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	/*
	* Copyright (c) 1997, 2017, 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.util.Vector;
	import java.util.Locale;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.List;

	import java.beans.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;
	import java.beans.Transient;

	import javax.swing.event.*;
	import javax.accessibility.*;
	import javax.swing.plaf.*;
	import javax.swing.text.Position;

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

	import sun.awt.AWTAccessor;
	import sun.awt.AWTAccessor.MouseEventAccessor;
	import sun.swing.SwingUtilities2;
	import sun.swing.SwingUtilities2.Section;
	import static sun.swing.SwingUtilities2.Section.*;


	/**
	* A component that displays a list of objects and allows the user to select
	* one or more items. A separate model, {@code ListModel}, maintains the
	* contents of the list.
	* <p>
	* It's easy to display an array or Vector of objects, using the {@code JList}
	* constructor that automatically builds a read-only {@code ListModel} instance
	* for you:
	* <pre>
	* {@code
	* // Create a JList that displays strings from an array
	*
	* String[] data = {"one", "two", "three", "four"};
	* JList<String> myList = new JList<String>(data);
	*
	* // Create a JList that displays the superclasses of JList.class, by
	* // creating it with a Vector populated with this data
	*
	* Vector<Class<?>> superClasses = new Vector<Class<?>>();
	* Class<JList> rootClass = javax.swing.JList.class;
	* for(Class<?> cls = rootClass; cls != null; cls = cls.getSuperclass()) {
	* superClasses.addElement(cls);
	* }
	* JList<Class<?>> myList = new JList<Class<?>>(superClasses);
	*
	* // The automatically created model is stored in JList's "model"
	* // property, which you can retrieve
	*
	* ListModel<Class<?>> model = myList.getModel();
	* for(int i = 0; i < model.getSize(); i++) {
	* System.out.println(model.getElementAt(i));
	* }
	* }
	* </pre>
	* <p>
	* A {@code ListModel} can be supplied directly to a {@code JList} by way of a
	* constructor or the {@code setModel} method. The contents need not be static -
	* the number of items, and the values of items can change over time. A correct
	* {@code ListModel} implementation notifies the set of
	* {@code javax.swing.event.ListDataListener}s that have been added to it, each
	* time a change occurs. These changes are characterized by a
	* {@code javax.swing.event.ListDataEvent}, which identifies the range of list
	* indices that have been modified, added, or removed. {@code JList}'s
	* {@code ListUI} is responsible for keeping the visual representation up to
	* date with changes, by listening to the model.
	* <p>
	* Simple, dynamic-content, {@code JList} applications can use the
	* {@code DefaultListModel} class to maintain list elements. This class
	* implements the {@code ListModel} interface and also provides a
	* <code>java.util.Vector</code>-like API. Applications that need a more
	* custom <code>ListModel</code> implementation may instead wish to subclass
	* {@code AbstractListModel}, which provides basic support for managing and
	* notifying listeners. For example, a read-only implementation of
	* {@code AbstractListModel}:
	* <pre>
	* {@code
	* // This list model has about 2^16 elements. Enjoy scrolling.
	*
	* ListModel<String> bigData = new AbstractListModel<String>() {
	* public int getSize() { return Short.MAX_VALUE; }
	* public String getElementAt(int index) { return "Index " + index; }
	* };
	* }
	* </pre>
	* <p>
	* The selection state of a {@code JList} is managed by another separate
	* model, an instance of {@code ListSelectionModel}. {@code JList} is
	* initialized with a selection model on construction, and also contains
	* methods to query or set this selection model. Additionally, {@code JList}
	* provides convenient methods for easily managing the selection. These methods,
	* such as {@code setSelectedIndex} and {@code getSelectedValue}, are cover
	* methods that take care of the details of interacting with the selection
	* model. By default, {@code JList}'s selection model is configured to allow any
	* combination of items to be selected at a time; selection mode
	* {@code MULTIPLE_INTERVAL_SELECTION}. The selection mode can be changed
	* on the selection model directly, or via {@code JList}'s cover method.
	* Responsibility for updating the selection model in response to user gestures
	* lies with the list's {@code ListUI}.
	* <p>
	* A correct {@code ListSelectionModel} implementation notifies the set of
	* {@code javax.swing.event.ListSelectionListener}s that have been added to it
	* each time a change to the selection occurs. These changes are characterized
	* by a {@code javax.swing.event.ListSelectionEvent}, which identifies the range
	* of the selection change.
	* <p>
	* The preferred way to listen for changes in list selection is to add
	* {@code ListSelectionListener}s directly to the {@code JList}. {@code JList}
	* then takes care of listening to the the selection model and notifying your
	* listeners of change.
	* <p>
	* Responsibility for listening to selection changes in order to keep the list's
	* visual representation up to date lies with the list's {@code ListUI}.
	* <p>
	* <a name="renderer"></a>
	* Painting of cells in a {@code JList} is handled by a delegate called a
	* cell renderer, installed on the list as the {@code cellRenderer} property.
	* The renderer provides a {@code java.awt.Component} that is used
	* like a "rubber stamp" to paint the cells. Each time a cell needs to be
	* painted, the list's {@code ListUI} asks the cell renderer for the component,
	* moves it into place, and has it paint the contents of the cell by way of its
	* {@code paint} method. A default cell renderer, which uses a {@code JLabel}
	* component to render, is installed by the lists's {@code ListUI}. You can
	* substitute your own renderer using code like this:
	* <pre>
	* {@code
	* // Display an icon and a string for each object in the list.
	*
	* class MyCellRenderer extends JLabel implements ListCellRenderer<Object> {
	* final static ImageIcon longIcon = new ImageIcon("long.gif");
	* final static ImageIcon shortIcon = new ImageIcon("short.gif");
	*
	* // This is the only method defined by ListCellRenderer.
	* // We just reconfigure the JLabel each time we're called.
	*
	* public Component getListCellRendererComponent(
	* JList<?> list, // the list
	* Object value, // value to display
	* int index, // cell index
	* boolean isSelected, // is the cell selected
	* boolean cellHasFocus) // does the cell have focus
	* {
	* String s = value.toString();
	* setText(s);
	* setIcon((s.length() > 10) ? longIcon : shortIcon);
	* if (isSelected) {
	* setBackground(list.getSelectionBackground());
	* setForeground(list.getSelectionForeground());
	* } else {
	* setBackground(list.getBackground());
	* setForeground(list.getForeground());
	* }
	* setEnabled(list.isEnabled());
	* setFont(list.getFont());
	* setOpaque(true);
	* return this;
	* }
	* }
	*
	* myList.setCellRenderer(new MyCellRenderer());
	* }
	* </pre>
	* <p>
	* Another job for the cell renderer is in helping to determine sizing
	* information for the list. By default, the list's {@code ListUI} determines
	* the size of cells by asking the cell renderer for its preferred
	* size for each list item. This can be expensive for large lists of items.
	* To avoid these calculations, you can set a {@code fixedCellWidth} and
	* {@code fixedCellHeight} on the list, or have these values calculated
	* automatically based on a single prototype value:
	* <a name="prototype_example"></a>
	* <pre>
	* {@code
	* JList<String> bigDataList = new JList<String>(bigData);
	*
	* // We don't want the JList implementation to compute the width
	* // or height of all of the list cells, so we give it a string
	* // that's as big as we'll need for any cell. It uses this to
	* // compute values for the fixedCellWidth and fixedCellHeight
	* // properties.
	*
	* bigDataList.setPrototypeCellValue("Index 1234567890");
	* }
	* </pre>
	* <p>
	* {@code JList} doesn't implement scrolling directly. To create a list that
	* scrolls, make it the viewport view of a {@code JScrollPane}. For example:
	* <pre>
	* JScrollPane scrollPane = new JScrollPane(myList);
	*
	* // Or in two steps:
	* JScrollPane scrollPane = new JScrollPane();
	* scrollPane.getViewport().setView(myList);
	* </pre>
	* <p>
	* {@code JList} doesn't provide any special handling of double or triple
	* (or N) mouse clicks, but it's easy to add a {@code MouseListener} if you
	* wish to take action on these events. Use the {@code locationToIndex}
	* method to determine what cell was clicked. For example:
	* <pre>
	* MouseListener mouseListener = new MouseAdapter() {
	* public void mouseClicked(MouseEvent e) {
	* if (e.getClickCount() == 2) {
	* int index = list.locationToIndex(e.getPoint());
	* System.out.println("Double clicked on Item " + index);
	* }
	* }
	* };
	* list.addMouseListener(mouseListener);
	* </pre>
	* <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}.
	* <p>
	* See <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/list.html">How to Use Lists</a>
	* in <a href="https://docs.oracle.com/javase/tutorial/"><em>The Java Tutorial</em></a>
	* for further documentation.
	* <p>
	* @see ListModel
	* @see AbstractListModel
	* @see DefaultListModel
	* @see ListSelectionModel
	* @see DefaultListSelectionModel
	* @see ListCellRenderer
	* @see DefaultListCellRenderer
	*
	* @param <E> the type of the elements of this list
	*
	* @beaninfo
	* attribute: isContainer false
	* description: A component which allows for the selection of one or more objects from a list.
	*
	* @author Hans Muller
	*/
	public class JList<E> extends JComponent implements Scrollable, Accessible
	{
	/**
	* @see #getUIClassID
	* @see #readObject
	*/
	private static final String uiClassID = "ListUI";

	/**
	* Indicates a vertical layout of cells, in a single column;
	* the default layout.
	* @see #setLayoutOrientation
	* @since 1.4
	*/
	public static final int VERTICAL = 0;

	/**
	* Indicates a "newspaper style" layout with cells flowing vertically
	* then horizontally.
	* @see #setLayoutOrientation
	* @since 1.4
	*/
	public static final int VERTICAL_WRAP = 1;

	/**
	* Indicates a "newspaper style" layout with cells flowing horizontally
	* then vertically.
	* @see #setLayoutOrientation
	* @since 1.4
	*/
	public static final int HORIZONTAL_WRAP = 2;

	private int fixedCellWidth = -1;
	private int fixedCellHeight = -1;
	private int horizontalScrollIncrement = -1;
	private E prototypeCellValue;
	private int visibleRowCount = 8;
	private Color selectionForeground;
	private Color selectionBackground;
	private boolean dragEnabled;

	private ListSelectionModel selectionModel;
	private ListModel<E> dataModel;
	private ListCellRenderer<? super E> cellRenderer;
	private ListSelectionListener selectionListener;

	/**
	* How to lay out the cells; defaults to <code>VERTICAL</code>.
	*/
	private int layoutOrientation;

	/**
	* The drop mode for this component.
	*/
	private DropMode dropMode = DropMode.USE_SELECTION;

	/**
	* The drop location.
	*/
	private transient DropLocation dropLocation;

	/**
	* A subclass of <code>TransferHandler.DropLocation</code> representing
	* a drop location for a <code>JList</code>.
	*
	* @see #getDropLocation
	* @since 1.6
	*/
	public static final class DropLocation extends TransferHandler.DropLocation {
	private final int index;
	private final boolean isInsert;

	private DropLocation(Point p, int index, boolean isInsert) {
	super(p);
	this.index = index;
	this.isInsert = isInsert;
	}

	/**
	* Returns the index where dropped data should be placed in the
	* list. Interpretation of the value depends on the drop mode set on
	* the associated component. If the drop mode is either
	* <code>DropMode.USE_SELECTION</code> or <code>DropMode.ON</code>,
	* the return value is an index of a row in the list. If the drop mode is
	* <code>DropMode.INSERT</code>, the return value refers to the index
	* where the data should be inserted. If the drop mode is
	* <code>DropMode.ON_OR_INSERT</code>, the value of
	* <code>isInsert()</code> indicates whether the index is an index
	* of a row, or an insert index.
	* <p>
	* <code>-1</code> indicates that the drop occurred over empty space,
	* and no index could be calculated.
	*
	* @return the drop index
	*/
	public int getIndex() {
	return index;
	}

	/**
	* Returns whether or not this location represents an insert
	* location.
	*
	* @return whether or not this is an insert location
	*/
	public boolean isInsert() {
	return isInsert;
	}

	/**
	* Returns a string representation of this drop location.
	* This method is intended to be used for debugging purposes,
	* and the content and format of the returned string may vary
	* between implementations.
	*
	* @return a string representation of this drop location
	*/
	public String toString() {
	return getClass().getName()
	+ "[dropPoint=" + getDropPoint() + ","
	+ "index=" + index + ","
	+ "insert=" + isInsert + "]";
	}
	}

	/**
	* Constructs a {@code JList} that displays elements from the specified,
	* {@code non-null}, model. All {@code JList} constructors delegate to
	* this one.
	* <p>
	* This constructor registers the list with the {@code ToolTipManager},
	* allowing for tooltips to be provided by the cell renderers.
	*
	* @param dataModel the model for the list
	* @exception IllegalArgumentException if the model is {@code null}
	*/
	public JList(ListModel<E> dataModel)
	{
	if (dataModel == null) {
	throw new IllegalArgumentException("dataModel must be non null");
	}

	// Register with the ToolTipManager so that tooltips from the
	// renderer show through.
	ToolTipManager toolTipManager = ToolTipManager.sharedInstance();
	toolTipManager.registerComponent(this);

	layoutOrientation = VERTICAL;

	this.dataModel = dataModel;
	selectionModel = createSelectionModel();
	setAutoscrolls(true);
	setOpaque(true);
	updateUI();
	}


