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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.awt.*;
	import java.awt.event.*;
	import java.beans.Transient;
	import java.util.*;
	import javax.swing.event.*;
	import javax.swing.plaf.*;
	import javax.accessibility.*;
	import sun.swing.SwingUtilities2;

	import java.io.Serializable;
	import java.io.ObjectOutputStream;
	import java.io.ObjectInputStream;
	import java.io.IOException;

	/**
	* A component that lets the user switch between a group of components by
	* clicking on a tab with a given title and/or icon.
	* For examples and information on using tabbed panes see
	* <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/tabbedpane.html">How to Use Tabbed Panes</a>,
	* a section in <em>The Java Tutorial</em>.
	* <p>
	* Tabs/components are added to a <code>TabbedPane</code> object by using the
	* <code>addTab</code> and <code>insertTab</code> methods.
	* A tab is represented by an index corresponding
	* to the position it was added in, where the first tab has an index equal to 0
	* and the last tab has an index equal to the tab count minus 1.
	* <p>
	* The <code>TabbedPane</code> uses a <code>SingleSelectionModel</code>
	* to represent the set
	* of tab indices and the currently selected index. If the tab count
	* is greater than 0, then there will always be a selected index, which
	* by default will be initialized to the first tab. If the tab count is
	* 0, then the selected index will be -1.
	* <p>
	* The tab title can be rendered by a <code>Component</code>.
	* For example, the following produce similar results:
	* <pre>
	* // In this case the look and feel renders the title for the tab.
	* tabbedPane.addTab("Tab", myComponent);
	* // In this case the custom component is responsible for rendering the
	* // title of the tab.
	* tabbedPane.addTab(null, myComponent);
	* tabbedPane.setTabComponentAt(0, new JLabel("Tab"));
	* </pre>
	* The latter is typically used when you want a more complex user interaction
	* that requires custom components on the tab. For example, you could
	* provide a custom component that animates or one that has widgets for
	* closing the tab.
	* <p>
	* If you specify a component for a tab, the <code>JTabbedPane</code>
	* will not render any text or icon you have specified for the tab.
	* <p>
	* <strong>Note:</strong>
	* Do not use <code>setVisible</code> directly on a tab component to make it visible,
	* use <code>setSelectedComponent</code> or <code>setSelectedIndex</code> methods instead.
	* <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}.
	*
	* @beaninfo
	* attribute: isContainer true
	* description: A component which provides a tab folder metaphor for
	* displaying one component from a set of components.
	*
	* @author Dave Moore
	* @author Philip Milne
	* @author Amy Fowler
	*
	* @see SingleSelectionModel
	*/
	public class JTabbedPane extends JComponent
	implements Serializable, Accessible, SwingConstants {

	/**
	* The tab layout policy for wrapping tabs in multiple runs when all
	* tabs will not fit within a single run.
	*/
	public static final int WRAP_TAB_LAYOUT = 0;

	/**
	* Tab layout policy for providing a subset of available tabs when all
	* the tabs will not fit within a single run. If all the tabs do
	* not fit within a single run the look and feel will provide a way
	* to navigate to hidden tabs.
	*/
	public static final int SCROLL_TAB_LAYOUT = 1;


	/**
	* @see #getUIClassID
	* @see #readObject
	*/
	private static final String uiClassID = "TabbedPaneUI";

	/**
	* Where the tabs are placed.
	* @see #setTabPlacement
	*/
	protected int tabPlacement = TOP;

	private int tabLayoutPolicy;

	/** The default selection model */
	protected SingleSelectionModel model;

	private boolean haveRegistered;

	/**
	* The <code>changeListener</code> is the listener we add to the
	* model.
	*/
	protected ChangeListener changeListener = null;

	private final java.util.List<Page> pages;

	/* The component that is currently visible */
	private Component visComp = null;

	/**
	* Only one <code>ChangeEvent</code> is needed per <code>TabPane</code>
	* instance since the
	* event's only (read-only) state is the source property. The source
	* of events generated here is always "this".
	*/
	protected transient ChangeEvent changeEvent = null;

	/**
	* Creates an empty <code>TabbedPane</code> with a default
	* tab placement of <code>JTabbedPane.TOP</code>.
	* @see #addTab
	*/
	public JTabbedPane() {
	this(TOP, WRAP_TAB_LAYOUT);
	}

	/**
	* Creates an empty <code>TabbedPane</code> with the specified tab placement
	* of either: <code>JTabbedPane.TOP</code>, <code>JTabbedPane.BOTTOM</code>,
	* <code>JTabbedPane.LEFT</code>, or <code>JTabbedPane.RIGHT</code>.
	*
	* @param tabPlacement the placement for the tabs relative to the content
	* @see #addTab
	*/
	public JTabbedPane(int tabPlacement) {
	this(tabPlacement, WRAP_TAB_LAYOUT);
	}

	/**
	* Creates an empty <code>TabbedPane</code> with the specified tab placement
	* and tab layout policy. Tab placement may be either:
	* <code>JTabbedPane.TOP</code>, <code>JTabbedPane.BOTTOM</code>,
	* <code>JTabbedPane.LEFT</code>, or <code>JTabbedPane.RIGHT</code>.
	* Tab layout policy may be either: <code>JTabbedPane.WRAP_TAB_LAYOUT</code>
	* or <code>JTabbedPane.SCROLL_TAB_LAYOUT</code>.
	*
	* @param tabPlacement the placement for the tabs relative to the content
	* @param tabLayoutPolicy the policy for laying out tabs when all tabs will not fit on one run
	* @exception IllegalArgumentException if tab placement or tab layout policy are not
	* one of the above supported values
	* @see #addTab
	* @since 1.4
	*/
	public JTabbedPane(int tabPlacement, int tabLayoutPolicy) {
	setTabPlacement(tabPlacement);
	setTabLayoutPolicy(tabLayoutPolicy);
	pages = new ArrayList<Page>(1);
	setModel(new DefaultSingleSelectionModel());
	updateUI();
	}

	/**
	* Returns the UI object which implements the L&F for this component.
	*
	* @return a <code>TabbedPaneUI</code> object
	* @see #setUI
	*/
	public TabbedPaneUI getUI() {
	return (TabbedPaneUI)ui;
	}

	/**
	* Sets the UI object which implements the L&F for this component.
	*
	* @param ui the new UI object
	* @see UIDefaults#getUI
	* @beaninfo
	* bound: true
	* hidden: true
	* attribute: visualUpdate true
	* description: The UI object that implements the tabbedpane's LookAndFeel
	*/
	public void setUI(TabbedPaneUI ui) {
	super.setUI(ui);
	// disabled icons are generated by LF so they should be unset here
	for (int i = 0; i < getTabCount(); i++) {
	Icon icon = pages.get(i).disabledIcon;
	if (icon instanceof UIResource) {
	setDisabledIconAt(i, null);
	}
	}
	}

	/**
	* Resets the UI property to a value from the current look and feel.
	*
	* @see JComponent#updateUI
	*/
	public void updateUI() {
	setUI((TabbedPaneUI)UIManager.getUI(this));
	}


	/**
	* Returns the name of the UI class that implements the
	* L&F for this component.
	*
	* @return the string "TabbedPaneUI"
	* @see JComponent#getUIClassID
	* @see UIDefaults#getUI
	*/
	public String getUIClassID() {
	return uiClassID;
	}


	/**
	* We pass <code>ModelChanged</code> events along to the listeners with
	* the tabbedpane (instead of the model itself) as the event source.
	*/
	protected class ModelListener implements ChangeListener, Serializable {
	public void stateChanged(ChangeEvent e) {
	fireStateChanged();
	}
	}

	/**
	* Subclasses that want to handle <code>ChangeEvents</code> differently
	* can override this to return a subclass of <code>ModelListener</code> or
	* another <code>ChangeListener</code> implementation.
	*
	* @see #fireStateChanged
	*/
	protected ChangeListener createChangeListener() {
	return new ModelListener();
	}

	/**
	* Adds a <code>ChangeListener</code> to this tabbedpane.
	*
	* @param l the <code>ChangeListener</code> to add
	* @see #fireStateChanged
	* @see #removeChangeListener
	*/
	public void addChangeListener(ChangeListener l) {
	listenerList.add(ChangeListener.class, l);
	}

