/*
 
* 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.AWTEvent;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.LayoutManager;
import java.awt.event.WindowEvent;

import javax.accessibility.Accessible;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleState;
import javax.accessibility.AccessibleStateSet;


/**
 
* An extended version of <code>java.awt.Frame</code> that adds support for
 
* the JFC/Swing component architecture.
 
* You can find task-oriented documentation about using <code>JFrame</code>
 
* in <em>The Java Tutorial</em>, in the section
 
* <a
 
href=" https://docs.oracle.com/javase/tutorial/uiswing/components/frame.html">How
 
to Make Frames</a>.
 
*
 
* <p>
 
* The <code>JFrame</code> class is slightly incompatible with <code>Frame</code>.
 
* Like all other JFC/Swing top-level containers,
 
* a <code>JFrame</code> contains a <code>JRootPane</code> as its only child.
 
* The <b>content pane</b> provided by the root pane should,
 
* as a rule, contain
 
* all the non-menu components displayed by the <code>JFrame</code>.
 
* This is different from the AWT <code>Frame</code> case.
 
* 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 frame as follows:
 
* <pre>
 
*
       
frame.add(child);
 
* </pre>
 
* And the child will be added to the contentPane.
 
* The content pane will
 
* always be non-null. Attempting to set it to null will cause the JFrame
 
* to throw an exception. The default content pane will have a BorderLayout
 
* manager set on it.
 
* Refer to
 
* for details on adding, removing and setting the <code>LayoutManager</code>
 
* of a <code>JFrame</code>.
 
* <p>
 
* Unlike a <code>Frame</code>, a <code>JFrame</code> has some notion of how to
 
* respond when the user attempts to close the window. The default behavior
 
* is to simply hide the JFrame when the user closes the window. To change the
 
* default behavior, you invoke the method
 
* {@link #setDefaultCloseOperation}.
 
* To make the <code>JFrame</code> behave the same as a <code>Frame</code>
 
* instance, use
 
* <code>setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE)</code>.
 
* <p>
 
* For more information on content panes
 
* and other features that root panes provide,
 
* see <a
 
href=" https://docs.oracle.com/javase/tutorial/uiswing/components/toplevel.html">Using
 
Top-Level Containers</a> in <em>The Java Tutorial</em>.
 
* <p>
 
* In a multi-screen environment, you can create a <code>JFrame</code>
 
* on a different screen device.
  
See
 
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</code> package.
 
* Please see .
 
*
 
* @see JRootPane
 
* @see #setDefaultCloseOperation
 
* @see java.awt.event.WindowListener#windowClosing
 
*
 
*
 
* @beaninfo
 
*
      
attribute: isContainer true
 
*
      
attribute: containerDelegate getContentPane
 
*
    
description: A toplevel window which can be minimized to an icon.
 
*
 
* @author Jeff Dinkins
 
* @author Georges Saab
 
* @author David Kloba
 
*/

public class JFrame
  
extends Frame implements WindowConstants,
                                              
Accessible,
                                              
RootPaneContainer,
                              
TransferHandler.HasGetTransferHandler
{
    
/**
     
* The exit application default window close operation. If a window
     
* has this set as the close operation and is closed in an applet,
     
* a <code>SecurityException</code> may be thrown.
     
* It is recommended you only use this in an application.
     
* <p>
     
* @since 1.3
     
*/

    
public static final int EXIT_ON_CLOSE = 3;

    
/**
     
* Key into the AppContext, used to check if should provide decorations
     
* by default.
     
*/

    
private static final Object defaultLookAndFeelDecoratedKey =
            
new StringBuffer("JFrame.defaultLookAndFeelDecorated");

    
private int defaultCloseOperation = HIDE_ON_CLOSE;

    
/**
     
* The <code>TransferHandler</code> for this frame.
     
*/
    
private TransferHandler transferHandler;

    
/**
     
* The <code>JRootPane</code> instance that manages the
     
* <code>contentPane</code>
     
* and optional <code>menuBar</code> for this frame, as well as the
     
* <code>glassPane</code>.
     
*
     
* @see JRootPane
     
* @see RootPaneContainer
     
*/

    
protected JRootPane rootPane;

    
/**
     
* If true then calls to <code>add</code> and <code>setLayout</code>
     
* will be forwarded to the <code>contentPane</code>. This is initially
     
* false, but is set to true when the <code>JFrame</code> is constructed.
     