	/**
	* Constructs a <code>JList</code> that displays the elements in
	* the specified array. This constructor creates a read-only model
	* for the given array, and then delegates to the constructor that
	* takes a {@code ListModel}.
	* <p>
	* Attempts to pass a {@code null} value to this method results in
	* undefined behavior and, most likely, exceptions. The created model
	* references the given array directly. Attempts to modify the array
	* after constructing the list results in undefined behavior.
	*
	* @param listData the array of Objects to be loaded into the data model,
	* {@code non-null}
	*/
	public JList(final E[] listData)
	{
	this (
	new AbstractListModel<E>() {
	public int getSize() { return listData.length; }
	public E getElementAt(int i) { return listData[i]; }
	}
	);
	}


	/**
	* Constructs a <code>JList</code> that displays the elements in
	* the specified <code>Vector</code>. This constructor creates a read-only
	* model for the given {@code Vector}, and then delegates to the constructor
	* that takes a {@code ListModel}.
	* <p>
	* Attempts to pass a {@code null} value to this method results in
	* undefined behavior and, most likely, exceptions. The created model
	* references the given {@code Vector} directly. Attempts to modify the
	* {@code Vector} after constructing the list results in undefined behavior.
	*
	* @param listData the <code>Vector</code> to be loaded into the
	* data model, {@code non-null}
	*/
	public JList(final Vector<? extends E> listData) {
	this (
	new AbstractListModel<E>() {
	public int getSize() { return listData.size(); }
	public E getElementAt(int i) { return listData.elementAt(i); }
	}
	);
	}


	/**
	* Constructs a <code>JList</code> with an empty, read-only, model.
	*/
	public JList() {
	this (
	new AbstractListModel<E>() {
	public int getSize() { return 0; }
	public E getElementAt(int i) { throw new IndexOutOfBoundsException("No Data Model"); }
	}
	);
	}


	/**
	* Returns the {@code ListUI}, the look and feel object that
	* renders this component.
	*
	* @return the <code>ListUI</code> object that renders this component
	*/
	public ListUI getUI() {
	return (ListUI)ui;
	}


	/**
	* Sets the {@code ListUI}, the look and feel object that
	* renders this component.
	*
	* @param ui the <code>ListUI</code> object
	* @see UIDefaults#getUI
	* @beaninfo
	* bound: true
	* hidden: true
	* attribute: visualUpdate true
	* description: The UI object that implements the Component's LookAndFeel.
	*/
	public void setUI(ListUI ui) {
	super.setUI(ui);
	}


	/**
	* Resets the {@code ListUI} property by setting it to the value provided
	* by the current look and feel. If the current cell renderer was installed
	* by the developer (rather than the look and feel itself), this also causes
	* the cell renderer and its children to be updated, by calling
	* {@code SwingUtilities.updateComponentTreeUI} on it.
	*
	* @see UIManager#getUI
	* @see SwingUtilities#updateComponentTreeUI
	*/
	public void updateUI() {
	setUI((ListUI)UIManager.getUI(this));

	ListCellRenderer<? super E> renderer = getCellRenderer();
	if (renderer instanceof Component) {
	SwingUtilities.updateComponentTreeUI((Component)renderer);
	}
	}


	/**
	* Returns {@code "ListUI"}, the <code>UIDefaults</code> key used to look
	* up the name of the {@code javax.swing.plaf.ListUI} class that defines
	* the look and feel for this component.
	*
	* @return the string "ListUI"
	* @see JComponent#getUIClassID
	* @see UIDefaults#getUI
	*/
	public String getUIClassID() {
	return uiClassID;
	}


	/* -----private-----
	* This method is called by setPrototypeCellValue and setCellRenderer
	* to update the fixedCellWidth and fixedCellHeight properties from the
	* current value of prototypeCellValue (if it's non null).
	* <p>
	* This method sets fixedCellWidth and fixedCellHeight but does <b>not</b>
	* generate PropertyChangeEvents for them.
	*
	* @see #setPrototypeCellValue
	* @see #setCellRenderer
	*/
	private void updateFixedCellSize()
	{
	ListCellRenderer<? super E> cr = getCellRenderer();
	E value = getPrototypeCellValue();

	if ((cr != null) && (value != null)) {
	Component c = cr.getListCellRendererComponent(this, value, 0, false, false);

	/* The ListUI implementation will add Component c to its private
	* CellRendererPane however we can't assume that's already
	* been done here. So we temporarily set the one "inherited"
	* property that may affect the renderer components preferred size:
	* its font.
	*/
	Font f = c.getFont();
	c.setFont(getFont());

	Dimension d = c.getPreferredSize();
	fixedCellWidth = d.width;
	fixedCellHeight = d.height;

	c.setFont(f);
	}
	}


	/**
	* Returns the "prototypical" cell value -- a value used to calculate a
	* fixed width and height for cells. This can be {@code null} if there
	* is no such value.
	*
	* @return the value of the {@code prototypeCellValue} property
	* @see #setPrototypeCellValue
	*/
	public E getPrototypeCellValue() {
	return prototypeCellValue;
	}

	/**
	* Sets the {@code prototypeCellValue} property, and then (if the new value
	* is {@code non-null}), computes the {@code fixedCellWidth} and
	* {@code fixedCellHeight} properties by requesting the cell renderer
	* component for the given value (and index 0) from the cell renderer, and
	* using that component's preferred size.
	* <p>
	* This method is useful when the list is too long to allow the
	* {@code ListUI} to compute the width/height of each cell, and there is a
	* single cell value that is known to occupy as much space as any of the
	* others, a so-called prototype.
	* <p>
	* While all three of the {@code prototypeCellValue},
	* {@code fixedCellHeight}, and {@code fixedCellWidth} properties may be
	* modified by this method, {@code PropertyChangeEvent} notifications are
	* only sent when the {@code prototypeCellValue} property changes.
	* <p>
	* To see an example which sets this property, see the
	* <a href="#prototype_example">class description</a> above.
	* <p>
	* The default value of this property is <code>null</code>.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param prototypeCellValue the value on which to base
	* <code>fixedCellWidth</code> and
	* <code>fixedCellHeight</code>
	* @see #getPrototypeCellValue
	* @see #setFixedCellWidth
	* @see #setFixedCellHeight
	* @see JComponent#addPropertyChangeListener
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The cell prototype value, used to compute cell width and height.
	*/
	public void setPrototypeCellValue(E prototypeCellValue) {
	E oldValue = this.prototypeCellValue;
	this.prototypeCellValue = prototypeCellValue;

	/* If the prototypeCellValue has changed and is non-null,
	* then recompute fixedCellWidth and fixedCellHeight.
	*/

	if ((prototypeCellValue != null) && !prototypeCellValue.equals(oldValue)) {
	updateFixedCellSize();
	}

	firePropertyChange("prototypeCellValue", oldValue, prototypeCellValue);
	}


	/**
	* Returns the value of the {@code fixedCellWidth} property.
	*
	* @return the fixed cell width
	* @see #setFixedCellWidth
	*/
	public int getFixedCellWidth() {
	return fixedCellWidth;
	}

	/**
	* Sets a fixed value to be used for the width of every cell in the list.
	* If {@code width} is -1, cell widths are computed in the {@code ListUI}
	* by applying <code>getPreferredSize</code> to the cell renderer component
	* for each list element.
	* <p>
	* The default value of this property is {@code -1}.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param width the width to be used for all cells in the list
	* @see #setPrototypeCellValue
	* @see #setFixedCellWidth
	* @see JComponent#addPropertyChangeListener
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: Defines a fixed cell width when greater than zero.
	*/
	public void setFixedCellWidth(int width) {
	int oldValue = fixedCellWidth;
	fixedCellWidth = width;
	firePropertyChange("fixedCellWidth", oldValue, fixedCellWidth);
	}


	/**
	* Returns the value of the {@code fixedCellHeight} property.
	*
	* @return the fixed cell height
	* @see #setFixedCellHeight
	*/
	public int getFixedCellHeight() {
	return fixedCellHeight;
	}

	/**
	* Sets a fixed value to be used for the height of every cell in the list.
	* If {@code height} is -1, cell heights are computed in the {@code ListUI}
	* by applying <code>getPreferredSize</code> to the cell renderer component
	* for each list element.
	* <p>
	* The default value of this property is {@code -1}.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param height the height to be used for for all cells in the list
	* @see #setPrototypeCellValue
	* @see #setFixedCellWidth
	* @see JComponent#addPropertyChangeListener
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: Defines a fixed cell height when greater than zero.
	*/
	public void setFixedCellHeight(int height) {
	int oldValue = fixedCellHeight;
	fixedCellHeight = height;
	firePropertyChange("fixedCellHeight", oldValue, fixedCellHeight);
	}


	/**
	* Returns the object responsible for painting list items.
	*
	* @return the value of the {@code cellRenderer} property
	* @see #setCellRenderer
	*/
	@Transient
	public ListCellRenderer<? super E> getCellRenderer() {
	return cellRenderer;
	}

	/**
	* Sets the delegate that is used to paint each cell in the list.
	* The job of a cell renderer is discussed in detail in the
	* <a href="#renderer">class level documentation</a>.
	* <p>
	* If the {@code prototypeCellValue} property is {@code non-null},
	* setting the cell renderer also causes the {@code fixedCellWidth} and
	* {@code fixedCellHeight} properties to be re-calculated. Only one
	* <code>PropertyChangeEvent</code> is generated however -
	* for the <code>cellRenderer</code> property.
	* <p>
	* The default value of this property is provided by the {@code ListUI}
	* delegate, i.e. by the look and feel implementation.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param cellRenderer the <code>ListCellRenderer</code>
	* that paints list cells
	* @see #getCellRenderer
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The component used to draw the cells.
	*/
	public void setCellRenderer(ListCellRenderer<? super E> cellRenderer) {
	ListCellRenderer<? super E> oldValue = this.cellRenderer;
	this.cellRenderer = cellRenderer;

	/* If the cellRenderer has changed and prototypeCellValue
	* was set, then recompute fixedCellWidth and fixedCellHeight.
	*/
	if ((cellRenderer != null) && !cellRenderer.equals(oldValue)) {
	updateFixedCellSize();
	}

	firePropertyChange("cellRenderer", oldValue, cellRenderer);
	}


	/**
	* Returns the color used to draw the foreground of selected items.
	* {@code DefaultListCellRenderer} uses this color to draw the foreground
	* of items in the selected state, as do the renderers installed by most
	* {@code ListUI} implementations.
	*
	* @return the color to draw the foreground of selected items
	* @see #setSelectionForeground
	* @see DefaultListCellRenderer
	*/
	public Color getSelectionForeground() {
	return selectionForeground;
	}


	/**
	* Sets the color used to draw the foreground of selected items, which
	* cell renderers can use to render text and graphics.
	* {@code DefaultListCellRenderer} uses this color to draw the foreground
	* of items in the selected state, as do the renderers installed by most
	* {@code ListUI} implementations.
	* <p>
	* The default value of this property is defined by the look and feel
	* implementation.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param selectionForeground the {@code Color} to use in the foreground
	* for selected list items
	* @see #getSelectionForeground
	* @see #setSelectionBackground
	* @see #setForeground
	* @see #setBackground
	* @see #setFont
	* @see DefaultListCellRenderer
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The foreground color of selected cells.
	*/
	public void setSelectionForeground(Color selectionForeground) {
	Color oldValue = this.selectionForeground;
	this.selectionForeground = selectionForeground;
	firePropertyChange("selectionForeground", oldValue, selectionForeground);
	}


	/**
	* Returns the color used to draw the background of selected items.
	* {@code DefaultListCellRenderer} uses this color to draw the background
	* of items in the selected state, as do the renderers installed by most
	* {@code ListUI} implementations.
	*
	* @return the color to draw the background of selected items
	* @see #setSelectionBackground
	* @see DefaultListCellRenderer
	*/
	public Color getSelectionBackground() {
	return selectionBackground;
	}


	/**
	* Sets the color used to draw the background of selected items, which
	* cell renderers can use fill selected cells.
	* {@code DefaultListCellRenderer} uses this color to fill the background
	* of items in the selected state, as do the renderers installed by most
	* {@code ListUI} implementations.
	* <p>
	* The default value of this property is defined by the look
	* and feel implementation.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param selectionBackground the {@code Color} to use for the
	* background of selected cells
	* @see #getSelectionBackground
	* @see #setSelectionForeground
	* @see #setForeground
	* @see #setBackground
	* @see #setFont
	* @see DefaultListCellRenderer
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The background color of selected cells.
	*/
	public void setSelectionBackground(Color selectionBackground) {
	Color oldValue = this.selectionBackground;
	this.selectionBackground = selectionBackground;
	firePropertyChange("selectionBackground", oldValue, selectionBackground);
	}


	/**
	* Returns the value of the {@code visibleRowCount} property. See the
	* documentation for {@link #setVisibleRowCount} for details on how to
	* interpret this value.
	*
	* @return the value of the {@code visibleRowCount} property.
	* @see #setVisibleRowCount
	*/
	public int getVisibleRowCount() {
	return visibleRowCount;
	}