	/**
	* Removes a <code>ChangeListener</code> from this tabbedpane.
	*
	* @param l the <code>ChangeListener</code> to remove
	* @see #fireStateChanged
	* @see #addChangeListener
	*/
	public void removeChangeListener(ChangeListener l) {
	listenerList.remove(ChangeListener.class, l);
	}

	/**
	* Returns an array of all the <code>ChangeListener</code>s added
	* to this <code>JTabbedPane</code> with <code>addChangeListener</code>.
	*
	* @return all of the <code>ChangeListener</code>s added or an empty
	* array if no listeners have been added
	* @since 1.4
	*/
	public ChangeListener[] getChangeListeners() {
	return listenerList.getListeners(ChangeListener.class);
	}

	/**
	* Sends a {@code ChangeEvent}, with this {@code JTabbedPane} as the source,
	* to each registered listener. This method is called each time there is
	* a change to either the selected index or the selected tab in the
	* {@code JTabbedPane}. Usually, the selected index and selected tab change
	* together. However, there are some cases, such as tab addition, where the
	* selected index changes and the same tab remains selected. There are other
	* cases, such as deleting the selected tab, where the index remains the
	* same, but a new tab moves to that index. Events are fired for all of
	* these cases.
	*
	* @see #addChangeListener
	* @see EventListenerList
	*/
	protected void fireStateChanged() {
	/* --- Begin code to deal with visibility --- */

	/* This code deals with changing the visibility of components to
	* hide and show the contents for the selected tab. It duplicates
	* logic already present in BasicTabbedPaneUI, logic that is
	* processed during the layout pass. This code exists to allow
	* developers to do things that are quite difficult to accomplish
	* with the previous model of waiting for the layout pass to process
	* visibility changes; such as requesting focus on the new visible
	* component.
	*
	* For the average code, using the typical JTabbedPane methods,
	* all visibility changes will now be processed here. However,
	* the code in BasicTabbedPaneUI still exists, for the purposes
	* of backward compatibility. Therefore, when making changes to
	* this code, ensure that the BasicTabbedPaneUI code is kept in
	* synch.
	*/

	int selIndex = getSelectedIndex();

	/* if the selection is now nothing */
	if (selIndex < 0) {
	/* if there was a previous visible component */
	if (visComp != null && visComp.isVisible()) {
	/* make it invisible */
	visComp.setVisible(false);
	}

	/* now there's no visible component */
	visComp = null;

	/* else - the selection is now something */
	} else {
	/* Fetch the component for the new selection */
	Component newComp = getComponentAt(selIndex);

	/* if the new component is non-null and different */
	if (newComp != null && newComp != visComp) {
	boolean shouldChangeFocus = false;

	/* Note: the following (clearing of the old visible component)
	* is inside this if-statement for good reason: Tabbed pane
	* should continue to show the previously visible component
	* if there is no component for the chosen tab.
	*/

	/* if there was a previous visible component */
	if (visComp != null) {
	shouldChangeFocus =
	(SwingUtilities.findFocusOwner(visComp) != null);

	/* if it's still visible */
	if (visComp.isVisible()) {
	/* make it invisible */
	visComp.setVisible(false);
	}
	}

	if (!newComp.isVisible()) {
	newComp.setVisible(true);
	}

	if (shouldChangeFocus) {
	SwingUtilities2.tabbedPaneChangeFocusTo(newComp);
	}

	visComp = newComp;
	} /* else - the visible component shouldn't changed */
	}

	/* --- End code to deal with visibility --- */

	// Guaranteed to return a non-null array
	Object[] listeners = listenerList.getListenerList();
	// Process the listeners last to first, notifying
	// those that are interested in this event
	for (int i = listeners.length-2; i>=0; i-=2) {
	if (listeners[i]==ChangeListener.class) {
	// Lazily create the event:
	if (changeEvent == null)
	changeEvent = new ChangeEvent(this);
	((ChangeListener)listeners[i+1]).stateChanged(changeEvent);
	}
	}
	}

	/**
	* Returns the model associated with this tabbedpane.
	*
	* @see #setModel
	*/
	public SingleSelectionModel getModel() {
	return model;
	}

	/**
	* Sets the model to be used with this tabbedpane.
	*
	* @param model the model to be used
	* @see #getModel
	* @beaninfo
	* bound: true
	* description: The tabbedpane's SingleSelectionModel.
	*/
	public void setModel(SingleSelectionModel model) {
	SingleSelectionModel oldModel = getModel();

	if (oldModel != null) {
	oldModel.removeChangeListener(changeListener);
	changeListener = null;
	}

	this.model = model;

	if (model != null) {
	changeListener = createChangeListener();
	model.addChangeListener(changeListener);
	}

	firePropertyChange("model", oldModel, model);
	repaint();
	}

	/**
	* Returns the placement of the tabs for this tabbedpane.
	* @see #setTabPlacement
	*/
	public int getTabPlacement() {
	return tabPlacement;
	}

	/**
	* Sets the tab placement for this tabbedpane.
	* Possible values are:<ul>
	* <li><code>JTabbedPane.TOP</code>
	* <li><code>JTabbedPane.BOTTOM</code>
	* <li><code>JTabbedPane.LEFT</code>
	* <li><code>JTabbedPane.RIGHT</code>
	* </ul>
	* The default value, if not set, is <code>SwingConstants.TOP</code>.
	*
	* @param tabPlacement the placement for the tabs relative to the content
	* @exception IllegalArgumentException if tab placement value isn't one
	* of the above valid values
	*
	* @beaninfo
	* preferred: true
	* bound: true
	* attribute: visualUpdate true
	* enum: TOP JTabbedPane.TOP
	* LEFT JTabbedPane.LEFT
	* BOTTOM JTabbedPane.BOTTOM
	* RIGHT JTabbedPane.RIGHT
	* description: The tabbedpane's tab placement.
	*
	*/
	public void setTabPlacement(int tabPlacement) {
	if (tabPlacement != TOP && tabPlacement != LEFT &&
	tabPlacement != BOTTOM && tabPlacement != RIGHT) {
	throw new IllegalArgumentException("illegal tab placement: must be TOP, BOTTOM, LEFT, or RIGHT");
	}
	if (this.tabPlacement != tabPlacement) {
	int oldValue = this.tabPlacement;
	this.tabPlacement = tabPlacement;
	firePropertyChange("tabPlacement", oldValue, tabPlacement);
	revalidate();
	repaint();
	}
	}

	/**
	* Returns the policy used by the tabbedpane to layout the tabs when all the
	* tabs will not fit within a single run.
	* @see #setTabLayoutPolicy
	* @since 1.4
	*/
	public int getTabLayoutPolicy() {
	return tabLayoutPolicy;
	}

	/**
	* Sets the policy which the tabbedpane will use in laying out the tabs
	* when all the tabs will not fit within a single run.
	* Possible values are:
	* <ul>
	* <li><code>JTabbedPane.WRAP_TAB_LAYOUT</code>
	* <li><code>JTabbedPane.SCROLL_TAB_LAYOUT</code>
	* </ul>
	*
	* The default value, if not set by the UI, is <code>JTabbedPane.WRAP_TAB_LAYOUT</code>.
	* <p>
	* Some look and feels might only support a subset of the possible
	* layout policies, in which case the value of this property may be
	* ignored.
	*
	* @param tabLayoutPolicy the policy used to layout the tabs
	* @exception IllegalArgumentException if layoutPolicy value isn't one
	* of the above valid values
	* @see #getTabLayoutPolicy
	* @since 1.4
	*
	* @beaninfo
	* preferred: true
	* bound: true
	* attribute: visualUpdate true
	* enum: WRAP_TAB_LAYOUT JTabbedPane.WRAP_TAB_LAYOUT
	* SCROLL_TAB_LAYOUT JTabbedPane.SCROLL_TAB_LAYOUT
	* description: The tabbedpane's policy for laying out the tabs
	*
	*/
	public void setTabLayoutPolicy(int tabLayoutPolicy) {
	if (tabLayoutPolicy != WRAP_TAB_LAYOUT && tabLayoutPolicy != SCROLL_TAB_LAYOUT) {
	throw new IllegalArgumentException("illegal tab layout policy: must be WRAP_TAB_LAYOUT or SCROLL_TAB_LAYOUT");
	}
	if (this.tabLayoutPolicy != tabLayoutPolicy) {
	int oldValue = this.tabLayoutPolicy;
	this.tabLayoutPolicy = tabLayoutPolicy;
	firePropertyChange("tabLayoutPolicy", oldValue, tabLayoutPolicy);
	revalidate();
	repaint();
	}
	}

