and unsupported modality types are equivalent to MODELESS
  • gc – the GraphicsConfiguration of the target screen device; if null, the default system GraphicsConfiguration is assumed
Throws:
See Also:
Since:1.6
/**
     * Creates a dialog with the specified title, owner {@code Window},
     * modality and {@code GraphicsConfiguration}.
     * <p>
     * NOTE: Any popup components ({@code JComboBox},
     * {@code JPopupMenu}, {@code JMenuBar})
     * created within a modal dialog will be forced to be lightweight.
     * <p>
     * This constructor sets the component's locale property to the value
     * returned by {@code JComponent.getDefaultLocale}.
     *
     * @param owner the {@code Window} from which the dialog is displayed or
     *     {@code null} if this dialog has no owner
     * @param title the {@code String} to display in the dialog's
     *     title bar or {@code null} if the dialog has no title
     * @param modalityType specifies whether dialog blocks input to other
     *     windows when shown. {@code null} value and unsupported modality
     *     types are equivalent to {@code MODELESS}
     * @param gc the {@code GraphicsConfiguration} of the target screen device;
     *     if {@code null}, the default system {@code GraphicsConfiguration}
     *     is assumed
     * @throws IllegalArgumentException
     *     if the {@code owner} is not an instance of {@link java.awt.Dialog Dialog}
     *     or {@link java.awt.Frame Frame}
     * @throws IllegalArgumentException
     *     if the {@code owner}'s {@code GraphicsConfiguration} is not from a screen device
     * @throws HeadlessException
     *     when {@code GraphicsEnvironment.isHeadless()} returns {@code true}
     * @throws SecurityException
     *     if the calling thread does not have permission to create modal dialogs
     *     with the given {@code modalityType}
     *
     * @see java.awt.Dialog.ModalityType
     * @see java.awt.Dialog#setModal
     * @see java.awt.Dialog#setModalityType
     * @see java.awt.GraphicsEnvironment#isHeadless
     * @see JComponent#getDefaultLocale
     *
     * @since 1.6
     */
    public JDialog(Window owner, String title, Dialog.ModalityType modalityType,
                   GraphicsConfiguration gc) {
        super(owner, title, modalityType, gc);
        dialogInit();
    }

    
Called by the constructors to init the JDialog properly. 
/**
     * Called by the constructors to init the {@code JDialog} properly.
     */
    protected void dialogInit() {
        enableEvents(AWTEvent.KEY_EVENT_MASK | AWTEvent.WINDOW_EVENT_MASK);
        setLocale( JComponent.getDefaultLocale() );
        setRootPane(createRootPane());
        setBackground(UIManager.getColor("control"));
        setRootPaneCheckingEnabled(true);
        if (JDialog.isDefaultLookAndFeelDecorated()) {
            boolean supportsWindowDecorations =
            UIManager.getLookAndFeel().getSupportsWindowDecorations();
            if (supportsWindowDecorations) {
                setUndecorated(true);
                getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
            }
        }
        sun.awt.SunToolkit.checkAndSetPolicy(this);
    }

    
Called by the constructor methods to create the default rootPane. 
/**
     * Called by the constructor methods to create the default
     * {@code rootPane}.
     */
    protected JRootPane createRootPane() {
        JRootPane rp = new JRootPane();
        // NOTE: this uses setOpaque vs LookAndFeel.installProperty as there
        // is NO reason for the RootPane not to be opaque. For painting to
        // work the contentPane must be opaque, therefor the RootPane can
        // also be opaque.
        rp.setOpaque(true);
        return rp;
    }

    
Handles window events depending on the state of the defaultCloseOperation property. 
See Also:
/**
     * Handles window events depending on the state of the
     * {@code defaultCloseOperation} property.
     *
     * @see #setDefaultCloseOperation
     */
    protected void processWindowEvent(WindowEvent e) {
        super.processWindowEvent(e);

        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
            switch(defaultCloseOperation) {
              case HIDE_ON_CLOSE:
                 setVisible(false);
                 break;
              case DISPOSE_ON_CLOSE:
                 dispose();
                 break;
              case DO_NOTHING_ON_CLOSE:
                 default:
                 break;
            }
        }
    }


    
Sets the operation that will happen by default when
the user initiates a "close" on this dialog.
You must specify one of the following choices:




    

  • DO_NOTHING_ON_CLOSE (defined in WindowConstants): Don't do anything; require the program to handle the operation in the windowClosing method of a registered WindowListener object. 
  • HIDE_ON_CLOSE (defined in WindowConstants): Automatically hide the dialog after invoking any registered WindowListener objects. 
  • DISPOSE_ON_CLOSE (defined in WindowConstants): Automatically hide and dispose the dialog after invoking any registered WindowListener objects. 