	/**
	* Sets the {@code visibleRowCount} property, which has different meanings
	* depending on the layout orientation: For a {@code VERTICAL} layout
	* orientation, this sets the preferred number of rows to display without
	* requiring scrolling; for other orientations, it affects the wrapping of
	* cells.
	* <p>
	* In {@code VERTICAL} orientation:<br>
	* Setting this property affects the return value of the
	* {@link #getPreferredScrollableViewportSize} method, which is used to
	* calculate the preferred size of an enclosing viewport. See that method's
	* documentation for more details.
	* <p>
	* In {@code HORIZONTAL_WRAP} and {@code VERTICAL_WRAP} orientations:<br>
	* This affects how cells are wrapped. See the documentation of
	* {@link #setLayoutOrientation} for more details.
	* <p>
	* The default value of this property is {@code 8}.
	* <p>
	* Calling this method with a negative value results in the property
	* being set to {@code 0}.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param visibleRowCount an integer specifying the preferred number of
	* rows to display without requiring scrolling
	* @see #getVisibleRowCount
	* @see #getPreferredScrollableViewportSize
	* @see #setLayoutOrientation
	* @see JComponent#getVisibleRect
	* @see JViewport
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The preferred number of rows to display without
	* requiring scrolling
	*/
	public void setVisibleRowCount(int visibleRowCount) {
	int oldValue = this.visibleRowCount;
	this.visibleRowCount = Math.max(0, visibleRowCount);
	firePropertyChange("visibleRowCount", oldValue, visibleRowCount);
	}


	/**
	* Returns the layout orientation property for the list: {@code VERTICAL}
	* if the layout is a single column of cells, {@code VERTICAL_WRAP} if the
	* layout is "newspaper style" with the content flowing vertically then
	* horizontally, or {@code HORIZONTAL_WRAP} if the layout is "newspaper
	* style" with the content flowing horizontally then vertically.
	*
	* @return the value of the {@code layoutOrientation} property
	* @see #setLayoutOrientation
	* @since 1.4
	*/
	public int getLayoutOrientation() {
	return layoutOrientation;
	}


	/**
	* Defines the way list cells are layed out. Consider a {@code JList}
	* with five cells. Cells can be layed out in one of the following ways:
	*
	* <pre>
	* VERTICAL: 0
	* 1
	* 2
	* 3
	* 4
	*
	* HORIZONTAL_WRAP: 0 1 2
	* 3 4
	*
	* VERTICAL_WRAP: 0 3
	* 1 4
	* 2
	* </pre>
	* <p>
	* A description of these layouts follows:
	*
	* <table border="1"
	* summary="Describes layouts VERTICAL, HORIZONTAL_WRAP, and VERTICAL_WRAP">
	* <tr><th><p style="text-align:left">Value</p></th><th><p style="text-align:left">Description</p></th></tr>
	* <tr><td><code>VERTICAL</code>
	* <td>Cells are layed out vertically in a single column.
	* <tr><td><code>HORIZONTAL_WRAP</code>
	* <td>Cells are layed out horizontally, wrapping to a new row as
	* necessary. If the {@code visibleRowCount} property is less than
	* or equal to zero, wrapping is determined by the width of the
	* list; otherwise wrapping is done in such a way as to ensure
	* {@code visibleRowCount} rows in the list.
	* <tr><td><code>VERTICAL_WRAP</code>
	* <td>Cells are layed out vertically, wrapping to a new column as
	* necessary. If the {@code visibleRowCount} property is less than
	* or equal to zero, wrapping is determined by the height of the
	* list; otherwise wrapping is done at {@code visibleRowCount} rows.
	* </table>
	* <p>
	* The default value of this property is <code>VERTICAL</code>.
	*
	* @param layoutOrientation the new layout orientation, one of:
	* {@code VERTICAL}, {@code HORIZONTAL_WRAP} or {@code VERTICAL_WRAP}
	* @see #getLayoutOrientation
	* @see #setVisibleRowCount
	* @see #getScrollableTracksViewportHeight
	* @see #getScrollableTracksViewportWidth
	* @throws IllegalArgumentException if {@code layoutOrientation} isn't one of the
	* allowable values
	* @since 1.4
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: Defines the way list cells are layed out.
	* enum: VERTICAL JList.VERTICAL
	* HORIZONTAL_WRAP JList.HORIZONTAL_WRAP
	* VERTICAL_WRAP JList.VERTICAL_WRAP
	*/
	public void setLayoutOrientation(int layoutOrientation) {
	int oldValue = this.layoutOrientation;
	switch (layoutOrientation) {
	case VERTICAL:
	case VERTICAL_WRAP:
	case HORIZONTAL_WRAP:
	this.layoutOrientation = layoutOrientation;
	firePropertyChange("layoutOrientation", oldValue, layoutOrientation);
	break;
	default:
	throw new IllegalArgumentException("layoutOrientation must be one of: VERTICAL, HORIZONTAL_WRAP or VERTICAL_WRAP");
	}
	}


	/**
	* Returns the smallest list index that is currently visible.
	* In a left-to-right {@code componentOrientation}, the first visible
	* cell is found closest to the list's upper-left corner. In right-to-left
	* orientation, it is found closest to the upper-right corner.
	* If nothing is visible or the list is empty, {@code -1} is returned.
	* Note that the returned cell may only be partially visible.
	*
	* @return the index of the first visible cell
	* @see #getLastVisibleIndex
	* @see JComponent#getVisibleRect
	*/
	public int getFirstVisibleIndex() {
	Rectangle r = getVisibleRect();
	int first;
	if (this.getComponentOrientation().isLeftToRight()) {
	first = locationToIndex(r.getLocation());
	} else {
	first = locationToIndex(new Point((r.x + r.width) - 1, r.y));
	}
	if (first != -1) {
	Rectangle bounds = getCellBounds(first, first);
	if (bounds != null) {
	SwingUtilities.computeIntersection(r.x, r.y, r.width, r.height, bounds);
	if (bounds.width == 0 \|\| bounds.height == 0) {
	first = -1;
	}
	}
	}
	return first;
	}


	/**
	* Returns the largest list index that is currently visible.
	* If nothing is visible or the list is empty, {@code -1} is returned.
	* Note that the returned cell may only be partially visible.
	*
	* @return the index of the last visible cell
	* @see #getFirstVisibleIndex
	* @see JComponent#getVisibleRect
	*/
	public int getLastVisibleIndex() {
	boolean leftToRight = this.getComponentOrientation().isLeftToRight();
	Rectangle r = getVisibleRect();
	Point lastPoint;
	if (leftToRight) {
	lastPoint = new Point((r.x + r.width) - 1, (r.y + r.height) - 1);
	} else {
	lastPoint = new Point(r.x, (r.y + r.height) - 1);
	}
	int location = locationToIndex(lastPoint);

	if (location != -1) {
	Rectangle bounds = getCellBounds(location, location);

	if (bounds != null) {
	SwingUtilities.computeIntersection(r.x, r.y, r.width, r.height, bounds);
	if (bounds.width == 0 \|\| bounds.height == 0) {
	// Try the top left(LTR) or top right(RTL) corner, and
	// then go across checking each cell for HORIZONTAL_WRAP.
	// Try the lower left corner, and then go across checking
	// each cell for other list layout orientation.
	boolean isHorizontalWrap =
	(getLayoutOrientation() == HORIZONTAL_WRAP);
	Point visibleLocation = isHorizontalWrap ?
	new Point(lastPoint.x, r.y) :
	new Point(r.x, lastPoint.y);
	int last;
	int visIndex = -1;
	int lIndex = location;
	location = -1;

	do {
	last = visIndex;
	visIndex = locationToIndex(visibleLocation);

	if (visIndex != -1) {
	bounds = getCellBounds(visIndex, visIndex);
	if (visIndex != lIndex && bounds != null &&
	bounds.contains(visibleLocation)) {
	location = visIndex;
	if (isHorizontalWrap) {
	visibleLocation.y = bounds.y + bounds.height;
	if (visibleLocation.y >= lastPoint.y) {
	// Past visible region, bail.
	last = visIndex;
	}
	}
	else {
	visibleLocation.x = bounds.x + bounds.width;
	if (visibleLocation.x >= lastPoint.x) {
	// Past visible region, bail.
	last = visIndex;
	}
	}

	}
	else {
	last = visIndex;
	}
	}
	} while (visIndex != -1 && last != visIndex);
	}
	}
	}
	return location;
	}


	/**
	* Scrolls the list within an enclosing viewport to make the specified
	* cell completely visible. This calls {@code scrollRectToVisible} with
	* the bounds of the specified cell. For this method to work, the
	* {@code JList} must be within a <code>JViewport</code>.
	* <p>
	* If the given index is outside the list's range of cells, this method
	* results in nothing.
	*
	* @param index the index of the cell to make visible
	* @see JComponent#scrollRectToVisible
	* @see #getVisibleRect
	*/
	public void ensureIndexIsVisible(int index) {
	Rectangle cellBounds = getCellBounds(index, index);
	if (cellBounds != null) {
	scrollRectToVisible(cellBounds);
	}
	}

	/**
	* Turns on or off automatic drag handling. In order to enable automatic
	* drag handling, this property should be set to {@code true}, and the
	* list's {@code TransferHandler} needs to be {@code non-null}.
	* The default value of the {@code dragEnabled} property is {@code false}.
	* <p>
	* The job of honoring this property, and recognizing a user drag gesture,
	* lies with the look and feel implementation, and in particular, the list's
	* {@code ListUI}. When automatic drag handling is enabled, most look and
	* feels (including those that subclass {@code BasicLookAndFeel}) begin a
	* drag and drop operation whenever the user presses the mouse button over
	* an item and then moves the mouse a few pixels. Setting this property to
	* {@code true} can therefore have a subtle effect on how selections behave.
	* <p>
	* If a look and feel is used that ignores this property, you can still
	* begin a drag and drop operation by calling {@code exportAsDrag} on the
	* list's {@code TransferHandler}.
	*
	* @param b whether or not to enable automatic drag handling
	* @exception HeadlessException if
	* <code>b</code> is <code>true</code> and
	* <code>GraphicsEnvironment.isHeadless()</code>
	* returns <code>true</code>
	* @see java.awt.GraphicsEnvironment#isHeadless
	* @see #getDragEnabled
	* @see #setTransferHandler
	* @see TransferHandler
	* @since 1.4
	*
	* @beaninfo
	* description: determines whether automatic drag handling is enabled
	* bound: false
	*/
	public void setDragEnabled(boolean b) {
	if (b && GraphicsEnvironment.isHeadless()) {
	throw new HeadlessException();
	}
	dragEnabled = b;
	}

	/**
	* Returns whether or not automatic drag handling is enabled.
	*
	* @return the value of the {@code dragEnabled} property
	* @see #setDragEnabled
	* @since 1.4
	*/
	public boolean getDragEnabled() {
	return dragEnabled;
	}

	/**
	* Sets the drop mode for this component. For backward compatibility,
	* the default for this property is <code>DropMode.USE_SELECTION</code>.
	* Usage of one of the other modes is recommended, however, for an
	* improved user experience. <code>DropMode.ON</code>, for instance,
	* offers similar behavior of showing items as selected, but does so without
	* affecting the actual selection in the list.
	* <p>
	* <code>JList</code> supports the following drop modes:
	* <ul>
	* <li><code>DropMode.USE_SELECTION</code></li>
	* <li><code>DropMode.ON</code></li>
	* <li><code>DropMode.INSERT</code></li>
	* <li><code>DropMode.ON_OR_INSERT</code></li>
	* </ul>
	* The drop mode is only meaningful if this component has a
	* <code>TransferHandler</code> that accepts drops.
	*
	* @param dropMode the drop mode to use
	* @throws IllegalArgumentException if the drop mode is unsupported
	* or <code>null</code>
	* @see #getDropMode
	* @see #getDropLocation
	* @see #setTransferHandler
	* @see TransferHandler
	* @since 1.6
	*/
	public final void setDropMode(DropMode dropMode) {
	if (dropMode != null) {
	switch (dropMode) {
	case USE_SELECTION:
	case ON:
	case INSERT:
	case ON_OR_INSERT:
	this.dropMode = dropMode;
	return;
	}
	}

	throw new IllegalArgumentException(dropMode + ": Unsupported drop mode for list");
	}

	/**
	* Returns the drop mode for this component.
	*
	* @return the drop mode for this component
	* @see #setDropMode
	* @since 1.6
	*/
	public final DropMode getDropMode() {
	return dropMode;
	}

	/**
	* Calculates a drop location in this component, representing where a
	* drop at the given point should insert data.
	*
	* @param p the point to calculate a drop location for
	* @return the drop location, or <code>null</code>
	*/
	DropLocation dropLocationForPoint(Point p) {
	DropLocation location = null;
	Rectangle rect = null;

	int index = locationToIndex(p);
	if (index != -1) {
	rect = getCellBounds(index, index);
	}

	switch(dropMode) {
	case USE_SELECTION:
	case ON:
	location = new DropLocation(p,
	(rect != null && rect.contains(p)) ? index : -1,
	false);

	break;
	case INSERT:
	if (index == -1) {
	location = new DropLocation(p, getModel().getSize(), true);
	break;
	}

	if (layoutOrientation == HORIZONTAL_WRAP) {
	boolean ltr = getComponentOrientation().isLeftToRight();

	if (SwingUtilities2.liesInHorizontal(rect, p, ltr, false) == TRAILING) {
	index++;
	// special case for below all cells
	} else if (index == getModel().getSize() - 1 && p.y >= rect.y + rect.height) {
	index++;
	}
	} else {
	if (SwingUtilities2.liesInVertical(rect, p, false) == TRAILING) {
	index++;
	}
	}

	location = new DropLocation(p, index, true);

	break;
	case ON_OR_INSERT:
	if (index == -1) {
	location = new DropLocation(p, getModel().getSize(), true);
	break;
	}

	boolean between = false;

	if (layoutOrientation == HORIZONTAL_WRAP) {
	boolean ltr = getComponentOrientation().isLeftToRight();

