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	/*
	* 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.util.HashSet;
	import java.util.Hashtable;
	import java.util.Dictionary;
	import java.util.Enumeration;
	import java.util.Locale;
	import java.util.Vector;
	import java.util.EventListener;
	import java.util.Set;
	import java.util.Map;
	import java.util.HashMap;

	import java.awt.*;
	import java.awt.event.*;
	import java.awt.image.VolatileImage;
	import java.awt.Graphics2D;
	import java.awt.peer.LightweightPeer;
	import java.awt.dnd.DropTarget;
	import java.awt.font.FontRenderContext;
	import java.beans.PropertyChangeListener;
	import java.beans.VetoableChangeListener;
	import java.beans.VetoableChangeSupport;
	import java.beans.Transient;

	import java.applet.Applet;

	import java.io.Serializable;
	import java.io.ObjectOutputStream;
	import java.io.ObjectInputStream;
	import java.io.IOException;
	import java.io.ObjectInputValidation;
	import java.io.InvalidObjectException;
	import java.util.concurrent.atomic.AtomicBoolean;

	import javax.swing.border.*;
	import javax.swing.event.*;
	import javax.swing.plaf.*;
	import static javax.swing.ClientPropertyKey.*;
	import javax.accessibility.*;

	import sun.awt.SunToolkit;
	import sun.swing.SwingUtilities2;
	import sun.swing.UIClientPropertyKey;

	/**
	* The base class for all Swing components except top-level containers.
	* To use a component that inherits from <code>JComponent</code>,
	* you must place the component in a containment hierarchy
	* whose root is a top-level Swing container.
	* Top-level Swing containers --
	* such as <code>JFrame</code>, <code>JDialog</code>,
	* and <code>JApplet</code> --
	* are specialized components
	* that provide a place for other Swing components to paint themselves.
	* For an explanation of containment hierarchies, see
	* <a
	href="https://docs.oracle.com/javase/tutorial/uiswing/components/toplevel.html">Swing Components and the Containment Hierarchy</a>,
	* a section in <em>The Java Tutorial</em>.
	*
	* <p>
	* The <code>JComponent</code> class provides:
	* <ul>
	* <li>The base class for both standard and custom components
	* that use the Swing architecture.
	* <li>A "pluggable look and feel" (L&F) that can be specified by the
	* programmer or (optionally) selected by the user at runtime.
	* The look and feel for each component is provided by a
	* <em>UI delegate</em> -- an object that descends from
	* {@link javax.swing.plaf.ComponentUI}.
	* See <a
	* href="https://docs.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html">How
	* to Set the Look and Feel</a>
	* in <em>The Java Tutorial</em>
	* for more information.
	* <li>Comprehensive keystroke handling.
	* See the document <a
	* href="https://docs.oracle.com/javase/tutorial/uiswing/misc/keybinding.html">How to Use Key Bindings</a>,
	* an article in <em>The Java Tutorial</em>,
	* for more information.
	* <li>Support for tool tips --
	* short descriptions that pop up when the cursor lingers
	* over a component.
	* See <a
	* href="https://docs.oracle.com/javase/tutorial/uiswing/components/tooltip.html">How
	* to Use Tool Tips</a>
	* in <em>The Java Tutorial</em>
	* for more information.
	* <li>Support for accessibility.
	* <code>JComponent</code> contains all of the methods in the
	* <code>Accessible</code> interface,
	* but it doesn't actually implement the interface. That is the
	* responsibility of the individual classes
	* that extend <code>JComponent</code>.
	* <li>Support for component-specific properties.
	* With the {@link #putClientProperty}
	* and {@link #getClientProperty} methods,
	* you can associate name-object pairs
	* with any object that descends from <code>JComponent</code>.
	* <li>An infrastructure for painting
	* that includes double buffering and support for borders.
	* For more information see <a
	* href="http://www.oracle.com/technetwork/java/painting-140037.html#swing">Painting</a> and
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/border.htmll">How
	* to Use Borders</a>,
	* both of which are sections in <em>The Java Tutorial</em>.
	* </ul>
	* For more information on these subjects, see the
	* <a href="package-summary.html#package_description">Swing package description</a>
	* and <em>The Java Tutorial</em> section
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/jcomponent.html">The JComponent Class</a>.
	* <p>
	* <code>JComponent</code> and its subclasses document default values
	* for certain properties. For example, <code>JTable</code> documents the
	* default row height as 16. Each <code>JComponent</code> subclass
	* that has a <code>ComponentUI</code> will create the
	* <code>ComponentUI</code> as part of its constructor. In order
	* to provide a particular look and feel each
	* <code>ComponentUI</code> may set properties back on the
	* <code>JComponent</code> that created it. For example, a custom
	* look and feel may require <code>JTable</code>s to have a row
	* height of 24. The documented defaults are the value of a property
	* BEFORE the <code>ComponentUI</code> has been installed. If you
	* need a specific value for a particular property you should
	* explicitly set it.
	* <p>
	* In release 1.4, the focus subsystem was rearchitected.
	* For more information, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	* <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™
	* has been added to the <code>java.beans</code> package.
	* Please see {@link java.beans.XMLEncoder}.
	*
	* @see KeyStroke
	* @see Action
	* @see #setBorder
	* @see #registerKeyboardAction
	* @see JOptionPane
	* @see #setDebugGraphicsOptions
	* @see #setToolTipText
	* @see #setAutoscrolls
	*
	* @author Hans Muller
	* @author Arnaud Weber
	*/
	public abstract class JComponent extends Container implements Serializable,
	TransferHandler.HasGetTransferHandler
	{
	/**
	* @see #getUIClassID
	* @see #writeObject
	*/
	private static final String uiClassID = "ComponentUI";

	/**
	* @see #readObject
	*/
	private static final Hashtable<ObjectInputStream, ReadObjectCallback> readObjectCallbacks =
	new Hashtable<ObjectInputStream, ReadObjectCallback>(1);

	/**
	* Keys to use for forward focus traversal when the JComponent is
	* managing focus.
	*/
	private static Set<KeyStroke> managingFocusForwardTraversalKeys;

	/**
	* Keys to use for backward focus traversal when the JComponent is
	* managing focus.
	*/
	private static Set<KeyStroke> managingFocusBackwardTraversalKeys;

	// Following are the possible return values from getObscuredState.
	private static final int NOT_OBSCURED = 0;
	private static final int PARTIALLY_OBSCURED = 1;
	private static final int COMPLETELY_OBSCURED = 2;

	/**
	* Set to true when DebugGraphics has been loaded.
	*/
	static boolean DEBUG_GRAPHICS_LOADED;

	/**
	* Key used to look up a value from the AppContext to determine the
	* JComponent the InputVerifier is running for. That is, if
	* AppContext.get(INPUT_VERIFIER_SOURCE_KEY) returns non-null, it
	* indicates the EDT is calling into the InputVerifier from the
	* returned component.
	*/
	private static final Object INPUT_VERIFIER_SOURCE_KEY =
	new StringBuilder("InputVerifierSourceKey");

	/* The following fields support set methods for the corresponding
	* java.awt.Component properties.
	*/
	private boolean isAlignmentXSet;
	private float alignmentX;
	private boolean isAlignmentYSet;
	private float alignmentY;

	/**
	* Backing store for JComponent properties and listeners
	*/

	/** The look and feel delegate for this component. */
	protected transient ComponentUI ui;
	/** A list of event listeners for this component. */
	protected EventListenerList listenerList = new EventListenerList();

	private transient ArrayTable clientProperties;
	private VetoableChangeSupport vetoableChangeSupport;
	/**
	* Whether or not autoscroll has been enabled.
	*/
	private boolean autoscrolls;
	private Border border;
	private int flags;

	/* Input verifier for this component */
	private InputVerifier inputVerifier = null;

	private boolean verifyInputWhenFocusTarget = true;

	/**
	* Set in <code>_paintImmediately</code>.
	* Will indicate the child that initiated the painting operation.
	* If <code>paintingChild</code> is opaque, no need to paint
	* any child components after <code>paintingChild</code>.
	* Test used in <code>paintChildren</code>.
	*/
	transient Component paintingChild;

	/**
	* Constant used for <code>registerKeyboardAction</code> that
	* means that the command should be invoked when
	* the component has the focus.
	*/
	public static final int WHEN_FOCUSED = 0;

	/**
	* Constant used for <code>registerKeyboardAction</code> that
	* means that the command should be invoked when the receiving
	* component is an ancestor of the focused component or is
	* itself the focused component.
	*/
	public static final int WHEN_ANCESTOR_OF_FOCUSED_COMPONENT = 1;

	/**
	* Constant used for <code>registerKeyboardAction</code> that
	* means that the command should be invoked when
	* the receiving component is in the window that has the focus
	* or is itself the focused component.
	*/
	public static final int WHEN_IN_FOCUSED_WINDOW = 2;

	/**
	* Constant used by some of the APIs to mean that no condition is defined.
	*/
	public static final int UNDEFINED_CONDITION = -1;

	/**
	* The key used by <code>JComponent</code> to access keyboard bindings.
	*/
	private static final String KEYBOARD_BINDINGS_KEY = "_KeyboardBindings";

	/**
	* An array of <code>KeyStroke</code>s used for
	* <code>WHEN_IN_FOCUSED_WINDOW</code> are stashed
	* in the client properties under this string.
	*/
	private static final String WHEN_IN_FOCUSED_WINDOW_BINDINGS = "_WhenInFocusedWindow";

	/**
	* The comment to display when the cursor is over the component,
	* also known as a "value tip", "flyover help", or "flyover label".
	*/
	public static final String TOOL_TIP_TEXT_KEY = "ToolTipText";

	private static final String NEXT_FOCUS = "nextFocus";

	/**
	* <code>JPopupMenu</code> assigned to this component
	* and all of its children
	*/
	private JPopupMenu popupMenu;

	/ Private flags /
	private static final int IS_DOUBLE_BUFFERED = 0;
	private static final int ANCESTOR_USING_BUFFER = 1;
	private static final int IS_PAINTING_TILE = 2;
	private static final int IS_OPAQUE = 3;
	private static final int KEY_EVENTS_ENABLED = 4;
	private static final int FOCUS_INPUTMAP_CREATED = 5;
	private static final int ANCESTOR_INPUTMAP_CREATED = 6;
	private static final int WIF_INPUTMAP_CREATED = 7;
	private static final int ACTIONMAP_CREATED = 8;
	private static final int CREATED_DOUBLE_BUFFER = 9;
	// bit 10 is free
	private static final int IS_PRINTING = 11;
	private static final int IS_PRINTING_ALL = 12;
	private static final int IS_REPAINTING = 13;
	/ Bits 14-21 are used to handle nested writeObject calls. /
	private static final int WRITE_OBJ_COUNTER_FIRST = 14;
	private static final int RESERVED_1 = 15;
	private static final int RESERVED_2 = 16;
	private static final int RESERVED_3 = 17;
	private static final int RESERVED_4 = 18;
	private static final int RESERVED_5 = 19;
	private static final int RESERVED_6 = 20;
	private static final int WRITE_OBJ_COUNTER_LAST = 21;

	private static final int REQUEST_FOCUS_DISABLED = 22;
	private static final int INHERITS_POPUP_MENU = 23;
	private static final int OPAQUE_SET = 24;
	private static final int AUTOSCROLLS_SET = 25;
	private static final int FOCUS_TRAVERSAL_KEYS_FORWARD_SET = 26;
	private static final int FOCUS_TRAVERSAL_KEYS_BACKWARD_SET = 27;

	private transient AtomicBoolean revalidateRunnableScheduled = new AtomicBoolean(false);

	/**
	* Temporary rectangles.
	*/
	private static java.util.List<Rectangle> tempRectangles = new java.util.ArrayList<Rectangle>(11);

	/** Used for <code>WHEN_FOCUSED</code> bindings. */
	private InputMap focusInputMap;
	/** Used for <code>WHEN_ANCESTOR_OF_FOCUSED_COMPONENT</code> bindings. */
	private InputMap ancestorInputMap;
	/** Used for <code>WHEN_IN_FOCUSED_KEY</code> bindings. */
	private ComponentInputMap windowInputMap;

	/** ActionMap. */
	private ActionMap actionMap;

	/ Key used to store the default locale in an AppContext /
	private static final String defaultLocale = "JComponent.defaultLocale";

	private static Component componentObtainingGraphicsFrom;
	private static Object componentObtainingGraphicsFromLock = new
	StringBuilder("componentObtainingGraphicsFrom");

	/**
	* AA text hints.
	*/
	transient private Object aaTextInfo;

	static Graphics safelyGetGraphics(Component c) {
	return safelyGetGraphics(c, SwingUtilities.getRoot(c));
	}

	static Graphics safelyGetGraphics(Component c, Component root) {
	synchronized(componentObtainingGraphicsFromLock) {
	componentObtainingGraphicsFrom = root;
	Graphics g = c.getGraphics();
	componentObtainingGraphicsFrom = null;
	return g;
	}
	}

	static void getGraphicsInvoked(Component root) {
	if (!JComponent.isComponentObtainingGraphicsFrom(root)) {
	JRootPane rootPane = ((RootPaneContainer)root).getRootPane();
	if (rootPane != null) {
	rootPane.disableTrueDoubleBuffering();
	}
	}
	}


	/**
	* Returns true if {@code c} is the component the graphics is being
	* requested of. This is intended for use when getGraphics is invoked.
	*/
	private static boolean isComponentObtainingGraphicsFrom(Component c) {
	synchronized(componentObtainingGraphicsFromLock) {
	return (componentObtainingGraphicsFrom == c);
	}
	}

	/**
	* Returns the Set of <code>KeyStroke</code>s to use if the component
	* is managing focus for forward focus traversal.
	*/
	static Set<KeyStroke> getManagingFocusForwardTraversalKeys() {
	synchronized(JComponent.class) {
	if (managingFocusForwardTraversalKeys == null) {
	managingFocusForwardTraversalKeys = new HashSet<KeyStroke>(1);
	managingFocusForwardTraversalKeys.add(
	KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
	InputEvent.CTRL_MASK));
	}
	}
	return managingFocusForwardTraversalKeys;
	}

	/**
	* Returns the Set of <code>KeyStroke</code>s to use if the component
	* is managing focus for backward focus traversal.
	*/
	static Set<KeyStroke> getManagingFocusBackwardTraversalKeys() {
	synchronized(JComponent.class) {
	if (managingFocusBackwardTraversalKeys == null) {
	managingFocusBackwardTraversalKeys = new HashSet<KeyStroke>(1);
	managingFocusBackwardTraversalKeys.add(
	KeyStroke.getKeyStroke(KeyEvent.VK_TAB,
	InputEvent.SHIFT_MASK \|
	InputEvent.CTRL_MASK));
	}
	}
	return managingFocusBackwardTraversalKeys;
	}

	private static Rectangle fetchRectangle() {
	synchronized(tempRectangles) {
	Rectangle rect;
	int size = tempRectangles.size();
	if (size > 0) {
	rect = tempRectangles.remove(size - 1);
	}
	else {
	rect = new Rectangle(0, 0, 0, 0);
	}
	return rect;
	}
	}

	private static void recycleRectangle(Rectangle rect) {
	synchronized(tempRectangles) {
	tempRectangles.add(rect);
	}
	}

	/**
	* Sets whether or not <code>getComponentPopupMenu</code> should delegate
	* to the parent if this component does not have a <code>JPopupMenu</code>
	* assigned to it.
	* <p>
	* The default value for this is false, but some <code>JComponent</code>
	* subclasses that are implemented as a number of <code>JComponent</code>s
	* may set this to true.
	* <p>
	* This is a bound property.
	*
	* @param value whether or not the JPopupMenu is inherited
	* @see #setComponentPopupMenu
	* @beaninfo
	* bound: true
	* description: Whether or not the JPopupMenu is inherited
	* @since 1.5
	*/
	public void setInheritsPopupMenu(boolean value) {
	boolean oldValue = getFlag(INHERITS_POPUP_MENU);
	setFlag(INHERITS_POPUP_MENU, value);
	firePropertyChange("inheritsPopupMenu", oldValue, value);
	}

	/**
	* Returns true if the JPopupMenu should be inherited from the parent.
	*
	* @see #setComponentPopupMenu
	* @since 1.5
	*/
	public boolean getInheritsPopupMenu() {
	return getFlag(INHERITS_POPUP_MENU);
	}

	/**
	* Sets the <code>JPopupMenu</code> for this <code>JComponent</code>.
	* The UI is responsible for registering bindings and adding the necessary
	* listeners such that the <code>JPopupMenu</code> will be shown at
	* the appropriate time. When the <code>JPopupMenu</code> is shown
	* depends upon the look and feel: some may show it on a mouse event,
	* some may enable a key binding.
	* <p>
	* If <code>popup</code> is null, and <code>getInheritsPopupMenu</code>
	* returns true, then <code>getComponentPopupMenu</code> will be delegated
	* to the parent. This provides for a way to make all child components
	* inherit the popupmenu of the parent.
	* <p>
	* This is a bound property.
	*
	* @param popup - the popup that will be assigned to this component
	* may be null
	* @see #getComponentPopupMenu
	* @beaninfo
	* bound: true
	* preferred: true
	* description: Popup to show
	* @since 1.5
	*/
	public void setComponentPopupMenu(JPopupMenu popup) {
	if(popup != null) {
	enableEvents(AWTEvent.MOUSE_EVENT_MASK);
	}
	JPopupMenu oldPopup = this.popupMenu;
	this.popupMenu = popup;
	firePropertyChange("componentPopupMenu", oldPopup, popup);
	}

	/**
	* Returns <code>JPopupMenu</code> that assigned for this component.
	* If this component does not have a <code>JPopupMenu</code> assigned
	* to it and <code>getInheritsPopupMenu</code> is true, this
	* will return <code>getParent().getComponentPopupMenu()</code> (assuming
	* the parent is valid.)
	*
	* @return <code>JPopupMenu</code> assigned for this component
	* or <code>null</code> if no popup assigned
	* @see #setComponentPopupMenu
	* @since 1.5
	*/
	public JPopupMenu getComponentPopupMenu() {

	if(!getInheritsPopupMenu()) {
	return popupMenu;
	}

	if(popupMenu == null) {
	// Search parents for its popup
	Container parent = getParent();
	while (parent != null) {
	if(parent instanceof JComponent) {
	return ((JComponent)parent).getComponentPopupMenu();
	}
	if(parent instanceof Window \|\|
	parent instanceof Applet) {
	// Reached toplevel, break and return null
	break;
	}
	parent = parent.getParent();
	}
	return null;
	}

	return popupMenu;
	}

	/**
	* Default <code>JComponent</code> constructor. This constructor does
	* very little initialization beyond calling the <code>Container</code>
	* constructor. For example, the initial layout manager is
	* <code>null</code>. It does, however, set the component's locale
	* property to the value returned by
	* <code>JComponent.getDefaultLocale</code>.
	*
	* @see #getDefaultLocale
	*/
	public JComponent() {
	super();
	// We enable key events on all JComponents so that accessibility
	// bindings will work everywhere. This is a partial fix to BugID
	// 4282211.
	enableEvents(AWTEvent.KEY_EVENT_MASK);
	if (isManagingFocus()) {
	LookAndFeel.installProperty(this,
	"focusTraversalKeysForward",
	getManagingFocusForwardTraversalKeys());
	LookAndFeel.installProperty(this,
	"focusTraversalKeysBackward",
	getManagingFocusBackwardTraversalKeys());
	}

	super.setLocale( JComponent.getDefaultLocale() );
	}


	/**
	* Resets the UI property to a value from the current look and feel.
	* <code>JComponent</code> subclasses must override this method
	* like this:
	* <pre>
	* public void updateUI() {
	* setUI((SliderUI)UIManager.getUI(this);
	* }
	* </pre>
	*
	* @see #setUI
	* @see UIManager#getLookAndFeel
	* @see UIManager#getUI
	*/
	public void updateUI() {}


	/**
	* Sets the look and feel delegate for this component.
	* <code>JComponent</code> subclasses generally override this method
	* to narrow the argument type. For example, in <code>JSlider</code>:
	* <pre>
	* public void setUI(SliderUI newUI) {
	* super.setUI(newUI);
	* }
	* </pre>
	* <p>
	* Additionally <code>JComponent</code> subclasses must provide a
	* <code>getUI</code> method that returns the correct type. For example:
	* <pre>
	* public SliderUI getUI() {
	* return (SliderUI)ui;
	* }
	* </pre>
	*
	* @param newUI the new UI delegate
	* @see #updateUI
	* @see UIManager#getLookAndFeel
	* @see UIManager#getUI
	* @beaninfo
	* bound: true
	* hidden: true
	* attribute: visualUpdate true
	* description: The component's look and feel delegate.
	*/
	protected void setUI(ComponentUI newUI) {
	/* We do not check that the UI instance is different
	* before allowing the switch in order to enable the
	* same UI instance with different default settings
	* to be installed.
	*/

	uninstallUIAndProperties();