 The value is set to HIDE_ON_CLOSE by default. Changes to the value of this property cause the firing of a property change event, with property name "defaultCloseOperation". 

Note: When the last displayable window within the
Java virtual machine (VM) is disposed of, the VM may
terminate.  See 
AWT Threading Issues for more information.

Params:
  • operation – the operation which should be performed when the
       user closes the dialog
Throws:
See Also:
@beaninfo
  preferred: true
      bound: true
       enum: DO_NOTHING_ON_CLOSE WindowConstants.DO_NOTHING_ON_CLOSE
             HIDE_ON_CLOSE       WindowConstants.HIDE_ON_CLOSE
             DISPOSE_ON_CLOSE    WindowConstants.DISPOSE_ON_CLOSE
description: The dialog's default close operation.
/**
     * Sets the operation that will happen by default when
     * the user initiates a "close" on this dialog.
     * You must specify one of the following choices:
     * <br><br>
     * <ul>
     * <li>{@code DO_NOTHING_ON_CLOSE}
     * (defined in {@code WindowConstants}):
     * Don't do anything; require the
     * program to handle the operation in the {@code windowClosing}
     * method of a registered {@code WindowListener} object.
     *
     * <li>{@code HIDE_ON_CLOSE}
     * (defined in {@code WindowConstants}):
     * Automatically hide the dialog after
     * invoking any registered {@code WindowListener}
     * objects.
     *
     * <li>{@code DISPOSE_ON_CLOSE}
     * (defined in {@code WindowConstants}):
     * Automatically hide and dispose the
     * dialog after invoking any registered {@code WindowListener}
     * objects.
     * </ul>
     * <p>
     * The value is set to {@code HIDE_ON_CLOSE} by default. Changes
     * to the value of this property cause the firing of a property
     * change event, with property name "defaultCloseOperation".
     * <p>
     * <b>Note</b>: When the last displayable window within the
     * Java virtual machine (VM) is disposed of, the VM may
     * terminate.  See <a href="../../java/awt/doc-files/AWTThreadIssues.html">
     * AWT Threading Issues</a> for more information.
     *
     * @param operation the operation which should be performed when the
     *        user closes the dialog
     * @throws IllegalArgumentException if defaultCloseOperation value
     *         isn't one of the above valid values
     * @see #addWindowListener
     * @see #getDefaultCloseOperation
     * @see WindowConstants
     *
     * @beaninfo
     *   preferred: true
     *       bound: true
     *        enum: DO_NOTHING_ON_CLOSE WindowConstants.DO_NOTHING_ON_CLOSE
     *              HIDE_ON_CLOSE       WindowConstants.HIDE_ON_CLOSE
     *              DISPOSE_ON_CLOSE    WindowConstants.DISPOSE_ON_CLOSE
     * description: The dialog's default close operation.
     */
    public void setDefaultCloseOperation(int operation) {
        if (operation != DO_NOTHING_ON_CLOSE &&
            operation != HIDE_ON_CLOSE &&
            operation != DISPOSE_ON_CLOSE) {
            throw new IllegalArgumentException("defaultCloseOperation must be one of: DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE, or DISPOSE_ON_CLOSE");
        }

        int oldValue = this.defaultCloseOperation;
        this.defaultCloseOperation = operation;
        firePropertyChange("defaultCloseOperation", oldValue, operation);
    }

   
Returns the operation which occurs when the user
initiates a "close" on this dialog.