	Section section = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);
	if (section == TRAILING) {
	index++;
	between = true;
	// special case for below all cells
	} else if (index == getModel().getSize() - 1 && p.y >= rect.y + rect.height) {
	index++;
	between = true;
	} else if (section == LEADING) {
	between = true;
	}
	} else {
	Section section = SwingUtilities2.liesInVertical(rect, p, true);
	if (section == LEADING) {
	between = true;
	} else if (section == TRAILING) {
	index++;
	between = true;
	}
	}

	location = new DropLocation(p, index, between);

	break;
	default:
	assert false : "Unexpected drop mode";
	}

	return location;
	}

	/**
	* Called to set or clear the drop location during a DnD operation.
	* In some cases, the component may need to use it's 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) {

	Object retVal = null;
	DropLocation listLocation = (DropLocation)location;

	if (dropMode == DropMode.USE_SELECTION) {
	if (listLocation == null) {
	if (!forDrop && state != null) {
	setSelectedIndices(((int[][])state)[0]);

	int anchor = ((int[][])state)[1][0];
	int lead = ((int[][])state)[1][1];

	SwingUtilities2.setLeadAnchorWithoutSelection(
	getSelectionModel(), lead, anchor);
	}
	} else {
	if (dropLocation == null) {
	int[] inds = getSelectedIndices();
	retVal = new int[][] {inds, {getAnchorSelectionIndex(),
	getLeadSelectionIndex()}};
	} else {
	retVal = state;
	}

	int index = listLocation.getIndex();
	if (index == -1) {
	clearSelection();
	getSelectionModel().setAnchorSelectionIndex(-1);
	getSelectionModel().setLeadSelectionIndex(-1);
	} else {
	setSelectionInterval(index, index);
	}
	}
	}

	DropLocation old = dropLocation;
	dropLocation = listLocation;
	firePropertyChange("dropLocation", old, dropLocation);

	return retVal;
	}

	/**
	* Returns the location that this component should visually indicate
	* as the drop location during a DnD operation over the component,
	* or {@code null} if no location is to currently be shown.
	* <p>
	* This method is not meant for querying the drop location
	* from a {@code TransferHandler}, as the drop location is only
	* set after the {@code TransferHandler}'s <code>canImport</code>
	* has returned and has allowed for the location to be shown.
	* <p>
	* When this property changes, a property change event with
	* name "dropLocation" is fired by the component.
	* <p>
	* By default, responsibility for listening for changes to this property
	* and indicating the drop location visually lies with the list's
	* {@code ListUI}, which may paint it directly and/or install a cell
	* renderer to do so. Developers wishing to implement custom drop location
	* painting and/or replace the default cell renderer, may need to honor
	* this property.
	*
	* @return the drop location
	* @see #setDropMode
	* @see TransferHandler#canImport(TransferHandler.TransferSupport)
	* @since 1.6
	*/
	public final DropLocation getDropLocation() {
	return dropLocation;
	}

	/**
	* Returns the next list element whose {@code toString} value
	* starts with the given prefix.
	*
	* @param prefix the string to test for a match
	* @param startIndex the index for starting the search
	* @param bias the search direction, either
	* Position.Bias.Forward or Position.Bias.Backward.
	* @return the index of the next list element that
	* starts with the prefix; otherwise {@code -1}
	* @exception IllegalArgumentException if prefix is {@code null}
	* or startIndex is out of bounds
	* @since 1.4
	*/
	public int getNextMatch(String prefix, int startIndex, Position.Bias bias) {
	ListModel<E> model = getModel();
	int max = model.getSize();
	if (prefix == null) {
	throw new IllegalArgumentException();
	}
	if (startIndex < 0 \|\| startIndex >= max) {
	throw new IllegalArgumentException();
	}
	prefix = prefix.toUpperCase();

	// start search from the next element after the selected element
	int increment = (bias == Position.Bias.Forward) ? 1 : -1;
	int index = startIndex;
	do {
	E element = model.getElementAt(index);

	if (element != null) {
	String string;

	if (element instanceof String) {
	string = ((String)element).toUpperCase();
	}
	else {
	string = element.toString();
	if (string != null) {
	string = string.toUpperCase();
	}
	}

	if (string != null && string.startsWith(prefix)) {
	return index;
	}
	}
	index = (index + increment + max) % max;
	} while (index != startIndex);
	return -1;
	}

	/**
	* Returns the tooltip text to be used for the given event. This overrides
	* {@code JComponent}'s {@code getToolTipText} to first check the cell
	* renderer component for the cell over which the event occurred, returning
	* its tooltip text, if any. This implementation allows you to specify
	* tooltip text on the cell level, by using {@code setToolTipText} on your
	* cell renderer component.
	* <p>
	* <strong>Note:</strong> For <code>JList</code> to properly display the
	* tooltips of its renderers in this manner, <code>JList</code> must be a
	* registered component with the <code>ToolTipManager</code>. This registration
	* is done automatically in the constructor. However, if at a later point
	* <code>JList</code> is unregistered, by way of a call to
	* {@code setToolTipText(null)}, tips from the renderers will no longer display.
	*
	* @param event the {@code MouseEvent} to fetch the tooltip text for
	* @see JComponent#setToolTipText
	* @see JComponent#getToolTipText
	*/
	public String getToolTipText(MouseEvent event) {
	if(event != null) {
	Point p = event.getPoint();
	int index = locationToIndex(p);
	ListCellRenderer<? super E> r = getCellRenderer();
	Rectangle cellBounds;

	if (index != -1 && r != null && (cellBounds =
	getCellBounds(index, index)) != null &&
	cellBounds.contains(p.x, p.y)) {
	ListSelectionModel lsm = getSelectionModel();
	Component rComponent = r.getListCellRendererComponent(
	this, getModel().getElementAt(index), index,
	lsm.isSelectedIndex(index),
	(hasFocus() && (lsm.getLeadSelectionIndex() ==
	index)));

	if(rComponent instanceof JComponent) {
	MouseEvent newEvent;

	p.translate(-cellBounds.x, -cellBounds.y);
	newEvent = new MouseEvent(rComponent, event.getID(),
	event.getWhen(),
	event.getModifiers(),
	p.x, p.y,
	event.getXOnScreen(),
	event.getYOnScreen(),
	event.getClickCount(),
	event.isPopupTrigger(),
	MouseEvent.NOBUTTON);
	MouseEventAccessor meAccessor =
	AWTAccessor.getMouseEventAccessor();
	meAccessor.setCausedByTouchEvent(newEvent,
	meAccessor.isCausedByTouchEvent(event));

	String tip = ((JComponent)rComponent).getToolTipText(
	newEvent);

	if (tip != null) {
	return tip;
	}
	}
	}
	}
	return super.getToolTipText();
	}

	/**
	* --- ListUI Delegations ---
	*/


	/**
	* Returns the cell index closest to the given location in the list's
	* coordinate system. To determine if the cell actually contains the
	* specified location, compare the point against the cell's bounds,
	* as provided by {@code getCellBounds}. This method returns {@code -1}
	* if the model is empty
	* <p>
	* This is a cover method that delegates to the method of the same name
	* in the list's {@code ListUI}. It returns {@code -1} if the list has
	* no {@code ListUI}.
	*
	* @param location the coordinates of the point
	* @return the cell index closest to the given location, or {@code -1}
	*/
	public int locationToIndex(Point location) {
	ListUI ui = getUI();
	return (ui != null) ? ui.locationToIndex(this, location) : -1;
	}


	/**
	* Returns the origin of the specified item in the list's coordinate
	* system. This method returns {@code null} if the index isn't valid.
	* <p>
	* This is a cover method that delegates to the method of the same name
	* in the list's {@code ListUI}. It returns {@code null} if the list has
	* no {@code ListUI}.
	*
	* @param index the cell index
	* @return the origin of the cell, or {@code null}
	*/
	public Point indexToLocation(int index) {
	ListUI ui = getUI();
	return (ui != null) ? ui.indexToLocation(this, index) : null;
	}


	/**
	* Returns the bounding rectangle, in the list's coordinate system,
	* for the range of cells specified by the two indices.
	* These indices can be supplied in any order.
	* <p>
	* If the smaller index is outside the list's range of cells, this method
	* returns {@code null}. If the smaller index is valid, but the larger
	* index is outside the list's range, the bounds of just the first index
	* is returned. Otherwise, the bounds of the valid range is returned.
	* <p>
	* This is a cover method that delegates to the method of the same name
	* in the list's {@code ListUI}. It returns {@code null} if the list has
	* no {@code ListUI}.
	*
	* @param index0 the first index in the range
	* @param index1 the second index in the range
	* @return the bounding rectangle for the range of cells, or {@code null}
	*/
	public Rectangle getCellBounds(int index0, int index1) {
	ListUI ui = getUI();
	return (ui != null) ? ui.getCellBounds(this, index0, index1) : null;
	}


	/**
	* --- ListModel Support ---
	*/


	/**
	* Returns the data model that holds the list of items displayed
	* by the <code>JList</code> component.
	*
	* @return the <code>ListModel</code> that provides the displayed
	* list of items
	* @see #setModel
	*/
	public ListModel<E> getModel() {
	return dataModel;
	}

	/**
	* Sets the model that represents the contents or "value" of the
	* list, notifies property change listeners, and then clears the
	* list's selection.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param model the <code>ListModel</code> that provides the
	* list of items for display
	* @exception IllegalArgumentException if <code>model</code> is
	* <code>null</code>
	* @see #getModel
	* @see #clearSelection
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The object that contains the data to be drawn by this JList.
	*/
	public void setModel(ListModel<E> model) {
	if (model == null) {
	throw new IllegalArgumentException("model must be non null");
	}
	ListModel<E> oldValue = dataModel;
	dataModel = model;
	firePropertyChange("model", oldValue, dataModel);
	clearSelection();
	}


	/**
	* Constructs a read-only <code>ListModel</code> from an array of items,
	* and calls {@code setModel} with this model.
	* <p>
	* Attempts to pass a {@code null} value to this method results in
	* undefined behavior and, most likely, exceptions. The created model
	* references the given array directly. Attempts to modify the array
	* after invoking this method results in undefined behavior.
	*
	* @param listData an array of {@code E} containing the items to
	* display in the list
	* @see #setModel
	*/
	public void setListData(final E[] listData) {
	setModel (
	new AbstractListModel<E>() {
	public int getSize() { return listData.length; }
	public E getElementAt(int i) { return listData[i]; }
	}
	);
	}


	/**
	* Constructs a read-only <code>ListModel</code> from a <code>Vector</code>
	* and calls {@code setModel} with this model.
	* <p>
	* Attempts to pass a {@code null} value to this method results in
	* undefined behavior and, most likely, exceptions. The created model
	* references the given {@code Vector} directly. Attempts to modify the
	* {@code Vector} after invoking this method results in undefined behavior.
	*
	* @param listData a <code>Vector</code> containing the items to
	* display in the list
	* @see #setModel
	*/
	public void setListData(final Vector<? extends E> listData) {
	setModel (
	new AbstractListModel<E>() {
	public int getSize() { return listData.size(); }
	public E getElementAt(int i) { return listData.elementAt(i); }
	}
	);
	}


	/**
	* --- ListSelectionModel delegations and extensions ---
	*/


	/**
	* Returns an instance of {@code DefaultListSelectionModel}; called
	* during construction to initialize the list's selection model
	* property.
	*
	* @return a {@code DefaultListSelecitonModel}, used to initialize
	* the list's selection model property during construction
	* @see #setSelectionModel
	* @see DefaultListSelectionModel
	*/
	protected ListSelectionModel createSelectionModel() {
	return new DefaultListSelectionModel();
	}


	/**
	* Returns the current selection model. The selection model maintains the
	* selection state of the list. See the class level documentation for more
	* details.
	*
	* @return the <code>ListSelectionModel</code> that maintains the
	* list's selections
	*
	* @see #setSelectionModel
	* @see ListSelectionModel
	*/
	public ListSelectionModel getSelectionModel() {
	return selectionModel;
	}


	/**
	* Notifies {@code ListSelectionListener}s added directly to the list
	* of selection changes made to the selection model. {@code JList}
	* listens for changes made to the selection in the selection model,
	* and forwards notification to listeners added to the list directly,
	* by calling this method.
	* <p>
	* This method constructs a {@code ListSelectionEvent} with this list
	* as the source, and the specified arguments, and sends it to the
	* registered {@code ListSelectionListeners}.
	*
	* @param firstIndex the first index in the range, {@code <= lastIndex}
	* @param lastIndex the last index in the range, {@code >= firstIndex}
	* @param isAdjusting whether or not this is one in a series of
	* multiple events, where changes are still being made
	*
	* @see #addListSelectionListener
	* @see #removeListSelectionListener
	* @see javax.swing.event.ListSelectionEvent
	* @see EventListenerList
	*/
	protected void fireSelectionValueChanged(int firstIndex, int lastIndex,
	boolean isAdjusting)
	{
	Object[] listeners = listenerList.getListenerList();
	ListSelectionEvent e = null;

	for (int i = listeners.length - 2; i >= 0; i -= 2) {
	if (listeners[i] == ListSelectionListener.class) {
	if (e == null) {
	e = new ListSelectionEvent(this, firstIndex, lastIndex,
	isAdjusting);
	}
	((ListSelectionListener)listeners[i+1]).valueChanged(e);
	}
	}
	}