*
     
* @see #isRootPaneCheckingEnabled
     
* @see #setRootPaneCheckingEnabled
     
*
 

     
*/

    
protected boolean rootPaneCheckingEnabled = false;


    
/**
     
* Constructs a new frame that is initially invisible.
     
* <p>
     
* This constructor sets the component's locale property to the value
     
* returned by <code>JComponent.getDefaultLocale</code>.
     
*
     
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
     
* returns true.
     
* @see java.awt.GraphicsEnvironment#isHeadless
     
* @see Component#setSize
     
* @see Component#setVisible
     
* @see JComponent#getDefaultLocale
     
*/

    
public JFrame() throws HeadlessException {
        
super();
        
frameInit();
    
}

    
/**
     
* Creates a <code>Frame</code> in the specified
     
* <code>GraphicsConfiguration</code> of
     
* a screen device and a blank title.
     
* <p>
     
* This constructor sets the component's locale property to the value
     
* returned by <code>JComponent.getDefaultLocale</code>.
     
*
     
* @param gc the <code>GraphicsConfiguration</code> that is used
     
*
          
to construct the new <code>Frame</code>;
     
*
          
if <code>gc</code> is <code>null</code>, the system
     
*
          
default <code>GraphicsConfiguration</code> is assumed
     
* @exception IllegalArgumentException if <code>gc</code> is not from
     
*
          
a screen device.
  
This exception is always thrown when
     
*
      
GraphicsEnvironment.isHeadless() returns true.
     
* @see java.awt.GraphicsEnvironment#isHeadless
     
* @see JComponent#getDefaultLocale
     
* @since1.3
     
*/

    
public JFrame(GraphicsConfiguration gc) {
        
super(gc);
        
frameInit();
    
}

    
/**
     
* Creates a new, initially invisible <code>Frame</code> with the
     
* specified title.
     
* <p>
     
* This constructor sets the component's locale property to the value
     
* returned by <code>JComponent.getDefaultLocale</code>.
     
*
     
* @param title the title for the frame
     
* @exception HeadlessException if GraphicsEnvironment.isHeadless()
     
* returns true.
     
* @see java.awt.GraphicsEnvironment#isHeadless
     
* @see Component#setSize
     
* @see Component#setVisible
     
* @see JComponent#getDefaultLocale
     
*/

    
public JFrame(String title) throws HeadlessException {
        
super(title);
        
frameInit();
    
}

    
/**
     
* Creates a <code>JFrame</code> with the specified title and the
     
* specified <code>GraphicsConfiguration</code> of a screen device.
     
* <p>
     
* This constructor sets the component's locale property to the value
     
* returned by <code>JComponent.getDefaultLocale</code>.
     
*
     
* @param title the title to be displayed in the
     
*
          
frame's border. A <code>null</code> value is treated as
     
*
          
an empty string, "".
     
* @param gc the <code>GraphicsConfiguration</code> that is used
     
*
          
to construct the new <code>JFrame</code> with;
     
*
          
if <code>gc</code> is <code>null</code>, the system
     
*
          
default <code>GraphicsConfiguration</code> is assumed
     
* @exception IllegalArgumentException if <code>gc</code> is not from
     
*
          
a screen device.
  
This exception is always thrown when
     
*
      
GraphicsEnvironment.isHeadless() returns true.
     
* @see java.awt.GraphicsEnvironment#isHeadless
     
* @see JComponent#getDefaultLocale
     
* @since1.3
     
*/

    
public JFrame(String title, GraphicsConfiguration gc) {
        
super(title, gc);
        
frameInit();
    
}

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

    
/**
     
* Called by the constructor methods to create the default
     
* <code>rootPane</code>.
     
*/

    
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;
    
}

    
/**
     
* Processes window events occurring on this component.
     
* Hides the window or disposes of it, as specified by the setting
     
* of the <code>defaultCloseOperation</code> property.
     
*
     
* @param
  
ethe window event
     
* @see
    
#setDefaultCloseOperation
     
* @see
    
java.awt.Window#processWindowEvent
     
*/

    
protected void processWindowEvent(final 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 EXIT_ON_CLOSE:
                    
// This needs to match the checkExit call in
                    
// setDefaultCloseOperation
                    
System.exit(0);
                    
break;
                
case DO_NOTHING_ON_CLOSE:
                
default:
            
}
        
}
    
}

    
/**
     
* Sets the operation that will happen by default when
     
* the user initiates a "close" on this frame.
     
