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	/*
	* Copyright (c) 1997, 2015, 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.awt.image.*;
	import java.text.*;
	import java.awt.geom.*;
	import java.beans.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;
	import java.beans.Transient;
	import java.util.Enumeration;
	import java.util.Vector;
	import java.io.Serializable;
	import javax.swing.event.*;
	import javax.swing.border.*;
	import javax.swing.plaf.*;
	import javax.accessibility.*;
	import javax.swing.text.*;
	import javax.swing.text.html.*;
	import javax.swing.plaf.basic.*;
	import java.util.*;

	/**
	* Defines common behaviors for buttons and menu items.
	* <p>
	* Buttons can be configured, and to some degree controlled, by
	* <code><a href="Action.html">Action</a></code>s. Using an
	* <code>Action</code> with a button has many benefits beyond directly
	* configuring a button. Refer to <a href="Action.html#buttonActions">
	* Swing Components Supporting <code>Action</code></a> for more
	* details, and you can find more information in <a
	* href="https://docs.oracle.com/javase/tutorial/uiswing/misc/action.html">How
	* to Use Actions</a>, a section in <em>The Java Tutorial</em>.
	* <p>
	* For further information see
	* <a
	href="https://docs.oracle.com/javase/tutorial/uiswing/components/button.html">How to Use Buttons, Check Boxes, and Radio Buttons</a>,
	* a section in <em>The Java Tutorial</em>.
	* <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}.
	*
	* @author Jeff Dinkins
	*/
	public abstract class AbstractButton extends JComponent implements ItemSelectable, SwingConstants {

	// *********************************
	// ***** Button properties *****
	// *********************************

	/** Identifies a change in the button model. */
	public static final String MODEL_CHANGED_PROPERTY = "model";
	/** Identifies a change in the button's text. */
	public static final String TEXT_CHANGED_PROPERTY = "text";
	/** Identifies a change to the button's mnemonic. */
	public static final String MNEMONIC_CHANGED_PROPERTY = "mnemonic";

	// Text positioning and alignment
	/** Identifies a change in the button's margins. */
	public static final String MARGIN_CHANGED_PROPERTY = "margin";
	/** Identifies a change in the button's vertical alignment. */
	public static final String VERTICAL_ALIGNMENT_CHANGED_PROPERTY = "verticalAlignment";
	/** Identifies a change in the button's horizontal alignment. */
	public static final String HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY = "horizontalAlignment";

	/** Identifies a change in the button's vertical text position. */
	public static final String VERTICAL_TEXT_POSITION_CHANGED_PROPERTY = "verticalTextPosition";
	/** Identifies a change in the button's horizontal text position. */
	public static final String HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY = "horizontalTextPosition";

	// Paint options
	/**
	* Identifies a change to having the border drawn,
	* or having it not drawn.
	*/
	public static final String BORDER_PAINTED_CHANGED_PROPERTY = "borderPainted";
	/**
	* Identifies a change to having the border highlighted when focused,
	* or not.
	*/
	public static final String FOCUS_PAINTED_CHANGED_PROPERTY = "focusPainted";
	/**
	* Identifies a change from rollover enabled to disabled or back
	* to enabled.
	*/
	public static final String ROLLOVER_ENABLED_CHANGED_PROPERTY = "rolloverEnabled";
	/**
	* Identifies a change to having the button paint the content area.
	*/
	public static final String CONTENT_AREA_FILLED_CHANGED_PROPERTY = "contentAreaFilled";

	// Icons
	/** Identifies a change to the icon that represents the button. */
	public static final String ICON_CHANGED_PROPERTY = "icon";

	/**
	* Identifies a change to the icon used when the button has been
	* pressed.
	*/
	public static final String PRESSED_ICON_CHANGED_PROPERTY = "pressedIcon";
	/**
	* Identifies a change to the icon used when the button has
	* been selected.
	*/
	public static final String SELECTED_ICON_CHANGED_PROPERTY = "selectedIcon";

	/**
	* Identifies a change to the icon used when the cursor is over
	* the button.
	*/
	public static final String ROLLOVER_ICON_CHANGED_PROPERTY = "rolloverIcon";
	/**
	* Identifies a change to the icon used when the cursor is
	* over the button and it has been selected.
	*/
	public static final String ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY = "rolloverSelectedIcon";

	/**
	* Identifies a change to the icon used when the button has
	* been disabled.
	*/
	public static final String DISABLED_ICON_CHANGED_PROPERTY = "disabledIcon";
	/**
	* Identifies a change to the icon used when the button has been
	* disabled and selected.
	*/
	public static final String DISABLED_SELECTED_ICON_CHANGED_PROPERTY = "disabledSelectedIcon";


	/** The data model that determines the button's state. */
	protected ButtonModel model = null;

	private String text = ""; // for BeanBox
	private Insets margin = null;
	private Insets defaultMargin = null;

	// Button icons
	// PENDING(jeff) - hold icons in an array
	private Icon defaultIcon = null;
	private Icon pressedIcon = null;
	private Icon disabledIcon = null;

	private Icon selectedIcon = null;
	private Icon disabledSelectedIcon = null;

	private Icon rolloverIcon = null;
	private Icon rolloverSelectedIcon = null;