See Also:
Returns:an integer indicating the window-close operation
/**
    * Returns the operation which occurs when the user
    * initiates a "close" on this dialog.
    *
    * @return an integer indicating the window-close operation
    * @see #setDefaultCloseOperation
    */
    public int getDefaultCloseOperation() {
        return defaultCloseOperation;
    }

    
Sets the transferHandler property, which is a mechanism to support transfer of data into this component. Use null if the component does not support data transfer operations. 
 If the system property suppressSwingDropSupport is false (the default) and the current drop target on this component is either null or not a user-set drop target, this method will change the drop target as follows: If newHandler is null it will clear the drop target. If not null it will install a new DropTarget. 
 Note: When used with JDialog, TransferHandler only provides data import capability, as the data export related methods are currently typed to JComponent. 

Please see

How to Use Drag and Drop and Data Transfer, a section in
The Java Tutorial, for more information.

Params:
  • newHandler – the new TransferHandler
See Also:
Since:1.6
@beaninfo
       bound: true
      hidden: true
 description: Mechanism for transfer of data into the component
/**
     * Sets the {@code transferHandler} property, which is a mechanism to
     * support transfer of data into this component. Use {@code null}
     * if the component does not support data transfer operations.
     * <p>
     * If the system property {@code suppressSwingDropSupport} is {@code false}
     * (the default) and the current drop target on this component is either
     * {@code null} or not a user-set drop target, this method will change the
     * drop target as follows: If {@code newHandler} is {@code null} it will
     * clear the drop target. If not {@code null} it will install a new
     * {@code DropTarget}.
     * <p>
     * Note: When used with {@code JDialog}, {@code TransferHandler} only
     * provides data import capability, as the data export related methods
     * are currently typed to {@code JComponent}.
     * <p>
     * Please see
     * <a href="https://docs.oracle.com/javase/tutorial/uiswing/dnd/index.html">
     * How to Use Drag and Drop and Data Transfer</a>, a section in
     * <em>The Java Tutorial</em>, for more information.
     *
     * @param newHandler the new {@code TransferHandler}
     *
     * @see TransferHandler
     * @see #getTransferHandler
     * @see java.awt.Component#setDropTarget
     * @since 1.6
     *
     * @beaninfo
     *        bound: true
     *       hidden: true
     *  description: Mechanism for transfer of data into the component
     */
    public void setTransferHandler(TransferHandler newHandler) {
        TransferHandler oldHandler = transferHandler;
        transferHandler = newHandler;
        SwingUtilities.installSwingDropTargetAsNecessary(this, transferHandler);
        firePropertyChange("transferHandler", oldHandler, newHandler);
    }

    
Gets the transferHandler property. 
See Also:
Returns:the value of the transferHandler property
Since:1.6
/**
     * Gets the {@code transferHandler} property.
     *
     * @return the value of the {@code transferHandler} property
     *
     * @see TransferHandler
     * @see #setTransferHandler
     * @since 1.6
     */
    public TransferHandler getTransferHandler() {
        return transferHandler;
    }

    
Calls paint(g). This method was overridden to prevent an unnecessary call to clear the background. 
Params:
  • g –  the Graphics context in which to paint
/**
     * Calls {@code paint(g)}.  This method was overridden to
     * prevent an unnecessary call to clear the background.
     *
     * @param g  the {@code Graphics} context in which to paint
     */
    public void update(Graphics g) {
        paint(g);
    }

   
Sets the menubar for this dialog.

Params:
  • menu – the menubar being placed in the dialog
See Also:
@beaninfo
     hidden: true
description: The menubar for accessing pulldown menus from this dialog.
/**
    * Sets the menubar for this dialog.
    *
    * @param menu the menubar being placed in the dialog
    *
    * @see #getJMenuBar
    *
    * @beaninfo
    *      hidden: true
    * description: The menubar for accessing pulldown menus from this dialog.
    */
    public void setJMenuBar(JMenuBar menu) {
        getRootPane().setMenuBar(menu);
    }

   
Returns the menubar set on this dialog.