* You must specify one of the following choices:
     
* <br><br>
     
* <ul>
     
* <li><code>DO_NOTHING_ON_CLOSE</code>
     
* (defined in <code>WindowConstants</code>):
     
* Don't do anything; require the
     
* program to handle the operation in the <code>windowClosing</code>
     
* method of a registered <code>WindowListener</code> object.
     
*
     
* <li><code>HIDE_ON_CLOSE</code>
     
* (defined in <code>WindowConstants</code>):
     
* Automatically hide the frame after
     
* invoking any registered <code>WindowListener</code>
     
* objects.
     
*
     
* <li><code>DISPOSE_ON_CLOSE</code>
     
* (defined in <code>WindowConstants</code>):
     
* Automatically hide and dispose the
     
* frame after invoking any registered <code>WindowListener</code>
     
* objects.
     
*
     
* <li><code>EXIT_ON_CLOSE</code>
     
* (defined in <code>JFrame</code>):
     
* Exit the application using the <code>System</code>
     
* <code>exit</code> method.
  
Use this only in applications.
     
* </ul>
     
* <p>
     
* The value is set to <code>HIDE_ON_CLOSE</code> 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 frame
     
* @exception IllegalArgumentException if defaultCloseOperation value
     
*
             
isn't one of the above valid values
     
* @see #addWindowListener
     
* @see #getDefaultCloseOperation
     
* @see WindowConstants
     
* @throws
  
SecurityException
     
*
        
if <code>EXIT_ON_CLOSE</code> has been specified and the
     
*
        
<code>SecurityManager</code> will
     
*
        
not allow the caller to invoke <code>System.exit</code>
     
* @see
        
java.lang.Runtime#exit(int)
     
*
     
* @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
     
*
              
EXIT_ON_CLOSE
       
WindowConstants.EXIT_ON_CLOSE
     
* description: The frame's default close operation.
     
*/

    
public void setDefaultCloseOperation(int operation) {
        
if (operation != DO_NOTHING_ON_CLOSE &&
            
operation != HIDE_ON_CLOSE &&
            
operation != DISPOSE_ON_CLOSE &&
            
operation != EXIT_ON_CLOSE) {
            
throw new IllegalArgumentException("defaultCloseOperation must be one of: DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE, DISPOSE_ON_CLOSE, or EXIT_ON_CLOSE");
        
}

        
if (operation == EXIT_ON_CLOSE) {
            
SecurityManager security = System.getSecurityManager();
            
if (security != null) {
                
security.checkExit(0);
            
}
        
}
        
if (this.defaultCloseOperation != operation) {
            
int oldValue = this.defaultCloseOperation;
            
this.defaultCloseOperation = operation;
            
firePropertyChange("defaultCloseOperation", oldValue, operation);
        
}
    
}


   
/**
    
* Returns the operation that occurs when the user
    
* initiates a "close" on this frame.
    
*
    
* @return an integer indicating the window-close operation
    
* @see #setDefaultCloseOperation
    
*/

    
public int getDefaultCloseOperation() {
        
return defaultCloseOperation;
    
}

    
/**
     
* 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 JFrame}, {@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 <code>transferHandler</code> property.
     
*
     
* @return the value of the <code>transferHandler</code> property
     
*
     
* @see TransferHandler
     
* @see #setTransferHandler
     
* @since 1.6
     
*/

    
public TransferHandler getTransferHandler() {
        
return transferHandler;
    
}

    
/**
     
* Just calls <code>paint(g)</code>.
  
This method was overridden to
     
* prevent an unnecessary call to clear the background.
     
*
     
* @param g the Graphics context in which to paint
     
*/

    
public void update(Graphics g) {
        
paint(g);
    
}

   
/**
    
* Sets the menubar for this frame.
    
* @param menubar the menubar being placed in the frame
    
*
    
* @see #getJMenuBar
    
*
    
* @beaninfo
    
*
      
hidden: true
    
* description: The menubar for accessing pulldown menus from this frame.
    
*/

    
public void setJMenuBar(JMenuBar menubar) {
        
getRootPane().setMenuBar(menubar);
    
}

   
/**
    
* Returns the menubar set on this frame.
    
* @return the menubar for this frame
    
*
    
* @see #setJMenuBar
    
*/

    
public JMenuBar getJMenuBar() {
        
return getRootPane().getMenuBar();
    
}

    
/**
     
* Returns whether calls to <code>add</code> and
     
* <code>setLayout</code> are forwarded to the <code>contentPane</code>.
     