	/* A ListSelectionListener that forwards ListSelectionEvents from
	* the selectionModel to the JList ListSelectionListeners. The
	* forwarded events only differ from the originals in that their
	* source is the JList instead of the selectionModel itself.
	*/
	private class ListSelectionHandler implements ListSelectionListener, Serializable
	{
	public void valueChanged(ListSelectionEvent e) {
	fireSelectionValueChanged(e.getFirstIndex(),
	e.getLastIndex(),
	e.getValueIsAdjusting());
	}
	}


	/**
	* Adds a listener to the list, to be notified each time a change to the
	* selection occurs; the preferred way of listening for selection state
	* changes. {@code JList} takes care of listening for selection state
	* changes in the selection model, and notifies the given listener of
	* each change. {@code ListSelectionEvent}s sent to the listener have a
	* {@code source} property set to this list.
	*
	* @param listener the {@code ListSelectionListener} to add
	* @see #getSelectionModel
	* @see #getListSelectionListeners
	*/
	public void addListSelectionListener(ListSelectionListener listener)
	{
	if (selectionListener == null) {
	selectionListener = new ListSelectionHandler();
	getSelectionModel().addListSelectionListener(selectionListener);
	}

	listenerList.add(ListSelectionListener.class, listener);
	}


	/**
	* Removes a selection listener from the list.
	*
	* @param listener the {@code ListSelectionListener} to remove
	* @see #addListSelectionListener
	* @see #getSelectionModel
	*/
	public void removeListSelectionListener(ListSelectionListener listener) {
	listenerList.remove(ListSelectionListener.class, listener);
	}


	/**
	* Returns an array of all the {@code ListSelectionListener}s added
	* to this {@code JList} by way of {@code addListSelectionListener}.
	*
	* @return all of the {@code ListSelectionListener}s on this list, or
	* an empty array if no listeners have been added
	* @see #addListSelectionListener
	* @since 1.4
	*/
	public ListSelectionListener[] getListSelectionListeners() {
	return listenerList.getListeners(ListSelectionListener.class);
	}


	/**
	* Sets the <code>selectionModel</code> for the list to a
	* non-<code>null</code> <code>ListSelectionModel</code>
	* implementation. The selection model handles the task of making single
	* selections, selections of contiguous ranges, and non-contiguous
	* selections.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @param selectionModel the <code>ListSelectionModel</code> that
	* implements the selections
	* @exception IllegalArgumentException if <code>selectionModel</code>
	* is <code>null</code>
	* @see #getSelectionModel
	* @beaninfo
	* bound: true
	* description: The selection model, recording which cells are selected.
	*/
	public void setSelectionModel(ListSelectionModel selectionModel) {
	if (selectionModel == null) {
	throw new IllegalArgumentException("selectionModel must be non null");
	}

	/* Remove the forwarding ListSelectionListener from the old
	* selectionModel, and add it to the new one, if necessary.
	*/
	if (selectionListener != null) {
	this.selectionModel.removeListSelectionListener(selectionListener);
	selectionModel.addListSelectionListener(selectionListener);
	}

	ListSelectionModel oldValue = this.selectionModel;
	this.selectionModel = selectionModel;
	firePropertyChange("selectionModel", oldValue, selectionModel);
	}


	/**
	* Sets the selection mode for the list. This is a cover method that sets
	* the selection mode directly on the selection model.
	* <p>
	* The following list describes the accepted selection modes:
	* <ul>
	* <li>{@code ListSelectionModel.SINGLE_SELECTION} -
	* Only one list index can be selected at a time. In this mode,
	* {@code setSelectionInterval} and {@code addSelectionInterval} are
	* equivalent, both replacing the current selection with the index
	* represented by the second argument (the "lead").
	* <li>{@code ListSelectionModel.SINGLE_INTERVAL_SELECTION} -
	* Only one contiguous interval can be selected at a time.
	* In this mode, {@code addSelectionInterval} behaves like
	* {@code setSelectionInterval} (replacing the current selection},
	* unless the given interval is immediately adjacent to or overlaps
	* the existing selection, and can be used to grow the selection.
	* <li>{@code ListSelectionModel.MULTIPLE_INTERVAL_SELECTION} -
	* In this mode, there's no restriction on what can be selected.
	* This mode is the default.
	* </ul>
	*
	* @param selectionMode the selection mode
	* @see #getSelectionMode
	* @throws IllegalArgumentException if the selection mode isn't
	* one of those allowed
	* @beaninfo
	* description: The selection mode.
	* enum: SINGLE_SELECTION ListSelectionModel.SINGLE_SELECTION
	* SINGLE_INTERVAL_SELECTION ListSelectionModel.SINGLE_INTERVAL_SELECTION
	* MULTIPLE_INTERVAL_SELECTION ListSelectionModel.MULTIPLE_INTERVAL_SELECTION
	*/
	public void setSelectionMode(int selectionMode) {
	getSelectionModel().setSelectionMode(selectionMode);
	}

	/**
	* Returns the current selection mode for the list. This is a cover
	* method that delegates to the method of the same name on the
	* list's selection model.
	*
	* @return the current selection mode
	* @see #setSelectionMode
	*/
	public int getSelectionMode() {
	return getSelectionModel().getSelectionMode();
	}


	/**
	* Returns the anchor selection index. This is a cover method that
	* delegates to the method of the same name on the list's selection model.
	*
	* @return the anchor selection index
	* @see ListSelectionModel#getAnchorSelectionIndex
	*/
	public int getAnchorSelectionIndex() {
	return getSelectionModel().getAnchorSelectionIndex();
	}


	/**
	* Returns the lead selection index. This is a cover method that
	* delegates to the method of the same name on the list's selection model.
	*
	* @return the lead selection index
	* @see ListSelectionModel#getLeadSelectionIndex
	* @beaninfo
	* description: The lead selection index.
	*/
	public int getLeadSelectionIndex() {
	return getSelectionModel().getLeadSelectionIndex();
	}


	/**
	* Returns the smallest selected cell index, or {@code -1} if the selection
	* is empty. This is a cover method that delegates to the method of the same
	* name on the list's selection model.
	*
	* @return the smallest selected cell index, or {@code -1}
	* @see ListSelectionModel#getMinSelectionIndex
	*/
	public int getMinSelectionIndex() {
	return getSelectionModel().getMinSelectionIndex();
	}


	/**
	* Returns the largest selected cell index, or {@code -1} if the selection
	* is empty. This is a cover method that delegates to the method of the same
	* name on the list's selection model.
	*
	* @return the largest selected cell index
	* @see ListSelectionModel#getMaxSelectionIndex
	*/
	public int getMaxSelectionIndex() {
	return getSelectionModel().getMaxSelectionIndex();
	}


	/**
	* Returns {@code true} if the specified index is selected,
	* else {@code false}. This is a cover method that delegates to the method
	* of the same name on the list's selection model.
	*
	* @param index index to be queried for selection state
	* @return {@code true} if the specified index is selected,
	* else {@code false}
	* @see ListSelectionModel#isSelectedIndex
	* @see #setSelectedIndex
	*/
	public boolean isSelectedIndex(int index) {
	return getSelectionModel().isSelectedIndex(index);
	}


	/**
	* Returns {@code true} if nothing is selected, else {@code false}.
	* This is a cover method that delegates to the method of the same
	* name on the list's selection model.
	*
	* @return {@code true} if nothing is selected, else {@code false}
	* @see ListSelectionModel#isSelectionEmpty
	* @see #clearSelection
	*/
	public boolean isSelectionEmpty() {
	return getSelectionModel().isSelectionEmpty();
	}


	/**
	* Clears the selection; after calling this method, {@code isSelectionEmpty}
	* will return {@code true}. This is a cover method that delegates to the
	* method of the same name on the list's selection model.
	*
	* @see ListSelectionModel#clearSelection
	* @see #isSelectionEmpty
	*/
	public void clearSelection() {
	getSelectionModel().clearSelection();
	}


	/**
	* Selects the specified interval. Both {@code anchor} and {@code lead}
	* indices are included. {@code anchor} doesn't have to be less than or
	* equal to {@code lead}. This is a cover method that delegates to the
	* method of the same name on the list's selection model.
	* <p>
	* Refer to the documentation of the selection model class being used
	* for details on how values less than {@code 0} are handled.
	*
	* @param anchor the first index to select
	* @param lead the last index to select
	* @see ListSelectionModel#setSelectionInterval
	* @see DefaultListSelectionModel#setSelectionInterval
	* @see #createSelectionModel
	* @see #addSelectionInterval
	* @see #removeSelectionInterval
	*/
	public void setSelectionInterval(int anchor, int lead) {
	getSelectionModel().setSelectionInterval(anchor, lead);
	}


	/**
	* Sets the selection to be the union of the specified interval with current
	* selection. Both the {@code anchor} and {@code lead} indices are
	* included. {@code anchor} doesn't have to be less than or
	* equal to {@code lead}. This is a cover method that delegates to the
	* method of the same name on the list's selection model.
	* <p>
	* Refer to the documentation of the selection model class being used
	* for details on how values less than {@code 0} are handled.
	*
	* @param anchor the first index to add to the selection
	* @param lead the last index to add to the selection
	* @see ListSelectionModel#addSelectionInterval
	* @see DefaultListSelectionModel#addSelectionInterval
	* @see #createSelectionModel
	* @see #setSelectionInterval
	* @see #removeSelectionInterval
	*/
	public void addSelectionInterval(int anchor, int lead) {
	getSelectionModel().addSelectionInterval(anchor, lead);
	}


	/**
	* Sets the selection to be the set difference of the specified interval
	* and the current selection. Both the {@code index0} and {@code index1}
	* indices are removed. {@code index0} doesn't have to be less than or
	* equal to {@code index1}. This is a cover method that delegates to the
	* method of the same name on the list's selection model.
	* <p>
	* Refer to the documentation of the selection model class being used
	* for details on how values less than {@code 0} are handled.
	*
	* @param index0 the first index to remove from the selection
	* @param index1 the last index to remove from the selection
	* @see ListSelectionModel#removeSelectionInterval
	* @see DefaultListSelectionModel#removeSelectionInterval
	* @see #createSelectionModel
	* @see #setSelectionInterval
	* @see #addSelectionInterval
	*/
	public void removeSelectionInterval(int index0, int index1) {
	getSelectionModel().removeSelectionInterval(index0, index1);
	}


	/**
	* Sets the selection model's {@code valueIsAdjusting} property. When
	* {@code true}, upcoming changes to selection should be considered part
	* of a single change. This property is used internally and developers
	* typically need not call this method. For example, when the model is being
	* updated in response to a user drag, the value of the property is set
	* to {@code true} when the drag is initiated and set to {@code false}
	* when the drag is finished. This allows listeners to update only
	* when a change has been finalized, rather than handling all of the
	* intermediate values.
	* <p>
	* You may want to use this directly if making a series of changes
	* that should be considered part of a single change.
	* <p>
	* This is a cover method that delegates to the method of the same name on
	* the list's selection model. See the documentation for
	* {@link javax.swing.ListSelectionModel#setValueIsAdjusting} for
	* more details.
	*
	* @param b the new value for the property
	* @see ListSelectionModel#setValueIsAdjusting
	* @see javax.swing.event.ListSelectionEvent#getValueIsAdjusting
	* @see #getValueIsAdjusting
	*/
	public void setValueIsAdjusting(boolean b) {
	getSelectionModel().setValueIsAdjusting(b);
	}


	/**
	* Returns the value of the selection model's {@code isAdjusting} property.
	* <p>
	* This is a cover method that delegates to the method of the same name on
	* the list's selection model.
	*
	* @return the value of the selection model's {@code isAdjusting} property.
	*
	* @see #setValueIsAdjusting
	* @see ListSelectionModel#getValueIsAdjusting
	*/
	public boolean getValueIsAdjusting() {
	return getSelectionModel().getValueIsAdjusting();
	}


	/**
	* Returns an array of all of the selected indices, in increasing
	* order.
	*
	* @return all of the selected indices, in increasing order,
	* or an empty array if nothing is selected
	* @see #removeSelectionInterval
	* @see #addListSelectionListener
	*/
	@Transient
	public int[] getSelectedIndices() {
	ListSelectionModel sm = getSelectionModel();
	int iMin = sm.getMinSelectionIndex();
	int iMax = sm.getMaxSelectionIndex();

	if ((iMin < 0) \|\| (iMax < 0)) {
	return new int[0];
	}

	int[] rvTmp = new int[1+ (iMax - iMin)];
	int n = 0;
	for(int i = iMin; i <= iMax; i++) {
	if (sm.isSelectedIndex(i)) {
	rvTmp[n++] = i;
	}
	}
	int[] rv = new int[n];
	System.arraycopy(rvTmp, 0, rv, 0, n);
	return rv;
	}


	/**
	* Selects a single cell. Does nothing if the given index is greater
	* than or equal to the model size. This is a convenience method that uses
	* {@code setSelectionInterval} on the selection model. Refer to the
	* documentation for the selection model class being used for details on
	* how values less than {@code 0} are handled.
	*
	* @param index the index of the cell to select
	* @see ListSelectionModel#setSelectionInterval
	* @see #isSelectedIndex
	* @see #addListSelectionListener
	* @beaninfo
	* description: The index of the selected cell.
	*/
	public void setSelectedIndex(int index) {
	if (index >= getModel().getSize()) {
	return;
	}
	getSelectionModel().setSelectionInterval(index, index);
	}


