/*
 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
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 *
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 *
 *
 *
 */
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 {@link javax.swing.RootPaneContainer}
 * 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 {@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</code> package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 * @see JRootPane
 * @see #setDefaultCloseOperation
 * @see java.awt.event.WindowListener#windowClosing
 * @see javax.swing.RootPaneContainer
 *
 * @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
 * @see javax.swing.RootPaneContainer
 */
 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
 * @since 1.3
 */
 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
 * @since 1.3
 */
 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 e the 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
 * @see javax.swing.RootPaneContainer
 */
 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
 * @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 <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 {@link javax.swing.RootPaneContainer} 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
 * @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
 * <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
 * @see javax.swing.RootPaneContainer
 */
 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 {@link javax.swing.RootPaneContainer} for
 * more information.
 *
 * @param manager the <code>LayoutManager</code>
 * @see #setRootPaneCheckingEnabled
 * @see javax.swing.RootPaneContainer
 */
 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.
 *
 * @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 <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
}