	/**
	* Returns the currently selected index for this tabbedpane.
	* Returns -1 if there is no currently selected tab.
	*
	* @return the index of the selected tab
	* @see #setSelectedIndex
	*/
	@Transient
	public int getSelectedIndex() {
	return model.getSelectedIndex();
	}

	/**
	* Sets the selected index for this tabbedpane. The index must be
	* a valid tab index or -1, which indicates that no tab should be selected
	* (can also be used when there are no tabs in the tabbedpane). If a -1
	* value is specified when the tabbedpane contains one or more tabs, then
	* the results will be implementation defined.
	*
	* @param index the index to be selected
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < -1 \|\| index >= tab count)}
	*
	* @see #getSelectedIndex
	* @see SingleSelectionModel#setSelectedIndex
	* @beaninfo
	* preferred: true
	* description: The tabbedpane's selected tab index.
	*/
	public void setSelectedIndex(int index) {
	if (index != -1) {
	checkIndex(index);
	}
	setSelectedIndexImpl(index, true);
	}


	private void setSelectedIndexImpl(int index, boolean doAccessibleChanges) {
	int oldIndex = model.getSelectedIndex();
	Page oldPage = null, newPage = null;
	String oldName = null;

	doAccessibleChanges = doAccessibleChanges && (oldIndex != index);

	if (doAccessibleChanges) {
	if (accessibleContext != null) {
	oldName = accessibleContext.getAccessibleName();
	}

	if (oldIndex >= 0) {
	oldPage = pages.get(oldIndex);
	}

	if (index >= 0) {
	newPage = pages.get(index);
	}
	}

	model.setSelectedIndex(index);

	if (doAccessibleChanges) {
	changeAccessibleSelection(oldPage, oldName, newPage);
	}
	}

	private void changeAccessibleSelection(Page oldPage, String oldName, Page newPage) {
	if (accessibleContext == null) {
	return;
	}

	if (oldPage != null) {
	oldPage.firePropertyChange(AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.SELECTED, null);
	}

	if (newPage != null) {
	newPage.firePropertyChange(AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.SELECTED);
	}

	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_NAME_PROPERTY,
	oldName,
	accessibleContext.getAccessibleName());
	}

	/**
	* Returns the currently selected component for this tabbedpane.
	* Returns <code>null</code> if there is no currently selected tab.
	*
	* @return the component corresponding to the selected tab
	* @see #setSelectedComponent
	*/
	@Transient
	public Component getSelectedComponent() {
	int index = getSelectedIndex();
	if (index == -1) {
	return null;
	}
	return getComponentAt(index);
	}

	/**
	* Sets the selected component for this tabbedpane. This
	* will automatically set the <code>selectedIndex</code> to the index
	* corresponding to the specified component.
	*
	* @exception IllegalArgumentException if component not found in tabbed
	* pane
	* @see #getSelectedComponent
	* @beaninfo
	* preferred: true
	* description: The tabbedpane's selected component.
	*/
	public void setSelectedComponent(Component c) {
	int index = indexOfComponent(c);
	if (index != -1) {
	setSelectedIndex(index);
	} else {
	throw new IllegalArgumentException("component not found in tabbed pane");
	}
	}

	/**
	* Inserts a new tab for the given component, at the given index,
	* represented by the given title and/or icon, either of which may
	* be {@code null}.
	*
	* @param title the title to be displayed on the tab
	* @param icon the icon to be displayed on the tab
	* @param component the component to be displayed when this tab is clicked.
	* @param tip the tooltip to be displayed for this tab
	* @param index the position to insert this new tab
	* ({@code > 0 and <= getTabCount()})
	*
	* @throws IndexOutOfBoundsException if the index is out of range
	* ({@code < 0 or > getTabCount()})
	*
	* @see #addTab
	* @see #removeTabAt
	*/
	public void insertTab(String title, Icon icon, Component component, String tip, int index) {
	int newIndex = index;

	// If component already exists, remove corresponding
	// tab so that new tab gets added correctly
	// Note: we are allowing component=null because of compatibility,
	// but we really should throw an exception because much of the
	// rest of the JTabbedPane implementation isn't designed to deal
	// with null components for tabs.
	int removeIndex = indexOfComponent(component);
	if (component != null && removeIndex != -1) {
	removeTabAt(removeIndex);
	if (newIndex > removeIndex) {
	newIndex--;
	}
	}

	int selectedIndex = getSelectedIndex();

	pages.add(
	newIndex,
	new Page(this, title != null? title : "", icon, null, component, tip));


	if (component != null) {
	addImpl(component, null, -1);
	component.setVisible(false);
	} else {
	firePropertyChange("indexForNullComponent", -1, index);
	}

	if (pages.size() == 1) {
	setSelectedIndex(0);
	}

	if (selectedIndex >= newIndex) {
	setSelectedIndexImpl(selectedIndex + 1, false);
	}

	if (!haveRegistered && tip != null) {
	ToolTipManager.sharedInstance().registerComponent(this);
	haveRegistered = true;
	}

	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	null, component);
	}
	revalidate();
	repaint();
	}

	/**
	* Adds a <code>component</code> and <code>tip</code>
	* represented by a <code>title</code> and/or <code>icon</code>,
	* either of which can be <code>null</code>.
	* Cover method for <code>insertTab</code>.
	*
	* @param title the title to be displayed in this tab
	* @param icon the icon to be displayed in this tab
	* @param component the component to be displayed when this tab is clicked
	* @param tip the tooltip to be displayed for this tab
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public void addTab(String title, Icon icon, Component component, String tip) {
	insertTab(title, icon, component, tip, pages.size());
	}

	/**
	* Adds a <code>component</code> represented by a <code>title</code>
	* and/or <code>icon</code>, either of which can be <code>null</code>.
	* Cover method for <code>insertTab</code>.
	*
	* @param title the title to be displayed in this tab
	* @param icon the icon to be displayed in this tab
	* @param component the component to be displayed when this tab is clicked
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public void addTab(String title, Icon icon, Component component) {
	insertTab(title, icon, component, null, pages.size());
	}

	/**
	* Adds a <code>component</code> represented by a <code>title</code>
	* and no icon.
	* Cover method for <code>insertTab</code>.
	*
	* @param title the title to be displayed in this tab
	* @param component the component to be displayed when this tab is clicked
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public void addTab(String title, Component component) {
	insertTab(title, null, component, null, pages.size());
	}

	/**
	* Adds a <code>component</code> with a tab title defaulting to
	* the name of the component which is the result of calling
	* <code>component.getName</code>.
	* Cover method for <code>insertTab</code>.
	*
	* @param component the component to be displayed when this tab is clicked
	* @return the component
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public Component add(Component component) {
	if (!(component instanceof UIResource)) {
	addTab(component.getName(), component);
	} else {
	super.add(component);
	}
	return component;
	}

	/**
	* Adds a <code>component</code> with the specified tab title.
	* Cover method for <code>insertTab</code>.
	*
	* @param title the title to be displayed in this tab
	* @param component the component to be displayed when this tab is clicked
	* @return the component
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public Component add(String title, Component component) {
	if (!(component instanceof UIResource)) {
	addTab(title, component);
	} else {
	super.add(title, component);
	}
	return component;
	}

	/**
	* Adds a <code>component</code> at the specified tab index with a tab
	* title defaulting to the name of the component.
	* Cover method for <code>insertTab</code>.
	*
	* @param component the component to be displayed when this tab is clicked
	* @param index the position to insert this new tab
	* @return the component
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public Component add(Component component, int index) {
	if (!(component instanceof UIResource)) {
	// Container.add() interprets -1 as "append", so convert
	// the index appropriately to be handled by the vector
	insertTab(component.getName(), null, component, null,
	index == -1? getTabCount() : index);
	} else {
	super.add(component, index);
	}
	return component;
	}