	// aaText shouldn't persist between look and feels, reset it.
	aaTextInfo =
	UIManager.getDefaults().get(SwingUtilities2.AA_TEXT_PROPERTY_KEY);
	ComponentUI oldUI = ui;
	ui = newUI;
	if (ui != null) {
	ui.installUI(this);
	}

	firePropertyChange("UI", oldUI, newUI);
	revalidate();
	repaint();
	}

	/**
	* Uninstalls the UI, if any, and any client properties designated
	* as being specific to the installed UI - instances of
	* {@code UIClientPropertyKey}.
	*/
	private void uninstallUIAndProperties() {
	if (ui != null) {
	ui.uninstallUI(this);
	//clean UIClientPropertyKeys from client properties
	if (clientProperties != null) {
	synchronized(clientProperties) {
	Object[] clientPropertyKeys =
	clientProperties.getKeys(null);
	if (clientPropertyKeys != null) {
	for (Object key : clientPropertyKeys) {
	if (key instanceof UIClientPropertyKey) {
	putClientProperty(key, null);
	}
	}
	}
	}
	}
	}
	}

	/**
	* Returns the <code>UIDefaults</code> key used to
	* look up the name of the <code>swing.plaf.ComponentUI</code>
	* class that defines the look and feel
	* for this component. Most applications will never need to
	* call this method. Subclasses of <code>JComponent</code> that support
	* pluggable look and feel should override this method to
	* return a <code>UIDefaults</code> key that maps to the
	* <code>ComponentUI</code> subclass that defines their look and feel.
	*
	* @return the <code>UIDefaults</code> key for a
	* <code>ComponentUI</code> subclass
	* @see UIDefaults#getUI
	* @beaninfo
	* expert: true
	* description: UIClassID
	*/
	public String getUIClassID() {
	return uiClassID;
	}


	/**
	* Returns the graphics object used to paint this component.
	* If <code>DebugGraphics</code> is turned on we create a new
	* <code>DebugGraphics</code> object if necessary.
	* Otherwise we just configure the
	* specified graphics object's foreground and font.
	*
	* @param g the original <code>Graphics</code> object
	* @return a <code>Graphics</code> object configured for this component
	*/
	protected Graphics getComponentGraphics(Graphics g) {
	Graphics componentGraphics = g;
	if (ui != null && DEBUG_GRAPHICS_LOADED) {
	if ((DebugGraphics.debugComponentCount() != 0) &&
	(shouldDebugGraphics() != 0) &&
	!(g instanceof DebugGraphics)) {
	componentGraphics = new DebugGraphics(g,this);
	}
	}
	componentGraphics.setColor(getForeground());
	componentGraphics.setFont(getFont());

	return componentGraphics;
	}


	/**
	* Calls the UI delegate's paint method, if the UI delegate
	* is non-<code>null</code>. We pass the delegate a copy of the
	* <code>Graphics</code> object to protect the rest of the
	* paint code from irrevocable changes
	* (for example, <code>Graphics.translate</code>).
	* <p>
	* If you override this in a subclass you should not make permanent
	* changes to the passed in <code>Graphics</code>. For example, you
	* should not alter the clip <code>Rectangle</code> or modify the
	* transform. If you need to do these operations you may find it
	* easier to create a new <code>Graphics</code> from the passed in
	* <code>Graphics</code> and manipulate it. Further, if you do not
	* invoker super's implementation you must honor the opaque property,
	* that is
	* if this component is opaque, you must completely fill in the background
	* in a non-opaque color. If you do not honor the opaque property you
	* will likely see visual artifacts.
	* <p>
	* The passed in <code>Graphics</code> object might
	* have a transform other than the identify transform
	* installed on it. In this case, you might get
	* unexpected results if you cumulatively apply
	* another transform.
	*
	* @param g the <code>Graphics</code> object to protect
	* @see #paint
	* @see ComponentUI
	*/
	protected void paintComponent(Graphics g) {
	if (ui != null) {
	Graphics scratchGraphics = (g == null) ? null : g.create();
	try {
	ui.update(scratchGraphics, this);
	}
	finally {
	scratchGraphics.dispose();
	}
	}
	}

	/**
	* Paints this component's children.
	* If <code>shouldUseBuffer</code> is true,
	* no component ancestor has a buffer and
	* the component children can use a buffer if they have one.
	* Otherwise, one ancestor has a buffer currently in use and children
	* should not use a buffer to paint.
	* @param g the <code>Graphics</code> context in which to paint
	* @see #paint
	* @see java.awt.Container#paint
	*/
	protected void paintChildren(Graphics g) {
	Graphics sg = g;

	synchronized(getTreeLock()) {
	int i = getComponentCount() - 1;
	if (i < 0) {
	return;
	}
	// If we are only to paint to a specific child, determine
	// its index.
	if (paintingChild != null &&
	(paintingChild instanceof JComponent) &&
	paintingChild.isOpaque()) {
	for (; i >= 0; i--) {
	if (getComponent(i) == paintingChild){
	break;
	}
	}
	}
	Rectangle tmpRect = fetchRectangle();
	boolean checkSiblings = (!isOptimizedDrawingEnabled() &&
	checkIfChildObscuredBySibling());
	Rectangle clipBounds = null;
	if (checkSiblings) {
	clipBounds = sg.getClipBounds();
	if (clipBounds == null) {
	clipBounds = new Rectangle(0, 0, getWidth(),
	getHeight());
	}
	}
	boolean printing = getFlag(IS_PRINTING);
	final Window window = SwingUtilities.getWindowAncestor(this);
	final boolean isWindowOpaque = window == null \|\| window.isOpaque();
	for (; i >= 0 ; i--) {
	Component comp = getComponent(i);
	if (comp == null) {
	continue;
	}

	final boolean isJComponent = comp instanceof JComponent;

	// Enable painting of heavyweights in non-opaque windows.
	// See 6884960
	if ((!isWindowOpaque \|\| isJComponent \|\|
	isLightweightComponent(comp)) && comp.isVisible())
	{
	Rectangle cr;

	cr = comp.getBounds(tmpRect);

	boolean hitClip = g.hitClip(cr.x, cr.y, cr.width,
	cr.height);

	if (hitClip) {
	if (checkSiblings && i > 0) {
	int x = cr.x;
	int y = cr.y;
	int width = cr.width;
	int height = cr.height;
	SwingUtilities.computeIntersection
	(clipBounds.x, clipBounds.y,
	clipBounds.width, clipBounds.height, cr);

	if(getObscuredState(i, cr.x, cr.y, cr.width,
	cr.height) == COMPLETELY_OBSCURED) {
	continue;
	}
	cr.x = x;
	cr.y = y;
	cr.width = width;
	cr.height = height;
	}
	Graphics cg = sg.create(cr.x, cr.y, cr.width,
	cr.height);
	cg.setColor(comp.getForeground());
	cg.setFont(comp.getFont());
	boolean shouldSetFlagBack = false;
	try {
	if(isJComponent) {
	if(getFlag(ANCESTOR_USING_BUFFER)) {
	((JComponent)comp).setFlag(
	ANCESTOR_USING_BUFFER,true);
	shouldSetFlagBack = true;
	}
	if(getFlag(IS_PAINTING_TILE)) {
	((JComponent)comp).setFlag(
	IS_PAINTING_TILE,true);
	shouldSetFlagBack = true;
	}
	if(!printing) {
	comp.paint(cg);
	}
	else {
	if (!getFlag(IS_PRINTING_ALL)) {
	comp.print(cg);
	}
	else {
	comp.printAll(cg);
	}
	}
	} else {
	// The component is either lightweight, or
	// heavyweight in a non-opaque window
	if (!printing) {
	comp.paint(cg);
	}
	else {
	if (!getFlag(IS_PRINTING_ALL)) {
	comp.print(cg);
	}
	else {
	comp.printAll(cg);
	}
	}
	}
	} finally {
	cg.dispose();
	if(shouldSetFlagBack) {
	((JComponent)comp).setFlag(
	ANCESTOR_USING_BUFFER,false);
	((JComponent)comp).setFlag(
	IS_PAINTING_TILE,false);
	}
	}
	}
	}

	}
	recycleRectangle(tmpRect);
	}
	}

	/**
	* Paints the component's border.
	* <p>
	* If you override this in a subclass you should not make permanent
	* changes to the passed in <code>Graphics</code>. For example, you
	* should not alter the clip <code>Rectangle</code> or modify the
	* transform. If you need to do these operations you may find it
	* easier to create a new <code>Graphics</code> from the passed in
	* <code>Graphics</code> and manipulate it.
	*
	* @param g the <code>Graphics</code> context in which to paint
	*
	* @see #paint
	* @see #setBorder
	*/
	protected void paintBorder(Graphics g) {
	Border border = getBorder();
	if (border != null) {
	border.paintBorder(this, g, 0, 0, getWidth(), getHeight());
	}
	}


	/**
	* Calls <code>paint</code>. Doesn't clear the background but see
	* <code>ComponentUI.update</code>, which is called by
	* <code>paintComponent</code>.
	*
	* @param g the <code>Graphics</code> context in which to paint
	* @see #paint
	* @see #paintComponent
	* @see javax.swing.plaf.ComponentUI
	*/
	public void update(Graphics g) {
	paint(g);
	}


	/**
	* Invoked by Swing to draw components.
	* Applications should not invoke <code>paint</code> directly,
	* but should instead use the <code>repaint</code> method to
	* schedule the component for redrawing.
	* <p>
	* This method actually delegates the work of painting to three
	* protected methods: <code>paintComponent</code>,
	* <code>paintBorder</code>,
	* and <code>paintChildren</code>. They're called in the order
	* listed to ensure that children appear on top of component itself.
	* Generally speaking, the component and its children should not
	* paint in the insets area allocated to the border. Subclasses can
	* just override this method, as always. A subclass that just
	* wants to specialize the UI (look and feel) delegate's
	* <code>paint</code> method should just override
	* <code>paintComponent</code>.
	*
	* @param g the <code>Graphics</code> context in which to paint
	* @see #paintComponent
	* @see #paintBorder
	* @see #paintChildren
	* @see #getComponentGraphics
	* @see #repaint
	*/
	public void paint(Graphics g) {
	boolean shouldClearPaintFlags = false;

	if ((getWidth() <= 0) \|\| (getHeight() <= 0)) {
	return;
	}

	Graphics componentGraphics = getComponentGraphics(g);
	Graphics co = componentGraphics.create();
	try {
	RepaintManager repaintManager = RepaintManager.currentManager(this);
	Rectangle clipRect = co.getClipBounds();
	int clipX;
	int clipY;
	int clipW;
	int clipH;
	if (clipRect == null) {
	clipX = clipY = 0;
	clipW = getWidth();
	clipH = getHeight();
	}
	else {
	clipX = clipRect.x;
	clipY = clipRect.y;
	clipW = clipRect.width;
	clipH = clipRect.height;
	}

	if(clipW > getWidth()) {
	clipW = getWidth();
	}
	if(clipH > getHeight()) {
	clipH = getHeight();
	}

	if(getParent() != null && !(getParent() instanceof JComponent)) {
	adjustPaintFlags();
	shouldClearPaintFlags = true;
	}

	int bw,bh;
	boolean printing = getFlag(IS_PRINTING);
	if (!printing && repaintManager.isDoubleBufferingEnabled() &&
	!getFlag(ANCESTOR_USING_BUFFER) && isDoubleBuffered() &&
	(getFlag(IS_REPAINTING) \|\| repaintManager.isPainting()))
	{
	repaintManager.beginPaint();
	try {
	repaintManager.paint(this, this, co, clipX, clipY, clipW,
	clipH);
	} finally {
	repaintManager.endPaint();
	}
	}
	else {
	// Will ocassionaly happen in 1.2, especially when printing.
	if (clipRect == null) {
	co.setClip(clipX, clipY, clipW, clipH);
	}

	if (!rectangleIsObscured(clipX,clipY,clipW,clipH)) {
	if (!printing) {
	paintComponent(co);
	paintBorder(co);
	}
	else {
	printComponent(co);
	printBorder(co);
	}
	}
	if (!printing) {
	paintChildren(co);
	}
	else {
	printChildren(co);
	}
	}
	} finally {
	co.dispose();
	if(shouldClearPaintFlags) {
	setFlag(ANCESTOR_USING_BUFFER,false);
	setFlag(IS_PAINTING_TILE,false);
	setFlag(IS_PRINTING,false);
	setFlag(IS_PRINTING_ALL,false);
	}
	}
	}

	// paint forcing use of the double buffer. This is used for historical
	// reasons: JViewport, when scrolling, previously directly invoked paint
	// while turning off double buffering at the RepaintManager level, this
	// codes simulates that.
	void paintForceDoubleBuffered(Graphics g) {
	RepaintManager rm = RepaintManager.currentManager(this);
	Rectangle clip = g.getClipBounds();
	rm.beginPaint();
	setFlag(IS_REPAINTING, true);
	try {
	rm.paint(this, this, g, clip.x, clip.y, clip.width, clip.height);
	} finally {
	rm.endPaint();
	setFlag(IS_REPAINTING, false);
	}
	}

	/**
	* Returns true if this component, or any of its ancestors, are in
	* the processing of painting.
	*/
	boolean isPainting() {
	Container component = this;
	while (component != null) {
	if (component instanceof JComponent &&
	((JComponent)component).getFlag(ANCESTOR_USING_BUFFER)) {
	return true;
	}
	component = component.getParent();
	}
	return false;
	}

	private void adjustPaintFlags() {
	JComponent jparent;
	Container parent;
	for(parent = getParent() ; parent != null ; parent =
	parent.getParent()) {
	if(parent instanceof JComponent) {
	jparent = (JComponent) parent;
	if(jparent.getFlag(ANCESTOR_USING_BUFFER))
	setFlag(ANCESTOR_USING_BUFFER, true);
	if(jparent.getFlag(IS_PAINTING_TILE))
	setFlag(IS_PAINTING_TILE, true);
	if(jparent.getFlag(IS_PRINTING))
	setFlag(IS_PRINTING, true);
	if(jparent.getFlag(IS_PRINTING_ALL))
	setFlag(IS_PRINTING_ALL, true);
	break;
	}
	}
	}

	/**
	* Invoke this method to print the component. This method invokes
	* <code>print</code> on the component.
	*
	* @param g the <code>Graphics</code> context in which to paint
	* @see #print
	* @see #printComponent
	* @see #printBorder
	* @see #printChildren
	*/
	public void printAll(Graphics g) {
	setFlag(IS_PRINTING_ALL, true);
	try {
	print(g);
	}
	finally {
	setFlag(IS_PRINTING_ALL, false);
	}
	}

	/**
	* Invoke this method to print the component to the specified
	* <code>Graphics</code>. This method will result in invocations
	* of <code>printComponent</code>, <code>printBorder</code> and
	* <code>printChildren</code>. It is recommended that you override
	* one of the previously mentioned methods rather than this one if
	* your intention is to customize the way printing looks. However,
	* it can be useful to override this method should you want to prepare
	* state before invoking the superclass behavior. As an example,
	* if you wanted to change the component's background color before
	* printing, you could do the following:
	* <pre>
	* public void print(Graphics g) {
	* Color orig = getBackground();
	* setBackground(Color.WHITE);
	*
	* // wrap in try/finally so that we always restore the state
	* try {
	* super.print(g);
	* } finally {
	* setBackground(orig);
	* }
	* }
	* </pre>
	* <p>
	* Alternatively, or for components that delegate painting to other objects,
	* you can query during painting whether or not the component is in the
	* midst of a print operation. The <code>isPaintingForPrint</code> method provides
	* this ability and its return value will be changed by this method: to
	* <code>true</code> immediately before rendering and to <code>false</code>
	* immediately after. With each change a property change event is fired on
	* this component with the name <code>"paintingForPrint"</code>.
	* <p>
	* This method sets the component's state such that the double buffer
	* will not be used: painting will be done directly on the passed in
	* <code>Graphics</code>.
	*
	* @param g the <code>Graphics</code> context in which to paint
	* @see #printComponent
	* @see #printBorder
	* @see #printChildren
	* @see #isPaintingForPrint
	*/
	public void print(Graphics g) {
	setFlag(IS_PRINTING, true);
	firePropertyChange("paintingForPrint", false, true);
	try {
	paint(g);
	}
	finally {
	setFlag(IS_PRINTING, false);
	firePropertyChange("paintingForPrint", true, false);
	}
	}

	/**
	* This is invoked during a printing operation. This is implemented to
	* invoke <code>paintComponent</code> on the component. Override this
	* if you wish to add special painting behavior when printing.
	*
	* @param g the <code>Graphics</code> context in which to paint
	* @see #print
	* @since 1.3
	*/
	protected void printComponent(Graphics g) {
	paintComponent(g);
	}

	/**
	* Prints this component's children. This is implemented to invoke
	* <code>paintChildren</code> on the component. Override this if you
	* wish to print the children differently than painting.
	*
	* @param g the <code>Graphics</code> context in which to paint
	* @see #print
	* @since 1.3
	*/
	protected void printChildren(Graphics g) {
	paintChildren(g);
	}

	/**
	* Prints the component's border. This is implemented to invoke
	* <code>paintBorder</code> on the component. Override this if you
	* wish to print the border differently that it is painted.
	*
	* @param g the <code>Graphics</code> context in which to paint
	* @see #print
	* @since 1.3
	*/
	protected void printBorder(Graphics g) {
	paintBorder(g);
	}

	/**
	* Returns true if the component is currently painting a tile.
	* If this method returns true, paint will be called again for another
	* tile. This method returns false if you are not painting a tile or
	* if the last tile is painted.
	* Use this method to keep some state you might need between tiles.
	*
	* @return true if the component is currently painting a tile,
	* false otherwise
	*/
	public boolean isPaintingTile() {
	return getFlag(IS_PAINTING_TILE);
	}

	/**
	* Returns <code>true</code> if the current painting operation on this
	* component is part of a <code>print</code> operation. This method is
	* useful when you want to customize what you print versus what you show
	* on the screen.
	* <p>
	* You can detect changes in the value of this property by listening for
	* property change events on this component with name
	* <code>"paintingForPrint"</code>.
	* <p>
	* Note: This method provides complimentary functionality to that provided
	* by other high level Swing printing APIs. However, it deals strictly with
	* painting and should not be confused as providing information on higher
	* level print processes. For example, a {@link javax.swing.JTable#print()}
	* operation doesn't necessarily result in a continuous rendering of the
	* full component, and the return value of this method can change multiple
	* times during that operation. It is even possible for the component to be
	* painted to the screen while the printing process is ongoing. In such a
	* case, the return value of this method is <code>true</code> when, and only
	* when, the table is being painted as part of the printing process.
	*
	* @return true if the current painting operation on this component
	* is part of a print operation
	* @see #print
	* @since 1.6
	*/
	public final boolean isPaintingForPrint() {
	return getFlag(IS_PRINTING);
	}

	/**
	* In release 1.4, the focus subsystem was rearchitected.
	* For more information, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	* <p>
	* Changes this <code>JComponent</code>'s focus traversal keys to
	* CTRL+TAB and CTRL+SHIFT+TAB. Also prevents
	* <code>SortingFocusTraversalPolicy</code> from considering descendants
	* of this JComponent when computing a focus traversal cycle.
	*
	* @see java.awt.Component#setFocusTraversalKeys
	* @see SortingFocusTraversalPolicy
	* @deprecated As of 1.4, replaced by
	* <code>Component.setFocusTraversalKeys(int, Set)</code> and
	* <code>Container.setFocusCycleRoot(boolean)</code>.
	*/
	@Deprecated
	public boolean isManagingFocus() {
	return false;
	}

	private void registerNextFocusableComponent() {
	registerNextFocusableComponent(getNextFocusableComponent());
	}

	private void registerNextFocusableComponent(Component
	nextFocusableComponent) {
	if (nextFocusableComponent == null) {
	return;
	}

	Container nearestRoot =
	(isFocusCycleRoot()) ? this : getFocusCycleRootAncestor();
	FocusTraversalPolicy policy = nearestRoot.getFocusTraversalPolicy();
	if (!(policy instanceof LegacyGlueFocusTraversalPolicy)) {
	policy = new LegacyGlueFocusTraversalPolicy(policy);
	nearestRoot.setFocusTraversalPolicy(policy);
	}
	((LegacyGlueFocusTraversalPolicy)policy).
	setNextFocusableComponent(this, nextFocusableComponent);
	}

	private void deregisterNextFocusableComponent() {
	Component nextFocusableComponent = getNextFocusableComponent();
	if (nextFocusableComponent == null) {
	return;
	}

	Container nearestRoot =
	(isFocusCycleRoot()) ? this : getFocusCycleRootAncestor();
	if (nearestRoot == null) {
	return;
	}
	FocusTraversalPolicy policy = nearestRoot.getFocusTraversalPolicy();
	if (policy instanceof LegacyGlueFocusTraversalPolicy) {
	((LegacyGlueFocusTraversalPolicy)policy).
	unsetNextFocusableComponent(this, nextFocusableComponent);
	}
	}

	/**
	* In release 1.4, the focus subsystem was rearchitected.
	* For more information, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	* <p>
	* Overrides the default <code>FocusTraversalPolicy</code> for this
	* <code>JComponent</code>'s focus traversal cycle by unconditionally
	* setting the specified <code>Component</code> as the next
	* <code>Component</code> in the cycle, and this <code>JComponent</code>
	* as the specified <code>Component</code>'s previous
	* <code>Component</code> in the cycle.
	*
	* @param aComponent the <code>Component</code> that should follow this
	* <code>JComponent</code> in the focus traversal cycle
	*
	* @see #getNextFocusableComponent
	* @see java.awt.FocusTraversalPolicy
	* @deprecated As of 1.4, replaced by <code>FocusTraversalPolicy</code>
	*/
	@Deprecated
	public void setNextFocusableComponent(Component aComponent) {
	boolean displayable = isDisplayable();
	if (displayable) {
	deregisterNextFocusableComponent();
	}
	putClientProperty(NEXT_FOCUS, aComponent);
	if (displayable) {
	registerNextFocusableComponent(aComponent);
	}
	}