	// Display properties
	private boolean paintBorder = true;
	private boolean paintFocus = true;
	private boolean rolloverEnabled = false;
	private boolean contentAreaFilled = true;

	// Icon/Label Alignment
	private int verticalAlignment = CENTER;
	private int horizontalAlignment = CENTER;

	private int verticalTextPosition = CENTER;
	private int horizontalTextPosition = TRAILING;

	private int iconTextGap = 4;

	private int mnemonic;
	private int mnemonicIndex = -1;

	private long multiClickThreshhold = 0;

	private boolean borderPaintedSet = false;
	private boolean rolloverEnabledSet = false;
	private boolean iconTextGapSet = false;
	private boolean contentAreaFilledSet = false;

	// Whether or not we've set the LayoutManager.
	private boolean setLayout = false;

	// This is only used by JButton, promoted to avoid an extra
	// boolean field in JButton
	boolean defaultCapable = true;

	/**
	* Combined listeners: ActionListener, ChangeListener, ItemListener.
	*/
	private Handler handler;

	/**
	* The button model's <code>changeListener</code>.
	*/
	protected ChangeListener changeListener = null;
	/**
	* The button model's <code>ActionListener</code>.
	*/
	protected ActionListener actionListener = null;
	/**
	* The button model's <code>ItemListener</code>.
	*/
	protected ItemListener itemListener = null;

	/**
	* Only one <code>ChangeEvent</code> is needed per button
	* instance since the
	* event's only state is the source property. The source of events
	* generated is always "this".
	*/
	protected transient ChangeEvent changeEvent;

	private boolean hideActionText = false;

	/**
	* Sets the <code>hideActionText</code> property, which determines
	* whether the button displays text from the <code>Action</code>.
	* This is useful only if an <code>Action</code> has been
	* installed on the button.
	*
	* @param hideActionText <code>true</code> if the button's
	* <code>text</code> property should not reflect
	* that of the <code>Action</code>; the default is
	* <code>false</code>
	* @see <a href="Action.html#buttonActions">Swing Components Supporting
	* <code>Action</code></a>
	* @since 1.6
	* @beaninfo
	* bound: true
	* expert: true
	* description: Whether the text of the button should come from
	* the <code>Action</code>.
	*/
	public void setHideActionText(boolean hideActionText) {
	if (hideActionText != this.hideActionText) {
	this.hideActionText = hideActionText;
	if (getAction() != null) {
	setTextFromAction(getAction(), false);
	}
	firePropertyChange("hideActionText", !hideActionText,
	hideActionText);
	}
	}

	/**
	* Returns the value of the <code>hideActionText</code> property, which
	* determines whether the button displays text from the
	* <code>Action</code>. This is useful only if an <code>Action</code>
	* has been installed on the button.
	*
	* @return <code>true</code> if the button's <code>text</code>
	* property should not reflect that of the
	* <code>Action</code>; the default is <code>false</code>
	* @since 1.6
	*/
	public boolean getHideActionText() {
	return hideActionText;
	}

	/**
	* Returns the button's text.
	* @return the buttons text
	* @see #setText
	*/
	public String getText() {
	return text;
	}

	/**
	* Sets the button's text.
	* @param text the string used to set the text
	* @see #getText
	* @beaninfo
	* bound: true
	* preferred: true
	* attribute: visualUpdate true
	* description: The button's text.
	*/
	public void setText(String text) {
	String oldValue = this.text;
	this.text = text;
	firePropertyChange(TEXT_CHANGED_PROPERTY, oldValue, text);
	updateDisplayedMnemonicIndex(text, getMnemonic());

	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, text);
	}
	if (text == null \|\| oldValue == null \|\| !text.equals(oldValue)) {
	revalidate();
	repaint();
	}
	}


	/**
	* Returns the state of the button. True if the
	* toggle button is selected, false if it's not.
	* @return true if the toggle button is selected, otherwise false
	*/
	public boolean isSelected() {
	return model.isSelected();
	}

	/**
	* Sets the state of the button. Note that this method does not
	* trigger an <code>actionEvent</code>.
	* Call <code>doClick</code> to perform a programmatic action change.
	*
	* @param b true if the button is selected, otherwise false
	*/
	public void setSelected(boolean b) {
	boolean oldValue = isSelected();

	// TIGER - 4840653
	// Removed code which fired an AccessibleState.SELECTED
	// PropertyChangeEvent since this resulted in two
	// identical events being fired since
	// AbstractButton.fireItemStateChanged also fires the
	// same event. This caused screen readers to speak the
	// name of the item twice.

	model.setSelected(b);
	}

	/**
	* Programmatically perform a "click". This does the same
	* thing as if the user had pressed and released the button.
	*/
	public void doClick() {
	doClick(68);
	}

	/**
	* Programmatically perform a "click". This does the same
	* thing as if the user had pressed and released the button.
	* The button stays visually "pressed" for <code>pressTime</code>
	* milliseconds.
	*
	* @param pressTime the time to "hold down" the button, in milliseconds
	*/
	public void doClick(int pressTime) {
	Dimension size = getSize();
	model.setArmed(true);
	model.setPressed(true);
	paintImmediately(new Rectangle(0,0, size.width, size.height));
	try {
	Thread.currentThread().sleep(pressTime);
	} catch(InterruptedException ie) {
	}
	model.setPressed(false);
	model.setArmed(false);
	}