	/**
	* Adds a <code>component</code> to the tabbed pane.
	* If <code>constraints</code> is a <code>String</code> or an
	* <code>Icon</code>, it will be used for the tab title,
	* otherwise the component's name will be used as the tab title.
	* Cover method for <code>insertTab</code>.
	*
	* @param component the component to be displayed when this tab is clicked
	* @param constraints the object to be displayed in the tab
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public void add(Component component, Object constraints) {
	if (!(component instanceof UIResource)) {
	if (constraints instanceof String) {
	addTab((String)constraints, component);
	} else if (constraints instanceof Icon) {
	addTab(null, (Icon)constraints, component);
	} else {
	add(component);
	}
	} else {
	super.add(component, constraints);
	}
	}

	/**
	* Adds a <code>component</code> at the specified tab index.
	* If <code>constraints</code> is a <code>String</code> or an
	* <code>Icon</code>, it will be used for the tab title,
	* otherwise the component's name will be used as the tab title.
	* Cover method for <code>insertTab</code>.
	*
	* @param component the component to be displayed when this tab is clicked
	* @param constraints the object to be displayed in the tab
	* @param index the position to insert this new tab
	*
	* @see #insertTab
	* @see #removeTabAt
	*/
	public void add(Component component, Object constraints, int index) {
	if (!(component instanceof UIResource)) {

	Icon icon = constraints instanceof Icon? (Icon)constraints : null;
	String title = constraints instanceof String? (String)constraints : null;
	// Container.add() interprets -1 as "append", so convert
	// the index appropriately to be handled by the vector
	insertTab(title, icon, component, null, index == -1? getTabCount() : index);
	} else {
	super.add(component, constraints, index);
	}
	}

	/**
	* Removes the tab at <code>index</code>.
	* After the component associated with <code>index</code> is removed,
	* its visibility is reset to true to ensure it will be visible
	* if added to other containers.
	* @param index the index of the tab to be removed
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #addTab
	* @see #insertTab
	*/
	public void removeTabAt(int index) {
	checkIndex(index);

	Component component = getComponentAt(index);
	boolean shouldChangeFocus = false;
	int selected = getSelectedIndex();
	String oldName = null;

	/* if we're about to remove the visible component */
	if (component == visComp) {
	shouldChangeFocus = (SwingUtilities.findFocusOwner(visComp) != null);
	visComp = null;
	}

	if (accessibleContext != null) {
	/* if we're removing the selected page */
	if (index == selected) {
	/* fire an accessible notification that it's unselected */
	pages.get(index).firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.SELECTED, null);

	oldName = accessibleContext.getAccessibleName();
	}

	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	component, null);
	}

	// Force the tabComponent to be cleaned up.
	setTabComponentAt(index, null);
	pages.remove(index);

	// NOTE 4/15/2002 (joutwate):
	// This fix is implemented using client properties since there is
	// currently no IndexPropertyChangeEvent. Once
	// IndexPropertyChangeEvents have been added this code should be
	// modified to use it.
	putClientProperty("__index_to_remove__", Integer.valueOf(index));

	/* if the selected tab is after the removal */
	if (selected > index) {
	setSelectedIndexImpl(selected - 1, false);

	/* if the selected tab is the last tab */
	} else if (selected >= getTabCount()) {
	setSelectedIndexImpl(selected - 1, false);
	Page newSelected = (selected != 0)
	? pages.get(selected - 1)
	: null;

	changeAccessibleSelection(null, oldName, newSelected);

	/* selected index hasn't changed, but the associated tab has */
	} else if (index == selected) {
	fireStateChanged();
	changeAccessibleSelection(null, oldName, pages.get(index));
	}

	// We can't assume the tab indices correspond to the
	// container's children array indices, so make sure we
	// remove the correct child!
	if (component != null) {
	Component components[] = getComponents();
	for (int i = components.length; --i >= 0; ) {
	if (components[i] == component) {
	super.remove(i);
	component.setVisible(true);
	break;
	}
	}
	}

	if (shouldChangeFocus) {
	SwingUtilities2.tabbedPaneChangeFocusTo(getSelectedComponent());
	}

	revalidate();
	repaint();
	}

	/**
	* Removes the specified <code>Component</code> from the
	* <code>JTabbedPane</code>. The method does nothing
	* if the <code>component</code> is null.
	*
	* @param component the component to remove from the tabbedpane
	* @see #addTab
	* @see #removeTabAt
	*/
	public void remove(Component component) {
	int index = indexOfComponent(component);
	if (index != -1) {
	removeTabAt(index);
	} else {
	// Container#remove(comp) invokes Container#remove(int)
	// so make sure JTabbedPane#remove(int) isn't called here
	Component children[] = getComponents();
	for (int i=0; i < children.length; i++) {
	if (component == children[i]) {
	super.remove(i);
	break;
	}
	}
	}
	}

	/**
	* Removes the tab and component which corresponds to the specified index.
	*
	* @param index the index of the component to remove from the
	* <code>tabbedpane</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	* @see #addTab
	* @see #removeTabAt
	*/
	public void remove(int index) {
	removeTabAt(index);
	}

	/**
	* Removes all the tabs and their corresponding components
	* from the <code>tabbedpane</code>.
	*
	* @see #addTab
	* @see #removeTabAt
	*/
	public void removeAll() {
	setSelectedIndexImpl(-1, true);

	int tabCount = getTabCount();
	// We invoke removeTabAt for each tab, otherwise we may end up
	// removing Components added by the UI.
	while (tabCount-- > 0) {
	removeTabAt(tabCount);
	}
	}

	/**
	* Returns the number of tabs in this <code>tabbedpane</code>.
	*
	* @return an integer specifying the number of tabbed pages
	*/
	public int getTabCount() {
	return pages.size();
	}

	/**
	* Returns the number of tab runs currently used to display
	* the tabs.
	* @return an integer giving the number of rows if the
	* <code>tabPlacement</code>
	* is <code>TOP</code> or <code>BOTTOM</code>
	* and the number of columns if
	* <code>tabPlacement</code>
	* is <code>LEFT</code> or <code>RIGHT</code>,
	* or 0 if there is no UI set on this <code>tabbedpane</code>
	*/
	public int getTabRunCount() {
	if (ui != null) {
	return ((TabbedPaneUI)ui).getTabRunCount(this);
	}
	return 0;
	}


	// Getters for the Pages

	/**
	* Returns the tab title at <code>index</code>.
	*
	* @param index the index of the item being queried
	* @return the title at <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	* @see #setTitleAt
	*/
	public String getTitleAt(int index) {
	return pages.get(index).title;
	}

	/**
	* Returns the tab icon at <code>index</code>.
	*
	* @param index the index of the item being queried
	* @return the icon at <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setIconAt
	*/
	public Icon getIconAt(int index) {
	return pages.get(index).icon;
	}

	/**
	* Returns the tab disabled icon at <code>index</code>.
	* If the tab disabled icon doesn't exist at <code>index</code>
	* this will forward the call to the look and feel to construct
	* an appropriate disabled Icon from the corresponding enabled
	* Icon. Some look and feels might not render the disabled Icon,
	* in which case it won't be created.
	*
	* @param index the index of the item being queried
	* @return the icon at <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setDisabledIconAt
	*/
	public Icon getDisabledIconAt(int index) {
	Page page = pages.get(index);
	if (page.disabledIcon == null) {
	page.disabledIcon = UIManager.getLookAndFeel().getDisabledIcon(this, page.icon);
	}
	return page.disabledIcon;
	}

	/**
	* Returns the tab tooltip text at <code>index</code>.
	*
	* @param index the index of the item being queried
	* @return a string containing the tool tip text at <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setToolTipTextAt
	* @since 1.3
	*/
	public String getToolTipTextAt(int index) {
	return pages.get(index).tip;
	}

	/**
	* Returns the tab background color at <code>index</code>.
	*
	* @param index the index of the item being queried
	* @return the <code>Color</code> of the tab background at
	* <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setBackgroundAt
	*/
	public Color getBackgroundAt(int index) {
	return pages.get(index).getBackground();
	}

	/**
	* Returns the tab foreground color at <code>index</code>.
	*
	* @param index the index of the item being queried
	* @return the <code>Color</code> of the tab foreground at
	* <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setForegroundAt
	*/
	public Color getForegroundAt(int index) {
	return pages.get(index).getForeground();
	}