See Also:
  • setJMenuBar
/**
    * Returns the menubar set on this dialog.
    *
    * @see #setJMenuBar
    */
    public JMenuBar getJMenuBar() {
        return getRootPane().getMenuBar();
    }


    
Returns whether calls to add and setLayout are forwarded to the contentPane. 
See Also:
Returns:true if add and setLayout are forwarded; false otherwise
/**
     * Returns whether calls to {@code add} and
     * {@code setLayout} are forwarded to the {@code contentPane}.
     *
     * @return true if {@code add} and {@code setLayout}
     *         are forwarded; false otherwise
     *
     * @see #addImpl
     * @see #setLayout
     * @see #setRootPaneCheckingEnabled
     * @see javax.swing.RootPaneContainer
     */
    protected boolean isRootPaneCheckingEnabled() {
        return rootPaneCheckingEnabled;
    }


    
Sets whether calls to add and setLayout are forwarded to the contentPane. 
Params:
  • enabled –  true if add and setLayout are forwarded, false if they should operate directly on the JDialog.
See Also:
@beaninfo
     hidden: true
description: Whether the add and setLayout methods are forwarded
/**
     * Sets whether calls to {@code add} and
     * {@code setLayout} are forwarded to the {@code contentPane}.
     *
     * @param enabled  true if {@code add} and {@code setLayout}
     *        are forwarded, false if they should operate directly on the
     *        {@code JDialog}.
     *
     * @see #addImpl
     * @see #setLayout
     * @see #isRootPaneCheckingEnabled
     * @see javax.swing.RootPaneContainer
     * @beaninfo
     *      hidden: true
     * description: Whether the add and setLayout methods are forwarded
     */
    protected void setRootPaneCheckingEnabled(boolean enabled) {
        rootPaneCheckingEnabled = enabled;
    }

    
Adds the specified child Component. This method is overridden to conditionally forward calls to the contentPane. By default, children are added to the contentPane instead of the frame, refer to RootPaneContainer for details. 
Params:
  • comp – the component to be enhanced
  • constraints – the constraints to be respected
  • index – the index
Throws:
See Also:
/**
     * Adds the specified child {@code Component}.
     * This method is overridden to conditionally forward calls to the
     * {@code contentPane}.
     * By default, children are added to the {@code contentPane} instead
     * of the frame, refer to {@link javax.swing.RootPaneContainer} for
     * details.
     *
     * @param comp the component to be enhanced
     * @param constraints the constraints to be respected
     * @param index the index
     * @throws IllegalArgumentException if {@code index} is invalid
     * @throws IllegalArgumentException if adding the container's parent
     *                  to itself
     * @throws IllegalArgumentException if adding a window to a container
     *
     * @see #setRootPaneCheckingEnabled
     * @see javax.swing.RootPaneContainer
     */
    protected void addImpl(Component comp, Object constraints, int index)
    {
        if(isRootPaneCheckingEnabled()) {
            getContentPane().add(comp, constraints, index);
        }
        else {
            super.addImpl(comp, constraints, index);
        }
    }

    
Removes the specified component from the container. If comp is not the rootPane, this will forward the call to the contentPane. This will do nothing if comp is not a child of the JDialog or contentPane. 
Params:
  • comp – the component to be removed
Throws:
See Also:
/**
     * Removes the specified component from the container. If
     * {@code comp} is not the {@code rootPane}, this will forward
     * the call to the {@code contentPane}. This will do nothing if
     * {@code comp} is not a child of the {@code JDialog} or
     * {@code contentPane}.
     *
     * @param comp the component to be removed
     * @throws NullPointerException if {@code comp} is null
     * @see #add
     * @see javax.swing.RootPaneContainer
     */
    public void remove(Component comp) {
        if (comp == rootPane) {
            super.remove(comp);
        } else {
            getContentPane().remove(comp);
        }
    }


    
Sets the LayoutManager. Overridden to conditionally forward the call to the contentPane. Refer to RootPaneContainer for more information. 
Params:
  • manager – the LayoutManager
See Also:
/**
     * Sets the {@code LayoutManager}.
     * Overridden to conditionally forward the call to the
     * {@code contentPane}.
     * Refer to {@link javax.swing.RootPaneContainer} for
     * more information.
     *
     * @param manager the {@code LayoutManager}
     * @see #setRootPaneCheckingEnabled
     * @see javax.swing.RootPaneContainer
     */
    public void setLayout(LayoutManager manager) {
        if(isRootPaneCheckingEnabled()) {
            getContentPane().setLayout(manager);
        }
        else {
            super.setLayout(manager);
        }
    }