	/**
	* Sets space for margin between the button's border and
	* the label. Setting to <code>null</code> will cause the button to
	* use the default margin. The button's default <code>Border</code>
	* object will use this value to create the proper margin.
	* However, if a non-default border is set on the button,
	* it is that <code>Border</code> object's responsibility to create the
	* appropriate margin space (else this property will
	* effectively be ignored).
	*
	* @param m the space between the border and the label
	*
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The space between the button's border and the label.
	*/
	public void setMargin(Insets m) {
	// Cache the old margin if it comes from the UI
	if(m instanceof UIResource) {
	defaultMargin = m;
	} else if(margin instanceof UIResource) {
	defaultMargin = margin;
	}

	// If the client passes in a null insets, restore the margin
	// from the UI if possible
	if(m == null && defaultMargin != null) {
	m = defaultMargin;
	}

	Insets old = margin;
	margin = m;
	firePropertyChange(MARGIN_CHANGED_PROPERTY, old, m);
	if (old == null \|\| !old.equals(m)) {
	revalidate();
	repaint();
	}
	}

	/**
	* Returns the margin between the button's border and
	* the label.
	*
	* @return an <code>Insets</code> object specifying the margin
	* between the botton's border and the label
	* @see #setMargin
	*/
	public Insets getMargin() {
	return (margin == null) ? null : (Insets) margin.clone();
	}

	/**
	* Returns the default icon.
	* @return the default <code>Icon</code>
	* @see #setIcon
	*/
	public Icon getIcon() {
	return defaultIcon;
	}

	/**
	* Sets the button's default icon. This icon is
	* also used as the "pressed" and "disabled" icon if
	* there is no explicitly set pressed icon.
	*
	* @param defaultIcon the icon used as the default image
	* @see #getIcon
	* @see #setPressedIcon
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The button's default icon
	*/
	public void setIcon(Icon defaultIcon) {
	Icon oldValue = this.defaultIcon;
	this.defaultIcon = defaultIcon;

	/* If the default icon has really changed and we had
	* generated the disabled icon for this component,
	* (i.e. setDisabledIcon() was never called) then
	* clear the disabledIcon field.
	*/
	if (defaultIcon != oldValue && (disabledIcon instanceof UIResource)) {
	disabledIcon = null;
	}

	firePropertyChange(ICON_CHANGED_PROPERTY, oldValue, defaultIcon);
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, defaultIcon);
	}
	if (defaultIcon != oldValue) {
	if (defaultIcon == null \|\| oldValue == null \|\|
	defaultIcon.getIconWidth() != oldValue.getIconWidth() \|\|
	defaultIcon.getIconHeight() != oldValue.getIconHeight()) {
	revalidate();
	}
	repaint();
	}
	}

	/**
	* Returns the pressed icon for the button.
	* @return the <code>pressedIcon</code> property
	* @see #setPressedIcon
	*/
	public Icon getPressedIcon() {
	return pressedIcon;
	}

	/**
	* Sets the pressed icon for the button.
	* @param pressedIcon the icon used as the "pressed" image
	* @see #getPressedIcon
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The pressed icon for the button.
	*/
	public void setPressedIcon(Icon pressedIcon) {
	Icon oldValue = this.pressedIcon;
	this.pressedIcon = pressedIcon;
	firePropertyChange(PRESSED_ICON_CHANGED_PROPERTY, oldValue, pressedIcon);
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, pressedIcon);
	}
	if (pressedIcon != oldValue) {
	if (getModel().isPressed()) {
	repaint();
	}
	}
	}

	/**
	* Returns the selected icon for the button.
	* @return the <code>selectedIcon</code> property
	* @see #setSelectedIcon
	*/
	public Icon getSelectedIcon() {
	return selectedIcon;
	}

	/**
	* Sets the selected icon for the button.
	* @param selectedIcon the icon used as the "selected" image
	* @see #getSelectedIcon
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The selected icon for the button.
	*/
	public void setSelectedIcon(Icon selectedIcon) {
	Icon oldValue = this.selectedIcon;
	this.selectedIcon = selectedIcon;

	/* If the default selected icon has really changed and we had
	* generated the disabled selected icon for this component,
	* (i.e. setDisabledSelectedIcon() was never called) then
	* clear the disabledSelectedIcon field.
	*/
	if (selectedIcon != oldValue &&
	disabledSelectedIcon instanceof UIResource) {

	disabledSelectedIcon = null;
	}

	firePropertyChange(SELECTED_ICON_CHANGED_PROPERTY, oldValue, selectedIcon);
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, selectedIcon);
	}
	if (selectedIcon != oldValue) {
	if (isSelected()) {
	repaint();
	}
	}
	}

	/**
	* Returns the rollover icon for the button.
	* @return the <code>rolloverIcon</code> property
	* @see #setRolloverIcon
	*/
	public Icon getRolloverIcon() {
	return rolloverIcon;
	}