	/**
	* Changes the selection to be the set of indices specified by the given
	* array. Indices greater than or equal to the model size are ignored.
	* This is a convenience method that clears the selection and then uses
	* {@code addSelectionInterval} on the selection model to add the indices.
	* Refer to the documentation of the selection model class being used for
	* details on how values less than {@code 0} are handled.
	*
	* @param indices an array of the indices of the cells to select,
	* {@code non-null}
	* @see ListSelectionModel#addSelectionInterval
	* @see #isSelectedIndex
	* @see #addListSelectionListener
	* @throws NullPointerException if the given array is {@code null}
	*/
	public void setSelectedIndices(int[] indices) {
	ListSelectionModel sm = getSelectionModel();
	sm.clearSelection();
	int size = getModel().getSize();
	for (int i : indices) {
	if (i < size) {
	sm.addSelectionInterval(i, i);
	}
	}
	}


	/**
	* Returns an array of all the selected values, in increasing order based
	* on their indices in the list.
	*
	* @return the selected values, or an empty array if nothing is selected
	* @see #isSelectedIndex
	* @see #getModel
	* @see #addListSelectionListener
	*
	* @deprecated As of JDK 1.7, replaced by {@link #getSelectedValuesList()}
	*/
	@Deprecated
	public Object[] getSelectedValues() {
	ListSelectionModel sm = getSelectionModel();
	ListModel<E> dm = getModel();

	int iMin = sm.getMinSelectionIndex();
	int iMax = sm.getMaxSelectionIndex();

	if ((iMin < 0) \|\| (iMax < 0)) {
	return new Object[0];
	}

	Object[] rvTmp = new Object[1+ (iMax - iMin)];
	int n = 0;
	for(int i = iMin; i <= iMax; i++) {
	if (sm.isSelectedIndex(i)) {
	rvTmp[n++] = dm.getElementAt(i);
	}
	}
	Object[] rv = new Object[n];
	System.arraycopy(rvTmp, 0, rv, 0, n);
	return rv;
	}

	/**
	* Returns a list of all the selected items, in increasing order based
	* on their indices in the list.
	*
	* @return the selected items, or an empty list if nothing is selected
	* @see #isSelectedIndex
	* @see #getModel
	* @see #addListSelectionListener
	*
	* @since 1.7
	*/
	public List<E> getSelectedValuesList() {
	ListSelectionModel sm = getSelectionModel();
	ListModel<E> dm = getModel();

	int iMin = sm.getMinSelectionIndex();
	int iMax = sm.getMaxSelectionIndex();

	if ((iMin < 0) \|\| (iMax < 0)) {
	return Collections.emptyList();
	}

	List<E> selectedItems = new ArrayList<E>();
	for(int i = iMin; i <= iMax; i++) {
	if (sm.isSelectedIndex(i)) {
	selectedItems.add(dm.getElementAt(i));
	}
	}
	return selectedItems;
	}


	/**
	* Returns the smallest selected cell index; <i>the selection</i> when only
	* a single item is selected in the list. When multiple items are selected,
	* it is simply the smallest selected index. Returns {@code -1} if there is
	* no selection.
	* <p>
	* This method is a cover that delegates to {@code getMinSelectionIndex}.
	*
	* @return the smallest selected cell index
	* @see #getMinSelectionIndex
	* @see #addListSelectionListener
	*/
	public int getSelectedIndex() {
	return getMinSelectionIndex();
	}


	/**
	* Returns the value for the smallest selected cell index;
	* <i>the selected value</i> when only a single item is selected in the
	* list. When multiple items are selected, it is simply the value for the
	* smallest selected index. Returns {@code null} if there is no selection.
	* <p>
	* This is a convenience method that simply returns the model value for
	* {@code getMinSelectionIndex}.
	*
	* @return the first selected value
	* @see #getMinSelectionIndex
	* @see #getModel
	* @see #addListSelectionListener
	*/
	public E getSelectedValue() {
	int i = getMinSelectionIndex();
	return (i == -1) ? null : getModel().getElementAt(i);
	}


	/**
	* Selects the specified object from the list.
	*
	* @param anObject the object to select
	* @param shouldScroll {@code true} if the list should scroll to display
	* the selected object, if one exists; otherwise {@code false}
	*/
	public void setSelectedValue(Object anObject,boolean shouldScroll) {
	if(anObject == null)
	setSelectedIndex(-1);
	else if(!anObject.equals(getSelectedValue())) {
	int i,c;
	ListModel<E> dm = getModel();
	for(i=0,c=dm.getSize();i<c;i++)
	if(anObject.equals(dm.getElementAt(i))){
	setSelectedIndex(i);
	if(shouldScroll)
	ensureIndexIsVisible(i);
	repaint(); / FIX-ME setSelectedIndex does not redraw all the time with the basic l&f/
	return;
	}
	setSelectedIndex(-1);
	}
	repaint(); / FIX-ME setSelectedIndex does not redraw all the time with the basic l&f/
	}



	/**
	* --- The Scrollable Implementation ---
	*/

	private void checkScrollableParameters(Rectangle visibleRect, int orientation) {
	if (visibleRect == null) {
	throw new IllegalArgumentException("visibleRect must be non-null");
	}
	switch (orientation) {
	case SwingConstants.VERTICAL:
	case SwingConstants.HORIZONTAL:
	break;
	default:
	throw new IllegalArgumentException("orientation must be one of: VERTICAL, HORIZONTAL");
	}
	}


	/**
	* Computes the size of viewport needed to display {@code visibleRowCount}
	* rows. The value returned by this method depends on the layout
	* orientation:
	* <p>
	* <b>{@code VERTICAL}:</b>
	* <br>
	* This is trivial if both {@code fixedCellWidth} and {@code fixedCellHeight}
	* have been set (either explicitly or by specifying a prototype cell value).
	* The width is simply the {@code fixedCellWidth} plus the list's horizontal
	* insets. The height is the {@code fixedCellHeight} multiplied by the
	* {@code visibleRowCount}, plus the list's vertical insets.
	* <p>
	* If either {@code fixedCellWidth} or {@code fixedCellHeight} haven't been
	* specified, heuristics are used. If the model is empty, the width is
	* the {@code fixedCellWidth}, if greater than {@code 0}, or a hard-coded
	* value of {@code 256}. The height is the {@code fixedCellHeight} multiplied
	* by {@code visibleRowCount}, if {@code fixedCellHeight} is greater than
	* {@code 0}, otherwise it is a hard-coded value of {@code 16} multiplied by
	* {@code visibleRowCount}.
	* <p>
	* If the model isn't empty, the width is the preferred size's width,
	* typically the width of the widest list element. The height is the
	* {@code fixedCellHeight} multiplied by the {@code visibleRowCount},
	* plus the list's vertical insets.
	* <p>
	* <b>{@code VERTICAL_WRAP} or {@code HORIZONTAL_WRAP}:</b>
	* <br>
	* This method simply returns the value from {@code getPreferredSize}.
	* The list's {@code ListUI} is expected to override {@code getPreferredSize}
	* to return an appropriate value.
	*
	* @return a dimension containing the size of the viewport needed
	* to display {@code visibleRowCount} rows
	* @see #getPreferredScrollableViewportSize
	* @see #setPrototypeCellValue
	*/
	public Dimension getPreferredScrollableViewportSize()
	{
	if (getLayoutOrientation() != VERTICAL) {
	return getPreferredSize();
	}
	Insets insets = getInsets();
	int dx = insets.left + insets.right;
	int dy = insets.top + insets.bottom;

	int visibleRowCount = getVisibleRowCount();
	int fixedCellWidth = getFixedCellWidth();
	int fixedCellHeight = getFixedCellHeight();

	if ((fixedCellWidth > 0) && (fixedCellHeight > 0)) {
	int width = fixedCellWidth + dx;
	int height = (visibleRowCount * fixedCellHeight) + dy;
	return new Dimension(width, height);
	}
	else if (getModel().getSize() > 0) {
	int width = getPreferredSize().width;
	int height;
	Rectangle r = getCellBounds(0, 0);
	if (r != null) {
	height = (visibleRowCount * r.height) + dy;
	}
	else {
	// Will only happen if UI null, shouldn't matter what we return
	height = 1;
	}
	return new Dimension(width, height);
	}
	else {
	fixedCellWidth = (fixedCellWidth > 0) ? fixedCellWidth : 256;
	fixedCellHeight = (fixedCellHeight > 0) ? fixedCellHeight : 16;
	return new Dimension(fixedCellWidth, fixedCellHeight * visibleRowCount);
	}
	}


	/**
	* Returns the distance to scroll to expose the next or previous
	* row (for vertical scrolling) or column (for horizontal scrolling).
	* <p>
	* For horizontal scrolling, if the layout orientation is {@code VERTICAL},
	* then the list's font size is returned (or {@code 1} if the font is
	* {@code null}).
	*
	* @param visibleRect the view area visible within the viewport
	* @param orientation {@code SwingConstants.HORIZONTAL} or
	* {@code SwingConstants.VERTICAL}
	* @param direction less or equal to zero to scroll up/back,
	* greater than zero for down/forward
	* @return the "unit" increment for scrolling in the specified direction;
	* always positive
	* @see #getScrollableBlockIncrement
	* @see Scrollable#getScrollableUnitIncrement
	* @throws IllegalArgumentException if {@code visibleRect} is {@code null}, or
	* {@code orientation} isn't one of {@code SwingConstants.VERTICAL} or
	* {@code SwingConstants.HORIZONTAL}
	*/
	public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction)
	{
	checkScrollableParameters(visibleRect, orientation);

	if (orientation == SwingConstants.VERTICAL) {
	int row = locationToIndex(visibleRect.getLocation());

	if (row == -1) {
	return 0;
	}
	else {
	/* Scroll Down */
	if (direction > 0) {
	Rectangle r = getCellBounds(row, row);
	return (r == null) ? 0 : r.height - (visibleRect.y - r.y);
	}
	/* Scroll Up */
	else {
	Rectangle r = getCellBounds(row, row);

	/* The first row is completely visible and it's row 0.
	* We're done.
	*/
	if ((r.y == visibleRect.y) && (row == 0)) {
	return 0;
	}
	/* The first row is completely visible, return the
	* height of the previous row or 0 if the first row
	* is the top row of the list.
	*/
	else if (r.y == visibleRect.y) {
	Point loc = r.getLocation();
	loc.y--;
	int prevIndex = locationToIndex(loc);
	Rectangle prevR = getCellBounds(prevIndex, prevIndex);

	if (prevR == null \|\| prevR.y >= r.y) {
	return 0;
	}
	return prevR.height;
	}
	/* The first row is partially visible, return the
	* height of hidden part.
	*/
	else {
	return visibleRect.y - r.y;
	}
	}
	}
	} else if (orientation == SwingConstants.HORIZONTAL &&
	getLayoutOrientation() != JList.VERTICAL) {
	boolean leftToRight = getComponentOrientation().isLeftToRight();
	int index;
	Point leadingPoint;

	if (leftToRight) {
	leadingPoint = visibleRect.getLocation();
	}
	else {
	leadingPoint = new Point(visibleRect.x + visibleRect.width -1,
	visibleRect.y);
	}
	index = locationToIndex(leadingPoint);

	if (index != -1) {
	Rectangle cellBounds = getCellBounds(index, index);
	if (cellBounds != null && cellBounds.contains(leadingPoint)) {
	int leadingVisibleEdge;
	int leadingCellEdge;

	if (leftToRight) {
	leadingVisibleEdge = visibleRect.x;
	leadingCellEdge = cellBounds.x;
	}
	else {
	leadingVisibleEdge = visibleRect.x + visibleRect.width;
	leadingCellEdge = cellBounds.x + cellBounds.width;
	}

	if (leadingCellEdge != leadingVisibleEdge) {
	if (direction < 0) {
	// Show remainder of leading cell
	return Math.abs(leadingVisibleEdge - leadingCellEdge);

	}
	else if (leftToRight) {
	// Hide rest of leading cell
	return leadingCellEdge + cellBounds.width - leadingVisibleEdge;
	}
	else {
	// Hide rest of leading cell
	return leadingVisibleEdge - cellBounds.x;
	}
	}
	// ASSUME: All cells are the same width
	return cellBounds.width;
	}
	}
	}
	Font f = getFont();
	return (f != null) ? f.getSize() : 1;
	}