	/**
	* In release 1.4, the focus subsystem was rearchitected.
	* For more information, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	* <p>
	* Returns the <code>Component</code> set by a prior call to
	* <code>setNextFocusableComponent(Component)</code> on this
	* <code>JComponent</code>.
	*
	* @return the <code>Component</code> that will follow this
	* <code>JComponent</code> in the focus traversal cycle, or
	* <code>null</code> if none has been explicitly specified
	*
	* @see #setNextFocusableComponent
	* @deprecated As of 1.4, replaced by <code>FocusTraversalPolicy</code>.
	*/
	@Deprecated
	public Component getNextFocusableComponent() {
	return (Component)getClientProperty(NEXT_FOCUS);
	}

	/**
	* Provides a hint as to whether or not this <code>JComponent</code>
	* should get focus. This is only a hint, and it is up to consumers that
	* are requesting focus to honor this property. This is typically honored
	* for mouse operations, but not keyboard operations. For example, look
	* and feels could verify this property is true before requesting focus
	* during a mouse operation. This would often times be used if you did
	* not want a mouse press on a <code>JComponent</code> to steal focus,
	* but did want the <code>JComponent</code> to be traversable via the
	* keyboard. If you do not want this <code>JComponent</code> focusable at
	* all, use the <code>setFocusable</code> method instead.
	* <p>
	* Please see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>,
	* for more information.
	*
	* @param requestFocusEnabled indicates whether you want this
	* <code>JComponent</code> to be focusable or not
	* @see <a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a>
	* @see java.awt.Component#setFocusable
	*/
	public void setRequestFocusEnabled(boolean requestFocusEnabled) {
	setFlag(REQUEST_FOCUS_DISABLED, !requestFocusEnabled);
	}

	/**
	* Returns <code>true</code> if this <code>JComponent</code> should
	* get focus; otherwise returns <code>false</code>.
	* <p>
	* Please see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>,
	* for more information.
	*
	* @return <code>true</code> if this component should get focus,
	* otherwise returns <code>false</code>
	* @see #setRequestFocusEnabled
	* @see <a href="../../java/awt/doc-files/FocusSpec.html">Focus
	* Specification</a>
	* @see java.awt.Component#isFocusable
	*/
	public boolean isRequestFocusEnabled() {
	return !getFlag(REQUEST_FOCUS_DISABLED);
	}

	/**
	* Requests that this <code>Component</code> gets the input focus.
	* Refer to {@link java.awt.Component#requestFocus()
	* Component.requestFocus()} for a complete description of
	* this method.
	* <p>
	* Note that the use of this method is discouraged because
	* its behavior is platform dependent. Instead we recommend the
	* use of {@link #requestFocusInWindow() requestFocusInWindow()}.
	* If you would like more information on focus, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	*
	* @see java.awt.Component#requestFocusInWindow()
	* @see java.awt.Component#requestFocusInWindow(boolean)
	* @since 1.4
	*/
	public void requestFocus() {
	super.requestFocus();
	}

	/**
	* Requests that this <code>Component</code> gets the input focus.
	* Refer to {@link java.awt.Component#requestFocus(boolean)
	* Component.requestFocus(boolean)} for a complete description of
	* this method.
	* <p>
	* Note that the use of this method is discouraged because
	* its behavior is platform dependent. Instead we recommend the
	* use of {@link #requestFocusInWindow(boolean)
	* requestFocusInWindow(boolean)}.
	* If you would like more information on focus, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	*
	* @param temporary boolean indicating if the focus change is temporary
	* @return <code>false</code> if the focus change request is guaranteed to
	* fail; <code>true</code> if it is likely to succeed
	* @see java.awt.Component#requestFocusInWindow()
	* @see java.awt.Component#requestFocusInWindow(boolean)
	* @since 1.4
	*/
	public boolean requestFocus(boolean temporary) {
	return super.requestFocus(temporary);
	}

	/**
	* Requests that this <code>Component</code> gets the input focus.
	* Refer to {@link java.awt.Component#requestFocusInWindow()
	* Component.requestFocusInWindow()} for a complete description of
	* this method.
	* <p>
	* If you would like more information on focus, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	*
	* @return <code>false</code> if the focus change request is guaranteed to
	* fail; <code>true</code> if it is likely to succeed
	* @see java.awt.Component#requestFocusInWindow()
	* @see java.awt.Component#requestFocusInWindow(boolean)
	* @since 1.4
	*/
	public boolean requestFocusInWindow() {
	return super.requestFocusInWindow();
	}

	/**
	* Requests that this <code>Component</code> gets the input focus.
	* Refer to {@link java.awt.Component#requestFocusInWindow(boolean)
	* Component.requestFocusInWindow(boolean)} for a complete description of
	* this method.
	* <p>
	* If you would like more information on focus, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	*
	* @param temporary boolean indicating if the focus change is temporary
	* @return <code>false</code> if the focus change request is guaranteed to
	* fail; <code>true</code> if it is likely to succeed
	* @see java.awt.Component#requestFocusInWindow()
	* @see java.awt.Component#requestFocusInWindow(boolean)
	* @since 1.4
	*/
	protected boolean requestFocusInWindow(boolean temporary) {
	return super.requestFocusInWindow(temporary);
	}

	/**
	* Requests that this Component get the input focus, and that this
	* Component's top-level ancestor become the focused Window. This component
	* must be displayable, visible, and focusable for the request to be
	* granted.
	* <p>
	* This method is intended for use by focus implementations. Client code
	* should not use this method; instead, it should use
	* <code>requestFocusInWindow()</code>.
	*
	* @see #requestFocusInWindow()
	*/
	public void grabFocus() {
	requestFocus();
	}

	/**
	* Sets the value to indicate whether input verifier for the
	* current focus owner will be called before this component requests
	* focus. The default is true. Set to false on components such as a
	* Cancel button or a scrollbar, which should activate even if the
	* input in the current focus owner is not "passed" by the input
	* verifier for that component.
	*
	* @param verifyInputWhenFocusTarget value for the
	* <code>verifyInputWhenFocusTarget</code> property
	* @see InputVerifier
	* @see #setInputVerifier
	* @see #getInputVerifier
	* @see #getVerifyInputWhenFocusTarget
	*
	* @since 1.3
	* @beaninfo
	* bound: true
	* description: Whether the Component verifies input before accepting
	* focus.
	*/
	public void setVerifyInputWhenFocusTarget(boolean
	verifyInputWhenFocusTarget) {
	boolean oldVerifyInputWhenFocusTarget =
	this.verifyInputWhenFocusTarget;
	this.verifyInputWhenFocusTarget = verifyInputWhenFocusTarget;
	firePropertyChange("verifyInputWhenFocusTarget",
	oldVerifyInputWhenFocusTarget,
	verifyInputWhenFocusTarget);
	}

	/**
	* Returns the value that indicates whether the input verifier for the
	* current focus owner will be called before this component requests
	* focus.
	*
	* @return value of the <code>verifyInputWhenFocusTarget</code> property
	*
	* @see InputVerifier
	* @see #setInputVerifier
	* @see #getInputVerifier
	* @see #setVerifyInputWhenFocusTarget
	*
	* @since 1.3
	*/
	public boolean getVerifyInputWhenFocusTarget() {
	return verifyInputWhenFocusTarget;
	}


	/**
	* Gets the <code>FontMetrics</code> for the specified <code>Font</code>.
	*
	* @param font the font for which font metrics is to be
	* obtained
	* @return the font metrics for <code>font</code>
	* @throws NullPointerException if <code>font</code> is null
	* @since 1.5
	*/
	public FontMetrics getFontMetrics(Font font) {
	return SwingUtilities2.getFontMetrics(this, font);
	}


	/**
	* Sets the preferred size of this component.
	* If <code>preferredSize</code> is <code>null</code>, the UI will
	* be asked for the preferred size.
	* @beaninfo
	* preferred: true
	* bound: true
	* description: The preferred size of the component.
	*/
	public void setPreferredSize(Dimension preferredSize) {
	super.setPreferredSize(preferredSize);
	}


	/**
	* If the <code>preferredSize</code> has been set to a
	* non-<code>null</code> value just returns it.
	* If the UI delegate's <code>getPreferredSize</code>
	* method returns a non <code>null</code> value then return that;
	* otherwise defer to the component's layout manager.
	*
	* @return the value of the <code>preferredSize</code> property
	* @see #setPreferredSize
	* @see ComponentUI
	*/
	@Transient
	public Dimension getPreferredSize() {
	if (isPreferredSizeSet()) {
	return super.getPreferredSize();
	}
	Dimension size = null;
	if (ui != null) {
	size = ui.getPreferredSize(this);
	}
	return (size != null) ? size : super.getPreferredSize();
	}


	/**
	* Sets the maximum size of this component to a constant
	* value. Subsequent calls to <code>getMaximumSize</code> will always
	* return this value; the component's UI will not be asked
	* to compute it. Setting the maximum size to <code>null</code>
	* restores the default behavior.
	*
	* @param maximumSize a <code>Dimension</code> containing the
	* desired maximum allowable size
	* @see #getMaximumSize
	* @beaninfo
	* bound: true
	* description: The maximum size of the component.
	*/
	public void setMaximumSize(Dimension maximumSize) {
	super.setMaximumSize(maximumSize);
	}


	/**
	* If the maximum size has been set to a non-<code>null</code> value
	* just returns it. If the UI delegate's <code>getMaximumSize</code>
	* method returns a non-<code>null</code> value then return that;
	* otherwise defer to the component's layout manager.
	*
	* @return the value of the <code>maximumSize</code> property
	* @see #setMaximumSize
	* @see ComponentUI
	*/
	@Transient
	public Dimension getMaximumSize() {
	if (isMaximumSizeSet()) {
	return super.getMaximumSize();
	}
	Dimension size = null;
	if (ui != null) {
	size = ui.getMaximumSize(this);
	}
	return (size != null) ? size : super.getMaximumSize();
	}


	/**
	* Sets the minimum size of this component to a constant
	* value. Subsequent calls to <code>getMinimumSize</code> will always
	* return this value; the component's UI will not be asked
	* to compute it. Setting the minimum size to <code>null</code>
	* restores the default behavior.
	*
	* @param minimumSize the new minimum size of this component
	* @see #getMinimumSize
	* @beaninfo
	* bound: true
	* description: The minimum size of the component.
	*/
	public void setMinimumSize(Dimension minimumSize) {
	super.setMinimumSize(minimumSize);
	}

	/**
	* If the minimum size has been set to a non-<code>null</code> value
	* just returns it. If the UI delegate's <code>getMinimumSize</code>
	* method returns a non-<code>null</code> value then return that; otherwise
	* defer to the component's layout manager.
	*
	* @return the value of the <code>minimumSize</code> property
	* @see #setMinimumSize
	* @see ComponentUI
	*/
	@Transient
	public Dimension getMinimumSize() {
	if (isMinimumSizeSet()) {
	return super.getMinimumSize();
	}
	Dimension size = null;
	if (ui != null) {
	size = ui.getMinimumSize(this);
	}
	return (size != null) ? size : super.getMinimumSize();
	}

	/**
	* Gives the UI delegate an opportunity to define the precise
	* shape of this component for the sake of mouse processing.
	*
	* @return true if this component logically contains x,y
	* @see java.awt.Component#contains(int, int)
	* @see ComponentUI
	*/
	public boolean contains(int x, int y) {
	return (ui != null) ? ui.contains(this, x, y) : super.contains(x, y);
	}

	/**
	* Sets the border of this component. The <code>Border</code> object is
	* responsible for defining the insets for the component
	* (overriding any insets set directly on the component) and
	* for optionally rendering any border decorations within the
	* bounds of those insets. Borders should be used (rather
	* than insets) for creating both decorative and non-decorative
	* (such as margins and padding) regions for a swing component.
	* Compound borders can be used to nest multiple borders within a
	* single component.
	* <p>
	* Although technically you can set the border on any object
	* that inherits from <code>JComponent</code>, the look and
	* feel implementation of many standard Swing components
	* doesn't work well with user-set borders. In general,
	* when you want to set a border on a standard Swing
	* component other than <code>JPanel</code> or <code>JLabel</code>,
	* we recommend that you put the component in a <code>JPanel</code>
	* and set the border on the <code>JPanel</code>.
	* <p>
	* This is a bound property.
	*
	* @param border the border to be rendered for this component
	* @see Border
	* @see CompoundBorder
	* @beaninfo
	* bound: true
	* preferred: true
	* attribute: visualUpdate true
	* description: The component's border.
	*/
	public void setBorder(Border border) {
	Border oldBorder = this.border;

	this.border = border;
	firePropertyChange("border", oldBorder, border);
	if (border != oldBorder) {
	if (border == null \|\| oldBorder == null \|\|
	!(border.getBorderInsets(this).equals(oldBorder.getBorderInsets(this)))) {
	revalidate();
	}
	repaint();
	}
	}

	/**
	* Returns the border of this component or <code>null</code> if no
	* border is currently set.
	*
	* @return the border object for this component
	* @see #setBorder
	*/
	public Border getBorder() {
	return border;
	}

	/**
	* If a border has been set on this component, returns the
	* border's insets; otherwise calls <code>super.getInsets</code>.
	*
	* @return the value of the insets property
	* @see #setBorder
	*/
	public Insets getInsets() {
	if (border != null) {
	return border.getBorderInsets(this);
	}
	return super.getInsets();
	}

	/**
	* Returns an <code>Insets</code> object containing this component's inset
	* values. The passed-in <code>Insets</code> object will be reused
	* if possible.
	* Calling methods cannot assume that the same object will be returned,
	* however. All existing values within this object are overwritten.
	* If <code>insets</code> is null, this will allocate a new one.
	*
	* @param insets the <code>Insets</code> object, which can be reused
	* @return the <code>Insets</code> object
	* @see #getInsets
	* @beaninfo
	* expert: true
	*/
	public Insets getInsets(Insets insets) {
	if (insets == null) {
	insets = new Insets(0, 0, 0, 0);
	}
	if (border != null) {
	if (border instanceof AbstractBorder) {
	return ((AbstractBorder)border).getBorderInsets(this, insets);
	} else {
	// Can't reuse border insets because the Border interface
	// can't be enhanced.
	return border.getBorderInsets(this);
	}
	} else {
	// super.getInsets() always returns an Insets object with
	// all of its value zeroed. No need for a new object here.
	insets.left = insets.top = insets.right = insets.bottom = 0;
	return insets;
	}
	}

	/**
	* Overrides <code>Container.getAlignmentY</code> to return
	* the horizontal alignment.
	*
	* @return the value of the <code>alignmentY</code> property
	* @see #setAlignmentY
	* @see java.awt.Component#getAlignmentY
	*/
	public float getAlignmentY() {
	if (isAlignmentYSet) {
	return alignmentY;
	}
	return super.getAlignmentY();
	}

	/**
	* Sets the the horizontal alignment.
	*
	* @param alignmentY the new horizontal alignment
	* @see #getAlignmentY
	* @beaninfo
	* description: The preferred vertical alignment of the component.
	*/
	public void setAlignmentY(float alignmentY) {
	this.alignmentY = alignmentY > 1.0f ? 1.0f : alignmentY < 0.0f ? 0.0f : alignmentY;
	isAlignmentYSet = true;
	}


	/**
	* Overrides <code>Container.getAlignmentX</code> to return
	* the vertical alignment.
	*
	* @return the value of the <code>alignmentX</code> property
	* @see #setAlignmentX
	* @see java.awt.Component#getAlignmentX
	*/
	public float getAlignmentX() {
	if (isAlignmentXSet) {
	return alignmentX;
	}
	return super.getAlignmentX();
	}

	/**
	* Sets the the vertical alignment.
	*
	* @param alignmentX the new vertical alignment
	* @see #getAlignmentX
	* @beaninfo
	* description: The preferred horizontal alignment of the component.
	*/
	public void setAlignmentX(float alignmentX) {
	this.alignmentX = alignmentX > 1.0f ? 1.0f : alignmentX < 0.0f ? 0.0f : alignmentX;
	isAlignmentXSet = true;
	}

	/**
	* Sets the input verifier for this component.
	*
	* @param inputVerifier the new input verifier
	* @since 1.3
	* @see InputVerifier
	* @beaninfo
	* bound: true
	* description: The component's input verifier.
	*/
	public void setInputVerifier(InputVerifier inputVerifier) {
	InputVerifier oldInputVerifier = (InputVerifier)getClientProperty(
	JComponent_INPUT_VERIFIER);
	putClientProperty(JComponent_INPUT_VERIFIER, inputVerifier);
	firePropertyChange("inputVerifier", oldInputVerifier, inputVerifier);
	}

	/**
	* Returns the input verifier for this component.
	*
	* @return the <code>inputVerifier</code> property
	* @since 1.3
	* @see InputVerifier
	*/
	public InputVerifier getInputVerifier() {
	return (InputVerifier)getClientProperty(JComponent_INPUT_VERIFIER);
	}

	/**
	* Returns this component's graphics context, which lets you draw
	* on a component. Use this method to get a <code>Graphics</code> object and
	* then invoke operations on that object to draw on the component.
	* @return this components graphics context
	*/
	public Graphics getGraphics() {
	if (DEBUG_GRAPHICS_LOADED && shouldDebugGraphics() != 0) {
	DebugGraphics graphics = new DebugGraphics(super.getGraphics(),
	this);
	return graphics;
	}
	return super.getGraphics();
	}


	/** Enables or disables diagnostic information about every graphics
	* operation performed within the component or one of its children.
	*
	* @param debugOptions determines how the component should display
	* the information; one of the following options:
	* <ul>
	* <li>DebugGraphics.LOG_OPTION - causes a text message to be printed.
	* <li>DebugGraphics.FLASH_OPTION - causes the drawing to flash several
	* times.
	* <li>DebugGraphics.BUFFERED_OPTION - creates an
	* <code>ExternalWindow</code> that displays the operations
	* performed on the View's offscreen buffer.
	* <li>DebugGraphics.NONE_OPTION disables debugging.
	* <li>A value of 0 causes no changes to the debugging options.
	* </ul>
	* <code>debugOptions</code> is bitwise OR'd into the current value
	*
	* @beaninfo
	* preferred: true
	* enum: NONE_OPTION DebugGraphics.NONE_OPTION
	* LOG_OPTION DebugGraphics.LOG_OPTION
	* FLASH_OPTION DebugGraphics.FLASH_OPTION
	* BUFFERED_OPTION DebugGraphics.BUFFERED_OPTION
	* description: Diagnostic options for graphics operations.
	*/
	public void setDebugGraphicsOptions(int debugOptions) {
	DebugGraphics.setDebugOptions(this, debugOptions);
	}

	/** Returns the state of graphics debugging.
	*
	* @return a bitwise OR'd flag of zero or more of the following options:
	* <ul>
	* <li>DebugGraphics.LOG_OPTION - causes a text message to be printed.
	* <li>DebugGraphics.FLASH_OPTION - causes the drawing to flash several
	* times.
	* <li>DebugGraphics.BUFFERED_OPTION - creates an
	* <code>ExternalWindow</code> that displays the operations
	* performed on the View's offscreen buffer.
	* <li>DebugGraphics.NONE_OPTION disables debugging.
	* <li>A value of 0 causes no changes to the debugging options.
	* </ul>
	* @see #setDebugGraphicsOptions
	*/
	public int getDebugGraphicsOptions() {
	return DebugGraphics.getDebugOptions(this);
	}


	/**
	* Returns true if debug information is enabled for this
	* <code>JComponent</code> or one of its parents.
	*/
	int shouldDebugGraphics() {
	return DebugGraphics.shouldComponentDebug(this);
	}

	/**
	* This method is now obsolete, please use a combination of
	* <code>getActionMap()</code> and <code>getInputMap()</code> for
	* similar behavior. For example, to bind the <code>KeyStroke</code>
	* <code>aKeyStroke</code> to the <code>Action</code> <code>anAction</code>
	* now use:
	* <pre>
	* component.getInputMap().put(aKeyStroke, aCommand);
	* component.getActionMap().put(aCommmand, anAction);
	* </pre>
	* The above assumes you want the binding to be applicable for
	* <code>WHEN_FOCUSED</code>. To register bindings for other focus
	* states use the <code>getInputMap</code> method that takes an integer.
	* <p>
	* Register a new keyboard action.
	* <code>anAction</code> will be invoked if a key event matching
	* <code>aKeyStroke</code> occurs and <code>aCondition</code> is verified.
	* The <code>KeyStroke</code> object defines a
	* particular combination of a keyboard key and one or more modifiers
	* (alt, shift, ctrl, meta).
	* <p>
	* The <code>aCommand</code> will be set in the delivered event if
	* specified.
	* <p>
	* The <code>aCondition</code> can be one of:
	* <blockquote>
	* <DL>
	* <DT>WHEN_FOCUSED
	* <DD>The action will be invoked only when the keystroke occurs
	* while the component has the focus.
	* <DT>WHEN_IN_FOCUSED_WINDOW
	* <DD>The action will be invoked when the keystroke occurs while
	* the component has the focus or if the component is in the
	* window that has the focus. Note that the component need not
	* be an immediate descendent of the window -- it can be
	* anywhere in the window's containment hierarchy. In other
	* words, whenever <em>any</em> component in the window has the focus,
	* the action registered with this component is invoked.
	* <DT>WHEN_ANCESTOR_OF_FOCUSED_COMPONENT
	* <DD>The action will be invoked when the keystroke occurs while the
	* component has the focus or if the component is an ancestor of
	* the component that has the focus.
	* </DL>
	* </blockquote>
	* <p>
	* The combination of keystrokes and conditions lets you define high
	* level (semantic) action events for a specified keystroke+modifier
	* combination (using the KeyStroke class) and direct to a parent or
	* child of a component that has the focus, or to the component itself.
	* In other words, in any hierarchical structure of components, an
	* arbitrary key-combination can be immediately directed to the
	* appropriate component in the hierarchy, and cause a specific method
	* to be invoked (usually by way of adapter objects).
	* <p>
	* If an action has already been registered for the receiving
	* container, with the same charCode and the same modifiers,
	* <code>anAction</code> will replace the action.
	*
	* @param anAction the <code>Action</code> to be registered
	* @param aCommand the command to be set in the delivered event
	* @param aKeyStroke the <code>KeyStroke</code> to bind to the action
	* @param aCondition the condition that needs to be met, see above
	* @see KeyStroke
	*/
	public void registerKeyboardAction(ActionListener anAction,String aCommand,KeyStroke aKeyStroke,int aCondition) {