    
Returns the rootPane object for this dialog. 
See Also:
/**
     * Returns the {@code rootPane} object for this dialog.
     *
     * @see #setRootPane
     * @see RootPaneContainer#getRootPane
     */
    public JRootPane getRootPane() {
        return rootPane;
    }


    
Sets the rootPane property. This method is called by the constructor. 
Params:
  • root – the rootPane object for this dialog
See Also:
@beaninfo
  hidden: true
description: the RootPane object for this dialog.
/**
     * Sets the {@code rootPane} property.
     * This method is called by the constructor.
     *
     * @param root the {@code rootPane} object for this dialog
     *
     * @see #getRootPane
     *
     * @beaninfo
     *   hidden: true
     * description: the RootPane object for this dialog.
     */
    protected void setRootPane(JRootPane root) {
        if(rootPane != null) {
            remove(rootPane);
        }
        rootPane = root;
        if(rootPane != null) {
            boolean checkingEnabled = isRootPaneCheckingEnabled();
            try {
                setRootPaneCheckingEnabled(false);
                add(rootPane, BorderLayout.CENTER);
            }
            finally {
                setRootPaneCheckingEnabled(checkingEnabled);
            }
        }
    }


    
Returns the contentPane object for this dialog. 
See Also:
Returns:the contentPane property
/**
     * Returns the {@code contentPane} object for this dialog.
     *
     * @return the {@code contentPane} property
     *
     * @see #setContentPane
     * @see RootPaneContainer#getContentPane
     */
    public Container getContentPane() {
        return getRootPane().getContentPane();
    }


   
Sets the contentPane property. This method is called by the constructor. 
 Swing's painting architecture requires an opaque JComponent in the containment hierarchy. This is typically provided by the content pane. If you replace the content pane it is recommended you replace it with an opaque JComponent. 
Params:
  • contentPane – the contentPane object for this dialog
Throws:
See Also:
@beaninfo
    hidden: true
    description: The client area of the dialog where child
                 components are normally inserted.
/**
     * Sets the {@code contentPane} property.
     * This method is called by the constructor.
     * <p>
     * Swing's painting architecture requires an opaque {@code JComponent}
     * in the containment hierarchy. This is typically provided by the
     * content pane. If you replace the content pane it is recommended you
     * replace it with an opaque {@code JComponent}.
     * @see JRootPane
     *
     * @param contentPane the {@code contentPane} object for this dialog
     *
     * @throws java.awt.IllegalComponentStateException (a runtime
     *            exception) if the content pane parameter is {@code null}
     * @see #getContentPane
     * @see RootPaneContainer#setContentPane
     *
     * @beaninfo
     *     hidden: true
     *     description: The client area of the dialog where child
     *                  components are normally inserted.
     */
    public void setContentPane(Container contentPane) {
        getRootPane().setContentPane(contentPane);
    }

    
Returns the layeredPane object for this dialog. 
See Also:
Returns:the layeredPane property
/**
     * Returns the {@code layeredPane} object for this dialog.
     *
     * @return the {@code layeredPane} property
     *
     * @see #setLayeredPane
     * @see RootPaneContainer#getLayeredPane
     */
    public JLayeredPane getLayeredPane() {
        return getRootPane().getLayeredPane();
    }

    
Sets the layeredPane property. This method is called by the constructor. 
Params:
  • layeredPane – the new layeredPane property
Throws:
See Also:
@beaninfo
    hidden: true
    description: The pane which holds the various dialog layers.
/**
     * Sets the {@code layeredPane} property.
     * This method is called by the constructor.
     *
     * @param layeredPane the new {@code layeredPane} property
     *
     * @throws java.awt.IllegalComponentStateException (a runtime
     *            exception) if the layered pane parameter is null
     * @see #getLayeredPane
     * @see RootPaneContainer#setLayeredPane
     *
     * @beaninfo
     *     hidden: true
     *     description: The pane which holds the various dialog layers.
     */
    public void setLayeredPane(JLayeredPane layeredPane) {
        getRootPane().setLayeredPane(layeredPane);
    }