	/**
	* Sets the rollover icon for the button.
	* @param rolloverIcon the icon used as the "rollover" image
	* @see #getRolloverIcon
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The rollover icon for the button.
	*/
	public void setRolloverIcon(Icon rolloverIcon) {
	Icon oldValue = this.rolloverIcon;
	this.rolloverIcon = rolloverIcon;
	firePropertyChange(ROLLOVER_ICON_CHANGED_PROPERTY, oldValue, rolloverIcon);
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, rolloverIcon);
	}
	setRolloverEnabled(true);
	if (rolloverIcon != oldValue) {
	// No way to determine whether we are currently in
	// a rollover state, so repaint regardless
	repaint();
	}

	}

	/**
	* Returns the rollover selection icon for the button.
	* @return the <code>rolloverSelectedIcon</code> property
	* @see #setRolloverSelectedIcon
	*/
	public Icon getRolloverSelectedIcon() {
	return rolloverSelectedIcon;
	}

	/**
	* Sets the rollover selected icon for the button.
	* @param rolloverSelectedIcon the icon used as the
	* "selected rollover" image
	* @see #getRolloverSelectedIcon
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The rollover selected icon for the button.
	*/
	public void setRolloverSelectedIcon(Icon rolloverSelectedIcon) {
	Icon oldValue = this.rolloverSelectedIcon;
	this.rolloverSelectedIcon = rolloverSelectedIcon;
	firePropertyChange(ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY, oldValue, rolloverSelectedIcon);
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, rolloverSelectedIcon);
	}
	setRolloverEnabled(true);
	if (rolloverSelectedIcon != oldValue) {
	// No way to determine whether we are currently in
	// a rollover state, so repaint regardless
	if (isSelected()) {
	repaint();
	}
	}
	}

	/**
	* Returns the icon used by the button when it's disabled.
	* If no disabled icon has been set this will forward the call to
	* the look and feel to construct an appropriate disabled Icon.
	* <p>
	* Some look and feels might not render the disabled Icon, in which
	* case they will ignore this.
	*
	* @return the <code>disabledIcon</code> property
	* @see #getPressedIcon
	* @see #setDisabledIcon
	* @see javax.swing.LookAndFeel#getDisabledIcon
	*/
	@Transient
	public Icon getDisabledIcon() {
	if (disabledIcon == null) {
	disabledIcon = UIManager.getLookAndFeel().getDisabledIcon(this, getIcon());
	if (disabledIcon != null) {
	firePropertyChange(DISABLED_ICON_CHANGED_PROPERTY, null, disabledIcon);
	}
	}
	return disabledIcon;
	}

	/**
	* Sets the disabled icon for the button.
	* @param disabledIcon the icon used as the disabled image
	* @see #getDisabledIcon
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The disabled icon for the button.
	*/
	public void setDisabledIcon(Icon disabledIcon) {
	Icon oldValue = this.disabledIcon;
	this.disabledIcon = disabledIcon;
	firePropertyChange(DISABLED_ICON_CHANGED_PROPERTY, oldValue, disabledIcon);
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, disabledIcon);
	}
	if (disabledIcon != oldValue) {
	if (!isEnabled()) {
	repaint();
	}
	}
	}

	/**
	* Returns the icon used by the button when it's disabled and selected.
	* If no disabled selection icon has been set, this will forward
	* the call to the LookAndFeel to construct an appropriate disabled
	* Icon from the selection icon if it has been set and to
	* <code>getDisabledIcon()</code> otherwise.
	* <p>
	* Some look and feels might not render the disabled selected Icon, in
	* which case they will ignore this.
	*
	* @return the <code>disabledSelectedIcon</code> property
	* @see #getDisabledIcon
	* @see #setDisabledSelectedIcon
	* @see javax.swing.LookAndFeel#getDisabledSelectedIcon
	*/
	public Icon getDisabledSelectedIcon() {
	if (disabledSelectedIcon == null) {
	if (selectedIcon != null) {
	disabledSelectedIcon = UIManager.getLookAndFeel().
	getDisabledSelectedIcon(this, getSelectedIcon());
	} else {
	return getDisabledIcon();
	}
	}
	return disabledSelectedIcon;
	}

	/**
	* Sets the disabled selection icon for the button.
	* @param disabledSelectedIcon the icon used as the disabled
	* selection image
	* @see #getDisabledSelectedIcon
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: The disabled selection icon for the button.
	*/
	public void setDisabledSelectedIcon(Icon disabledSelectedIcon) {
	Icon oldValue = this.disabledSelectedIcon;
	this.disabledSelectedIcon = disabledSelectedIcon;
	firePropertyChange(DISABLED_SELECTED_ICON_CHANGED_PROPERTY, oldValue, disabledSelectedIcon);
	if (accessibleContext != null) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY,
	oldValue, disabledSelectedIcon);
	}
	if (disabledSelectedIcon != oldValue) {
	if (disabledSelectedIcon == null \|\| oldValue == null \|\|
	disabledSelectedIcon.getIconWidth() != oldValue.getIconWidth() \|\|
	disabledSelectedIcon.getIconHeight() != oldValue.getIconHeight()) {
	revalidate();
	}
	if (!isEnabled() && isSelected()) {
	repaint();
	}
	}
	}

	/**
	* Returns the vertical alignment of the text and icon.
	*
	* @return the <code>verticalAlignment</code> property, one of the
	* following values:
	* <ul>
	* <li>{@code SwingConstants.CENTER} (the default)
	* <li>{@code SwingConstants.TOP}
	* <li>{@code SwingConstants.BOTTOM}
	* </ul>
	*/
	public int getVerticalAlignment() {
	return verticalAlignment;
	}