*
     
* @return true if <code>add</code> and <code>setLayout</code>
     
*
         
are forwarded; false otherwise
     
*
     
* @see #addImpl
     
* @see #setLayout
     
* @see #setRootPaneCheckingEnabled
     
*
 

     
*/

    
protected boolean isRootPaneCheckingEnabled() {
        
return rootPaneCheckingEnabled;
    
}


    
/**
     
* Sets whether calls to <code>add</code> and
     
* <code>setLayout</code> are forwarded to the <code>contentPane</code>.
     
*
     
* @param enabled
  
true if <code>add</code> and <code>setLayout</code>
     
*
        
are forwarded, false if they should operate directly on the
     
*
        
<code>JFrame</code>.
     
*
     
* @see #addImpl
     
* @see #setLayout
     
* @see #isRootPaneCheckingEnabled
     
*
 

     
* @beaninfo
     
*
      
hidden: true
     
* description: Whether the add and setLayout methods are forwarded
     
*/

    
protected void setRootPaneCheckingEnabled(boolean enabled) {
        
rootPaneCheckingEnabled = enabled;
    
}


    
/**
     
* Adds the specified child <code>Component</code>.
     
* This method is overridden to conditionally forward calls to the
     
* <code>contentPane</code>.
     
* By default, children are added to the <code>contentPane</code> instead
     
* of the frame, refer to
 
 
for
     
* details.
     
*
     
* @param comp the component to be enhanced
     
* @param constraints the constraints to be respected
     
* @param index the index
     
* @exception IllegalArgumentException if <code>index</code> is invalid
     
* @exception IllegalArgumentException if adding the container's parent
     
*
                  
to itself
     
* @exception IllegalArgumentException if adding a window to a container
     
*
     
* @see #setRootPaneCheckingEnabled
     
*
 

     
*/

    
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
     
* <code>comp</code> is not the <code>rootPane</code>, this will forward
     
* the call to the <code>contentPane</code>. This will do nothing if
     
* <code>comp</code> is not a child of the <code>JFrame</code> or
     
* <code>contentPane</code>.
     
*
     
* @param comp the component to be removed
     
* @throws NullPointerException if <code>comp</code> is null
     
* @see #add
     
*
 

     
*/

    
public void remove(Component comp) {
        
if (comp == rootPane) {
            
super.remove(comp);
        
} else {
            
getContentPane().remove(comp);
        
}
    
}


    
/**
     
* Sets the <code>LayoutManager</code>.
     
* Overridden to conditionally forward the call to the
     
* <code>contentPane</code>.
     
* Refer to
 
 
for
     
* more information.
     
*
     
* @param manager the <code>LayoutManager</code>
     
* @see #setRootPaneCheckingEnabled
     
*
 

     
*/

    
public void setLayout(LayoutManager manager) {
        
if(isRootPaneCheckingEnabled()) {
            
getContentPane().setLayout(manager);
        
}
        
else {
            
super.setLayout(manager);
        
}
    
}


    
/**
     
* Returns the <code>rootPane</code> object for this frame.
     
* @return the <code>rootPane</code> property
     
*
     
* @see #setRootPane
     
* @see RootPaneContainer#getRootPane
     
*/

    
public JRootPane getRootPane() {
        
return rootPane;
    
}


    
/**
     
* Sets the <code>rootPane</code> property.
     
* This method is called by the constructor.
     
* @param root the <code>rootPane</code> object for this frame
     
*
     
* @see #getRootPane
     
*
     
* @beaninfo
     
*
   
hidden: true
     
* description: the RootPane object for this frame.
     
*/

    
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);
            
}
        
}
    
}

    
/**
     
* {@inheritDoc}
     
*/
    
public void setIconImage(Image image) {
        
super.setIconImage(image);
    
}

    
/**
     
* Returns the <code>contentPane</code> object for this frame.
     
* @return the <code>contentPane</code> property
     
*
     
* @see #setContentPane
     
* @see RootPaneContainer#getContentPane
     
*/

    
public Container getContentPane() {
        
return getRootPane().getContentPane();
    
}

    
/**
     
* Sets the <code>contentPane</code> property.
     
* This method is called by the constructor.
     
* <p>
     
* Swing's painting architecture requires an opaque <code>JComponent</code>
     
* 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</code>.
     
*
     
* @param contentPane the <code>contentPane</code> object for this frame
     
*
     
* @exception java.awt.IllegalComponentStateException (a runtime
     
*
            
exception) if the content pane parameter is <code>null</code>
     
* @see #getContentPane
     
* @see RootPaneContainer#setContentPane
     
* @see JRootPane
     
*
     
* @beaninfo
     
*hidden: true
     
*description: The client area of the frame where child
     
*
                  
components are normally inserted.
     