    
Returns the glassPane object for this dialog. 
See Also:
Returns:the glassPane property
/**
     * Returns the {@code glassPane} object for this dialog.
     *
     * @return the {@code glassPane} property
     *
     * @see #setGlassPane
     * @see RootPaneContainer#getGlassPane
     */
    public Component getGlassPane() {
        return getRootPane().getGlassPane();
    }

    
Sets the glassPane property. This method is called by the constructor. 
Params:
  • glassPane – the glassPane object for this dialog
See Also:
@beaninfo
    hidden: true
    description: A transparent pane used for menu rendering.
/**
     * Sets the {@code glassPane} property.
     * This method is called by the constructor.
     *
     * @param glassPane the {@code glassPane} object for this dialog
     * @see #getGlassPane
     * @see RootPaneContainer#setGlassPane
     *
     * @beaninfo
     *     hidden: true
     *     description: A transparent pane used for menu rendering.
     */
    public void setGlassPane(Component glassPane) {
        getRootPane().setGlassPane(glassPane);
    }

    
{@inheritDoc}

Since:1.6
/**
     * {@inheritDoc}
     *
     * @since 1.6
     */
    public Graphics getGraphics() {
        JComponent.getGraphicsInvoked(this);
        return super.getGraphics();
    }

    
Repaints the specified rectangle of this component within time milliseconds. Refer to RepaintManager for details on how the repaint is handled. 
Params:
  • time –   maximum time in milliseconds before update
  • x –    the x coordinate
  • y –    the y coordinate
  • width –    the width
  • height –   the height
See Also:
Since:    1.6
/**
     * Repaints the specified rectangle of this component within
     * {@code time} milliseconds.  Refer to {@code RepaintManager}
     * for details on how the repaint is handled.
     *
     * @param     time   maximum time in milliseconds before update
     * @param     x    the <i>x</i> coordinate
     * @param     y    the <i>y</i> coordinate
     * @param     width    the width
     * @param     height   the height
     * @see       RepaintManager
     * @since     1.6
     */
    public void repaint(long time, int x, int y, int width, int height) {
        if (RepaintManager.HANDLE_TOP_LEVEL_PAINT) {
            RepaintManager.currentManager(this).addDirtyRegion(
                              this, x, y, width, height);
        }
        else {
            super.repaint(time, x, y, width, height);
        }
    }

    
Provides a hint as to whether or not newly created JDialogs should have their Window decorations (such as borders, widgets to close the window, title...) provided by the current look and feel. If defaultLookAndFeelDecorated is true, the current LookAndFeel supports providing window decorations, and the current window manager supports undecorated windows, then newly created JDialogs will have their Window decorations provided by the current LookAndFeel. Otherwise, newly created JDialogs will have their Window decorations provided by the current window manager. 

You can get the same effect on a single JDialog by doing the following:

   JDialog dialog = new JDialog();
   dialog.setUndecorated(true);
   dialog.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);



Params:
  • defaultLookAndFeelDecorated – A hint as to whether or not current
       look and feel should provide window decorations
See Also:
Since:1.4
/**
     * Provides a hint as to whether or not newly created {@code JDialog}s
     * should have their Window decorations (such as borders, widgets to
     * close the window, title...) provided by the current look
     * and feel. If {@code defaultLookAndFeelDecorated} is true,
     * the current {@code LookAndFeel} supports providing window
     * decorations, and the current window manager supports undecorated
     * windows, then newly created {@code JDialog}s will have their
     * Window decorations provided by the current {@code LookAndFeel}.
     * Otherwise, newly created {@code JDialog}s will have their
     * Window decorations provided by the current window manager.
     * <p>
     * You can get the same effect on a single JDialog by doing the following:
     * <pre>
     *    JDialog dialog = new JDialog();
     *    dialog.setUndecorated(true);
     *    dialog.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
     * </pre>
     *
     * @param defaultLookAndFeelDecorated A hint as to whether or not current
     *        look and feel should provide window decorations
     * @see javax.swing.LookAndFeel#getSupportsWindowDecorations
     * @since 1.4
     */
    public static void setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated) {
        if (defaultLookAndFeelDecorated) {
            SwingUtilities.appContextPut(defaultLookAndFeelDecoratedKey, Boolean.TRUE);
        } else {
            SwingUtilities.appContextPut(defaultLookAndFeelDecoratedKey, Boolean.FALSE);
        }
    }