	/**
	* Returns whether or not the tab at <code>index</code> is
	* currently enabled.
	*
	* @param index the index of the item being queried
	* @return true if the tab at <code>index</code> is enabled;
	* false otherwise
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setEnabledAt
	*/
	public boolean isEnabledAt(int index) {
	return pages.get(index).isEnabled();
	}

	/**
	* Returns the component at <code>index</code>.
	*
	* @param index the index of the item being queried
	* @return the <code>Component</code> at <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setComponentAt
	*/
	public Component getComponentAt(int index) {
	return pages.get(index).component;
	}

	/**
	* Returns the keyboard mnemonic for accessing the specified tab.
	* The mnemonic is the key which when combined with the look and feel's
	* mouseless modifier (usually Alt) will activate the specified
	* tab.
	*
	* @since 1.4
	* @param tabIndex the index of the tab that the mnemonic refers to
	* @return the key code which represents the mnemonic;
	* -1 if a mnemonic is not specified for the tab
	* @exception IndexOutOfBoundsException if index is out of range
	* (<code>tabIndex</code> < 0 \|\|
	* <code>tabIndex</code> >= tab count)
	* @see #setDisplayedMnemonicIndexAt(int,int)
	* @see #setMnemonicAt(int,int)
	*/
	public int getMnemonicAt(int tabIndex) {
	checkIndex(tabIndex);

	Page page = pages.get(tabIndex);
	return page.getMnemonic();
	}

	/**
	* Returns the character, as an index, that the look and feel should
	* provide decoration for as representing the mnemonic character.
	*
	* @since 1.4
	* @param tabIndex the index of the tab that the mnemonic refers to
	* @return index representing mnemonic character if one exists;
	* otherwise returns -1
	* @exception IndexOutOfBoundsException if index is out of range
	* (<code>tabIndex</code> < 0 \|\|
	* <code>tabIndex</code> >= tab count)
	* @see #setDisplayedMnemonicIndexAt(int,int)
	* @see #setMnemonicAt(int,int)
	*/
	public int getDisplayedMnemonicIndexAt(int tabIndex) {
	checkIndex(tabIndex);

	Page page = pages.get(tabIndex);
	return page.getDisplayedMnemonicIndex();
	}

	/**
	* Returns the tab bounds at <code>index</code>. If the tab at
	* this index is not currently visible in the UI, then returns
	* <code>null</code>.
	* If there is no UI set on this <code>tabbedpane</code>,
	* then returns <code>null</code>.
	*
	* @param index the index to be queried
	* @return a <code>Rectangle</code> containing the tab bounds at
	* <code>index</code>, or <code>null</code> if tab at
	* <code>index</code> is not currently visible in the UI,
	* or if there is no UI set on this <code>tabbedpane</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*/
	public Rectangle getBoundsAt(int index) {
	checkIndex(index);
	if (ui != null) {
	return ((TabbedPaneUI)ui).getTabBounds(this, index);
	}
	return null;
	}


	// Setters for the Pages

	/**
	* Sets the title at <code>index</code> to <code>title</code> which
	* can be <code>null</code>.
	* The title is not shown if a tab component for this tab was specified.
	* An internal exception is raised if there is no tab at that index.
	*
	* @param index the tab index where the title should be set
	* @param title the title to be displayed in the tab
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #getTitleAt
	* @see #setTabComponentAt
	* @beaninfo
	* preferred: true
	* attribute: visualUpdate true
	* description: The title at the specified tab index.
	*/
	public void setTitleAt(int index, String title) {
	Page page = pages.get(index);
	String oldTitle =page.title;
	page.title = title;

	if (oldTitle != title) {
	firePropertyChange("indexForTitle", -1, index);
	}
	page.updateDisplayedMnemonicIndex();
	if ((oldTitle != title) && (accessibleContext != null)) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldTitle, title);
	}
	if (title == null \|\| oldTitle == null \|\|
	!title.equals(oldTitle)) {
	revalidate();
	repaint();
	}
	}

	/**
	* Sets the icon at <code>index</code> to <code>icon</code> which can be
	* <code>null</code>. This does not set disabled icon at <code>icon</code>.
	* If the new Icon is different than the current Icon and disabled icon
	* is not explicitly set, the LookAndFeel will be asked to generate a disabled
	* Icon. To explicitly set disabled icon, use <code>setDisableIconAt()</code>.
	* The icon is not shown if a tab component for this tab was specified.
	* An internal exception is raised if there is no tab at that index.
	*
	* @param index the tab index where the icon should be set
	* @param icon the icon to be displayed in the tab
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setDisabledIconAt
	* @see #getIconAt
	* @see #getDisabledIconAt
	* @see #setTabComponentAt
	* @beaninfo
	* preferred: true
	* attribute: visualUpdate true
	* description: The icon at the specified tab index.
	*/
	public void setIconAt(int index, Icon icon) {
	Page page = pages.get(index);
	Icon oldIcon = page.icon;
	if (icon != oldIcon) {
	page.icon = icon;

	/* If the default icon has really changed and we had
	* generated the disabled icon for this page, then
	* clear the disabledIcon field of the page.
	*/
	if (page.disabledIcon instanceof UIResource) {
	page.disabledIcon = null;
	}

	// Fire the accessibility Visible data change
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldIcon, icon);
	}
	revalidate();
	repaint();
	}
	}

	/**
	* Sets the disabled icon at <code>index</code> to <code>icon</code>
	* which can be <code>null</code>.
	* An internal exception is raised if there is no tab at that index.
	*
	* @param index the tab index where the disabled icon should be set
	* @param disabledIcon the icon to be displayed in the tab when disabled
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #getDisabledIconAt
	* @beaninfo
	* preferred: true
	* attribute: visualUpdate true
	* description: The disabled icon at the specified tab index.
	*/
	public void setDisabledIconAt(int index, Icon disabledIcon) {
	Icon oldIcon = pages.get(index).disabledIcon;
	pages.get(index).disabledIcon = disabledIcon;
	if (disabledIcon != oldIcon && !isEnabledAt(index)) {
	revalidate();
	repaint();
	}
	}

	/**
	* Sets the tooltip text at <code>index</code> to <code>toolTipText</code>
	* which can be <code>null</code>.
	* An internal exception is raised if there is no tab at that index.
	*
	* @param index the tab index where the tooltip text should be set
	* @param toolTipText the tooltip text to be displayed for the tab
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #getToolTipTextAt
	* @beaninfo
	* preferred: true
	* description: The tooltip text at the specified tab index.
	* @since 1.3
	*/
	public void setToolTipTextAt(int index, String toolTipText) {
	String oldToolTipText = pages.get(index).tip;
	pages.get(index).tip = toolTipText;

	if ((oldToolTipText != toolTipText) && (accessibleContext != null)) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldToolTipText, toolTipText);
	}
	if (!haveRegistered && toolTipText != null) {
	ToolTipManager.sharedInstance().registerComponent(this);
	haveRegistered = true;
	}
	}

	/**
	* Sets the background color at <code>index</code> to
	* <code>background</code>
	* which can be <code>null</code>, in which case the tab's background color
	* will default to the background color of the <code>tabbedpane</code>.
	* An internal exception is raised if there is no tab at that index.
	* <p>
	* It is up to the look and feel to honor this property, some may
	* choose to ignore it.
	*
	* @param index the tab index where the background should be set
	* @param background the color to be displayed in the tab's background
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #getBackgroundAt
	* @beaninfo
	* preferred: true
	* attribute: visualUpdate true
	* description: The background color at the specified tab index.
	*/
	public void setBackgroundAt(int index, Color background) {
	Color oldBg = pages.get(index).background;
	pages.get(index).setBackground(background);
	if (background == null \|\| oldBg == null \|\|
	!background.equals(oldBg)) {
	Rectangle tabBounds = getBoundsAt(index);
	if (tabBounds != null) {
	repaint(tabBounds);
	}
	}
	}