	InputMap inputMap = getInputMap(aCondition, true);

	if (inputMap != null) {
	ActionMap actionMap = getActionMap(true);
	ActionStandin action = new ActionStandin(anAction, aCommand);
	inputMap.put(aKeyStroke, action);
	if (actionMap != null) {
	actionMap.put(action, action);
	}
	}
	}

	/**
	* Registers any bound <code>WHEN_IN_FOCUSED_WINDOW</code> actions with
	* the <code>KeyboardManager</code>. If <code>onlyIfNew</code>
	* is true only actions that haven't been registered are pushed
	* to the <code>KeyboardManager</code>;
	* otherwise all actions are pushed to the <code>KeyboardManager</code>.
	*
	* @param onlyIfNew if true, only actions that haven't been registered
	* are pushed to the <code>KeyboardManager</code>
	*/
	private void registerWithKeyboardManager(boolean onlyIfNew) {
	InputMap inputMap = getInputMap(WHEN_IN_FOCUSED_WINDOW, false);
	KeyStroke[] strokes;
	Hashtable<KeyStroke, KeyStroke> registered =
	(Hashtable<KeyStroke, KeyStroke>)getClientProperty
	(WHEN_IN_FOCUSED_WINDOW_BINDINGS);

	if (inputMap != null) {
	// Push any new KeyStrokes to the KeyboardManager.
	strokes = inputMap.allKeys();
	if (strokes != null) {
	for (int counter = strokes.length - 1; counter >= 0;
	counter--) {
	if (!onlyIfNew \|\| registered == null \|\|
	registered.get(strokes[counter]) == null) {
	registerWithKeyboardManager(strokes[counter]);
	}
	if (registered != null) {
	registered.remove(strokes[counter]);
	}
	}
	}
	}
	else {
	strokes = null;
	}
	// Remove any old ones.
	if (registered != null && registered.size() > 0) {
	Enumeration<KeyStroke> keys = registered.keys();

	while (keys.hasMoreElements()) {
	KeyStroke ks = keys.nextElement();
	unregisterWithKeyboardManager(ks);
	}
	registered.clear();
	}
	// Updated the registered Hashtable.
	if (strokes != null && strokes.length > 0) {
	if (registered == null) {
	registered = new Hashtable<KeyStroke, KeyStroke>(strokes.length);
	putClientProperty(WHEN_IN_FOCUSED_WINDOW_BINDINGS, registered);
	}
	for (int counter = strokes.length - 1; counter >= 0; counter--) {
	registered.put(strokes[counter], strokes[counter]);
	}
	}
	else {
	putClientProperty(WHEN_IN_FOCUSED_WINDOW_BINDINGS, null);
	}
	}

	/**
	* Unregisters all the previously registered
	* <code>WHEN_IN_FOCUSED_WINDOW</code> <code>KeyStroke</code> bindings.
	*/
	private void unregisterWithKeyboardManager() {
	Hashtable<KeyStroke, KeyStroke> registered =
	(Hashtable<KeyStroke, KeyStroke>)getClientProperty
	(WHEN_IN_FOCUSED_WINDOW_BINDINGS);

	if (registered != null && registered.size() > 0) {
	Enumeration<KeyStroke> keys = registered.keys();

	while (keys.hasMoreElements()) {
	KeyStroke ks = keys.nextElement();
	unregisterWithKeyboardManager(ks);
	}
	}
	putClientProperty(WHEN_IN_FOCUSED_WINDOW_BINDINGS, null);
	}

	/**
	* Invoked from <code>ComponentInputMap</code> when its bindings change.
	* If <code>inputMap</code> is the current <code>windowInputMap</code>
	* (or a parent of the window <code>InputMap</code>)
	* the <code>KeyboardManager</code> is notified of the new bindings.
	*
	* @param inputMap the map containing the new bindings
	*/
	void componentInputMapChanged(ComponentInputMap inputMap) {
	InputMap km = getInputMap(WHEN_IN_FOCUSED_WINDOW, false);

	while (km != inputMap && km != null) {
	km = km.getParent();
	}
	if (km != null) {
	registerWithKeyboardManager(false);
	}
	}

	private void registerWithKeyboardManager(KeyStroke aKeyStroke) {
	KeyboardManager.getCurrentManager().registerKeyStroke(aKeyStroke,this);
	}

	private void unregisterWithKeyboardManager(KeyStroke aKeyStroke) {
	KeyboardManager.getCurrentManager().unregisterKeyStroke(aKeyStroke,
	this);
	}

	/**
	* This method is now obsolete, please use a combination of
	* <code>getActionMap()</code> and <code>getInputMap()</code> for
	* similar behavior.
	*/
	public void registerKeyboardAction(ActionListener anAction,KeyStroke aKeyStroke,int aCondition) {
	registerKeyboardAction(anAction,null,aKeyStroke,aCondition);
	}

	/**
	* This method is now obsolete. To unregister an existing binding
	* you can either remove the binding from the
	* <code>ActionMap/InputMap</code>, or place a dummy binding the
	* <code>InputMap</code>. Removing the binding from the
	* <code>InputMap</code> allows bindings in parent <code>InputMap</code>s
	* to be active, whereas putting a dummy binding in the
	* <code>InputMap</code> effectively disables
	* the binding from ever happening.
	* <p>
	* Unregisters a keyboard action.
	* This will remove the binding from the <code>ActionMap</code>
	* (if it exists) as well as the <code>InputMap</code>s.
	*/
	public void unregisterKeyboardAction(KeyStroke aKeyStroke) {
	ActionMap am = getActionMap(false);
	for (int counter = 0; counter < 3; counter++) {
	InputMap km = getInputMap(counter, false);
	if (km != null) {
	Object actionID = km.get(aKeyStroke);

	if (am != null && actionID != null) {
	am.remove(actionID);
	}
	km.remove(aKeyStroke);
	}
	}
	}

	/**
	* Returns the <code>KeyStrokes</code> that will initiate
	* registered actions.
	*
	* @return an array of <code>KeyStroke</code> objects
	* @see #registerKeyboardAction
	*/
	public KeyStroke[] getRegisteredKeyStrokes() {
	int[] counts = new int[3];
	KeyStroke[][] strokes = new KeyStroke[3][];

	for (int counter = 0; counter < 3; counter++) {
	InputMap km = getInputMap(counter, false);
	strokes[counter] = (km != null) ? km.allKeys() : null;
	counts[counter] = (strokes[counter] != null) ?
	strokes[counter].length : 0;
	}
	KeyStroke[] retValue = new KeyStroke[counts[0] + counts[1] +
	counts[2]];
	for (int counter = 0, last = 0; counter < 3; counter++) {
	if (counts[counter] > 0) {
	System.arraycopy(strokes[counter], 0, retValue, last,
	counts[counter]);
	last += counts[counter];
	}
	}
	return retValue;
	}

	/**
	* Returns the condition that determines whether a registered action
	* occurs in response to the specified keystroke.
	* <p>
	* For Java 2 platform v1.3, a <code>KeyStroke</code> can be associated
	* with more than one condition.
	* For example, 'a' could be bound for the two
	* conditions <code>WHEN_FOCUSED</code> and
	* <code>WHEN_IN_FOCUSED_WINDOW</code> condition.
	*
	* @return the action-keystroke condition
	*/
	public int getConditionForKeyStroke(KeyStroke aKeyStroke) {
	for (int counter = 0; counter < 3; counter++) {
	InputMap inputMap = getInputMap(counter, false);
	if (inputMap != null && inputMap.get(aKeyStroke) != null) {
	return counter;
	}
	}
	return UNDEFINED_CONDITION;
	}

	/**
	* Returns the object that will perform the action registered for a
	* given keystroke.
	*
	* @return the <code>ActionListener</code>
	* object invoked when the keystroke occurs
	*/
	public ActionListener getActionForKeyStroke(KeyStroke aKeyStroke) {
	ActionMap am = getActionMap(false);

	if (am == null) {
	return null;
	}
	for (int counter = 0; counter < 3; counter++) {
	InputMap inputMap = getInputMap(counter, false);
	if (inputMap != null) {
	Object actionBinding = inputMap.get(aKeyStroke);

	if (actionBinding != null) {
	Action action = am.get(actionBinding);
	if (action instanceof ActionStandin) {
	return ((ActionStandin)action).actionListener;
	}
	return action;
	}
	}
	}
	return null;
	}

	/**
	* Unregisters all the bindings in the first tier <code>InputMaps</code>
	* and <code>ActionMap</code>. This has the effect of removing any
	* local bindings, and allowing the bindings defined in parent
	* <code>InputMap/ActionMaps</code>
	* (the UI is usually defined in the second tier) to persist.
	*/
	public void resetKeyboardActions() {
	// Keys
	for (int counter = 0; counter < 3; counter++) {
	InputMap inputMap = getInputMap(counter, false);

	if (inputMap != null) {
	inputMap.clear();
	}
	}

	// Actions
	ActionMap am = getActionMap(false);

	if (am != null) {
	am.clear();
	}
	}

	/**
	* Sets the <code>InputMap</code> to use under the condition
	* <code>condition</code> to
	* <code>map</code>. A <code>null</code> value implies you
	* do not want any bindings to be used, even from the UI. This will
	* not reinstall the UI <code>InputMap</code> (if there was one).
	* <code>condition</code> has one of the following values:
	* <ul>
	* <li><code>WHEN_IN_FOCUSED_WINDOW</code>
	* <li><code>WHEN_FOCUSED</code>
	* <li><code>WHEN_ANCESTOR_OF_FOCUSED_COMPONENT</code>
	* </ul>
	* If <code>condition</code> is <code>WHEN_IN_FOCUSED_WINDOW</code>
	* and <code>map</code> is not a <code>ComponentInputMap</code>, an
	* <code>IllegalArgumentException</code> will be thrown.
	* Similarly, if <code>condition</code> is not one of the values
	* listed, an <code>IllegalArgumentException</code> will be thrown.
	*
	* @param condition one of the values listed above
	* @param map the <code>InputMap</code> to use for the given condition
	* @exception IllegalArgumentException if <code>condition</code> is
	* <code>WHEN_IN_FOCUSED_WINDOW</code> and <code>map</code>
	* is not an instance of <code>ComponentInputMap</code>; or
	* if <code>condition</code> is not one of the legal values
	* specified above
	* @since 1.3
	*/
	public final void setInputMap(int condition, InputMap map) {
	switch (condition) {
	case WHEN_IN_FOCUSED_WINDOW:
	if (map != null && !(map instanceof ComponentInputMap)) {
	throw new IllegalArgumentException("WHEN_IN_FOCUSED_WINDOW InputMaps must be of type ComponentInputMap");
	}
	windowInputMap = (ComponentInputMap)map;
	setFlag(WIF_INPUTMAP_CREATED, true);
	registerWithKeyboardManager(false);
	break;
	case WHEN_ANCESTOR_OF_FOCUSED_COMPONENT:
	ancestorInputMap = map;
	setFlag(ANCESTOR_INPUTMAP_CREATED, true);
	break;
	case WHEN_FOCUSED:
	focusInputMap = map;
	setFlag(FOCUS_INPUTMAP_CREATED, true);
	break;
	default:
	throw new IllegalArgumentException("condition must be one of JComponent.WHEN_IN_FOCUSED_WINDOW, JComponent.WHEN_FOCUSED or JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT");
	}
	}

	/**
	* Returns the <code>InputMap</code> that is used during
	* <code>condition</code>.
	*
	* @param condition one of WHEN_IN_FOCUSED_WINDOW, WHEN_FOCUSED,
	* WHEN_ANCESTOR_OF_FOCUSED_COMPONENT
	* @return the <code>InputMap</code> for the specified
	* <code>condition</code>
	* @since 1.3
	*/
	public final InputMap getInputMap(int condition) {
	return getInputMap(condition, true);
	}

	/**
	* Returns the <code>InputMap</code> that is used when the
	* component has focus.
	* This is convenience method for <code>getInputMap(WHEN_FOCUSED)</code>.
	*
	* @return the <code>InputMap</code> used when the component has focus
	* @since 1.3
	*/
	public final InputMap getInputMap() {
	return getInputMap(WHEN_FOCUSED, true);
	}

	/**
	* Sets the <code>ActionMap</code> to <code>am</code>. This does not set
	* the parent of the <code>am</code> to be the <code>ActionMap</code>
	* from the UI (if there was one), it is up to the caller to have done this.
	*
	* @param am the new <code>ActionMap</code>
	* @since 1.3
	*/
	public final void setActionMap(ActionMap am) {
	actionMap = am;
	setFlag(ACTIONMAP_CREATED, true);
	}

	/**
	* Returns the <code>ActionMap</code> used to determine what
	* <code>Action</code> to fire for particular <code>KeyStroke</code>
	* binding. The returned <code>ActionMap</code>, unless otherwise
	* set, will have the <code>ActionMap</code> from the UI set as the parent.
	*
	* @return the <code>ActionMap</code> containing the key/action bindings
	* @since 1.3
	*/
	public final ActionMap getActionMap() {
	return getActionMap(true);
	}

	/**
	* Returns the <code>InputMap</code> to use for condition
	* <code>condition</code>. If the <code>InputMap</code> hasn't
	* been created, and <code>create</code> is
	* true, it will be created.
	*
	* @param condition one of the following values:
	* <ul>
	* <li>JComponent.FOCUS_INPUTMAP_CREATED
	* <li>JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT
	* <li>JComponent.WHEN_IN_FOCUSED_WINDOW
	* </ul>
	* @param create if true, create the <code>InputMap</code> if it
	* is not already created
	* @return the <code>InputMap</code> for the given <code>condition</code>;
	* if <code>create</code> is false and the <code>InputMap</code>
	* hasn't been created, returns <code>null</code>
	* @exception IllegalArgumentException if <code>condition</code>
	* is not one of the legal values listed above
	*/
	final InputMap getInputMap(int condition, boolean create) {
	switch (condition) {
	case WHEN_FOCUSED:
	if (getFlag(FOCUS_INPUTMAP_CREATED)) {
	return focusInputMap;
	}
	// Hasn't been created yet.
	if (create) {
	InputMap km = new InputMap();
	setInputMap(condition, km);
	return km;
	}
	break;
	case WHEN_ANCESTOR_OF_FOCUSED_COMPONENT:
	if (getFlag(ANCESTOR_INPUTMAP_CREATED)) {
	return ancestorInputMap;
	}
	// Hasn't been created yet.
	if (create) {
	InputMap km = new InputMap();
	setInputMap(condition, km);
	return km;
	}
	break;
	case WHEN_IN_FOCUSED_WINDOW:
	if (getFlag(WIF_INPUTMAP_CREATED)) {
	return windowInputMap;
	}
	// Hasn't been created yet.
	if (create) {
	ComponentInputMap km = new ComponentInputMap(this);
	setInputMap(condition, km);
	return km;
	}
	break;
	default:
	throw new IllegalArgumentException("condition must be one of JComponent.WHEN_IN_FOCUSED_WINDOW, JComponent.WHEN_FOCUSED or JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT");
	}
	return null;
	}

	/**
	* Finds and returns the appropriate <code>ActionMap</code>.
	*
	* @param create if true, create the <code>ActionMap</code> if it
	* is not already created
	* @return the <code>ActionMap</code> for this component; if the
	* <code>create</code> flag is false and there is no
	* current <code>ActionMap</code>, returns <code>null</code>
	*/
	final ActionMap getActionMap(boolean create) {
	if (getFlag(ACTIONMAP_CREATED)) {
	return actionMap;
	}
	// Hasn't been created.
	if (create) {
	ActionMap am = new ActionMap();
	setActionMap(am);
	return am;
	}
	return null;
	}

	/**
	* Returns the baseline. The baseline is measured from the top of
	* the component. This method is primarily meant for
	* <code>LayoutManager</code>s to align components along their
	* baseline. A return value less than 0 indicates this component
	* does not have a reasonable baseline and that
	* <code>LayoutManager</code>s should not align this component on
	* its baseline.
	* <p>
	* This method calls into the <code>ComponentUI</code> method of the
	* same name. If this component does not have a <code>ComponentUI</code>
	* -1 will be returned. If a value >= 0 is
	* returned, then the component has a valid baseline for any
	* size >= the minimum size and <code>getBaselineResizeBehavior</code>
	* can be used to determine how the baseline changes with size.
	*
	* @throws IllegalArgumentException {@inheritDoc}
	* @see #getBaselineResizeBehavior
	* @see java.awt.FontMetrics
	* @since 1.6
	*/
	public int getBaseline(int width, int height) {
	// check size.
	super.getBaseline(width, height);
	if (ui != null) {
	return ui.getBaseline(this, width, height);
	}
	return -1;
	}

	/**
	* Returns an enum indicating how the baseline of the component
	* changes as the size changes. This method is primarily meant for
	* layout managers and GUI builders.
	* <p>
	* This method calls into the <code>ComponentUI</code> method of
	* the same name. If this component does not have a
	* <code>ComponentUI</code>
	* <code>BaselineResizeBehavior.OTHER</code> will be
	* returned. Subclasses should
	* never return <code>null</code>; if the baseline can not be
	* calculated return <code>BaselineResizeBehavior.OTHER</code>. Callers
	* should first ask for the baseline using
	* <code>getBaseline</code> and if a value >= 0 is returned use
	* this method. It is acceptable for this method to return a
	* value other than <code>BaselineResizeBehavior.OTHER</code> even if
	* <code>getBaseline</code> returns a value less than 0.
	*
	* @see #getBaseline(int, int)
	* @since 1.6
	*/
	public BaselineResizeBehavior getBaselineResizeBehavior() {
	if (ui != null) {
	return ui.getBaselineResizeBehavior(this);
	}
	return BaselineResizeBehavior.OTHER;
	}

	/**
	* In release 1.4, the focus subsystem was rearchitected.
	* For more information, see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
	* How to Use the Focus Subsystem</a>,
	* a section in <em>The Java Tutorial</em>.
	* <p>
	* Requests focus on this <code>JComponent</code>'s
	* <code>FocusTraversalPolicy</code>'s default <code>Component</code>.
	* If this <code>JComponent</code> is a focus cycle root, then its
	* <code>FocusTraversalPolicy</code> is used. Otherwise, the
	* <code>FocusTraversalPolicy</code> of this <code>JComponent</code>'s
	* focus-cycle-root ancestor is used.
	*
	* @see java.awt.FocusTraversalPolicy#getDefaultComponent
	* @deprecated As of 1.4, replaced by
	* <code>FocusTraversalPolicy.getDefaultComponent(Container).requestFocus()</code>
	*/
	@Deprecated
	public boolean requestDefaultFocus() {
	Container nearestRoot =
	(isFocusCycleRoot()) ? this : getFocusCycleRootAncestor();
	if (nearestRoot == null) {
	return false;
	}
	Component comp = nearestRoot.getFocusTraversalPolicy().
	getDefaultComponent(nearestRoot);
	if (comp != null) {
	comp.requestFocus();
	return true;
	} else {
	return false;
	}
	}

	/**
	* Makes the component visible or invisible.
	* Overrides <code>Component.setVisible</code>.
	*
	* @param aFlag true to make the component visible; false to
	* make it invisible
	*
	* @beaninfo
	* attribute: visualUpdate true
	*/
	public void setVisible(boolean aFlag) {
	if (aFlag != isVisible()) {
	super.setVisible(aFlag);
	if (aFlag) {
	Container parent = getParent();
	if (parent != null) {
	Rectangle r = getBounds();
	parent.repaint(r.x, r.y, r.width, r.height);
	}
	revalidate();
	}
	}
	}

	/**
	* Sets whether or not this component is enabled.
	* A component that is enabled may respond to user input,
	* while a component that is not enabled cannot respond to
	* user input. Some components may alter their visual
	* representation when they are disabled in order to
	* provide feedback to the user that they cannot take input.
	* <p>Note: Disabling a component does not disable its children.
	*
	* <p>Note: Disabling a lightweight component does not prevent it from
	* receiving MouseEvents.
	*
	* @param enabled true if this component should be enabled, false otherwise
	* @see java.awt.Component#isEnabled
	* @see java.awt.Component#isLightweight
	*
	* @beaninfo
	* preferred: true
	* bound: true
	* attribute: visualUpdate true
	* description: The enabled state of the component.
	*/
	public void setEnabled(boolean enabled) {
	boolean oldEnabled = isEnabled();
	super.setEnabled(enabled);
	firePropertyChange("enabled", oldEnabled, enabled);
	if (enabled != oldEnabled) {
	repaint();
	}
	}