    
Returns true if newly created JDialogs should have their Window decorations provided by the current look and feel. This is only a hint, as certain look and feels may not support this feature. 
Returns:true if look and feel should provide Window decorations.
Since:1.4
/**
     * Returns true if newly created {@code JDialog}s should have their
     * Window decorations provided by the current look and feel. This is only
     * a hint, as certain look and feels may not support this feature.
     *
     * @return true if look and feel should provide Window decorations.
     * @since 1.4
     */
    public static boolean isDefaultLookAndFeelDecorated() {
        Boolean defaultLookAndFeelDecorated =
            (Boolean) SwingUtilities.appContextGet(defaultLookAndFeelDecoratedKey);
        if (defaultLookAndFeelDecorated == null) {
            defaultLookAndFeelDecorated = Boolean.FALSE;
        }
        return defaultLookAndFeelDecorated.booleanValue();
    }

    
Returns a string representation of this JDialog. 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 JDialog.
/**
     * Returns a string representation of this {@code JDialog}.
     * 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}.
     *
     * @return  a string representation of this {@code JDialog}.
     */
    protected String paramString() {
        String defaultCloseOperationString;
        if (defaultCloseOperation == HIDE_ON_CLOSE) {
            defaultCloseOperationString = "HIDE_ON_CLOSE";
        } else if (defaultCloseOperation == DISPOSE_ON_CLOSE) {
            defaultCloseOperationString = "DISPOSE_ON_CLOSE";
        } else if (defaultCloseOperation == DO_NOTHING_ON_CLOSE) {
            defaultCloseOperationString = "DO_NOTHING_ON_CLOSE";
        } else defaultCloseOperationString = "";
        String rootPaneString = (rootPane != null ?
                                 rootPane.toString() : "");
        String rootPaneCheckingEnabledString = (rootPaneCheckingEnabled ?
                                                "true" : "false");

        return super.paramString() +
        ",defaultCloseOperation=" + defaultCloseOperationString +
        ",rootPane=" + rootPaneString +
        ",rootPaneCheckingEnabled=" + rootPaneCheckingEnabledString;
    }


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

    protected AccessibleContext accessibleContext = null;

    
Gets the AccessibleContext associated with this JDialog.
For JDialogs, the AccessibleContext takes the form of an
AccessibleJDialog.
A new AccessibleJDialog instance is created if necessary.

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

    
This class implements accessibility support for the JDialog class. It provides an implementation of the Java Accessibility API appropriate to dialog user-interface elements. 
/**
     * This class implements accessibility support for the
     * {@code JDialog} class.  It provides an implementation of the
     * Java Accessibility API appropriate to dialog user-interface
     * elements.
     */
    protected class AccessibleJDialog extends AccessibleAWTDialog {

        // AccessibleContext methods
        //
        
Get the accessible name of this object.

Returns:the localized name of the object -- can be null if this
object does not have a name
/**
         * Get the accessible name of this object.
         *
         * @return the localized name of the object -- can be null if this
         * object does not have a name
         */
        public String getAccessibleName() {
            if (accessibleName != null) {
                return accessibleName;
            } else {
                if (getTitle() == null) {
                    return super.getAccessibleName();
                } else {
                    return getTitle();
                }
            }
        }

        
Get the state of this object.

See Also:
Returns:an instance of AccessibleStateSet containing the current
state set of the object
/**
         * Get the state of this object.
         *
         * @return an instance of AccessibleStateSet containing the current
         * state set of the object
         * @see AccessibleState
         */
        public AccessibleStateSet getAccessibleStateSet() {
            AccessibleStateSet states = super.getAccessibleStateSet();

            if (isResizable()) {
                states.add(AccessibleState.RESIZABLE);
            }
            if (getFocusOwner() != null) {
                states.add(AccessibleState.ACTIVE);
            }
            if (isModal()) {
                states.add(AccessibleState.MODAL);
            }
            return states;
        }

    } // inner class AccessibleJDialog
}