	/**
	* Sets the foreground color at <code>index</code> to
	* <code>foreground</code> which can be
	* <code>null</code>, in which case the tab's foreground color
	* will default to the foreground color of this <code>tabbedpane</code>.
	* An internal exception is raised if there is no tab at that index.
	* <p>
	* It is up to the look and feel to honor this property, some may
	* choose to ignore it.
	*
	* @param index the tab index where the foreground should be set
	* @param foreground the color to be displayed as the tab's foreground
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #getForegroundAt
	* @beaninfo
	* preferred: true
	* attribute: visualUpdate true
	* description: The foreground color at the specified tab index.
	*/
	public void setForegroundAt(int index, Color foreground) {
	Color oldFg = pages.get(index).foreground;
	pages.get(index).setForeground(foreground);
	if (foreground == null \|\| oldFg == null \|\|
	!foreground.equals(oldFg)) {
	Rectangle tabBounds = getBoundsAt(index);
	if (tabBounds != null) {
	repaint(tabBounds);
	}
	}
	}

	/**
	* Sets whether or not the tab at <code>index</code> is enabled.
	* An internal exception is raised if there is no tab at that index.
	*
	* @param index the tab index which should be enabled/disabled
	* @param enabled whether or not the tab should be enabled
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #isEnabledAt
	*/
	public void setEnabledAt(int index, boolean enabled) {
	boolean oldEnabled = pages.get(index).isEnabled();
	pages.get(index).setEnabled(enabled);
	if (enabled != oldEnabled) {
	revalidate();
	repaint();
	}
	}

	/**
	* Sets the component at <code>index</code> to <code>component</code>.
	* An internal exception is raised if there is no tab at that index.
	*
	* @param index the tab index where this component is being placed
	* @param component the component for the tab
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #getComponentAt
	* @beaninfo
	* attribute: visualUpdate true
	* description: The component at the specified tab index.
	*/
	public void setComponentAt(int index, Component component) {
	Page page = pages.get(index);
	if (component != page.component) {
	boolean shouldChangeFocus = false;

	if (page.component != null) {
	shouldChangeFocus =
	(SwingUtilities.findFocusOwner(page.component) != null);

	// REMIND(aim): this is really silly;
	// why not if (page.component.getParent() == this) remove(component)
	synchronized(getTreeLock()) {
	int count = getComponentCount();
	Component children[] = getComponents();
	for (int i = 0; i < count; i++) {
	if (children[i] == page.component) {
	super.remove(i);
	}
	}
	}
	}

	page.component = component;
	boolean selectedPage = (getSelectedIndex() == index);

	if (selectedPage) {
	this.visComp = component;
	}

	if (component != null) {
	component.setVisible(selectedPage);
	addImpl(component, null, -1);

	if (shouldChangeFocus) {
	SwingUtilities2.tabbedPaneChangeFocusTo(component);
	}
	} else {
	repaint();
	}

	revalidate();
	}
	}

	/**
	* Provides a hint to the look and feel as to which character in the
	* text should be decorated to represent the mnemonic. Not all look and
	* feels may support this. A value of -1 indicates either there is
	* no mnemonic for this tab, or you do not wish the mnemonic to be
	* displayed for this tab.
	* <p>
	* The value of this is updated as the properties relating to the
	* mnemonic change (such as the mnemonic itself, the text...).
	* You should only ever have to call this if
	* you do not wish the default character to be underlined. For example, if
	* the text at tab index 3 was 'Apple Price', with a mnemonic of 'p',
	* and you wanted the 'P'
	* to be decorated, as 'Apple <u>P</u>rice', you would have to invoke
	* <code>setDisplayedMnemonicIndex(3, 6)</code> after invoking
	* <code>setMnemonicAt(3, KeyEvent.VK_P)</code>.
	* <p>Note that it is the programmer's responsibility to ensure
	* that each tab has a unique mnemonic or unpredictable results may
	* occur.
	*
	* @since 1.4
	* @param tabIndex the index of the tab that the mnemonic refers to
	* @param mnemonicIndex index into the <code>String</code> to underline
	* @exception IndexOutOfBoundsException if <code>tabIndex</code> is
	* out of range ({@code tabIndex < 0 \|\| tabIndex >= tab
	* count})
	* @exception IllegalArgumentException will be thrown if
	* <code>mnemonicIndex</code> is >= length of the tab
	* title , or < -1
	* @see #setMnemonicAt(int,int)
	* @see #getDisplayedMnemonicIndexAt(int)
	*
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: the index into the String to draw the keyboard character
	* mnemonic at
	*/
	public void setDisplayedMnemonicIndexAt(int tabIndex, int mnemonicIndex) {
	checkIndex(tabIndex);

	Page page = pages.get(tabIndex);

	page.setDisplayedMnemonicIndex(mnemonicIndex);
	}

	/**
	* Sets the keyboard mnemonic for accessing the specified tab.
	* The mnemonic is the key which when combined with the look and feel's
	* mouseless modifier (usually Alt) will activate the specified
	* tab.
	* <p>
	* A mnemonic must correspond to a single key on the keyboard
	* and should be specified using one of the <code>VK_XXX</code>
	* keycodes defined in <code>java.awt.event.KeyEvent</code>
	* or one of the extended keycodes obtained through
	* <code>java.awt.event.KeyEvent.getExtendedKeyCodeForChar</code>.
	* Mnemonics are case-insensitive, therefore a key event
	* with the corresponding keycode would cause the button to be
	* activated whether or not the Shift modifier was pressed.
	* <p>
	* This will update the displayed mnemonic property for the specified
	* tab.
	*
	* @since 1.4
	* @param tabIndex the index of the tab that the mnemonic refers to
	* @param mnemonic the key code which represents the mnemonic
	* @exception IndexOutOfBoundsException if <code>tabIndex</code> is out
	* of range ({@code tabIndex < 0 \|\| tabIndex >= tab count})
	* @see #getMnemonicAt(int)
	* @see #setDisplayedMnemonicIndexAt(int,int)
	*
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The keyboard mnenmonic, as a KeyEvent VK constant,
	* for the specified tab
	*/
	public void setMnemonicAt(int tabIndex, int mnemonic) {
	checkIndex(tabIndex);

	Page page = pages.get(tabIndex);
	page.setMnemonic(mnemonic);

	firePropertyChange("mnemonicAt", null, null);
	}

	// end of Page setters

	/**
	* Returns the first tab index with a given <code>title</code>, or
	* -1 if no tab has this title.
	*
	* @param title the title for the tab
	* @return the first tab index which matches <code>title</code>, or
	* -1 if no tab has this title
	*/
	public int indexOfTab(String title) {
	for(int i = 0; i < getTabCount(); i++) {
	if (getTitleAt(i).equals(title == null? "" : title)) {
	return i;
	}
	}
	return -1;
	}

	/**
	* Returns the first tab index with a given <code>icon</code>,
	* or -1 if no tab has this icon.
	*
	* @param icon the icon for the tab
	* @return the first tab index which matches <code>icon</code>,
	* or -1 if no tab has this icon
	*/
	public int indexOfTab(Icon icon) {
	for(int i = 0; i < getTabCount(); i++) {
	Icon tabIcon = getIconAt(i);
	if ((tabIcon != null && tabIcon.equals(icon)) \|\|
	(tabIcon == null && tabIcon == icon)) {
	return i;
	}
	}
	return -1;
	}

	/**
	* Returns the index of the tab for the specified component.
	* Returns -1 if there is no tab for this component.
	*
	* @param component the component for the tab
	* @return the first tab which matches this component, or -1
	* if there is no tab for this component
	*/
	public int indexOfComponent(Component component) {
	for(int i = 0; i < getTabCount(); i++) {
	Component c = getComponentAt(i);
	if ((c != null && c.equals(component)) \|\|
	(c == null && c == component)) {
	return i;
	}
	}
	return -1;
	}

	/**
	* Returns the tab index corresponding to the tab whose bounds
	* intersect the specified location. Returns -1 if no tab
	* intersects the location.
	*
	* @param x the x location relative to this tabbedpane
	* @param y the y location relative to this tabbedpane
	* @return the tab index which intersects the location, or
	* -1 if no tab intersects the location
	* @since 1.4
	*/
	public int indexAtLocation(int x, int y) {
	if (ui != null) {
	return ((TabbedPaneUI)ui).tabForCoordinate(this, x, y);
	}
	return -1;
	}