	/**
	* Returns the distance to scroll to expose the next or previous block.
	* <p>
	* For vertical scrolling, the following rules are used:
	* <ul>
	* <li>if scrolling down, returns the distance to scroll so that the last
	* visible element becomes the first completely visible element
	* <li>if scrolling up, returns the distance to scroll so that the first
	* visible element becomes the last completely visible element
	* <li>returns {@code visibleRect.height} if the list is empty
	* </ul>
	* <p>
	* For horizontal scrolling, when the layout orientation is either
	* {@code VERTICAL_WRAP} or {@code HORIZONTAL_WRAP}:
	* <ul>
	* <li>if scrolling right, returns the distance to scroll so that the
	* last visible element becomes
	* the first completely visible element
	* <li>if scrolling left, returns the distance to scroll so that the first
	* visible element becomes the last completely visible element
	* <li>returns {@code visibleRect.width} if the list is empty
	* </ul>
	* <p>
	* For horizontal scrolling and {@code VERTICAL} orientation,
	* returns {@code visibleRect.width}.
	* <p>
	* Note that the value of {@code visibleRect} must be the equal to
	* {@code this.getVisibleRect()}.
	*
	* @param visibleRect the view area visible within the viewport
	* @param orientation {@code SwingConstants.HORIZONTAL} or
	* {@code SwingConstants.VERTICAL}
	* @param direction less or equal to zero to scroll up/back,
	* greater than zero for down/forward
	* @return the "block" increment for scrolling in the specified direction;
	* always positive
	* @see #getScrollableUnitIncrement
	* @see Scrollable#getScrollableBlockIncrement
	* @throws IllegalArgumentException if {@code visibleRect} is {@code null}, or
	* {@code orientation} isn't one of {@code SwingConstants.VERTICAL} or
	* {@code SwingConstants.HORIZONTAL}
	*/
	public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
	checkScrollableParameters(visibleRect, orientation);
	if (orientation == SwingConstants.VERTICAL) {
	int inc = visibleRect.height;
	/* Scroll Down */
	if (direction > 0) {
	// last cell is the lowest left cell
	int last = locationToIndex(new Point(visibleRect.x, visibleRect.y+visibleRect.height-1));
	if (last != -1) {
	Rectangle lastRect = getCellBounds(last,last);
	if (lastRect != null) {
	inc = lastRect.y - visibleRect.y;
	if ( (inc == 0) && (last < getModel().getSize()-1) ) {
	inc = lastRect.height;
	}
	}
	}
	}
	/* Scroll Up */
	else {
	int newFirst = locationToIndex(new Point(visibleRect.x, visibleRect.y-visibleRect.height));
	int first = getFirstVisibleIndex();
	if (newFirst != -1) {
	if (first == -1) {
	first = locationToIndex(visibleRect.getLocation());
	}
	Rectangle newFirstRect = getCellBounds(newFirst,newFirst);
	Rectangle firstRect = getCellBounds(first,first);
	if ((newFirstRect != null) && (firstRect!=null)) {
	while ( (newFirstRect.y + visibleRect.height <
	firstRect.y + firstRect.height) &&
	(newFirstRect.y < firstRect.y) ) {
	newFirst++;
	newFirstRect = getCellBounds(newFirst,newFirst);
	}
	inc = visibleRect.y - newFirstRect.y;
	if ( (inc <= 0) && (newFirstRect.y > 0)) {
	newFirst--;
	newFirstRect = getCellBounds(newFirst,newFirst);
	if (newFirstRect != null) {
	inc = visibleRect.y - newFirstRect.y;
	}
	}
	}
	}
	}
	return inc;
	}
	else if (orientation == SwingConstants.HORIZONTAL &&
	getLayoutOrientation() != JList.VERTICAL) {
	boolean leftToRight = getComponentOrientation().isLeftToRight();
	int inc = visibleRect.width;
	/* Scroll Right (in ltr mode) or Scroll Left (in rtl mode) */
	if (direction > 0) {
	// position is upper right if ltr, or upper left otherwise
	int x = visibleRect.x + (leftToRight ? (visibleRect.width - 1) : 0);
	int last = locationToIndex(new Point(x, visibleRect.y));

	if (last != -1) {
	Rectangle lastRect = getCellBounds(last,last);
	if (lastRect != null) {
	if (leftToRight) {
	inc = lastRect.x - visibleRect.x;
	} else {
	inc = visibleRect.x + visibleRect.width
	- (lastRect.x + lastRect.width);
	}
	if (inc < 0) {
	inc += lastRect.width;
	} else if ( (inc == 0) && (last < getModel().getSize()-1) ) {
	inc = lastRect.width;
	}
	}
	}
	}
	/* Scroll Left (in ltr mode) or Scroll Right (in rtl mode) */
	else {
	// position is upper left corner of the visibleRect shifted
	// left by the visibleRect.width if ltr, or upper right shifted
	// right by the visibleRect.width otherwise
	int x = visibleRect.x + (leftToRight
	? -visibleRect.width
	: visibleRect.width - 1 + visibleRect.width);
	int first = locationToIndex(new Point(x, visibleRect.y));

	if (first != -1) {
	Rectangle firstRect = getCellBounds(first,first);
	if (firstRect != null) {
	// the right of the first cell
	int firstRight = firstRect.x + firstRect.width;

	if (leftToRight) {
	if ((firstRect.x < visibleRect.x - visibleRect.width)
	&& (firstRight < visibleRect.x)) {
	inc = visibleRect.x - firstRight;
	} else {
	inc = visibleRect.x - firstRect.x;
	}
	} else {
	int visibleRight = visibleRect.x + visibleRect.width;

	if ((firstRight > visibleRight + visibleRect.width)
	&& (firstRect.x > visibleRight)) {
	inc = firstRect.x - visibleRight;
	} else {
	inc = firstRight - visibleRight;
	}
	}
	}
	}
	}
	return inc;
	}
	return visibleRect.width;
	}


	/**
	* Returns {@code true} if this {@code JList} is displayed in a
	* {@code JViewport} and the viewport is wider than the list's
	* preferred width, or if the layout orientation is {@code HORIZONTAL_WRAP}
	* and {@code visibleRowCount <= 0}; otherwise returns {@code false}.
	* <p>
	* If {@code false}, then don't track the viewport's width. This allows
	* horizontal scrolling if the {@code JViewport} is itself embedded in a
	* {@code JScrollPane}.
	*
	* @return whether or not an enclosing viewport should force the list's
	* width to match its own
	* @see Scrollable#getScrollableTracksViewportWidth
	*/
	public boolean getScrollableTracksViewportWidth() {
	if (getLayoutOrientation() == HORIZONTAL_WRAP &&
	getVisibleRowCount() <= 0) {
	return true;
	}
	Container parent = SwingUtilities.getUnwrappedParent(this);
	if (parent instanceof JViewport) {
	return parent.getWidth() > getPreferredSize().width;
	}
	return false;
	}

	/**
	* Returns {@code true} if this {@code JList} is displayed in a
	* {@code JViewport} and the viewport is taller than the list's
	* preferred height, or if the layout orientation is {@code VERTICAL_WRAP}
	* and {@code visibleRowCount <= 0}; otherwise returns {@code false}.
	* <p>
	* If {@code false}, then don't track the viewport's height. This allows
	* vertical scrolling if the {@code JViewport} is itself embedded in a
	* {@code JScrollPane}.
	*
	* @return whether or not an enclosing viewport should force the list's
	* height to match its own
	* @see Scrollable#getScrollableTracksViewportHeight
	*/
	public boolean getScrollableTracksViewportHeight() {
	if (getLayoutOrientation() == VERTICAL_WRAP &&
	getVisibleRowCount() <= 0) {
	return true;
	}
	Container parent = SwingUtilities.getUnwrappedParent(this);
	if (parent instanceof JViewport) {
	return parent.getHeight() > getPreferredSize().height;
	}
	return false;
	}


	/*
	* See {@code readObject} and {@code writeObject} in {@code JComponent}
	* 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);
	}
	}
	}


	/**
	* Returns a {@code String} representation of this {@code JList}.
	* This method is intended to be used only for debugging purposes,
	* and the content and format of the returned {@code String} may vary
	* between implementations. The returned {@code String} may be empty,
	* but may not be {@code null}.
	*
	* @return a {@code String} representation of this {@code JList}.
	*/
	protected String paramString() {
	String selectionForegroundString = (selectionForeground != null ?
	selectionForeground.toString() :
	"");
	String selectionBackgroundString = (selectionBackground != null ?
	selectionBackground.toString() :
	"");

	return super.paramString() +
	",fixedCellHeight=" + fixedCellHeight +
	",fixedCellWidth=" + fixedCellWidth +
	",horizontalScrollIncrement=" + horizontalScrollIncrement +
	",selectionBackground=" + selectionBackgroundString +
	",selectionForeground=" + selectionForegroundString +
	",visibleRowCount=" + visibleRowCount +
	",layoutOrientation=" + layoutOrientation;
	}


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

	/**
	* Gets the {@code AccessibleContext} associated with this {@code JList}.
	* For {@code JList}, the {@code AccessibleContext} takes the form of an
	* {@code AccessibleJList}.
	* <p>
	* A new {@code AccessibleJList} instance is created if necessary.
	*
	* @return an {@code AccessibleJList} that serves as the
	* {@code AccessibleContext} of this {@code JList}
	*/
	public AccessibleContext getAccessibleContext() {
	if (accessibleContext == null) {
	accessibleContext = new AccessibleJList();
	}
	return accessibleContext;
	}

	/**
	* This class implements accessibility support for the
	* {@code JList} class. It provides an implementation of the
	* Java Accessibility API appropriate to list 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 AccessibleJList extends AccessibleJComponent
	implements AccessibleSelection, PropertyChangeListener,
	ListSelectionListener, ListDataListener {

	int leadSelectionIndex;

	public AccessibleJList() {
	super();
	JList.this.addPropertyChangeListener(this);
	JList.this.getSelectionModel().addListSelectionListener(this);
	JList.this.getModel().addListDataListener(this);
	leadSelectionIndex = JList.this.getLeadSelectionIndex();
	}

	/**
	* Property Change Listener change method. Used to track changes
	* to the DataModel and ListSelectionModel, in order to re-set
	* listeners to those for reporting changes there via the Accessibility
	* PropertyChange mechanism.
	*
	* @param e PropertyChangeEvent
	*/
	public void propertyChange(PropertyChangeEvent e) {
	String name = e.getPropertyName();
	Object oldValue = e.getOldValue();
	Object newValue = e.getNewValue();

	// re-set listData listeners
	if (name.compareTo("model") == 0) {

	if (oldValue != null && oldValue instanceof ListModel) {
	((ListModel) oldValue).removeListDataListener(this);
	}
	if (newValue != null && newValue instanceof ListModel) {
	((ListModel) newValue).addListDataListener(this);
	}

	// re-set listSelectionModel listeners
	} else if (name.compareTo("selectionModel") == 0) {

	if (oldValue != null && oldValue instanceof ListSelectionModel) {
	((ListSelectionModel) oldValue).removeListSelectionListener(this);
	}
	if (newValue != null && newValue instanceof ListSelectionModel) {
	((ListSelectionModel) newValue).addListSelectionListener(this);
	}

	firePropertyChange(
	AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY,
	Boolean.valueOf(false), Boolean.valueOf(true));
	}
	}

	/**
	* List Selection Listener value change method. Used to fire
	* the property change
	*
	* @param e ListSelectionEvent
	*
	*/
	public void valueChanged(ListSelectionEvent e) {
	int oldLeadSelectionIndex = leadSelectionIndex;
	leadSelectionIndex = JList.this.getLeadSelectionIndex();
	if (oldLeadSelectionIndex != leadSelectionIndex) {
	Accessible oldLS, newLS;
	oldLS = (oldLeadSelectionIndex >= 0)
	? getAccessibleChild(oldLeadSelectionIndex)
	: null;
	newLS = (leadSelectionIndex >= 0)
	? getAccessibleChild(leadSelectionIndex)
	: null;
	firePropertyChange(AccessibleContext.ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY,
	oldLS, newLS);
	}

	firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	Boolean.valueOf(false), Boolean.valueOf(true));
	firePropertyChange(AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY,
	Boolean.valueOf(false), Boolean.valueOf(true));

	// Process the State changes for Multiselectable
	AccessibleStateSet s = getAccessibleStateSet();
	ListSelectionModel lsm = JList.this.getSelectionModel();
	if (lsm.getSelectionMode() != ListSelectionModel.SINGLE_SELECTION) {
	if (!s.contains(AccessibleState.MULTISELECTABLE)) {
	s.add(AccessibleState.MULTISELECTABLE);
	firePropertyChange(AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.MULTISELECTABLE);
	}
	} else {
	if (s.contains(AccessibleState.MULTISELECTABLE)) {
	s.remove(AccessibleState.MULTISELECTABLE);
	firePropertyChange(AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.MULTISELECTABLE, null);
	}
	}
	}

	/**
	* List Data Listener interval added method. Used to fire the visible data property change
	*
	* @param e ListDataEvent
	*
	*/
	public void intervalAdded(ListDataEvent e) {
	firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	Boolean.valueOf(false), Boolean.valueOf(true));
	}

	/**
	* List Data Listener interval removed method. Used to fire the visible data property change
	*
	* @param e ListDataEvent
	*
	*/
	public void intervalRemoved(ListDataEvent e) {
	firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	Boolean.valueOf(false), Boolean.valueOf(true));
	}

	/**
	* List Data Listener contents changed method. Used to fire the visible data property change
	*
	* @param e ListDataEvent
	*
	*/
	public void contentsChanged(ListDataEvent e) {
	firePropertyChange(AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	Boolean.valueOf(false), Boolean.valueOf(true));
	}

	// AccessibleContext methods

	/**
	* Get the state set of this object.
	*
	* @return an instance of AccessibleState containing the current state
	* of the object
	* @see AccessibleState
	*/
	public AccessibleStateSet getAccessibleStateSet() {
	AccessibleStateSet states = super.getAccessibleStateSet();
	if (selectionModel.getSelectionMode() !=
	ListSelectionModel.SINGLE_SELECTION) {
	states.add(AccessibleState.MULTISELECTABLE);
	}
	return states;
	}

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

	/**
	* Returns the <code>Accessible</code> child contained at
	* the local coordinate <code>Point</code>, if one exists.
	* Otherwise returns <code>null</code>.
	*
	* @return the <code>Accessible</code> at the specified
	* location, if it exists
	*/
	public Accessible getAccessibleAt(Point p) {
	int i = locationToIndex(p);
	if (i >= 0) {
	return new ActionableAccessibleJListChild(JList.this, i);
	} else {
	return null;
	}
	}

	/**
	* 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 getModel().getSize();
	}

	/**
	* Return 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) {
	if (i >= getModel().getSize()) {
	return null;
	} else {
	return new ActionableAccessibleJListChild(JList.this, i);
	}
	}