	/**
	* Sets the foreground color of this component. It is up to the
	* look and feel to honor this property, some may choose to ignore
	* it.
	*
	* @param fg the desired foreground <code>Color</code>
	* @see java.awt.Component#getForeground
	*
	* @beaninfo
	* preferred: true
	* bound: true
	* attribute: visualUpdate true
	* description: The foreground color of the component.
	*/
	public void setForeground(Color fg) {
	Color oldFg = getForeground();
	super.setForeground(fg);
	if ((oldFg != null) ? !oldFg.equals(fg) : ((fg != null) && !fg.equals(oldFg))) {
	// foreground already bound in AWT1.2
	repaint();
	}
	}

	/**
	* Sets the background color of this component. The background
	* color is used only if the component is opaque, and only
	* by subclasses of <code>JComponent</code> or
	* <code>ComponentUI</code> implementations. Direct subclasses of
	* <code>JComponent</code> must override
	* <code>paintComponent</code> to honor this property.
	* <p>
	* It is up to the look and feel to honor this property, some may
	* choose to ignore it.
	*
	* @param bg the desired background <code>Color</code>
	* @see java.awt.Component#getBackground
	* @see #setOpaque
	*
	* @beaninfo
	* preferred: true
	* bound: true
	* attribute: visualUpdate true
	* description: The background color of the component.
	*/
	public void setBackground(Color bg) {
	Color oldBg = getBackground();
	super.setBackground(bg);
	if ((oldBg != null) ? !oldBg.equals(bg) : ((bg != null) && !bg.equals(oldBg))) {
	// background already bound in AWT1.2
	repaint();
	}
	}

	/**
	* Sets the font for this component.
	*
	* @param font the desired <code>Font</code> for this component
	* @see java.awt.Component#getFont
	*
	* @beaninfo
	* preferred: true
	* bound: true
	* attribute: visualUpdate true
	* description: The font for the component.
	*/
	public void setFont(Font font) {
	Font oldFont = getFont();
	super.setFont(font);
	// font already bound in AWT1.2
	if (font != oldFont) {
	revalidate();
	repaint();
	}
	}

	/**
	* Returns the default locale used to initialize each JComponent's
	* locale property upon creation.
	*
	* The default locale has "AppContext" scope so that applets (and
	* potentially multiple lightweight applications running in a single VM)
	* can have their own setting. An applet can safely alter its default
	* locale because it will have no affect on other applets (or the browser).
	*
	* @return the default <code>Locale</code>.
	* @see #setDefaultLocale
	* @see java.awt.Component#getLocale
	* @see #setLocale
	* @since 1.4
	*/
	static public Locale getDefaultLocale() {
	Locale l = (Locale) SwingUtilities.appContextGet(defaultLocale);
	if( l == null ) {
	//REMIND(bcb) choosing the default value is more complicated
	//than this.
	l = Locale.getDefault();
	JComponent.setDefaultLocale( l );
	}
	return l;
	}


	/**
	* Sets the default locale used to initialize each JComponent's locale
	* property upon creation. The initial value is the VM's default locale.
	*
	* The default locale has "AppContext" scope so that applets (and
	* potentially multiple lightweight applications running in a single VM)
	* can have their own setting. An applet can safely alter its default
	* locale because it will have no affect on other applets (or the browser).
	*
	* @param l the desired default <code>Locale</code> for new components.
	* @see #getDefaultLocale
	* @see java.awt.Component#getLocale
	* @see #setLocale
	* @since 1.4
	*/
	static public void setDefaultLocale( Locale l ) {
	SwingUtilities.appContextPut(defaultLocale, l);
	}


	/**
	* Processes any key events that the component itself
	* recognizes. This is called after the focus
	* manager and any interested listeners have been
	* given a chance to steal away the event. This
	* method is called only if the event has not
	* yet been consumed. This method is called prior
	* to the keyboard UI logic.
	* <p>
	* This method is implemented to do nothing. Subclasses would
	* normally override this method if they process some
	* key events themselves. If the event is processed,
	* it should be consumed.
	*/
	protected void processComponentKeyEvent(KeyEvent e) {
	}

	/ Overrides <code>processKeyEvent</code> to process events. /
	protected void processKeyEvent(KeyEvent e) {
	boolean result;
	boolean shouldProcessKey;

	// This gives the key event listeners a crack at the event
	super.processKeyEvent(e);

	// give the component itself a crack at the event
	if (! e.isConsumed()) {
	processComponentKeyEvent(e);
	}

	shouldProcessKey = KeyboardState.shouldProcess(e);

	if(e.isConsumed()) {
	return;
	}

	if (shouldProcessKey && processKeyBindings(e, e.getID() ==
	KeyEvent.KEY_PRESSED)) {
	e.consume();
	}
	}

	/**
	* Invoked to process the key bindings for <code>ks</code> as the result
	* of the <code>KeyEvent</code> <code>e</code>. This obtains
	* the appropriate <code>InputMap</code>,
	* gets the binding, gets the action from the <code>ActionMap</code>,
	* and then (if the action is found and the component
	* is enabled) invokes <code>notifyAction</code> to notify the action.
	*
	* @param ks the <code>KeyStroke</code> queried
	* @param e the <code>KeyEvent</code>
	* @param condition one of the following values:
	* <ul>
	* <li>JComponent.WHEN_FOCUSED
	* <li>JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT
	* <li>JComponent.WHEN_IN_FOCUSED_WINDOW
	* </ul>
	* @param pressed true if the key is pressed
	* @return true if there was a binding to an action, and the action
	* was enabled
	*
	* @since 1.3
	*/
	protected boolean processKeyBinding(KeyStroke ks, KeyEvent e,
	int condition, boolean pressed) {
	InputMap map = getInputMap(condition, false);
	ActionMap am = getActionMap(false);

	if(map != null && am != null && isEnabled()) {
	Object binding = map.get(ks);
	Action action = (binding == null) ? null : am.get(binding);
	if (action != null) {
	return SwingUtilities.notifyAction(action, ks, e, this,
	e.getModifiers());
	}
	}
	return false;
	}

	/**
	* This is invoked as the result of a <code>KeyEvent</code>
	* that was not consumed by the <code>FocusManager</code>,
	* <code>KeyListeners</code>, or the component. It will first try
	* <code>WHEN_FOCUSED</code> bindings,
	* then <code>WHEN_ANCESTOR_OF_FOCUSED_COMPONENT</code> bindings,
	* and finally <code>WHEN_IN_FOCUSED_WINDOW</code> bindings.
	*
	* @param e the unconsumed <code>KeyEvent</code>
	* @param pressed true if the key is pressed
	* @return true if there is a key binding for <code>e</code>
	*/
	boolean processKeyBindings(KeyEvent e, boolean pressed) {
	if (!SwingUtilities.isValidKeyEventForKeyBindings(e)) {
	return false;
	}
	// Get the KeyStroke
	// There may be two keystrokes associated with a low-level key event;
	// in this case a keystroke made of an extended key code has a priority.
	KeyStroke ks;
	KeyStroke ksE = null;

	if (e.getID() == KeyEvent.KEY_TYPED) {
	ks = KeyStroke.getKeyStroke(e.getKeyChar());
	}
	else {
	ks = KeyStroke.getKeyStroke(e.getKeyCode(),e.getModifiers(),
	(pressed ? false:true));
	if (e.getKeyCode() != e.getExtendedKeyCode()) {
	ksE = KeyStroke.getKeyStroke(e.getExtendedKeyCode(),e.getModifiers(),
	(pressed ? false:true));
	}
	}

	// Do we have a key binding for e?
	// If we have a binding by an extended code, use it.
	// If not, check for regular code binding.
	if(ksE != null && processKeyBinding(ksE, e, WHEN_FOCUSED, pressed)) {
	return true;
	}
	if(processKeyBinding(ks, e, WHEN_FOCUSED, pressed))
	return true;

	/* We have no key binding. Let's try the path from our parent to the
	* window excluded. We store the path components so we can avoid
	* asking the same component twice.
	*/
	Container parent = this;
	while (parent != null && !(parent instanceof Window) &&
	!(parent instanceof Applet)) {
	if(parent instanceof JComponent) {
	if(ksE != null && ((JComponent)parent).processKeyBinding(ksE, e,
	WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, pressed))
	return true;
	if(((JComponent)parent).processKeyBinding(ks, e,
	WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, pressed))
	return true;
	}
	// This is done so that the children of a JInternalFrame are
	// given precedence for WHEN_IN_FOCUSED_WINDOW bindings before
	// other components WHEN_IN_FOCUSED_WINDOW bindings. This also gives
	// more precedence to the WHEN_IN_FOCUSED_WINDOW bindings of the
	// JInternalFrame's children vs the
	// WHEN_ANCESTOR_OF_FOCUSED_COMPONENT bindings of the parents.
	// maybe generalize from JInternalFrame (like isFocusCycleRoot).
	if ((parent instanceof JInternalFrame) &&
	JComponent.processKeyBindingsForAllComponents(e,parent,pressed)){
	return true;
	}
	parent = parent.getParent();
	}

	/* No components between the focused component and the window is
	* actually interested by the key event. Let's try the other
	* JComponent in this window.
	*/
	if(parent != null) {
	return JComponent.processKeyBindingsForAllComponents(e,parent,pressed);
	}
	return false;
	}

	static boolean processKeyBindingsForAllComponents(KeyEvent e,
	Container container, boolean pressed) {
	while (true) {
	if (KeyboardManager.getCurrentManager().fireKeyboardAction(
	e, pressed, container)) {
	return true;
	}
	if (container instanceof Popup.HeavyWeightWindow) {
	container = ((Window)container).getOwner();
	}
	else {
	return false;
	}
	}
	}

	/**
	* Registers the text to display in a tool tip.
	* The text displays when the cursor lingers over the component.
	* <p>
	* See <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/tooltip.html">How to Use Tool Tips</a>
	* in <em>The Java Tutorial</em>
	* for further documentation.
	*
	* @param text the string to display; if the text is <code>null</code>,
	* the tool tip is turned off for this component
	* @see #TOOL_TIP_TEXT_KEY
	* @beaninfo
	* preferred: true
	* description: The text to display in a tool tip.
	*/
	public void setToolTipText(String text) {
	String oldText = getToolTipText();
	putClientProperty(TOOL_TIP_TEXT_KEY, text);
	ToolTipManager toolTipManager = ToolTipManager.sharedInstance();
	if (text != null) {
	if (oldText == null) {
	toolTipManager.registerComponent(this);
	}
	} else {
	toolTipManager.unregisterComponent(this);
	}
	}

	/**
	* Returns the tooltip string that has been set with
	* <code>setToolTipText</code>.
	*
	* @return the text of the tool tip
	* @see #TOOL_TIP_TEXT_KEY
	*/
	public String getToolTipText() {
	return (String)getClientProperty(TOOL_TIP_TEXT_KEY);
	}


	/**
	* Returns the string to be used as the tooltip for <i>event</i>.
	* By default this returns any string set using
	* <code>setToolTipText</code>. If a component provides
	* more extensive API to support differing tooltips at different locations,
	* this method should be overridden.
	*/
	public String getToolTipText(MouseEvent event) {
	return getToolTipText();
	}

	/**
	* Returns the tooltip location in this component's coordinate system.
	* If <code>null</code> is returned, Swing will choose a location.
	* The default implementation returns <code>null</code>.
	*
	* @param event the <code>MouseEvent</code> that caused the
	* <code>ToolTipManager</code> to show the tooltip
	* @return always returns <code>null</code>
	*/
	public Point getToolTipLocation(MouseEvent event) {
	return null;
	}

	/**
	* Returns the preferred location to display the popup menu in this
	* component's coordinate system. It is up to the look and feel to
	* honor this property, some may choose to ignore it.
	* If {@code null}, the look and feel will choose a suitable location.
	*
	* @param event the {@code MouseEvent} that triggered the popup to be
	* shown, or {@code null} if the popup is not being shown as the
	* result of a mouse event
	* @return location to display the {@code JPopupMenu}, or {@code null}
	* @since 1.5
	*/
	public Point getPopupLocation(MouseEvent event) {
	return null;
	}


	/**
	* Returns the instance of <code>JToolTip</code> that should be used
	* to display the tooltip.
	* Components typically would not override this method,
	* but it can be used to
	* cause different tooltips to be displayed differently.
	*
	* @return the <code>JToolTip</code> used to display this toolTip
	*/
	public JToolTip createToolTip() {
	JToolTip tip = new JToolTip();
	tip.setComponent(this);
	return tip;
	}

	/**
	* Forwards the <code>scrollRectToVisible()</code> message to the
	* <code>JComponent</code>'s parent. Components that can service
	* the request, such as <code>JViewport</code>,
	* override this method and perform the scrolling.
	*
	* @param aRect the visible <code>Rectangle</code>
	* @see JViewport
	*/
	public void scrollRectToVisible(Rectangle aRect) {
	Container parent;
	int dx = getX(), dy = getY();

	for (parent = getParent();
	!(parent == null) &&
	!(parent instanceof JComponent) &&
	!(parent instanceof CellRendererPane);
	parent = parent.getParent()) {
	Rectangle bounds = parent.getBounds();

	dx += bounds.x;
	dy += bounds.y;
	}

	if (!(parent == null) && !(parent instanceof CellRendererPane)) {
	aRect.x += dx;
	aRect.y += dy;

	((JComponent)parent).scrollRectToVisible(aRect);
	aRect.x -= dx;
	aRect.y -= dy;
	}
	}

	/**
	* Sets the <code>autoscrolls</code> property.
	* If <code>true</code> mouse dragged events will be
	* synthetically generated when the mouse is dragged
	* outside of the component's bounds and mouse motion
	* has paused (while the button continues to be held
	* down). The synthetic events make it appear that the
	* drag gesture has resumed in the direction established when
	* the component's boundary was crossed. Components that
	* support autoscrolling must handle <code>mouseDragged</code>
	* events by calling <code>scrollRectToVisible</code> with a
	* rectangle that contains the mouse event's location. All of
	* the Swing components that support item selection and are
	* typically displayed in a <code>JScrollPane</code>
	* (<code>JTable</code>, <code>JList</code>, <code>JTree</code>,
	* <code>JTextArea</code>, and <code>JEditorPane</code>)
	* already handle mouse dragged events in this way. To enable
	* autoscrolling in any other component, add a mouse motion
	* listener that calls <code>scrollRectToVisible</code>.
	* For example, given a <code>JPanel</code>, <code>myPanel</code>:
	* <pre>
	* MouseMotionListener doScrollRectToVisible = new MouseMotionAdapter() {
	* public void mouseDragged(MouseEvent e) {
	* Rectangle r = new Rectangle(e.getX(), e.getY(), 1, 1);
	* ((JPanel)e.getSource()).scrollRectToVisible(r);
	* }
	* };
	* myPanel.addMouseMotionListener(doScrollRectToVisible);
	* </pre>
	* The default value of the <code>autoScrolls</code>
	* property is <code>false</code>.
	*
	* @param autoscrolls if true, synthetic mouse dragged events
	* are generated when the mouse is dragged outside of a component's
	* bounds and the mouse button continues to be held down; otherwise
	* false
	* @see #getAutoscrolls
	* @see JViewport
	* @see JScrollPane
	*
	* @beaninfo
	* expert: true
	* description: Determines if this component automatically scrolls its contents when dragged.
	*/
	public void setAutoscrolls(boolean autoscrolls) {
	setFlag(AUTOSCROLLS_SET, true);
	if (this.autoscrolls != autoscrolls) {
	this.autoscrolls = autoscrolls;
	if (autoscrolls) {
	enableEvents(AWTEvent.MOUSE_EVENT_MASK);
	enableEvents(AWTEvent.MOUSE_MOTION_EVENT_MASK);
	}
	else {
	Autoscroller.stop(this);
	}
	}
	}

	/**
	* Gets the <code>autoscrolls</code> property.
	*
	* @return the value of the <code>autoscrolls</code> property
	* @see JViewport
	* @see #setAutoscrolls
	*/
	public boolean getAutoscrolls() {
	return autoscrolls;
	}

	/**
	* Sets the {@code TransferHandler}, which provides support for transfer
	* of data into and out of this component via cut/copy/paste and drag
	* and drop. This may be {@code null} if the component does not support
	* data transfer operations.
	* <p>
	* If the new {@code TransferHandler} is not {@code null}, this method
	* also installs a <b>new</b> {@code DropTarget} on the component to
	* activate drop handling through the {@code TransferHandler} and activate
	* any built-in support (such as calculating and displaying potential drop
	* locations). If you do not wish for this component to respond in any way
	* to drops, you can disable drop support entirely either by removing the
	* drop target ({@code setDropTarget(null)}) or by de-activating it
	* ({@code getDropTaget().setActive(false)}).
	* <p>
	* If the new {@code TransferHandler} is {@code null}, this method removes
	* the drop target.
	* <p>
	* Under two circumstances, this method does not modify the drop target:
	* First, if the existing drop target on this component was explicitly
	* set by the developer to a {@code non-null} value. Second, if the
	* system property {@code suppressSwingDropSupport} is {@code true}. The
	* default value for the system property is {@code false}.
	* <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
	* @since 1.4
	* @beaninfo
	* bound: true
	* hidden: true
	* description: Mechanism for transfer of data to and from the component
	*/
	public void setTransferHandler(TransferHandler newHandler) {
	TransferHandler oldHandler = (TransferHandler)getClientProperty(
	JComponent_TRANSFER_HANDLER);
	putClientProperty(JComponent_TRANSFER_HANDLER, newHandler);

	SwingUtilities.installSwingDropTargetAsNecessary(this, newHandler);
	firePropertyChange("transferHandler", oldHandler, newHandler);
	}

	/**
	* Gets the <code>transferHandler</code> property.
	*
	* @return the value of the <code>transferHandler</code> property
	*
	* @see TransferHandler
	* @see #setTransferHandler
	* @since 1.4
	*/
	public TransferHandler getTransferHandler() {
	return (TransferHandler)getClientProperty(JComponent_TRANSFER_HANDLER);
	}

	/**
	* Calculates a custom drop location for this type of component,
	* representing where a drop at the given point should insert data.
	* <code>null</code> is returned if this component doesn't calculate
	* custom drop locations. In this case, <code>TransferHandler</code>
	* will provide a default <code>DropLocation</code> containing just
	* the point.
	*
	* @param p the point to calculate a drop location for
	* @return the drop location, or <code>null</code>
	*/
	TransferHandler.DropLocation dropLocationForPoint(Point p) {
	return null;
	}

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

	return null;
	}

	/**
	* Called to indicate to this component that DnD is done.
	* Needed by <code>JTree</code>.
	*/
	void dndDone() {
	}

	/**
	* Processes mouse events occurring on this component by
	* dispatching them to any registered
	* <code>MouseListener</code> objects, refer to
	* {@link java.awt.Component#processMouseEvent(MouseEvent)}
	* for a complete description of this method.
	*
	* @param e the mouse event
	* @see java.awt.Component#processMouseEvent
	* @since 1.5
	*/
	protected void processMouseEvent(MouseEvent e) {
	if (autoscrolls && e.getID() == MouseEvent.MOUSE_RELEASED) {
	Autoscroller.stop(this);
	}
	super.processMouseEvent(e);
	}

	/**
	* Processes mouse motion events, such as MouseEvent.MOUSE_DRAGGED.
	*
	* @param e the <code>MouseEvent</code>
	* @see MouseEvent
	*/
	protected void processMouseMotionEvent(MouseEvent e) {
	boolean dispatch = true;
	if (autoscrolls && e.getID() == MouseEvent.MOUSE_DRAGGED) {
	// We don't want to do the drags when the mouse moves if we're
	// autoscrolling. It makes it feel spastic.
	dispatch = !Autoscroller.isRunning(this);
	Autoscroller.processMouseDragged(e);
	}
	if (dispatch) {
	super.processMouseMotionEvent(e);
	}
	}

	// Inner classes can't get at this method from a super class
	void superProcessMouseMotionEvent(MouseEvent e) {
	super.processMouseMotionEvent(e);
	}

	/**
	* This is invoked by the <code>RepaintManager</code> if
	* <code>createImage</code> is called on the component.
	*
	* @param newValue true if the double buffer image was created from this component
	*/
	void setCreatedDoubleBuffer(boolean newValue) {
	setFlag(CREATED_DOUBLE_BUFFER, newValue);
	}

	/**
	* Returns true if the <code>RepaintManager</code>
	* created the double buffer image from the component.
	*
	* @return true if this component had a double buffer image, false otherwise
	*/
	boolean getCreatedDoubleBuffer() {
	return getFlag(CREATED_DOUBLE_BUFFER);
	}

	/**
	* <code>ActionStandin</code> is used as a standin for
	* <code>ActionListeners</code> that are
	* added via <code>registerKeyboardAction</code>.
	*/
	final class ActionStandin implements Action {
	private final ActionListener actionListener;
	private final String command;
	// This will be non-null if actionListener is an Action.
	private final Action action;