	/**
	* Returns the tooltip text for the component determined by the
	* mouse event location.
	*
	* @param event the <code>MouseEvent</code> that tells where the
	* cursor is lingering
	* @return the <code>String</code> containing the tooltip text
	*/
	public String getToolTipText(MouseEvent event) {
	if (ui != null) {
	int index = ((TabbedPaneUI)ui).tabForCoordinate(this, event.getX(), event.getY());

	if (index != -1) {
	return pages.get(index).tip;
	}
	}
	return super.getToolTipText(event);
	}

	private void checkIndex(int index) {
	if (index < 0 \|\| index >= pages.size()) {
	throw new IndexOutOfBoundsException("Index: "+index+", Tab count: "+pages.size());
	}
	}


	/**
	* See <code>readObject</code> and <code>writeObject</code> in
	* <code>JComponent</code> for more
	* information about serialization in Swing.
	*/
	private void writeObject(ObjectOutputStream s) throws IOException {
	s.defaultWriteObject();
	if (getUIClassID().equals(uiClassID)) {
	byte count = JComponent.getWriteObjCounter(this);
	JComponent.setWriteObjCounter(this, --count);
	if (count == 0 && ui != null) {
	ui.installUI(this);
	}
	}
	}

	/* Called from the <code>JComponent</code>'s
	* <code>EnableSerializationFocusListener</code> to
	* do any Swing-specific pre-serialization configuration.
	*/
	void compWriteObjectNotify() {
	super.compWriteObjectNotify();
	// If ToolTipText != null, then the tooltip has already been
	// unregistered by JComponent.compWriteObjectNotify()
	if (getToolTipText() == null && haveRegistered) {
	ToolTipManager.sharedInstance().unregisterComponent(this);
	}
	}

	/**
	* See <code>readObject</code> and <code>writeObject</code> in
	* <code>JComponent</code> for more
	* information about serialization in Swing.
	*/
	private void readObject(ObjectInputStream s)
	throws IOException, ClassNotFoundException
	{
	s.defaultReadObject();
	if ((ui != null) && (getUIClassID().equals(uiClassID))) {
	ui.installUI(this);
	}
	// If ToolTipText != null, then the tooltip has already been
	// registered by JComponent.readObject()
	if (getToolTipText() == null && haveRegistered) {
	ToolTipManager.sharedInstance().registerComponent(this);
	}
	}


	/**
	* Returns a string representation of this <code>JTabbedPane</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 JTabbedPane.
	*/
	protected String paramString() {
	String tabPlacementString;
	if (tabPlacement == TOP) {
	tabPlacementString = "TOP";
	} else if (tabPlacement == BOTTOM) {
	tabPlacementString = "BOTTOM";
	} else if (tabPlacement == LEFT) {
	tabPlacementString = "LEFT";
	} else if (tabPlacement == RIGHT) {
	tabPlacementString = "RIGHT";
	} else tabPlacementString = "";
	String haveRegisteredString = (haveRegistered ?
	"true" : "false");

	return super.paramString() +
	",haveRegistered=" + haveRegisteredString +
	",tabPlacement=" + tabPlacementString;
	}

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

	/**
	* Gets the AccessibleContext associated with this JTabbedPane.
	* For tabbed panes, the AccessibleContext takes the form of an
	* AccessibleJTabbedPane.
	* A new AccessibleJTabbedPane instance is created if necessary.
	*
	* @return an AccessibleJTabbedPane that serves as the
	* AccessibleContext of this JTabbedPane
	*/
	public AccessibleContext getAccessibleContext() {
	if (accessibleContext == null) {
	accessibleContext = new AccessibleJTabbedPane();

	// initialize AccessibleContext for the existing pages
	int count = getTabCount();
	for (int i = 0; i < count; i++) {
	pages.get(i).initAccessibleContext();
	}
	}
	return accessibleContext;
	}

	/**
	* This class implements accessibility support for the
	* <code>JTabbedPane</code> class. It provides an implementation of the
	* Java Accessibility API appropriate to tabbed pane user-interface
	* elements.
	* <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}.
	*/
	protected class AccessibleJTabbedPane extends AccessibleJComponent
	implements AccessibleSelection, ChangeListener {

	/**
	* Returns the accessible name of this object, or {@code null} if
	* there is no accessible name.
	*
	* @return the accessible name of this object, nor {@code null}.
	* @since 1.6
	*/
	public String getAccessibleName() {
	if (accessibleName != null) {
	return accessibleName;
	}

	String cp = (String)getClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY);

	if (cp != null) {
	return cp;
	}

	int index = getSelectedIndex();

	if (index >= 0) {
	return pages.get(index).getAccessibleName();
	}

	return super.getAccessibleName();
	}

	/**
	* Constructs an AccessibleJTabbedPane
	*/
	public AccessibleJTabbedPane() {
	super();
	JTabbedPane.this.model.addChangeListener(this);
	}

	public void stateChanged(ChangeEvent e) {
	Object o = e.getSource();
	firePropertyChange(AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY,
	null, o);
	}

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

	/**
	* Returns the number of accessible children in the object.
	*
	* @return the number of accessible children in the object.
	*/
	public int getAccessibleChildrenCount() {
	return getTabCount();
	}

	/**
	* Return the specified Accessible child of the object.
	*
	* @param i zero-based index of child
	* @return the Accessible child of the object
	* @exception IllegalArgumentException if index is out of bounds
	*/
	public Accessible getAccessibleChild(int i) {
	if (i < 0 \|\| i >= getTabCount()) {
	return null;
	}
	return pages.get(i);
	}

	/**
	* Gets the <code>AccessibleSelection</code> associated with
	* this object. In the implementation of the Java
	* Accessibility API for this class,
	* returns this object, which is responsible for implementing the
	* <code>AccessibleSelection</code> interface on behalf of itself.
	*
	* @return this object
	*/
	public AccessibleSelection getAccessibleSelection() {
	return this;
	}

	/**
	* Returns the <code>Accessible</code> child contained at
	* the local coordinate <code>Point</code>, if one exists.
	* Otherwise returns the currently selected tab.
	*
	* @return the <code>Accessible</code> at the specified
	* location, if it exists
	*/
	public Accessible getAccessibleAt(Point p) {
	int tab = ((TabbedPaneUI) ui).tabForCoordinate(JTabbedPane.this,
	p.x, p.y);
	if (tab == -1) {
	tab = getSelectedIndex();
	}
	return getAccessibleChild(tab);
	}

	public int getAccessibleSelectionCount() {
	return 1;
	}

	public Accessible getAccessibleSelection(int i) {
	int index = getSelectedIndex();
	if (index == -1) {
	return null;
	}
	return pages.get(index);
	}

	public boolean isAccessibleChildSelected(int i) {
	return (i == getSelectedIndex());
	}

	public void addAccessibleSelection(int i) {
	setSelectedIndex(i);
	}

	public void removeAccessibleSelection(int i) {
	// can't do
	}

	public void clearAccessibleSelection() {
	// can't do
	}

	public void selectAllAccessibleSelection() {
	// can't do
	}
	}

	private class Page extends AccessibleContext
	implements Serializable, Accessible, AccessibleComponent {
	String title;
	Color background;
	Color foreground;
	Icon icon;
	Icon disabledIcon;
	JTabbedPane parent;
	Component component;
	String tip;
	boolean enabled = true;
	boolean needsUIUpdate;
	int mnemonic = -1;
	int mnemonicIndex = -1;
	Component tabComponent;

	Page(JTabbedPane parent,
	String title, Icon icon, Icon disabledIcon, Component component, String tip) {
	this.title = title;
	this.icon = icon;
	this.disabledIcon = disabledIcon;
	this.parent = parent;
	this.setAccessibleParent(parent);
	this.component = component;
	this.tip = tip;

	initAccessibleContext();
	}

	/*
	* initializes the AccessibleContext for the page
	*/
	void initAccessibleContext() {
	if (JTabbedPane.this.accessibleContext != null &&
	component instanceof Accessible) {
	/*
	* Do initialization if the AccessibleJTabbedPane
	* has been instantiated. We do not want to load
	* Accessibility classes unnecessarily.
	*/
	AccessibleContext ac;
	ac = component.getAccessibleContext();
	if (ac != null) {
	ac.setAccessibleParent(this);
	}
	}
	}

	void setMnemonic(int mnemonic) {
	this.mnemonic = mnemonic;
	updateDisplayedMnemonicIndex();
	}

	int getMnemonic() {
	return mnemonic;
	}

	/*
	* Sets the page displayed mnemonic index
	*/
	void setDisplayedMnemonicIndex(int mnemonicIndex) {
	if (this.mnemonicIndex != mnemonicIndex) {
	if (mnemonicIndex != -1 && (title == null \|\|
	mnemonicIndex < 0 \|\|
	mnemonicIndex >= title.length())) {
	throw new IllegalArgumentException(
	"Invalid mnemonic index: " + mnemonicIndex);
	}
	this.mnemonicIndex = mnemonicIndex;
	JTabbedPane.this.firePropertyChange("displayedMnemonicIndexAt",
	null, null);
	}
	}