	/**
	* Sets the vertical alignment of the icon and text.
	* @param alignment one of the following values:
	* <ul>
	* <li>{@code SwingConstants.CENTER} (the default)
	* <li>{@code SwingConstants.TOP}
	* <li>{@code SwingConstants.BOTTOM}
	* </ul>
	* @throws IllegalArgumentException if the alignment is not one of the legal
	* values listed above
	* @beaninfo
	* bound: true
	* enum: TOP SwingConstants.TOP
	* CENTER SwingConstants.CENTER
	* BOTTOM SwingConstants.BOTTOM
	* attribute: visualUpdate true
	* description: The vertical alignment of the icon and text.
	*/
	public void setVerticalAlignment(int alignment) {
	if (alignment == verticalAlignment) return;
	int oldValue = verticalAlignment;
	verticalAlignment = checkVerticalKey(alignment, "verticalAlignment");
	firePropertyChange(VERTICAL_ALIGNMENT_CHANGED_PROPERTY, oldValue, verticalAlignment); repaint();
	}

	/**
	* Returns the horizontal alignment of the icon and text.
	* {@code AbstractButton}'s default is {@code SwingConstants.CENTER},
	* but subclasses such as {@code JCheckBox} may use a different default.
	*
	* @return the <code>horizontalAlignment</code> property,
	* one of the following values:
	* <ul>
	* <li>{@code SwingConstants.RIGHT}
	* <li>{@code SwingConstants.LEFT}
	* <li>{@code SwingConstants.CENTER}
	* <li>{@code SwingConstants.LEADING}
	* <li>{@code SwingConstants.TRAILING}
	* </ul>
	*/
	public int getHorizontalAlignment() {
	return horizontalAlignment;
	}

	/**
	* Sets the horizontal alignment of the icon and text.
	* {@code AbstractButton}'s default is {@code SwingConstants.CENTER},
	* but subclasses such as {@code JCheckBox} may use a different default.
	*
	* @param alignment the alignment value, one of the following values:
	* <ul>
	* <li>{@code SwingConstants.RIGHT}
	* <li>{@code SwingConstants.LEFT}
	* <li>{@code SwingConstants.CENTER}
	* <li>{@code SwingConstants.LEADING}
	* <li>{@code SwingConstants.TRAILING}
	* </ul>
	* @throws IllegalArgumentException if the alignment is not one of the
	* valid values
	* @beaninfo
	* bound: true
	* enum: LEFT SwingConstants.LEFT
	* CENTER SwingConstants.CENTER
	* RIGHT SwingConstants.RIGHT
	* LEADING SwingConstants.LEADING
	* TRAILING SwingConstants.TRAILING
	* attribute: visualUpdate true
	* description: The horizontal alignment of the icon and text.
	*/
	public void setHorizontalAlignment(int alignment) {
	if (alignment == horizontalAlignment) return;
	int oldValue = horizontalAlignment;
	horizontalAlignment = checkHorizontalKey(alignment,
	"horizontalAlignment");
	firePropertyChange(HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY,
	oldValue, horizontalAlignment);
	repaint();
	}


	/**
	* Returns the vertical position of the text relative to the icon.
	* @return the <code>verticalTextPosition</code> property,
	* one of the following values:
	* <ul>
	* <li>{@code SwingConstants.CENTER} (the default)
	* <li>{@code SwingConstants.TOP}
	* <li>{@code SwingConstants.BOTTOM}
	* </ul>
	*/
	public int getVerticalTextPosition() {
	return verticalTextPosition;
	}

	/**
	* Sets the vertical position of the text relative to the icon.
	* @param textPosition one of the following values:
	* <ul>
	* <li>{@code SwingConstants.CENTER} (the default)
	* <li>{@code SwingConstants.TOP}
	* <li>{@code SwingConstants.BOTTOM}
	* </ul>
	* @beaninfo
	* bound: true
	* enum: TOP SwingConstants.TOP
	* CENTER SwingConstants.CENTER
	* BOTTOM SwingConstants.BOTTOM
	* attribute: visualUpdate true
	* description: The vertical position of the text relative to the icon.
	*/
	public void setVerticalTextPosition(int textPosition) {
	if (textPosition == verticalTextPosition) return;
	int oldValue = verticalTextPosition;
	verticalTextPosition = checkVerticalKey(textPosition, "verticalTextPosition");
	firePropertyChange(VERTICAL_TEXT_POSITION_CHANGED_PROPERTY, oldValue, verticalTextPosition);
	revalidate();
	repaint();
	}

	/**
	* Returns the horizontal position of the text relative to the icon.
	* @return the <code>horizontalTextPosition</code> property,
	* one of the following values:
	* <ul>
	* <li>{@code SwingConstants.RIGHT}
	* <li>{@code SwingConstants.LEFT}
	* <li>{@code SwingConstants.CENTER}
	* <li>{@code SwingConstants.LEADING}
	* <li>{@code SwingConstants.TRAILING} (the default)
	* </ul>
	*/
	public int getHorizontalTextPosition() {
	return horizontalTextPosition;
	}