	ActionStandin(ActionListener actionListener, String command) {
	this.actionListener = actionListener;
	if (actionListener instanceof Action) {
	this.action = (Action)actionListener;
	}
	else {
	this.action = null;
	}
	this.command = command;
	}

	public Object getValue(String key) {
	if (key != null) {
	if (key.equals(Action.ACTION_COMMAND_KEY)) {
	return command;
	}
	if (action != null) {
	return action.getValue(key);
	}
	if (key.equals(NAME)) {
	return "ActionStandin";
	}
	}
	return null;
	}

	public boolean isEnabled() {
	if (actionListener == null) {
	// This keeps the old semantics where
	// registerKeyboardAction(null) would essentialy remove
	// the binding. We don't remove the binding from the
	// InputMap as that would still allow parent InputMaps
	// bindings to be accessed.
	return false;
	}
	if (action == null) {
	return true;
	}
	return action.isEnabled();
	}

	public void actionPerformed(ActionEvent ae) {
	if (actionListener != null) {
	actionListener.actionPerformed(ae);
	}
	}

	// We don't allow any values to be added.
	public void putValue(String key, Object value) {}

	// Does nothing, our enabledness is determiend from our asociated
	// action.
	public void setEnabled(boolean b) { }

	public void addPropertyChangeListener
	(PropertyChangeListener listener) {}
	public void removePropertyChangeListener
	(PropertyChangeListener listener) {}
	}


	// This class is used by the KeyboardState class to provide a single
	// instance that can be stored in the AppContext.
	static final class IntVector {
	int array[] = null;
	int count = 0;
	int capacity = 0;

	int size() {
	return count;
	}

	int elementAt(int index) {
	return array[index];
	}

	void addElement(int value) {
	if (count == capacity) {
	capacity = (capacity + 2) * 2;
	int[] newarray = new int[capacity];
	if (count > 0) {
	System.arraycopy(array, 0, newarray, 0, count);
	}
	array = newarray;
	}
	array[count++] = value;
	}

	void setElementAt(int value, int index) {
	array[index] = value;
	}
	}

	@SuppressWarnings("serial")
	static class KeyboardState implements Serializable {
	private static final Object keyCodesKey =
	JComponent.KeyboardState.class;

	// Get the array of key codes from the AppContext.
	static IntVector getKeyCodeArray() {
	IntVector iv =
	(IntVector)SwingUtilities.appContextGet(keyCodesKey);
	if (iv == null) {
	iv = new IntVector();
	SwingUtilities.appContextPut(keyCodesKey, iv);
	}
	return iv;
	}

	static void registerKeyPressed(int keyCode) {
	IntVector kca = getKeyCodeArray();
	int count = kca.size();
	int i;
	for(i=0;i<count;i++) {
	if(kca.elementAt(i) == -1){
	kca.setElementAt(keyCode, i);
	return;
	}
	}
	kca.addElement(keyCode);
	}

	static void registerKeyReleased(int keyCode) {
	IntVector kca = getKeyCodeArray();
	int count = kca.size();
	int i;
	for(i=0;i<count;i++) {
	if(kca.elementAt(i) == keyCode) {
	kca.setElementAt(-1, i);
	return;
	}
	}
	}

	static boolean keyIsPressed(int keyCode) {
	IntVector kca = getKeyCodeArray();
	int count = kca.size();
	int i;
	for(i=0;i<count;i++) {
	if(kca.elementAt(i) == keyCode) {
	return true;
	}
	}
	return false;
	}

	/**
	* Updates internal state of the KeyboardState and returns true
	* if the event should be processed further.
	*/
	static boolean shouldProcess(KeyEvent e) {
	switch (e.getID()) {
	case KeyEvent.KEY_PRESSED:
	if (!keyIsPressed(e.getKeyCode())) {
	registerKeyPressed(e.getKeyCode());
	}
	return true;
	case KeyEvent.KEY_RELEASED:
	// We are forced to process VK_PRINTSCREEN separately because
	// the Windows doesn't generate the key pressed event for
	// printscreen and it block the processing of key release
	// event for printscreen.
	if (keyIsPressed(e.getKeyCode()) \|\| e.getKeyCode()==KeyEvent.VK_PRINTSCREEN) {
	registerKeyReleased(e.getKeyCode());
	return true;
	}
	return false;
	case KeyEvent.KEY_TYPED:
	return true;
	default:
	// Not a known KeyEvent type, bail.
	return false;
	}
	}
	}

	static final sun.awt.RequestFocusController focusController =
	new sun.awt.RequestFocusController() {
	public boolean acceptRequestFocus(Component from, Component to,
	boolean temporary, boolean focusedWindowChangeAllowed,
	sun.awt.CausedFocusEvent.Cause cause)
	{
	if ((to == null) \|\| !(to instanceof JComponent)) {
	return true;
	}

	if ((from == null) \|\| !(from instanceof JComponent)) {
	return true;
	}

	JComponent target = (JComponent) to;
	if (!target.getVerifyInputWhenFocusTarget()) {
	return true;
	}

	JComponent jFocusOwner = (JComponent)from;
	InputVerifier iv = jFocusOwner.getInputVerifier();

	if (iv == null) {
	return true;
	} else {
	Object currentSource = SwingUtilities.appContextGet(
	INPUT_VERIFIER_SOURCE_KEY);
	if (currentSource == jFocusOwner) {
	// We're currently calling into the InputVerifier
	// for this component, so allow the focus change.
	return true;
	}
	SwingUtilities.appContextPut(INPUT_VERIFIER_SOURCE_KEY,
	jFocusOwner);
	try {
	return iv.shouldYieldFocus(jFocusOwner);
	} finally {
	if (currentSource != null) {
	// We're already in the InputVerifier for
	// currentSource. By resetting the currentSource
	// we ensure that if the InputVerifier for
	// currentSource does a requestFocus, we don't
	// try and run the InputVerifier again.
	SwingUtilities.appContextPut(
	INPUT_VERIFIER_SOURCE_KEY, currentSource);
	} else {
	SwingUtilities.appContextRemove(
	INPUT_VERIFIER_SOURCE_KEY);
	}
	}
	}
	}
	};

	/*
	* --- Accessibility Support ---
	*/

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>java.awt.Component.setEnabled(boolean)</code>.
	*/
	@Deprecated
	public void enable() {
	if (isEnabled() != true) {
	super.enable();
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.ENABLED);
	}
	}
	}

	/**
	* @deprecated As of JDK version 1.1,
	* replaced by <code>java.awt.Component.setEnabled(boolean)</code>.
	*/
	@Deprecated
	public void disable() {
	if (isEnabled() != false) {
	super.disable();
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.ENABLED, null);
	}
	}
	}

	/**
	* Inner class of JComponent used to provide default support for
	* accessibility. This class is not meant to be used directly by
	* application developers, but is instead meant only to be
	* subclassed by component developers.
	* <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™
	* has been added to the <code>java.beans</code> package.
	* Please see {@link java.beans.XMLEncoder}.
	*/
	public abstract class AccessibleJComponent extends AccessibleAWTContainer
	implements AccessibleExtendedComponent
	{
	/**
	* Though the class is abstract, this should be called by
	* all sub-classes.
	*/
	protected AccessibleJComponent() {
	super();
	}

	/**
	* Number of PropertyChangeListener objects registered. It's used
	* to add/remove ContainerListener and FocusListener to track
	* target JComponent's state
	*/
	private volatile transient int propertyListenersCount = 0;

	/**
	* This field duplicates the function of the accessibleAWTFocusHandler field
	* in java.awt.Component.AccessibleAWTComponent, so it has been deprecated.
	*/
	@Deprecated
	protected FocusListener accessibleFocusHandler = null;

	/**
	* Fire PropertyChange listener, if one is registered,
	* when children added/removed.
	*/
	protected class AccessibleContainerHandler
	implements ContainerListener {
	public void componentAdded(ContainerEvent e) {
	Component c = e.getChild();
	if (c != null && c instanceof Accessible) {
	AccessibleJComponent.this.firePropertyChange(
	AccessibleContext.ACCESSIBLE_CHILD_PROPERTY,
	null, c.getAccessibleContext());
	}
	}
	public void componentRemoved(ContainerEvent e) {
	Component c = e.getChild();
	if (c != null && c instanceof Accessible) {
	AccessibleJComponent.this.firePropertyChange(
	AccessibleContext.ACCESSIBLE_CHILD_PROPERTY,
	c.getAccessibleContext(), null);
	}
	}
	}

	/**
	* Fire PropertyChange listener, if one is registered,
	* when focus events happen
	* @since 1.3
	*/
	protected class AccessibleFocusHandler implements FocusListener {
	public void focusGained(FocusEvent event) {
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.FOCUSED);
	}
	}
	public void focusLost(FocusEvent event) {
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.FOCUSED, null);
	}
	}
	} // inner class AccessibleFocusHandler


	/**
	* Adds a PropertyChangeListener to the listener list.
	*
	* @param listener the PropertyChangeListener to be added
	*/
	public void addPropertyChangeListener(PropertyChangeListener listener) {
	super.addPropertyChangeListener(listener);
	}

	/**
	* Removes a PropertyChangeListener from the listener list.
	* This removes a PropertyChangeListener that was registered
	* for all properties.
	*
	* @param listener the PropertyChangeListener to be removed
	*/
	public void removePropertyChangeListener(PropertyChangeListener listener) {
	super.removePropertyChangeListener(listener);
	}



	/**
	* Recursively search through the border hierarchy (if it exists)
	* for a TitledBorder with a non-null title. This does a depth
	* first search on first the inside borders then the outside borders.
	* The assumption is that titles make really pretty inside borders
	* but not very pretty outside borders in compound border situations.
	* It's rather arbitrary, but hopefully decent UI programmers will
	* not create multiple titled borders for the same component.
	*/
	protected String getBorderTitle(Border b) {
	String s;
	if (b instanceof TitledBorder) {
	return ((TitledBorder) b).getTitle();
	} else if (b instanceof CompoundBorder) {
	s = getBorderTitle(((CompoundBorder) b).getInsideBorder());
	if (s == null) {
	s = getBorderTitle(((CompoundBorder) b).getOutsideBorder());
	}
	return s;
	} else {
	return null;
	}
	}

	// AccessibleContext methods
	//
	/**
	* Gets the accessible name of this object. This should almost never
	* return java.awt.Component.getName(), as that generally isn't
	* a localized name, and doesn't have meaning for the user. If the
	* object is fundamentally a text object (such as a menu item), the
	* accessible name should be the text of the object (for example,
	* "save").
	* If the object has a tooltip, the tooltip text may also be an
	* appropriate String to return.
	*
	* @return the localized name of the object -- can be null if this
	* object does not have a name
	* @see AccessibleContext#setAccessibleName
	*/
	public String getAccessibleName() {
	String name = accessibleName;

	// fallback to the client name property
	//
	if (name == null) {
	name = (String)getClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY);
	}

	// fallback to the titled border if it exists
	//
	if (name == null) {
	name = getBorderTitle(getBorder());
	}

	// fallback to the label labeling us if it exists
	//
	if (name == null) {
	Object o = getClientProperty(JLabel.LABELED_BY_PROPERTY);
	if (o instanceof Accessible) {
	AccessibleContext ac = ((Accessible) o).getAccessibleContext();
	if (ac != null) {
	name = ac.getAccessibleName();
	}
	}
	}
	return name;
	}

	/**
	* Gets the accessible description of this object. This should be
	* a concise, localized description of what this object is - what
	* is its meaning to the user. If the object has a tooltip, the
	* tooltip text may be an appropriate string to return, assuming
	* it contains a concise description of the object (instead of just
	* the name of the object - for example a "Save" icon on a toolbar that
	* had "save" as the tooltip text shouldn't return the tooltip
	* text as the description, but something like "Saves the current
	* text document" instead).
	*
	* @return the localized description of the object -- can be null if
	* this object does not have a description
	* @see AccessibleContext#setAccessibleDescription
	*/
	public String getAccessibleDescription() {
	String description = accessibleDescription;

	// fallback to the client description property
	//
	if (description == null) {
	description = (String)getClientProperty(AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY);
	}

	// fallback to the tool tip text if it exists
	//
	if (description == null) {
	try {
	description = getToolTipText();
	} catch (Exception e) {
	// Just in case the subclass overrode the
	// getToolTipText method and actually
	// requires a MouseEvent.
	// [[[FIXME: WDW - we probably should require this
	// method to take a MouseEvent and just pass it on
	// to getToolTipText. The swing-feedback traffic
	// leads me to believe getToolTipText might change,
	// though, so I was hesitant to make this change at
	// this time.]]]
	}
	}

	// fallback to the label labeling us if it exists
	//
	if (description == null) {
	Object o = getClientProperty(JLabel.LABELED_BY_PROPERTY);
	if (o instanceof Accessible) {
	AccessibleContext ac = ((Accessible) o).getAccessibleContext();
	if (ac != null) {
	description = ac.getAccessibleDescription();
	}
	}
	}

	return description;
	}

	/**
	* Gets the role of this object.
	*
	* @return an instance of AccessibleRole describing the role of the
	* object
	* @see AccessibleRole
	*/
	public AccessibleRole getAccessibleRole() {
	return AccessibleRole.SWING_COMPONENT;
	}

	/**
	* Gets 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 (JComponent.this.isOpaque()) {
	states.add(AccessibleState.OPAQUE);
	}
	return states;
	}

	/**
	* Returns the number of accessible children in the object. If all
	* of the children of this object implement Accessible, than this
	* method should return the number of children of this object.
	*
	* @return the number of accessible children in the object.
	*/
	public int getAccessibleChildrenCount() {
	return super.getAccessibleChildrenCount();
	}

	/**
	* Returns the nth Accessible child of the object.
	*
	* @param i zero-based index of child
	* @return the nth Accessible child of the object
	*/
	public Accessible getAccessibleChild(int i) {
	return super.getAccessibleChild(i);
	}

	// ----- AccessibleExtendedComponent

	/**
	* Returns the AccessibleExtendedComponent
	*
	* @return the AccessibleExtendedComponent
	*/
	AccessibleExtendedComponent getAccessibleExtendedComponent() {
	return this;
	}

	/**
	* Returns the tool tip text
	*
	* @return the tool tip text, if supported, of the object;
	* otherwise, null
	* @since 1.4
	*/
	public String getToolTipText() {
	return JComponent.this.getToolTipText();
	}

	/**
	* Returns the titled border text
	*
	* @return the titled border text, if supported, of the object;
	* otherwise, null
	* @since 1.4
	*/
	public String getTitledBorderText() {
	Border border = JComponent.this.getBorder();
	if (border instanceof TitledBorder) {
	return ((TitledBorder)border).getTitle();
	} else {
	return null;
	}
	}

	/**
	* Returns key bindings associated with this object
	*
	* @return the key bindings, if supported, of the object;
	* otherwise, null
	* @see AccessibleKeyBinding
	* @since 1.4
	*/
	public AccessibleKeyBinding getAccessibleKeyBinding() {
	// Try to get the linked label's mnemonic if it exists
	Object o = getClientProperty(JLabel.LABELED_BY_PROPERTY);
	if (o instanceof Accessible){
	AccessibleContext ac = ((Accessible) o).getAccessibleContext();
	if (ac != null){
	AccessibleComponent comp = ac.getAccessibleComponent();
	if (! (comp instanceof AccessibleExtendedComponent))
	return null;
	return ((AccessibleExtendedComponent)comp).getAccessibleKeyBinding();
	}
	}
	return null;
	}
	} // inner class AccessibleJComponent


	/**
	* Returns an <code>ArrayTable</code> used for
	* key/value "client properties" for this component. If the
	* <code>clientProperties</code> table doesn't exist, an empty one
	* will be created.
	*
	* @return an ArrayTable
	* @see #putClientProperty
	* @see #getClientProperty
	*/
	private ArrayTable getClientProperties() {
	if (clientProperties == null) {
	clientProperties = new ArrayTable();
	}
	return clientProperties;
	}


	/**
	* Returns the value of the property with the specified key. Only
	* properties added with <code>putClientProperty</code> will return
	* a non-<code>null</code> value.
	*
	* @param key the being queried
	* @return the value of this property or <code>null</code>
	* @see #putClientProperty
	*/
	public final Object getClientProperty(Object key) {
	if (key == SwingUtilities2.AA_TEXT_PROPERTY_KEY) {
	return aaTextInfo;
	} else if (key == SwingUtilities2.COMPONENT_UI_PROPERTY_KEY) {
	return ui;
	}
	if(clientProperties == null) {
	return null;
	} else {
	synchronized(clientProperties) {
	return clientProperties.get(key);
	}
	}
	}

	/**
	* Adds an arbitrary key/value "client property" to this component.
	* <p>
	* The <code>get/putClientProperty</code> methods provide access to
	* a small per-instance hashtable. Callers can use get/putClientProperty
	* to annotate components that were created by another module.
	* For example, a
	* layout manager might store per child constraints this way. For example:
	* <pre>
	* componentA.putClientProperty("to the left of", componentB);
	* </pre>
	* If value is <code>null</code> this method will remove the property.
	* Changes to client properties are reported with
	* <code>PropertyChange</code> events.
	* The name of the property (for the sake of PropertyChange
	* events) is <code>key.toString()</code>.
	* <p>
	* The <code>clientProperty</code> dictionary is not intended to
	* support large
	* scale extensions to JComponent nor should be it considered an
	* alternative to subclassing when designing a new component.
	*
	* @param key the new client property key
	* @param value the new client property value; if <code>null</code>
	* this method will remove the property
	* @see #getClientProperty
	* @see #addPropertyChangeListener
	*/
	public final void putClientProperty(Object key, Object value) {
	if (key == SwingUtilities2.AA_TEXT_PROPERTY_KEY) {
	aaTextInfo = value;
	return;
	}
	if (value == null && clientProperties == null) {
	// Both the value and ArrayTable are null, implying we don't
	// have to do anything.
	return;
	}
	ArrayTable clientProperties = getClientProperties();
	Object oldValue;
	synchronized(clientProperties) {
	oldValue = clientProperties.get(key);
	if (value != null) {
	clientProperties.put(key, value);
	} else if (oldValue != null) {
	clientProperties.remove(key);
	} else {
	// old == new == null
	return;
	}
	}
	clientPropertyChanged(key, oldValue, value);
	firePropertyChange(key.toString(), oldValue, value);
	}

	// Invoked from putClientProperty. This is provided for subclasses
	// in Swing.
	void clientPropertyChanged(Object key, Object oldValue,
	Object newValue) {
	}


	/*
	* Sets the property with the specified name to the specified value if
	* the property has not already been set by the client program.
	* This method is used primarily to set UI defaults for properties
	* with primitive types, where the values cannot be marked with
	* UIResource.
	* @see LookAndFeel#installProperty
	* @param propertyName String containing the name of the property
	* @param value Object containing the property value
	*/
	void setUIProperty(String propertyName, Object value) {
	if (propertyName == "opaque") {
	if (!getFlag(OPAQUE_SET)) {
	setOpaque(((Boolean)value).booleanValue());
	setFlag(OPAQUE_SET, false);
	}
	} else if (propertyName == "autoscrolls") {
	if (!getFlag(AUTOSCROLLS_SET)) {
	setAutoscrolls(((Boolean)value).booleanValue());
	setFlag(AUTOSCROLLS_SET, false);
	}
	} else if (propertyName == "focusTraversalKeysForward") {
	if (!getFlag(FOCUS_TRAVERSAL_KEYS_FORWARD_SET)) {
	super.setFocusTraversalKeys(KeyboardFocusManager.
	FORWARD_TRAVERSAL_KEYS,
	(Set<AWTKeyStroke>)value);
	}
	} else if (propertyName == "focusTraversalKeysBackward") {
	if (!getFlag(FOCUS_TRAVERSAL_KEYS_BACKWARD_SET)) {
	super.setFocusTraversalKeys(KeyboardFocusManager.
	BACKWARD_TRAVERSAL_KEYS,
	(Set<AWTKeyStroke>)value);
	}
	} else {
	throw new IllegalArgumentException("property \""+
	propertyName+ "\" cannot be set using this method");
	}
	}


	/**
	* Sets the focus traversal keys for a given traversal operation for this
	* Component.
	* Refer to
	* {@link java.awt.Component#setFocusTraversalKeys}
	* for a complete description of this method.
	* <p>
	* This method may throw a {@code ClassCastException} if any {@code Object}
	* in {@code keystrokes} is not an {@code AWTKeyStroke}.
	*
	* @param id one of KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS
	* @param keystrokes the Set of AWTKeyStroke for the specified operation
	* @see java.awt.KeyboardFocusManager#FORWARD_TRAVERSAL_KEYS
	* @see java.awt.KeyboardFocusManager#BACKWARD_TRAVERSAL_KEYS
	* @see java.awt.KeyboardFocusManager#UP_CYCLE_TRAVERSAL_KEYS
	* @throws IllegalArgumentException if id is not one of
	* KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
	* KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, or
	* KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS, or if keystrokes
	* contains null, or if any keystroke represents a KEY_TYPED event,
	* or if any keystroke already maps to another focus traversal
	* operation for this Component
	* @since 1.5
	* @beaninfo
	* bound: true
	*/
	public void
	setFocusTraversalKeys(int id, Set<? extends AWTKeyStroke> keystrokes)
	{
	if (id == KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS) {
	setFlag(FOCUS_TRAVERSAL_KEYS_FORWARD_SET,true);
	} else if (id == KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS) {
	setFlag(FOCUS_TRAVERSAL_KEYS_BACKWARD_SET,true);
	}
	super.setFocusTraversalKeys(id,keystrokes);
	}