	/*
	* Returns the page displayed mnemonic index
	*/
	int getDisplayedMnemonicIndex() {
	return this.mnemonicIndex;
	}

	void updateDisplayedMnemonicIndex() {
	setDisplayedMnemonicIndex(
	SwingUtilities.findDisplayedMnemonicIndex(title, mnemonic));
	}

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

	public AccessibleContext getAccessibleContext() {
	return this;
	}


	// AccessibleContext methods

	public String getAccessibleName() {
	if (accessibleName != null) {
	return accessibleName;
	} else if (title != null) {
	return title;
	}
	return null;
	}

	public String getAccessibleDescription() {
	if (accessibleDescription != null) {
	return accessibleDescription;
	} else if (tip != null) {
	return tip;
	}
	return null;
	}

	public AccessibleRole getAccessibleRole() {
	return AccessibleRole.PAGE_TAB;
	}

	public AccessibleStateSet getAccessibleStateSet() {
	AccessibleStateSet states;
	states = parent.getAccessibleContext().getAccessibleStateSet();
	states.add(AccessibleState.SELECTABLE);
	int i = parent.indexOfTab(title);
	if (i == parent.getSelectedIndex()) {
	states.add(AccessibleState.SELECTED);
	}
	return states;
	}

	public int getAccessibleIndexInParent() {
	return parent.indexOfTab(title);
	}

	public int getAccessibleChildrenCount() {
	if (component instanceof Accessible) {
	return 1;
	} else {
	return 0;
	}
	}

	public Accessible getAccessibleChild(int i) {
	if (component instanceof Accessible) {
	return (Accessible) component;
	} else {
	return null;
	}
	}

	public Locale getLocale() {
	return parent.getLocale();
	}

	public AccessibleComponent getAccessibleComponent() {
	return this;
	}


	// AccessibleComponent methods

	public Color getBackground() {
	return background != null? background : parent.getBackground();
	}

	public void setBackground(Color c) {
	background = c;
	}

	public Color getForeground() {
	return foreground != null? foreground : parent.getForeground();
	}

	public void setForeground(Color c) {
	foreground = c;
	}

	public Cursor getCursor() {
	return parent.getCursor();
	}

	public void setCursor(Cursor c) {
	parent.setCursor(c);
	}

	public Font getFont() {
	return parent.getFont();
	}

	public void setFont(Font f) {
	parent.setFont(f);
	}

	public FontMetrics getFontMetrics(Font f) {
	return parent.getFontMetrics(f);
	}

	public boolean isEnabled() {
	return enabled;
	}

	public void setEnabled(boolean b) {
	enabled = b;
	}

	public boolean isVisible() {
	return parent.isVisible();
	}

	public void setVisible(boolean b) {
	parent.setVisible(b);
	}

	public boolean isShowing() {
	return parent.isShowing();
	}

	public boolean contains(Point p) {
	Rectangle r = getBounds();
	return r.contains(p);
	}

	public Point getLocationOnScreen() {
	Point parentLocation = parent.getLocationOnScreen();
	Point componentLocation = getLocation();
	componentLocation.translate(parentLocation.x, parentLocation.y);
	return componentLocation;
	}

	public Point getLocation() {
	Rectangle r = getBounds();
	return new Point(r.x, r.y);
	}

	public void setLocation(Point p) {
	// do nothing
	}

	public Rectangle getBounds() {
	return parent.getUI().getTabBounds(parent,
	parent.indexOfTab(title));
	}

	public void setBounds(Rectangle r) {
	// do nothing
	}

	public Dimension getSize() {
	Rectangle r = getBounds();
	return new Dimension(r.width, r.height);
	}

	public void setSize(Dimension d) {
	// do nothing
	}

	public Accessible getAccessibleAt(Point p) {
	if (component instanceof Accessible) {
	return (Accessible) component;
	} else {
	return null;
	}
	}

	public boolean isFocusTraversable() {
	return false;
	}

	public void requestFocus() {
	// do nothing
	}

	public void addFocusListener(FocusListener l) {
	// do nothing
	}

	public void removeFocusListener(FocusListener l) {
	// do nothing
	}

	// TIGER - 4732339
	/**
	* Returns an AccessibleIcon
	*
	* @return the enabled icon if one exists and the page
	* is enabled. Otherwise, returns the disabled icon if
	* one exists and the page is disabled. Otherwise, null
	* is returned.
	*/
	public AccessibleIcon [] getAccessibleIcon() {
	AccessibleIcon accessibleIcon = null;
	if (enabled && icon instanceof ImageIcon) {
	AccessibleContext ac =
	((ImageIcon)icon).getAccessibleContext();
	accessibleIcon = (AccessibleIcon)ac;
	} else if (!enabled && disabledIcon instanceof ImageIcon) {
	AccessibleContext ac =
	((ImageIcon)disabledIcon).getAccessibleContext();
	accessibleIcon = (AccessibleIcon)ac;
	}
	if (accessibleIcon != null) {
	AccessibleIcon [] returnIcons = new AccessibleIcon[1];
	returnIcons[0] = accessibleIcon;
	return returnIcons;
	} else {
	return null;
	}
	}
	}

	/**
	* Sets the component that is responsible for rendering the
	* title for the specified tab. A null value means
	* <code>JTabbedPane</code> will render the title and/or icon for
	* the specified tab. A non-null value means the component will
	* render the title and <code>JTabbedPane</code> will not render
	* the title and/or icon.
	* <p>
	* Note: The component must not be one that the developer has
	* already added to the tabbed pane.
	*
	* @param index the tab index where the component should be set
	* @param component the component to render the title for the
	* specified tab
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	* @exception IllegalArgumentException if component has already been
	* added to this <code>JTabbedPane</code>
	*
	* @see #getTabComponentAt
	* @beaninfo
	* preferred: true
	* attribute: visualUpdate true
	* description: The tab component at the specified tab index.
	* @since 1.6
	*/
	public void setTabComponentAt(int index, Component component) {
	if (component != null && indexOfComponent(component) != -1) {
	throw new IllegalArgumentException("Component is already added to this JTabbedPane");
	}
	Component oldValue = getTabComponentAt(index);
	if (component != oldValue) {
	int tabComponentIndex = indexOfTabComponent(component);
	if (tabComponentIndex != -1) {
	setTabComponentAt(tabComponentIndex, null);
	}
	pages.get(index).tabComponent = component;
	firePropertyChange("indexForTabComponent", -1, index);
	}
	}

	/**
	* Returns the tab component at <code>index</code>.
	*
	* @param index the index of the item being queried
	* @return the tab component at <code>index</code>
	* @exception IndexOutOfBoundsException if index is out of range
	* {@code (index < 0 \|\| index >= tab count)}
	*
	* @see #setTabComponentAt
	* @since 1.6
	*/
	public Component getTabComponentAt(int index) {
	return pages.get(index).tabComponent;
	}

	/**
	* Returns the index of the tab for the specified tab component.
	* Returns -1 if there is no tab for this tab component.
	*
	* @param tabComponent the tab component for the tab
	* @return the first tab which matches this tab component, or -1
	* if there is no tab for this tab component
	* @see #setTabComponentAt
	* @see #getTabComponentAt
	* @since 1.6
	*/
	public int indexOfTabComponent(Component tabComponent) {
	for(int i = 0; i < getTabCount(); i++) {
	Component c = getTabComponentAt(i);
	if (c == tabComponent) {
	return i;
	}
	}
	return -1;
	}
	}

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