	/**
	* Sets the horizontal position of the text relative to the icon.
	* @param textPosition one of the following values:
	* <ul>
	* <li>{@code SwingConstants.RIGHT}
	* <li>{@code SwingConstants.LEFT}
	* <li>{@code SwingConstants.CENTER}
	* <li>{@code SwingConstants.LEADING}
	* <li>{@code SwingConstants.TRAILING} (the default)
	* </ul>
	* @exception IllegalArgumentException if <code>textPosition</code>
	* is not one of the legal values listed above
	* @beaninfo
	* bound: true
	* enum: LEFT SwingConstants.LEFT
	* CENTER SwingConstants.CENTER
	* RIGHT SwingConstants.RIGHT
	* LEADING SwingConstants.LEADING
	* TRAILING SwingConstants.TRAILING
	* attribute: visualUpdate true
	* description: The horizontal position of the text relative to the icon.
	*/
	public void setHorizontalTextPosition(int textPosition) {
	if (textPosition == horizontalTextPosition) return;
	int oldValue = horizontalTextPosition;
	horizontalTextPosition = checkHorizontalKey(textPosition,
	"horizontalTextPosition");
	firePropertyChange(HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY,
	oldValue,
	horizontalTextPosition);
	revalidate();
	repaint();
	}

	/**
	* Returns the amount of space between the text and the icon
	* displayed in this button.
	*
	* @return an int equal to the number of pixels between the text
	* and the icon.
	* @since 1.4
	* @see #setIconTextGap
	*/
	public int getIconTextGap() {
	return iconTextGap;
	}

	/**
	* If both the icon and text properties are set, this property
	* defines the space between them.
	* <p>
	* The default value of this property is 4 pixels.
	* <p>
	* This is a JavaBeans bound property.
	*
	* @since 1.4
	* @see #getIconTextGap
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: If both the icon and text properties are set, this
	* property defines the space between them.
	*/
	public void setIconTextGap(int iconTextGap) {
	int oldValue = this.iconTextGap;
	this.iconTextGap = iconTextGap;
	iconTextGapSet = true;
	firePropertyChange("iconTextGap", oldValue, iconTextGap);
	if (iconTextGap != oldValue) {
	revalidate();
	repaint();
	}
	}

	/**
	* Verify that the {@code key} argument is a legal value for the
	* {@code horizontalAlignment} and {@code horizontalTextPosition}
	* properties. Valid values are:
	* <ul>
	* <li>{@code SwingConstants.RIGHT}
	* <li>{@code SwingConstants.LEFT}
	* <li>{@code SwingConstants.CENTER}
	* <li>{@code SwingConstants.LEADING}
	* <li>{@code SwingConstants.TRAILING}
	* </ul>
	*
	* @param key the property value to check
	* @param exception the message to use in the
	* {@code IllegalArgumentException} that is thrown for an invalid
	* value
	* @return the {@code key} argument
	* @exception IllegalArgumentException if key is not one of the legal
	* values listed above
	* @see #setHorizontalTextPosition
	* @see #setHorizontalAlignment
	*/
	protected int checkHorizontalKey(int key, String exception) {
	if ((key == LEFT) \|\|
	(key == CENTER) \|\|
	(key == RIGHT) \|\|
	(key == LEADING) \|\|
	(key == TRAILING)) {
	return key;
	} else {
	throw new IllegalArgumentException(exception);
	}
	}

	/**
	* Verify that the {@code key} argument is a legal value for the
	* vertical properties. Valid values are:
	* <ul>
	* <li>{@code SwingConstants.CENTER}
	* <li>{@code SwingConstants.TOP}
	* <li>{@code SwingConstants.BOTTOM}
	* </ul>
	*
	* @param key the property value to check
	* @param exception the message to use in the
	* {@code IllegalArgumentException} that is thrown for an invalid
	* value
	* @return the {@code key} argument
	* @exception IllegalArgumentException if key is not one of the legal
	* values listed above
	*/
	protected int checkVerticalKey(int key, String exception) {
	if ((key == TOP) \|\| (key == CENTER) \|\| (key == BOTTOM)) {
	return key;
	} else {
	throw new IllegalArgumentException(exception);
	}
	}

	/**
	*{@inheritDoc}
	*
	* @since 1.6
	*/
	public void removeNotify() {
	super.removeNotify();
	if(isRolloverEnabled()) {
	getModel().setRollover(false);
	}
	}

	/**
	* Sets the action command for this button.
	* @param actionCommand the action command for this button
	*/
	public void setActionCommand(String actionCommand) {
	getModel().setActionCommand(actionCommand);
	}

	/**
	* Returns the action command for this button.
	* @return the action command for this button
	*/
	public String getActionCommand() {
	String ac = getModel().getActionCommand();
	if(ac == null) {
	ac = getText();
	}
	return ac;
	}

	private Action action;
	private PropertyChangeListener actionPropertyChangeListener;