	/* --- Transitional java.awt.Component Support ---
	* The methods and fields in this section will migrate to
	* java.awt.Component in the next JDK release.
	*/

	/**
	* Returns true if this component is lightweight, that is, if it doesn't
	* have a native window system peer.
	*
	* @return true if this component is lightweight
	*/
	@SuppressWarnings("deprecation")
	public static boolean isLightweightComponent(Component c) {
	return c.getPeer() instanceof LightweightPeer;
	}


	/**
	* @deprecated As of JDK 5,
	* replaced by <code>Component.setBounds(int, int, int, int)</code>.
	* <p>
	* Moves and resizes this component.
	*
	* @param x the new horizontal location
	* @param y the new vertical location
	* @param w the new width
	* @param h the new height
	* @see java.awt.Component#setBounds
	*/
	@Deprecated
	public void reshape(int x, int y, int w, int h) {
	super.reshape(x, y, w, h);
	}


	/**
	* Stores the bounds of this component into "return value"
	* <code>rv</code> and returns <code>rv</code>.
	* If <code>rv</code> is <code>null</code> a new <code>Rectangle</code>
	* is allocated. This version of <code>getBounds</code> is useful
	* if the caller wants to avoid allocating a new <code>Rectangle</code>
	* object on the heap.
	*
	* @param rv the return value, modified to the component's bounds
	* @return <code>rv</code>; if <code>rv</code> is <code>null</code>
	* return a newly created <code>Rectangle</code> with this
	* component's bounds
	*/
	public Rectangle getBounds(Rectangle rv) {
	if (rv == null) {
	return new Rectangle(getX(), getY(), getWidth(), getHeight());
	}
	else {
	rv.setBounds(getX(), getY(), getWidth(), getHeight());
	return rv;
	}
	}


	/**
	* Stores the width/height of this component into "return value"
	* <code>rv</code> and returns <code>rv</code>.
	* If <code>rv</code> is <code>null</code> a new <code>Dimension</code>
	* object is allocated. This version of <code>getSize</code>
	* is useful if the caller wants to avoid allocating a new
	* <code>Dimension</code> object on the heap.
	*
	* @param rv the return value, modified to the component's size
	* @return <code>rv</code>
	*/
	public Dimension getSize(Dimension rv) {
	if (rv == null) {
	return new Dimension(getWidth(), getHeight());
	}
	else {
	rv.setSize(getWidth(), getHeight());
	return rv;
	}
	}


	/**
	* Stores the x,y origin of this component into "return value"
	* <code>rv</code> and returns <code>rv</code>.
	* If <code>rv</code> is <code>null</code> a new <code>Point</code>
	* is allocated. This version of <code>getLocation</code> is useful
	* if the caller wants to avoid allocating a new <code>Point</code>
	* object on the heap.
	*
	* @param rv the return value, modified to the component's location
	* @return <code>rv</code>
	*/
	public Point getLocation(Point rv) {
	if (rv == null) {
	return new Point(getX(), getY());
	}
	else {
	rv.setLocation(getX(), getY());
	return rv;
	}
	}


	/**
	* Returns the current x coordinate of the component's origin.
	* This method is preferable to writing
	* <code>component.getBounds().x</code>, or
	* <code>component.getLocation().x</code> because it doesn't cause any
	* heap allocations.
	*
	* @return the current x coordinate of the component's origin
	*/
	public int getX() { return super.getX(); }


	/**
	* Returns the current y coordinate of the component's origin.
	* This method is preferable to writing
	* <code>component.getBounds().y</code>, or
	* <code>component.getLocation().y</code> because it doesn't cause any
	* heap allocations.
	*
	* @return the current y coordinate of the component's origin
	*/
	public int getY() { return super.getY(); }


	/**
	* Returns the current width of this component.
	* This method is preferable to writing
	* <code>component.getBounds().width</code>, or
	* <code>component.getSize().width</code> because it doesn't cause any
	* heap allocations.
	*
	* @return the current width of this component
	*/
	public int getWidth() { return super.getWidth(); }


	/**
	* Returns the current height of this component.
	* This method is preferable to writing
	* <code>component.getBounds().height</code>, or
	* <code>component.getSize().height</code> because it doesn't cause any
	* heap allocations.
	*
	* @return the current height of this component
	*/
	public int getHeight() { return super.getHeight(); }

	/**
	* Returns true if this component is completely opaque.
	* <p>
	* An opaque component paints every pixel within its
	* rectangular bounds. A non-opaque component paints only a subset of
	* its pixels or none at all, allowing the pixels underneath it to
	* "show through". Therefore, a component that does not fully paint
	* its pixels provides a degree of transparency.
	* <p>
	* Subclasses that guarantee to always completely paint their contents
	* should override this method and return true.
	*
	* @return true if this component is completely opaque
	* @see #setOpaque
	*/
	public boolean isOpaque() {
	return getFlag(IS_OPAQUE);
	}

	/**
	* If true the component paints every pixel within its bounds.
	* Otherwise, the component may not paint some or all of its
	* pixels, allowing the underlying pixels to show through.
	* <p>
	* The default value of this property is false for <code>JComponent</code>.
	* However, the default value for this property on most standard
	* <code>JComponent</code> subclasses (such as <code>JButton</code> and
	* <code>JTree</code>) is look-and-feel dependent.
	*
	* @param isOpaque true if this component should be opaque
	* @see #isOpaque
	* @beaninfo
	* bound: true
	* expert: true
	* description: The component's opacity
	*/
	public void setOpaque(boolean isOpaque) {
	boolean oldValue = getFlag(IS_OPAQUE);
	setFlag(IS_OPAQUE, isOpaque);
	setFlag(OPAQUE_SET, true);
	firePropertyChange("opaque", oldValue, isOpaque);
	}


	/**
	* If the specified rectangle is completely obscured by any of this
	* component's opaque children then returns true. Only direct children
	* are considered, more distant descendants are ignored. A
	* <code>JComponent</code> is opaque if
	* <code>JComponent.isOpaque()</code> returns true, other lightweight
	* components are always considered transparent, and heavyweight components
	* are always considered opaque.
	*
	* @param x x value of specified rectangle
	* @param y y value of specified rectangle
	* @param width width of specified rectangle
	* @param height height of specified rectangle
	* @return true if the specified rectangle is obscured by an opaque child
	*/
	boolean rectangleIsObscured(int x,int y,int width,int height)
	{
	int numChildren = getComponentCount();

	for(int i = 0; i < numChildren; i++) {
	Component child = getComponent(i);
	int cx, cy, cw, ch;

	cx = child.getX();
	cy = child.getY();
	cw = child.getWidth();
	ch = child.getHeight();

	if (x >= cx && (x + width) <= (cx + cw) &&
	y >= cy && (y + height) <= (cy + ch) && child.isVisible()) {

	if(child instanceof JComponent) {
	// System.out.println("A) checking opaque: " + ((JComponent)child).isOpaque() + " " + child);
	// System.out.print("B) ");
	// Thread.dumpStack();
	return child.isOpaque();
	} else {
	/** Sometimes a heavy weight can have a bound larger than its peer size
	* so we should always draw under heavy weights
	*/
	return false;
	}
	}
	}

	return false;
	}


	/**
	* Returns the <code>Component</code>'s "visible rect rectangle" - the
	* intersection of the visible rectangles for the component <code>c</code>
	* and all of its ancestors. The return value is stored in
	* <code>visibleRect</code>.
	*
	* @param c the component
	* @param visibleRect a <code>Rectangle</code> computed as the
	* intersection of all visible rectangles for the component
	* <code>c</code> and all of its ancestors -- this is the
	* return value for this method
	* @see #getVisibleRect
	*/
	static final void computeVisibleRect(Component c, Rectangle visibleRect) {
	Container p = c.getParent();
	Rectangle bounds = c.getBounds();

	if (p == null \|\| p instanceof Window \|\| p instanceof Applet) {
	visibleRect.setBounds(0, 0, bounds.width, bounds.height);
	} else {
	computeVisibleRect(p, visibleRect);
	visibleRect.x -= bounds.x;
	visibleRect.y -= bounds.y;
	SwingUtilities.computeIntersection(0,0,bounds.width,bounds.height,visibleRect);
	}
	}


	/**
	* Returns the <code>Component</code>'s "visible rect rectangle" - the
	* intersection of the visible rectangles for this component
	* and all of its ancestors. The return value is stored in
	* <code>visibleRect</code>.
	*
	* @param visibleRect a <code>Rectangle</code> computed as the
	* intersection of all visible rectangles for this
	* component and all of its ancestors -- this is the return
	* value for this method
	* @see #getVisibleRect
	*/
	public void computeVisibleRect(Rectangle visibleRect) {
	computeVisibleRect(this, visibleRect);
	}


	/**
	* Returns the <code>Component</code>'s "visible rectangle" - the
	* intersection of this component's visible rectangle,
	* <code>new Rectangle(0, 0, getWidth(), getHeight())</code>,
	* and all of its ancestors' visible rectangles.
	*
	* @return the visible rectangle
	*/
	public Rectangle getVisibleRect() {
	Rectangle visibleRect = new Rectangle();

	computeVisibleRect(visibleRect);
	return visibleRect;
	}

	/**
	* Support for reporting bound property changes for boolean properties.
	* This method can be called when a bound property has changed and it will
	* send the appropriate PropertyChangeEvent to any registered
	* PropertyChangeListeners.
	*
	* @param propertyName the property whose value has changed
	* @param oldValue the property's previous value
	* @param newValue the property's new value
	*/
	public void firePropertyChange(String propertyName,
	boolean oldValue, boolean newValue) {
	super.firePropertyChange(propertyName, oldValue, newValue);
	}


	/**
	* Support for reporting bound property changes for integer properties.
	* This method can be called when a bound property has changed and it will
	* send the appropriate PropertyChangeEvent to any registered
	* PropertyChangeListeners.
	*
	* @param propertyName the property whose value has changed
	* @param oldValue the property's previous value
	* @param newValue the property's new value
	*/
	public void firePropertyChange(String propertyName,
	int oldValue, int newValue) {
	super.firePropertyChange(propertyName, oldValue, newValue);
	}

	// XXX This method is implemented as a workaround to a JLS issue with ambiguous
	// methods. This should be removed once 4758654 is resolved.
	public void firePropertyChange(String propertyName, char oldValue, char newValue) {
	super.firePropertyChange(propertyName, oldValue, newValue);
	}

	/**
	* Supports reporting constrained property changes.
	* This method can be called when a constrained property has changed
	* and it will send the appropriate <code>PropertyChangeEvent</code>
	* to any registered <code>VetoableChangeListeners</code>.
	*
	* @param propertyName the name of the property that was listened on
	* @param oldValue the old value of the property
	* @param newValue the new value of the property
	* @exception java.beans.PropertyVetoException when the attempt to set the
	* property is vetoed by the component
	*/
	protected void fireVetoableChange(String propertyName, Object oldValue, Object newValue)
	throws java.beans.PropertyVetoException
	{
	if (vetoableChangeSupport == null) {
	return;
	}
	vetoableChangeSupport.fireVetoableChange(propertyName, oldValue, newValue);
	}


	/**
	* Adds a <code>VetoableChangeListener</code> to the listener list.
	* The listener is registered for all properties.
	*
	* @param listener the <code>VetoableChangeListener</code> to be added
	*/
	public synchronized void addVetoableChangeListener(VetoableChangeListener listener) {
	if (vetoableChangeSupport == null) {
	vetoableChangeSupport = new java.beans.VetoableChangeSupport(this);
	}
	vetoableChangeSupport.addVetoableChangeListener(listener);
	}


	/**
	* Removes a <code>VetoableChangeListener</code> from the listener list.
	* This removes a <code>VetoableChangeListener</code> that was registered
	* for all properties.
	*
	* @param listener the <code>VetoableChangeListener</code> to be removed
	*/
	public synchronized void removeVetoableChangeListener(VetoableChangeListener listener) {
	if (vetoableChangeSupport == null) {
	return;
	}
	vetoableChangeSupport.removeVetoableChangeListener(listener);
	}


	/**
	* Returns an array of all the vetoable change listeners
	* registered on this component.
	*
	* @return all of the component's <code>VetoableChangeListener</code>s
	* or an empty
	* array if no vetoable change listeners are currently registered
	*
	* @see #addVetoableChangeListener
	* @see #removeVetoableChangeListener
	*
	* @since 1.4
	*/
	public synchronized VetoableChangeListener[] getVetoableChangeListeners() {
	if (vetoableChangeSupport == null) {
	return new VetoableChangeListener[0];
	}
	return vetoableChangeSupport.getVetoableChangeListeners();
	}


	/**
	* Returns the top-level ancestor of this component (either the
	* containing <code>Window</code> or <code>Applet</code>),
	* or <code>null</code> if this component has not
	* been added to any container.
	*
	* @return the top-level <code>Container</code> that this component is in,
	* or <code>null</code> if not in any container
	*/
	public Container getTopLevelAncestor() {
	for(Container p = this; p != null; p = p.getParent()) {
	if(p instanceof Window \|\| p instanceof Applet) {
	return p;
	}
	}
	return null;
	}

	private AncestorNotifier getAncestorNotifier() {
	return (AncestorNotifier)
	getClientProperty(JComponent_ANCESTOR_NOTIFIER);
	}

	/**
	* Registers <code>listener</code> so that it will receive
	* <code>AncestorEvents</code> when it or any of its ancestors
	* move or are made visible or invisible.
	* Events are also sent when the component or its ancestors are added
	* or removed from the containment hierarchy.
	*
	* @param listener the <code>AncestorListener</code> to register
	* @see AncestorEvent
	*/
	public void addAncestorListener(AncestorListener listener) {
	AncestorNotifier ancestorNotifier = getAncestorNotifier();
	if (ancestorNotifier == null) {
	ancestorNotifier = new AncestorNotifier(this);
	putClientProperty(JComponent_ANCESTOR_NOTIFIER,
	ancestorNotifier);
	}
	ancestorNotifier.addAncestorListener(listener);
	}

	/**
	* Unregisters <code>listener</code> so that it will no longer receive
	* <code>AncestorEvents</code>.
	*
	* @param listener the <code>AncestorListener</code> to be removed
	* @see #addAncestorListener
	*/
	public void removeAncestorListener(AncestorListener listener) {
	AncestorNotifier ancestorNotifier = getAncestorNotifier();
	if (ancestorNotifier == null) {
	return;
	}
	ancestorNotifier.removeAncestorListener(listener);
	if (ancestorNotifier.listenerList.getListenerList().length == 0) {
	ancestorNotifier.removeAllListeners();
	putClientProperty(JComponent_ANCESTOR_NOTIFIER, null);
	}
	}

	/**
	* Returns an array of all the ancestor listeners
	* registered on this component.
	*
	* @return all of the component's <code>AncestorListener</code>s
	* or an empty
	* array if no ancestor listeners are currently registered
	*
	* @see #addAncestorListener
	* @see #removeAncestorListener
	*
	* @since 1.4
	*/
	public AncestorListener[] getAncestorListeners() {
	AncestorNotifier ancestorNotifier = getAncestorNotifier();
	if (ancestorNotifier == null) {
	return new AncestorListener[0];
	}
	return ancestorNotifier.getAncestorListeners();
	}

	/**
	* Returns an array of all the objects currently registered
	* as <code><em>Foo</em>Listener</code>s
	* upon this <code>JComponent</code>.
	* <code><em>Foo</em>Listener</code>s are registered using the
	* <code>add<em>Foo</em>Listener</code> method.
	*
	* <p>
	*
	* You can specify the <code>listenerType</code> argument
	* with a class literal,
	* such as
	* <code><em>Foo</em>Listener.class</code>.
	* For example, you can query a
	* <code>JComponent</code> <code>c</code>
	* for its mouse listeners with the following code:
	* <pre>MouseListener[] mls = (MouseListener[])(c.getListeners(MouseListener.class));</pre>
	* If no such listeners exist, this method returns an empty array.
	*
	* @param listenerType the type of listeners requested; this parameter
	* should specify an interface that descends from
	* <code>java.util.EventListener</code>
	* @return an array of all objects registered as
	* <code><em>Foo</em>Listener</code>s on this component,
	* or an empty array if no such
	* listeners have been added
	* @exception ClassCastException if <code>listenerType</code>
	* doesn't specify a class or interface that implements
	* <code>java.util.EventListener</code>
	*
	* @since 1.3
	*
	* @see #getVetoableChangeListeners
	* @see #getAncestorListeners
	*/
	public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
	T[] result;
	if (listenerType == AncestorListener.class) {
	// AncestorListeners are handled by the AncestorNotifier
	result = (T[])getAncestorListeners();
	}
	else if (listenerType == VetoableChangeListener.class) {
	// VetoableChangeListeners are handled by VetoableChangeSupport
	result = (T[])getVetoableChangeListeners();
	}
	else if (listenerType == PropertyChangeListener.class) {
	// PropertyChangeListeners are handled by PropertyChangeSupport
	result = (T[])getPropertyChangeListeners();
	}
	else {
	result = listenerList.getListeners(listenerType);
	}

	if (result.length == 0) {
	return super.getListeners(listenerType);
	}
	return result;
	}

	/**
	* Notifies this component that it now has a parent component.
	* When this method is invoked, the chain of parent components is
	* set up with <code>KeyboardAction</code> event listeners.
	* This method is called by the toolkit internally and should
	* not be called directly by programs.
	*
	* @see #registerKeyboardAction
	*/
	public void addNotify() {
	super.addNotify();
	firePropertyChange("ancestor", null, getParent());

	registerWithKeyboardManager(false);
	registerNextFocusableComponent();
	}


	/**
	* Notifies this component that it no longer has a parent component.
	* When this method is invoked, any <code>KeyboardAction</code>s
	* set up in the the chain of parent components are removed.
	* This method is called by the toolkit internally and should
	* not be called directly by programs.
	*
	* @see #registerKeyboardAction
	*/
	public void removeNotify() {
	super.removeNotify();
	// This isn't strictly correct. The event shouldn't be
	// fired until after the parent is set to null. But
	// we only get notified before that happens
	firePropertyChange("ancestor", getParent(), null);

	unregisterWithKeyboardManager();
	deregisterNextFocusableComponent();

	if (getCreatedDoubleBuffer()) {
	RepaintManager.currentManager(this).resetDoubleBuffer();
	setCreatedDoubleBuffer(false);
	}
	if (autoscrolls) {
	Autoscroller.stop(this);
	}
	}


	/**
	* Adds the specified region to the dirty region list if the component
	* is showing. The component will be repainted after all of the
	* currently pending events have been dispatched.
	*
	* @param tm this parameter is not used
	* @param x the x value of the dirty region
	* @param y the y value of the dirty region
	* @param width the width of the dirty region
	* @param height the height of the dirty region
	* @see #isPaintingOrigin()
	* @see java.awt.Component#isShowing
	* @see RepaintManager#addDirtyRegion
	*/
	public void repaint(long tm, int x, int y, int width, int height) {
	RepaintManager.currentManager(SunToolkit.targetToAppContext(this))
	.addDirtyRegion(this, x, y, width, height);
	}


	/**
	* Adds the specified region to the dirty region list if the component
	* is showing. The component will be repainted after all of the
	* currently pending events have been dispatched.
	*
	* @param r a <code>Rectangle</code> containing the dirty region
	* @see #isPaintingOrigin()
	* @see java.awt.Component#isShowing
	* @see RepaintManager#addDirtyRegion
	*/
	public void repaint(Rectangle r) {
	repaint(0,r.x,r.y,r.width,r.height);
	}


	/**
	* Supports deferred automatic layout.
	* <p>
	* Calls <code>invalidate</code> and then adds this component's
	* <code>validateRoot</code> to a list of components that need to be
	* validated. Validation will occur after all currently pending
	* events have been dispatched. In other words after this method
	* is called, the first validateRoot (if any) found when walking
	* up the containment hierarchy of this component will be validated.
	* By default, <code>JRootPane</code>, <code>JScrollPane</code>,
	* and <code>JTextField</code> return true
	* from <code>isValidateRoot</code>.
	* <p>
	* This method will automatically be called on this component
	* when a property value changes such that size, location, or
	* internal layout of this component has been affected. This automatic
	* updating differs from the AWT because programs generally no
	* longer need to invoke <code>validate</code> to get the contents of the
	* GUI to update.
	*
	* @see java.awt.Component#invalidate
	* @see java.awt.Container#validate
	* @see #isValidateRoot
	* @see RepaintManager#addInvalidComponent
	*/
	public void revalidate() {
	if (getParent() == null) {
	// Note: We don't bother invalidating here as once added
	// to a valid parent invalidate will be invoked (addImpl
	// invokes addNotify which will invoke invalidate on the
	// new Component). Also, if we do add a check to isValid
	// here it can potentially be called before the constructor
	// which was causing some people grief.
	return;
	}
	if (SunToolkit.isDispatchThreadForAppContext(this)) {
	invalidate();
	RepaintManager.currentManager(this).addInvalidComponent(this);
	}
	else {
	// To avoid a flood of Runnables when constructing GUIs off
	// the EDT, a flag is maintained as to whether or not
	// a Runnable has been scheduled.
	if (revalidateRunnableScheduled.getAndSet(true)) {
	return;
	}
	SunToolkit.executeOnEventHandlerThread(this, () -> {
	revalidateRunnableScheduled.set(false);
	revalidate();
	});
	}
	}