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


	// AccessibleSelection methods

	/**
	* Returns the number of items currently selected.
	* If no items are selected, the return value will be 0.
	*
	* @return the number of items currently selected.
	*/
	public int getAccessibleSelectionCount() {
	return JList.this.getSelectedIndices().length;
	}

	/**
	* Returns an Accessible representing the specified selected item
	* in the object. If there isn't a selection, or there are
	* fewer items selected than the integer passed in, the return
	* value will be <code>null</code>.
	*
	* @param i the zero-based index of selected items
	* @return an Accessible containing the selected item
	*/
	public Accessible getAccessibleSelection(int i) {
	int len = getAccessibleSelectionCount();
	if (i < 0 \|\| i >= len) {
	return null;
	} else {
	return getAccessibleChild(JList.this.getSelectedIndices()[i]);
	}
	}

	/**
	* Returns true if the current child of this object is selected.
	*
	* @param i the zero-based index of the child in this Accessible
	* object.
	* @see AccessibleContext#getAccessibleChild
	*/
	public boolean isAccessibleChildSelected(int i) {
	return isSelectedIndex(i);
	}

	/**
	* Adds the specified selected item in the object to the object's
	* selection. If the object supports multiple selections,
	* the specified item is added to any existing selection, otherwise
	* it replaces any existing selection in the object. If the
	* specified item is already selected, this method has no effect.
	*
	* @param i the zero-based index of selectable items
	*/
	public void addAccessibleSelection(int i) {
	JList.this.addSelectionInterval(i, i);
	}

	/**
	* Removes the specified selected item in the object from the object's
	* selection. If the specified item isn't currently selected, this
	* method has no effect.
	*
	* @param i the zero-based index of selectable items
	*/
	public void removeAccessibleSelection(int i) {
	JList.this.removeSelectionInterval(i, i);
	}

	/**
	* Clears the selection in the object, so that nothing in the
	* object is selected.
	*/
	public void clearAccessibleSelection() {
	JList.this.clearSelection();
	}

	/**
	* Causes every selected item in the object to be selected
	* if the object supports multiple selections.
	*/
	public void selectAllAccessibleSelection() {
	JList.this.addSelectionInterval(0, getAccessibleChildrenCount() -1);
	}

	/**
	* This class implements accessibility support appropriate
	* for list children.
	*/
	protected class AccessibleJListChild extends AccessibleContext
	implements Accessible, AccessibleComponent {
	private JList<E> parent = null;
	int indexInParent;
	private Component component = null;
	private AccessibleContext accessibleContext = null;
	private ListModel<E> listModel;
	private ListCellRenderer<? super E> cellRenderer = null;

	public AccessibleJListChild(JList<E> parent, int indexInParent) {
	this.parent = parent;
	this.setAccessibleParent(parent);
	this.indexInParent = indexInParent;
	if (parent != null) {
	listModel = parent.getModel();
	cellRenderer = parent.getCellRenderer();
	}
	}

	private Component getCurrentComponent() {
	return getComponentAtIndex(indexInParent);
	}

	AccessibleContext getCurrentAccessibleContext() {
	Component c = getComponentAtIndex(indexInParent);
	if (c instanceof Accessible) {
	return c.getAccessibleContext();
	} else {
	return null;
	}
	}

	private Component getComponentAtIndex(int index) {
	if (index < 0 \|\| index >= listModel.getSize()) {
	return null;
	}
	if ((parent != null)
	&& (listModel != null)
	&& cellRenderer != null) {
	E value = listModel.getElementAt(index);
	boolean isSelected = parent.isSelectedIndex(index);
	boolean isFocussed = parent.isFocusOwner()
	&& (index == parent.getLeadSelectionIndex());
	return cellRenderer.getListCellRendererComponent(
	parent,
	value,
	index,
	isSelected,
	isFocussed);
	} else {
	return null;
	}
	}


	// Accessible Methods
	/**
	* Get the AccessibleContext for this object. In the
	* implementation of the Java Accessibility API for this class,
	* returns this object, which is its own AccessibleContext.
	*
	* @return this object
	*/
	public AccessibleContext getAccessibleContext() {
	return this;
	}


	// AccessibleContext methods

	public String getAccessibleName() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	return ac.getAccessibleName();
	} else {
	return null;
	}
	}

	public void setAccessibleName(String s) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	ac.setAccessibleName(s);
	}
	}

	public String getAccessibleDescription() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	return ac.getAccessibleDescription();
	} else {
	return null;
	}
	}

	public void setAccessibleDescription(String s) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	ac.setAccessibleDescription(s);
	}
	}

	public AccessibleRole getAccessibleRole() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	return ac.getAccessibleRole();
	} else {
	return null;
	}
	}

	public AccessibleStateSet getAccessibleStateSet() {
	AccessibleContext ac = getCurrentAccessibleContext();
	AccessibleStateSet s;
	if (ac != null) {
	s = ac.getAccessibleStateSet();
	} else {
	s = new AccessibleStateSet();
	}

	s.add(AccessibleState.SELECTABLE);
	if (parent.isFocusOwner()
	&& (indexInParent == parent.getLeadSelectionIndex())) {
	s.add(AccessibleState.ACTIVE);
	}
	if (parent.isSelectedIndex(indexInParent)) {
	s.add(AccessibleState.SELECTED);
	}
	if (this.isShowing()) {
	s.add(AccessibleState.SHOWING);
	} else if (s.contains(AccessibleState.SHOWING)) {
	s.remove(AccessibleState.SHOWING);
	}
	if (this.isVisible()) {
	s.add(AccessibleState.VISIBLE);
	} else if (s.contains(AccessibleState.VISIBLE)) {
	s.remove(AccessibleState.VISIBLE);
	}
	s.add(AccessibleState.TRANSIENT); // cell-rendered
	return s;
	}

	public int getAccessibleIndexInParent() {
	return indexInParent;
	}

	public int getAccessibleChildrenCount() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	return ac.getAccessibleChildrenCount();
	} else {
	return 0;
	}
	}

	public Accessible getAccessibleChild(int i) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	Accessible accessibleChild = ac.getAccessibleChild(i);
	ac.setAccessibleParent(this);
	return accessibleChild;
	} else {
	return null;
	}
	}

	public Locale getLocale() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	return ac.getLocale();
	} else {
	return null;
	}
	}

	public void addPropertyChangeListener(PropertyChangeListener l) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	ac.addPropertyChangeListener(l);
	}
	}

	public void removePropertyChangeListener(PropertyChangeListener l) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	ac.removePropertyChangeListener(l);
	}
	}

	/**
	* Get the AccessibleComponent associated with this object. In the
	* implementation of the Java Accessibility API for this class,
	* return this object, which is responsible for implementing the
	* AccessibleComponent interface on behalf of itself.
	*
	* @return this object
	*/
	public AccessibleComponent getAccessibleComponent() {
	return this; // to override getBounds()
	}

	public AccessibleSelection getAccessibleSelection() {
	AccessibleContext ac = getCurrentAccessibleContext();
	return ac != null ? ac.getAccessibleSelection() : null;
	}

	public AccessibleText getAccessibleText() {
	AccessibleContext ac = getCurrentAccessibleContext();
	return ac != null ? ac.getAccessibleText() : null;
	}

	public AccessibleValue getAccessibleValue() {
	AccessibleContext ac = getCurrentAccessibleContext();
	return ac != null ? ac.getAccessibleValue() : null;
	}


	// AccessibleComponent methods

	public Color getBackground() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).getBackground();
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	return c.getBackground();
	} else {
	return null;
	}
	}
	}

	public void setBackground(Color c) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).setBackground(c);
	} else {
	Component cp = getCurrentComponent();
	if (cp != null) {
	cp.setBackground(c);
	}
	}
	}

	public Color getForeground() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).getForeground();
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	return c.getForeground();
	} else {
	return null;
	}
	}
	}

	public void setForeground(Color c) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).setForeground(c);
	} else {
	Component cp = getCurrentComponent();
	if (cp != null) {
	cp.setForeground(c);
	}
	}
	}

	public Cursor getCursor() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).getCursor();
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	return c.getCursor();
	} else {
	Accessible ap = getAccessibleParent();
	if (ap instanceof AccessibleComponent) {
	return ((AccessibleComponent) ap).getCursor();
	} else {
	return null;
	}
	}
	}
	}

	public void setCursor(Cursor c) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).setCursor(c);
	} else {
	Component cp = getCurrentComponent();
	if (cp != null) {
	cp.setCursor(c);
	}
	}
	}

	public Font getFont() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).getFont();
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	return c.getFont();
	} else {
	return null;
	}
	}
	}

	public void setFont(Font f) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).setFont(f);
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	c.setFont(f);
	}
	}
	}

	public FontMetrics getFontMetrics(Font f) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).getFontMetrics(f);
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	return c.getFontMetrics(f);
	} else {
	return null;
	}
	}
	}

	public boolean isEnabled() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).isEnabled();
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	return c.isEnabled();
	} else {
	return false;
	}
	}
	}

	public void setEnabled(boolean b) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).setEnabled(b);
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	c.setEnabled(b);
	}
	}
	}

	public boolean isVisible() {
	int fi = parent.getFirstVisibleIndex();
	int li = parent.getLastVisibleIndex();
	// The UI incorrectly returns a -1 for the last
	// visible index if the list is smaller than the
	// viewport size.
	if (li == -1) {
	li = parent.getModel().getSize() - 1;
	}
	return ((indexInParent >= fi)
	&& (indexInParent <= li));
	}

	public void setVisible(boolean b) {
	}

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

	public boolean contains(Point p) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	Rectangle r = ((AccessibleComponent) ac).getBounds();
	return r.contains(p);
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	Rectangle r = c.getBounds();
	return r.contains(p);
	} else {
	return getBounds().contains(p);
	}
	}
	}

	public Point getLocationOnScreen() {
	if (parent != null) {
	Point listLocation;
	try {
	listLocation = parent.getLocationOnScreen();
	} catch (IllegalComponentStateException e) {
	// This can happen if the component isn't visisble
	return null;
	}
	Point componentLocation = parent.indexToLocation(indexInParent);
	if (componentLocation != null) {
	componentLocation.translate(listLocation.x, listLocation.y);
	return componentLocation;
	} else {
	return null;
	}
	} else {
	return null;
	}
	}

	public Point getLocation() {
	if (parent != null) {
	return parent.indexToLocation(indexInParent);
	} else {
	return null;
	}
	}

	public void setLocation(Point p) {
	if ((parent != null) && (parent.contains(p))) {
	ensureIndexIsVisible(indexInParent);
	}
	}

	public Rectangle getBounds() {
	if (parent != null) {
	return parent.getCellBounds(indexInParent,indexInParent);
	} else {
	return null;
	}
	}

	public void setBounds(Rectangle r) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).setBounds(r);
	}
	}

	public Dimension getSize() {
	Rectangle cellBounds = this.getBounds();
	if (cellBounds != null) {
	return cellBounds.getSize();
	} else {
	return null;
	}
	}

	public void setSize (Dimension d) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).setSize(d);
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	c.setSize(d);
	}
	}
	}

	public Accessible getAccessibleAt(Point p) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).getAccessibleAt(p);
	} else {
	return null;
	}
	}

	public boolean isFocusTraversable() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	return ((AccessibleComponent) ac).isFocusTraversable();
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	return c.isFocusTraversable();
	} else {
	return false;
	}
	}
	}

	public void requestFocus() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).requestFocus();
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	c.requestFocus();
	}
	}
	}

	public void addFocusListener(FocusListener l) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).addFocusListener(l);
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	c.addFocusListener(l);
	}
	}
	}

	public void removeFocusListener(FocusListener l) {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac instanceof AccessibleComponent) {
	((AccessibleComponent) ac).removeFocusListener(l);
	} else {
	Component c = getCurrentComponent();
	if (c != null) {
	c.removeFocusListener(l);
	}
	}
	}

	// TIGER - 4733624
	/**
	* Returns the icon for the element renderer, as the only item
	* of an array of <code>AccessibleIcon</code>s or a <code>null</code> array
	* if the renderer component contains no icons.
	*
	* @return an array containing the accessible icon
	* or a <code>null</code> array if none
	* @since 1.3
	*/
	public AccessibleIcon [] getAccessibleIcon() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac != null) {
	return ac.getAccessibleIcon();
	} else {
	return null;
	}
	}

	} // inner class AccessibleJListChild

	private class ActionableAccessibleJListChild
	extends AccessibleJListChild
	implements AccessibleAction {

	ActionableAccessibleJListChild(JList<E> parent, int indexInParent) {
	super(parent, indexInParent);
	}

	@Override
	public AccessibleAction getAccessibleAction() {
	AccessibleContext ac = getCurrentAccessibleContext();
	if (ac == null) {
	return null;
	} else {
	AccessibleAction aa = ac.getAccessibleAction();
	if (aa != null) {
	return aa;
	} else {
	return this;
	}
	}
	}

	@Override
	public boolean doAccessibleAction(int i) {
	if (i == 0) {
	JList.this.setSelectedIndex(indexInParent);
	return true;
	} else {
	return false;
	}
	}

	@Override
	public String getAccessibleActionDescription(int i) {
	if (i == 0) {
	return UIManager.getString("AbstractButton.clickText");
	} else {
	return null;
	}
	}

	@Override
	public int getAccessibleActionCount() {
	return 1;
	}

	} // inner class ActionableAccessibleJListChild

	} // inner class AccessibleJList
	}

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