	/**
	* Sets the <code>Action</code>.
	* The new <code>Action</code> replaces any previously set
	* <code>Action</code> but does not affect <code>ActionListeners</code>
	* independently added with <code>addActionListener</code>.
	* If the <code>Action</code> is already a registered
	* <code>ActionListener</code> for the button, it is not re-registered.
	* <p>
	* Setting the <code>Action</code> results in immediately changing
	* all the properties described in <a href="Action.html#buttonActions">
	* Swing Components Supporting <code>Action</code></a>.
	* Subsequently, the button's properties are automatically updated
	* as the <code>Action</code>'s properties change.
	* <p>
	* This method uses three other methods to set
	* and help track the <code>Action</code>'s property values.
	* It uses the <code>configurePropertiesFromAction</code> method
	* to immediately change the button's properties.
	* To track changes in the <code>Action</code>'s property values,
	* this method registers the <code>PropertyChangeListener</code>
	* returned by <code>createActionPropertyChangeListener</code>. The
	* default {@code PropertyChangeListener} invokes the
	* {@code actionPropertyChanged} method when a property in the
	* {@code Action} changes.
	*
	* @param a the <code>Action</code> for the <code>AbstractButton</code>,
	* or <code>null</code>
	* @since 1.3
	* @see Action
	* @see #getAction
	* @see #configurePropertiesFromAction
	* @see #createActionPropertyChangeListener
	* @see #actionPropertyChanged
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: the Action instance connected with this ActionEvent source
	*/
	public void setAction(Action a) {
	Action oldValue = getAction();
	if (action==null \|\| !action.equals(a)) {
	action = a;
	if (oldValue!=null) {
	removeActionListener(oldValue);
	oldValue.removePropertyChangeListener(actionPropertyChangeListener);
	actionPropertyChangeListener = null;
	}
	configurePropertiesFromAction(action);
	if (action!=null) {
	// Don't add if it is already a listener
	if (!isListener(ActionListener.class, action)) {
	addActionListener(action);
	}
	// Reverse linkage:
	actionPropertyChangeListener = createActionPropertyChangeListener(action);
	action.addPropertyChangeListener(actionPropertyChangeListener);
	}
	firePropertyChange("action", oldValue, action);
	}
	}

	private boolean isListener(Class c, ActionListener a) {
	boolean isListener = false;
	Object[] listeners = listenerList.getListenerList();
	for (int i = listeners.length-2; i>=0; i-=2) {
	if (listeners[i]==c && listeners[i+1]==a) {
	isListener=true;
	}
	}
	return isListener;
	}

	/**
	* Returns the currently set <code>Action</code> for this
	* <code>ActionEvent</code> source, or <code>null</code>
	* if no <code>Action</code> is set.
	*
	* @return the <code>Action</code> for this <code>ActionEvent</code>
	* source, or <code>null</code>
	* @since 1.3
	* @see Action
	* @see #setAction
	*/
	public Action getAction() {
	return action;
	}

	/**
	* Sets the properties on this button to match those in the specified
	* <code>Action</code>. Refer to <a href="Action.html#buttonActions">
	* Swing Components Supporting <code>Action</code></a> for more
	* details as to which properties this sets.
	*
	* @param a the <code>Action</code> from which to get the properties,
	* or <code>null</code>
	* @since 1.3
	* @see Action
	* @see #setAction
	*/
	protected void configurePropertiesFromAction(Action a) {
	setMnemonicFromAction(a);
	setTextFromAction(a, false);
	AbstractAction.setToolTipTextFromAction(this, a);
	setIconFromAction(a);
	setActionCommandFromAction(a);
	AbstractAction.setEnabledFromAction(this, a);
	if (AbstractAction.hasSelectedKey(a) &&
	shouldUpdateSelectedStateFromAction()) {
	setSelectedFromAction(a);
	}
	setDisplayedMnemonicIndexFromAction(a, false);
	}

	void clientPropertyChanged(Object key, Object oldValue,
	Object newValue) {
	if (key == "hideActionText") {
	boolean current = (newValue instanceof Boolean) ?
	(Boolean)newValue : false;
	if (getHideActionText() != current) {
	setHideActionText(current);
	}
	}
	}

	/**
	* Button subclasses that support mirroring the selected state from
	* the action should override this to return true. AbstractButton's
	* implementation returns false.
	*/
	boolean shouldUpdateSelectedStateFromAction() {
	return false;
	}

	/**
	* Updates the button's state in response to property changes in the
	* associated action. This method is invoked from the
	* {@code PropertyChangeListener} returned from
	* {@code createActionPropertyChangeListener}. Subclasses do not normally
	* need to invoke this. Subclasses that support additional {@code Action}
	* properties should override this and
	* {@code configurePropertiesFromAction}.
	* <p>
	* Refer to the table at <a href="Action.html#buttonActions">
	* Swing Components Supporting <code>Action</code></a> for a list of
	* the properties this method sets.
	*
	* @param action the <code>Action</code> associated with this button
	* @param propertyName the name of the property that changed
	* @since 1.6
	* @see Action
	* @see #configurePropertiesFromAction
	*/
	protected void actionPropertyChanged(Action action, String propertyName) {
	if (propertyName == Action.NAME) {
	setTextFromAction(action, true);
	} else if (propertyName == "enabled") {
	AbstractAction.setEnabledFromAction(this, action);
	} else if (propertyName == Action.SHORT_DESCRIPTION) {
	AbstractAction.setToolTipTextFromAction(this, action);
	} else if (propertyName == Action.SMALL_ICON) {
	smallIconChanged(action);
	} else if (propertyName == Action.MNEMONIC_KEY) {
	setMnemonicFromAction(action);
	} else if (propertyName == Action.ACTION_COMMAND_KEY) {
	setActionCommandFromAction(action);
	} else if (propertyName == Action.SELECTED_KEY &&
	AbstractAction.hasSelectedKey(action) &&
	shouldUpdateSelectedStateFromAction()) {
	setSelectedFromAction(action);
	} else if (propertyName == Action.DISPLAYED_MNEMONIC_INDEX_KEY) {
	setDisplayedMnemonicIndexFromAction(action, true);
	} else if (propertyName == Action.LARGE_ICON_KEY) {
	largeIconChanged(action);
	}
	}