	/**
	* If this method returns true, <code>revalidate</code> calls by
	* descendants of this component will cause the entire tree
	* beginning with this root to be validated.
	* Returns false by default. <code>JScrollPane</code> overrides
	* this method and returns true.
	*
	* @return always returns false
	* @see #revalidate
	* @see java.awt.Component#invalidate
	* @see java.awt.Container#validate
	* @see java.awt.Container#isValidateRoot
	*/
	@Override
	public boolean isValidateRoot() {
	return false;
	}


	/**
	* Returns true if this component tiles its children -- that is, if
	* it can guarantee that the children will not overlap. The
	* repainting system is substantially more efficient in this
	* common case. <code>JComponent</code> subclasses that can't make this
	* guarantee, such as <code>JLayeredPane</code>,
	* should override this method to return false.
	*
	* @return always returns true
	*/
	public boolean isOptimizedDrawingEnabled() {
	return true;
	}

	/**
	* Returns {@code true} if a paint triggered on a child component should cause
	* painting to originate from this Component, or one of its ancestors.
	* <p>
	* Calling {@link #repaint} or {@link #paintImmediately(int, int, int, int)}
	* on a Swing component will result in calling
	* the {@link JComponent#paintImmediately(int, int, int, int)} method of
	* the first ancestor which {@code isPaintingOrigin()} returns {@code true}, if there are any.
	* <p>
	* {@code JComponent} subclasses that need to be painted when any of their
	* children are repainted should override this method to return {@code true}.
	*
	* @return always returns {@code false}
	*
	* @see #paintImmediately(int, int, int, int)
	*/
	protected boolean isPaintingOrigin() {
	return false;
	}

	/**
	* Paints the specified region in this component and all of its
	* descendants that overlap the region, immediately.
	* <p>
	* It's rarely necessary to call this method. In most cases it's
	* more efficient to call repaint, which defers the actual painting
	* and can collapse redundant requests into a single paint call.
	* This method is useful if one needs to update the display while
	* the current event is being dispatched.
	* <p>
	* This method is to be overridden when the dirty region needs to be changed
	* for components that are painting origins.
	*
	* @param x the x value of the region to be painted
	* @param y the y value of the region to be painted
	* @param w the width of the region to be painted
	* @param h the height of the region to be painted
	* @see #repaint
	* @see #isPaintingOrigin()
	*/
	public void paintImmediately(int x,int y,int w, int h) {
	Component c = this;
	Component parent;

	if(!isShowing()) {
	return;
	}

	JComponent paintingOigin = SwingUtilities.getPaintingOrigin(this);
	if (paintingOigin != null) {
	Rectangle rectangle = SwingUtilities.convertRectangle(
	c, new Rectangle(x, y, w, h), paintingOigin);
	paintingOigin.paintImmediately(rectangle.x, rectangle.y, rectangle.width, rectangle.height);
	return;
	}

	while(!c.isOpaque()) {
	parent = c.getParent();
	if(parent != null) {
	x += c.getX();
	y += c.getY();
	c = parent;
	} else {
	break;
	}

	if(!(c instanceof JComponent)) {
	break;
	}
	}
	if(c instanceof JComponent) {
	((JComponent)c)._paintImmediately(x,y,w,h);
	} else {
	c.repaint(x,y,w,h);
	}
	}

	/**
	* Paints the specified region now.
	*
	* @param r a <code>Rectangle</code> containing the region to be painted
	*/
	public void paintImmediately(Rectangle r) {
	paintImmediately(r.x,r.y,r.width,r.height);
	}

	/**
	* Returns whether this component should be guaranteed to be on top.
	* For example, it would make no sense for <code>Menu</code>s to pop up
	* under another component, so they would always return true.
	* Most components will want to return false, hence that is the default.
	*
	* @return always returns false
	*/
	// package private
	boolean alwaysOnTop() {
	return false;
	}

	void setPaintingChild(Component paintingChild) {
	this.paintingChild = paintingChild;
	}

	void _paintImmediately(int x, int y, int w, int h) {
	Graphics g;
	Container c;
	Rectangle b;

	int tmpX, tmpY, tmpWidth, tmpHeight;
	int offsetX=0,offsetY=0;

	boolean hasBuffer = false;

	JComponent bufferedComponent = null;
	JComponent paintingComponent = this;

	RepaintManager repaintManager = RepaintManager.currentManager(this);
	// parent Container's up to Window or Applet. First container is
	// the direct parent. Note that in testing it was faster to
	// alloc a new Vector vs keeping a stack of them around, and gc
	// seemed to have a minimal effect on this.
	java.util.List<Component> path = new java.util.ArrayList<Component>(7);
	int pIndex = -1;
	int pCount = 0;

	tmpX = tmpY = tmpWidth = tmpHeight = 0;

	Rectangle paintImmediatelyClip = fetchRectangle();
	paintImmediatelyClip.x = x;
	paintImmediatelyClip.y = y;
	paintImmediatelyClip.width = w;
	paintImmediatelyClip.height = h;


	// System.out.println("1) ************* in _paintImmediately for " + this);

	boolean ontop = alwaysOnTop() && isOpaque();
	if (ontop) {
	SwingUtilities.computeIntersection(0, 0, getWidth(), getHeight(),
	paintImmediatelyClip);
	if (paintImmediatelyClip.width == 0) {
	recycleRectangle(paintImmediatelyClip);
	return;
	}
	}
	Component child;
	for (c = this, child = null;
	c != null && !(c instanceof Window) && !(c instanceof Applet);
	child = c, c = c.getParent()) {
	JComponent jc = (c instanceof JComponent) ? (JComponent)c :
	null;
	path.add(c);
	if(!ontop && jc != null && !jc.isOptimizedDrawingEnabled()) {
	boolean resetPC;

	// Children of c may overlap, three possible cases for the
	// painting region:
	// . Completely obscured by an opaque sibling, in which
	// case there is no need to paint.
	// . Partially obscured by a sibling: need to start
	// painting from c.
	// . Otherwise we aren't obscured and thus don't need to
	// start painting from parent.
	if (c != this) {
	if (jc.isPaintingOrigin()) {
	resetPC = true;
	}
	else {
	Component[] children = c.getComponents();
	int i = 0;
	for (; i<children.length; i++) {
	if (children[i] == child) break;
	}
	switch (jc.getObscuredState(i,
	paintImmediatelyClip.x,
	paintImmediatelyClip.y,
	paintImmediatelyClip.width,
	paintImmediatelyClip.height)) {
	case NOT_OBSCURED:
	resetPC = false;
	break;
	case COMPLETELY_OBSCURED:
	recycleRectangle(paintImmediatelyClip);
	return;
	default:
	resetPC = true;
	break;
	}
	}
	}
	else {
	resetPC = false;
	}

	if (resetPC) {
	// Get rid of any buffer since we draw from here and
	// we might draw something larger
	paintingComponent = jc;
	pIndex = pCount;
	offsetX = offsetY = 0;
	hasBuffer = false;
	}
	}
	pCount++;

	// look to see if the parent (and therefor this component)
	// is double buffered
	if(repaintManager.isDoubleBufferingEnabled() && jc != null &&
	jc.isDoubleBuffered()) {
	hasBuffer = true;
	bufferedComponent = jc;
	}

	// if we aren't on top, include the parent's clip
	if (!ontop) {
	int bx = c.getX();
	int by = c.getY();
	tmpWidth = c.getWidth();
	tmpHeight = c.getHeight();
	SwingUtilities.computeIntersection(tmpX,tmpY,tmpWidth,tmpHeight,paintImmediatelyClip);
	paintImmediatelyClip.x += bx;
	paintImmediatelyClip.y += by;
	offsetX += bx;
	offsetY += by;
	}
	}

	// If the clip width or height is negative, don't bother painting
	if(c == null \|\| c.getPeer() == null \|\|
	paintImmediatelyClip.width <= 0 \|\|
	paintImmediatelyClip.height <= 0) {
	recycleRectangle(paintImmediatelyClip);
	return;
	}

	paintingComponent.setFlag(IS_REPAINTING, true);

	paintImmediatelyClip.x -= offsetX;
	paintImmediatelyClip.y -= offsetY;

	// Notify the Components that are going to be painted of the
	// child component to paint to.
	if(paintingComponent != this) {
	Component comp;
	int i = pIndex;
	for(; i > 0 ; i--) {
	comp = path.get(i);
	if(comp instanceof JComponent) {
	((JComponent)comp).setPaintingChild(path.get(i-1));
	}
	}
	}
	try {
	if ((g = safelyGetGraphics(paintingComponent, c)) != null) {
	try {
	if (hasBuffer) {
	RepaintManager rm = RepaintManager.currentManager(
	bufferedComponent);
	rm.beginPaint();
	try {
	rm.paint(paintingComponent, bufferedComponent, g,
	paintImmediatelyClip.x,
	paintImmediatelyClip.y,
	paintImmediatelyClip.width,
	paintImmediatelyClip.height);
	} finally {
	rm.endPaint();
	}
	} else {
	g.setClip(paintImmediatelyClip.x, paintImmediatelyClip.y,
	paintImmediatelyClip.width, paintImmediatelyClip.height);
	paintingComponent.paint(g);
	}
	} finally {
	g.dispose();
	}
	}
	}
	finally {
	// Reset the painting child for the parent components.
	if(paintingComponent != this) {
	Component comp;
	int i = pIndex;
	for(; i > 0 ; i--) {
	comp = path.get(i);
	if(comp instanceof JComponent) {
	((JComponent)comp).setPaintingChild(null);
	}
	}
	}
	paintingComponent.setFlag(IS_REPAINTING, false);
	}
	recycleRectangle(paintImmediatelyClip);
	}

	/**
	* Paints to the specified graphics. This does not set the clip and it
	* does not adjust the Graphics in anyway, callers must do that first.
	* This method is package-private for RepaintManager.PaintManager and
	* its subclasses to call, it is NOT intended for general use outside
	* of that.
	*/
	void paintToOffscreen(Graphics g, int x, int y, int w, int h, int maxX,
	int maxY) {
	try {
	setFlag(ANCESTOR_USING_BUFFER, true);
	if ((y + h) < maxY \|\| (x + w) < maxX) {
	setFlag(IS_PAINTING_TILE, true);
	}
	if (getFlag(IS_REPAINTING)) {
	// Called from paintImmediately (RepaintManager) to fill
	// repaint request
	paint(g);
	} else {
	// Called from paint() (AWT) to repair damage
	if(!rectangleIsObscured(x, y, w, h)) {
	paintComponent(g);
	paintBorder(g);
	}
	paintChildren(g);
	}
	} finally {
	setFlag(ANCESTOR_USING_BUFFER, false);
	setFlag(IS_PAINTING_TILE, false);
	}
	}

	/**
	* Returns whether or not the region of the specified component is
	* obscured by a sibling.
	*
	* @return NOT_OBSCURED if non of the siblings above the Component obscure
	* it, COMPLETELY_OBSCURED if one of the siblings completely
	* obscures the Component or PARTIALLY_OBSCURED if the Component is
	* only partially obscured.
	*/
	private int getObscuredState(int compIndex, int x, int y, int width,
	int height) {
	int retValue = NOT_OBSCURED;
	Rectangle tmpRect = fetchRectangle();

	for (int i = compIndex - 1 ; i >= 0 ; i--) {
	Component sibling = getComponent(i);
	if (!sibling.isVisible()) {
	continue;
	}
	Rectangle siblingRect;
	boolean opaque;
	if (sibling instanceof JComponent) {
	opaque = sibling.isOpaque();
	if (!opaque) {
	if (retValue == PARTIALLY_OBSCURED) {
	continue;
	}
	}
	}
	else {
	opaque = true;
	}
	siblingRect = sibling.getBounds(tmpRect);
	if (opaque && x >= siblingRect.x && (x + width) <=
	(siblingRect.x + siblingRect.width) &&
	y >= siblingRect.y && (y + height) <=
	(siblingRect.y + siblingRect.height)) {
	recycleRectangle(tmpRect);
	return COMPLETELY_OBSCURED;
	}
	else if (retValue == NOT_OBSCURED &&
	!((x + width <= siblingRect.x) \|\|
	(y + height <= siblingRect.y) \|\|
	(x >= siblingRect.x + siblingRect.width) \|\|
	(y >= siblingRect.y + siblingRect.height))) {
	retValue = PARTIALLY_OBSCURED;
	}
	}
	recycleRectangle(tmpRect);
	return retValue;
	}

	/**
	* Returns true, which implies that before checking if a child should
	* be painted it is first check that the child is not obscured by another
	* sibling. This is only checked if <code>isOptimizedDrawingEnabled</code>
	* returns false.
	*
	* @return always returns true
	*/
	boolean checkIfChildObscuredBySibling() {
	return true;
	}


	private void setFlag(int aFlag, boolean aValue) {
	if(aValue) {
	flags \|= (1 << aFlag);
	} else {
	flags &= ~(1 << aFlag);
	}
	}
	private boolean getFlag(int aFlag) {
	int mask = (1 << aFlag);
	return ((flags & mask) == mask);
	}
	// These functions must be static so that they can be called from
	// subclasses inside the package, but whose inheritance hierarhcy includes
	// classes outside of the package below JComponent (e.g., JTextArea).
	static void setWriteObjCounter(JComponent comp, byte count) {
	comp.flags = (comp.flags & ~(0xFF << WRITE_OBJ_COUNTER_FIRST)) \|
	(count << WRITE_OBJ_COUNTER_FIRST);
	}
	static byte getWriteObjCounter(JComponent comp) {
	return (byte)((comp.flags >> WRITE_OBJ_COUNTER_FIRST) & 0xFF);
	}

	/ Buffering /

	/**
	* Sets whether this component should use a buffer to paint.
	* If set to true, all the drawing from this component will be done
	* in an offscreen painting buffer. The offscreen painting buffer will
	* the be copied onto the screen.
	* If a <code>Component</code> is buffered and one of its ancestor
	* is also buffered, the ancestor buffer will be used.
	*
	* @param aFlag if true, set this component to be double buffered
	*/
	public void setDoubleBuffered(boolean aFlag) {
	setFlag(IS_DOUBLE_BUFFERED,aFlag);
	}

	/**
	* Returns whether this component should use a buffer to paint.
	*
	* @return true if this component is double buffered, otherwise false
	*/
	public boolean isDoubleBuffered() {
	return getFlag(IS_DOUBLE_BUFFERED);
	}

	/**
	* Returns the <code>JRootPane</code> ancestor for this component.
	*
	* @return the <code>JRootPane</code> that contains this component,
	* or <code>null</code> if no <code>JRootPane</code> is found
	*/
	public JRootPane getRootPane() {
	return SwingUtilities.getRootPane(this);
	}


	/ Serialization /

	/**
	* This is called from Component by way of reflection. Do NOT change
	* the name unless you change the code in Component as well.
	*/
	void compWriteObjectNotify() {
	byte count = JComponent.getWriteObjCounter(this);
	JComponent.setWriteObjCounter(this, (byte)(count + 1));
	if (count != 0) {
	return;
	}

	uninstallUIAndProperties();

	/* JTableHeader is in a separate package, which prevents it from
	* being able to override this package-private method the way the
	* other components can. We don't want to make this method protected
	* because it would introduce public-api for a less-than-desirable
	* serialization scheme, so we compromise with this 'instanceof' hack
	* for now.
	*/
	if (getToolTipText() != null \|\|
	this instanceof javax.swing.table.JTableHeader) {
	ToolTipManager.sharedInstance().unregisterComponent(JComponent.this);
	}
	}

	/**
	* This object is the <code>ObjectInputStream</code> callback
	* that's called after a complete graph of objects (including at least
	* one <code>JComponent</code>) has been read.
	* It sets the UI property of each Swing component
	* that was read to the current default with <code>updateUI</code>.
	* <p>
	* As each component is read in we keep track of the current set of
	* root components here, in the roots vector. Note that there's only one
	* <code>ReadObjectCallback</code> per <code>ObjectInputStream</code>,
	* they're stored in the static <code>readObjectCallbacks</code>
	* hashtable.
	*
	* @see java.io.ObjectInputStream#registerValidation
	* @see SwingUtilities#updateComponentTreeUI
	*/
	private class ReadObjectCallback implements ObjectInputValidation
	{
	private final Vector<JComponent> roots = new Vector<JComponent>(1);
	private final ObjectInputStream inputStream;

	ReadObjectCallback(ObjectInputStream s) throws Exception {
	inputStream = s;
	s.registerValidation(this, 0);
	}

	/**
	* This is the method that's called after the entire graph
	* of objects has been read in. It initializes
	* the UI property of all of the copmonents with
	* <code>SwingUtilities.updateComponentTreeUI</code>.
	*/
	public void validateObject() throws InvalidObjectException {
	try {
	for (JComponent root : roots) {
	SwingUtilities.updateComponentTreeUI(root);
	}
	}
	finally {
	readObjectCallbacks.remove(inputStream);
	}
	}

	/**
	* If <code>c</code> isn't a descendant of a component we've already
	* seen, then add it to the roots <code>Vector</code>.
	*
	* @param c the <code>JComponent</code> to add
	*/
	private void registerComponent(JComponent c)
	{
	/* If the Component c is a descendant of one of the
	* existing roots (or it IS an existing root), we're done.
	*/
	for (JComponent root : roots) {
	for(Component p = c; p != null; p = p.getParent()) {
	if (p == root) {
	return;
	}
	}
	}

	/* Otherwise: if Component c is an ancestor of any of the
	* existing roots then remove them and add c (the "new root")
	* to the roots vector.
	*/
	for(int i = 0; i < roots.size(); i++) {
	JComponent root = roots.elementAt(i);
	for(Component p = root.getParent(); p != null; p = p.getParent()) {
	if (p == c) {
	roots.removeElementAt(i--); // !!
	break;
	}
	}
	}

	roots.addElement(c);
	}
	}


	/**
	* We use the <code>ObjectInputStream</code> "registerValidation"
	* callback to update the UI for the entire tree of components
	* after they've all been read in.
	*
	* @param s the <code>ObjectInputStream</code> from which to read
	*/
	private void readObject(ObjectInputStream s)
	throws IOException, ClassNotFoundException
	{
	s.defaultReadObject();

	/* If there's no ReadObjectCallback for this stream yet, that is, if
	* this is the first call to JComponent.readObject() for this
	* graph of objects, then create a callback and stash it
	* in the readObjectCallbacks table. Note that the ReadObjectCallback
	* constructor takes care of calling s.registerValidation().
	*/
	ReadObjectCallback cb = readObjectCallbacks.get(s);
	if (cb == null) {
	try {
	readObjectCallbacks.put(s, cb = new ReadObjectCallback(s));
	}
	catch (Exception e) {
	throw new IOException(e.toString());
	}
	}
	cb.registerComponent(this);

	// Read back the client properties.
	int cpCount = s.readInt();
	if (cpCount > 0) {
	clientProperties = new ArrayTable();
	for (int counter = 0; counter < cpCount; counter++) {
	clientProperties.put(s.readObject(),
	s.readObject());
	}
	}
	if (getToolTipText() != null) {
	ToolTipManager.sharedInstance().registerComponent(this);
	}
	setWriteObjCounter(this, (byte)0);
	revalidateRunnableScheduled = new AtomicBoolean(false);
	}


	/**
	* Before writing a <code>JComponent</code> to an
	* <code>ObjectOutputStream</code> we temporarily uninstall its UI.
	* This is tricky to do because we want to uninstall
	* the UI before any of the <code>JComponent</code>'s children
	* (or its <code>LayoutManager</code> etc.) are written,
	* and we don't want to restore the UI until the most derived
	* <code>JComponent</code> subclass has been been stored.
	*
	* @param s the <code>ObjectOutputStream</code> in which to write
	*/
	private void writeObject(ObjectOutputStream s) throws IOException {
	s.defaultWriteObject();
	if (getUIClassID().equals(uiClassID)) {
	byte count = JComponent.getWriteObjCounter(this);
	JComponent.setWriteObjCounter(this, --count);
	if (count == 0 && ui != null) {
	ui.installUI(this);
	}
	}
	ArrayTable.writeArrayTable(s, clientProperties);
	}


	/**
	* Returns a string representation of this <code>JComponent</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>JComponent</code>
	*/
	protected String paramString() {
	String preferredSizeString = (isPreferredSizeSet() ?
	getPreferredSize().toString() : "");
	String minimumSizeString = (isMinimumSizeSet() ?
	getMinimumSize().toString() : "");
	String maximumSizeString = (isMaximumSizeSet() ?
	getMaximumSize().toString() : "");
	String borderString = (border == null ? ""
	: (border == this ? "this" : border.toString()));

	return super.paramString() +
	",alignmentX=" + alignmentX +
	",alignmentY=" + alignmentY +
	",border=" + borderString +
	",flags=" + flags + // should beef this up a bit
	",maximumSize=" + maximumSizeString +
	",minimumSize=" + minimumSizeString +
	",preferredSize=" + preferredSizeString;
	}

	/**
	* {@inheritDoc}
	*/
	@Override
	@Deprecated
	public void hide() {
	boolean showing = isShowing();
	super.hide();
	if (showing) {
	Container parent = getParent();
	if (parent != null) {
	Rectangle r = getBounds();
	parent.repaint(r.x, r.y, r.width, r.height);
	}
	revalidate();
	}
	}

	}

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