*/

    
public void setContentPane(Container contentPane) {
        
getRootPane().setContentPane(contentPane);
    
}

    
/**
     
* Returns the <code>layeredPane</code> object for this frame.
     
* @return the <code>layeredPane</code> property
     
*
     
* @see #setLayeredPane
     
* @see RootPaneContainer#getLayeredPane
     
*/

    
public JLayeredPane getLayeredPane() {
        
return getRootPane().getLayeredPane();
    
}

    
/**
     
* Sets the <code>layeredPane</code> property.
     
* This method is called by the constructor.
     
* @param layeredPane the <code>layeredPane</code> object for this frame
     
*
     
* @exception java.awt.IllegalComponentStateException (a runtime
     
*
            
exception) if the layered pane parameter is <code>null</code>
     
* @see #getLayeredPane
     
* @see RootPaneContainer#setLayeredPane
     
*
     
* @beaninfo
     
*hidden: true
     
*description: The pane that holds the various frame layers.
     
*/

    
public void setLayeredPane(JLayeredPane layeredPane) {
        
getRootPane().setLayeredPane(layeredPane);
    
}

    
/**
     
* Returns the <code>glassPane</code> object for this frame.
     
* @return the <code>glassPane</code> property
     
*
     
* @see #setGlassPane
     
* @see RootPaneContainer#getGlassPane
     
*/

    
public Component getGlassPane() {
        
return getRootPane().getGlassPane();
    
}

    
/**
     
* Sets the <code>glassPane</code> property.
     
* This method is called by the constructor.
     
* @param glassPane the <code>glassPane</code> object for this frame
     
*
     
* @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
     
*/
    
public Graphics getGraphics() {
        
JComponent.getGraphicsInvoked(this);
        
return super.getGraphics();
    
}

    
/**
     
* Repaints the specified rectangle of this component within
     
* <code>time</code> milliseconds.
  
Refer to <code>RepaintManager</code>
     
* for details on how the repaint is handled.
     
*
     
* @paramtime
   
maximum time in milliseconds before update
     
* @paramx
    
the <i>x</i> coordinate
     
* @paramy
    
the <i>y</i> coordinate
     
* @paramwidth
    
the width
     
* @paramheight
   
the height
     
* @see
       
RepaintManager
     
* @since1.6
     
*/

    
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 <code>JFrame</code>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</code> is true,
     
* the current <code>LookAndFeel</code> supports providing window
     
* decorations, and the current window manager supports undecorated
     
* windows, then newly created <code>JFrame</code>s will have their
     
* Window decorations provided by the current <code>LookAndFeel</code>.
     
* Otherwise, newly created <code>JFrame</code>s will have their
     
* Window decorations provided by the current window manager.
     
* <p>
     
* You can get the same effect on a single JFrame by doing the following:
     
* <pre>
     
*
    
JFrame frame = new JFrame();
     
*
    
frame.setUndecorated(true);
     
*
    
frame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
     
* </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 <code>JFrame</code>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 <code>JFrame</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>JFrame</code>
     
*/

    
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 if (defaultCloseOperation == 3) {
            
defaultCloseOperationString = "EXIT_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
////////////////

    
/** The accessible context property. */
    
protected AccessibleContext accessibleContext = null;

    
/**
     
* Gets the AccessibleContext associated with this JFrame.
     
* For JFrames, the AccessibleContext takes the form of an
     
* AccessibleJFrame.
     
* A new AccessibleJFrame instance is created if necessary.
     
*
     
* @return an AccessibleJFrame that serves as the
     
*
         
AccessibleContext of this JFrame
     
*/

    
public AccessibleContext getAccessibleContext() {
        
if (accessibleContext == null) {
            
accessibleContext = new AccessibleJFrame();
        
}
        
return accessibleContext;
    
}

    
/**
     
* This class implements accessibility support for the
     
* <code>JFrame</code> class.
  
It provides an implementation of the
     
* Java Accessibility API appropriate to frame user-interface
     
* elements.
     
*/

    
protected class AccessibleJFrame extends AccessibleAWTFrame {

        
// AccessibleContext methods
        
/**
         
* 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.
         
*
         
* @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);
            
}
            
// FIXME:
  
[[[WDW - should also return ICONIFIED and ICONIFIABLE

            
// if we can ever figure these out]]]
            
return states;
        
}
    
} // inner class AccessibleJFrame
}