	private void setDisplayedMnemonicIndexFromAction(
	Action a, boolean fromPropertyChange) {
	Integer iValue = (a == null) ? null :
	(Integer)a.getValue(Action.DISPLAYED_MNEMONIC_INDEX_KEY);
	if (fromPropertyChange \|\| iValue != null) {
	int value;
	if (iValue == null) {
	value = -1;
	} else {
	value = iValue;
	String text = getText();
	if (text == null \|\| value >= text.length()) {
	value = -1;
	}
	}
	setDisplayedMnemonicIndex(value);
	}
	}

	private void setMnemonicFromAction(Action a) {
	Integer n = (a == null) ? null :
	(Integer)a.getValue(Action.MNEMONIC_KEY);
	setMnemonic((n == null) ? '\0' : n);
	}

	private void setTextFromAction(Action a, boolean propertyChange) {
	boolean hideText = getHideActionText();
	if (!propertyChange) {
	setText((a != null && !hideText) ?
	(String)a.getValue(Action.NAME) : null);
	}
	else if (!hideText) {
	setText((String)a.getValue(Action.NAME));
	}
	}

	void setIconFromAction(Action a) {
	Icon icon = null;
	if (a != null) {
	icon = (Icon)a.getValue(Action.LARGE_ICON_KEY);
	if (icon == null) {
	icon = (Icon)a.getValue(Action.SMALL_ICON);
	}
	}
	setIcon(icon);
	}

	void smallIconChanged(Action a) {
	if (a.getValue(Action.LARGE_ICON_KEY) == null) {
	setIconFromAction(a);
	}
	}

	void largeIconChanged(Action a) {
	setIconFromAction(a);
	}

	private void setActionCommandFromAction(Action a) {
	setActionCommand((a != null) ?
	(String)a.getValue(Action.ACTION_COMMAND_KEY) :
	null);
	}

	/**
	* Sets the seleted state of the button from the action. This is defined
	* here, but not wired up. Subclasses like JToggleButton and
	* JCheckBoxMenuItem make use of it.
	*
	* @param a the Action
	*/
	private void setSelectedFromAction(Action a) {
	boolean selected = false;
	if (a != null) {
	selected = AbstractAction.isSelected(a);
	}
	if (selected != isSelected()) {
	// This won't notify ActionListeners, but that should be
	// ok as the change is coming from the Action.
	setSelected(selected);
	// Make sure the change actually took effect
	if (!selected && isSelected()) {
	if (getModel() instanceof DefaultButtonModel) {
	ButtonGroup group = ((DefaultButtonModel)getModel()).getGroup();
	if (group != null) {
	group.clearSelection();
	}
	}
	}
	}
	}

	/**
	* Creates and returns a <code>PropertyChangeListener</code> that is
	* responsible for listening for changes from the specified
	* <code>Action</code> and updating the appropriate properties.
	* <p>
	* <b>Warning:</b> If you subclass this do not create an anonymous
	* inner class. If you do the lifetime of the button will be tied to
	* that of the <code>Action</code>.
	*
	* @param a the button's action
	* @since 1.3
	* @see Action
	* @see #setAction
	*/
	protected PropertyChangeListener createActionPropertyChangeListener(Action a) {
	return createActionPropertyChangeListener0(a);
	}


	PropertyChangeListener createActionPropertyChangeListener0(Action a) {
	return new ButtonActionPropertyChangeListener(this, a);
	}

	@SuppressWarnings("serial")
	private static class ButtonActionPropertyChangeListener
	extends ActionPropertyChangeListener<AbstractButton> {
	ButtonActionPropertyChangeListener(AbstractButton b, Action a) {
	super(b, a);
	}
	protected void actionPropertyChanged(AbstractButton button,
	Action action,
	PropertyChangeEvent e) {
	if (AbstractAction.shouldReconfigure(e)) {
	button.configurePropertiesFromAction(action);
	} else {
	button.actionPropertyChanged(action, e.getPropertyName());
	}
	}
	}

	/**
	* Gets the <code>borderPainted</code> property.
	*
	* @return the value of the <code>borderPainted</code> property
	* @see #setBorderPainted
	*/
	public boolean isBorderPainted() {
	return paintBorder;
	}

	/**
	* Sets the <code>borderPainted</code> property.
	* If <code>true</code> and the button has a border,
	* the border is painted. The default value for the
	* <code>borderPainted</code> property is <code>true</code>.
	* <p>
	* Some look and feels might not support
	* the <code>borderPainted</code> property,
	* in which case they ignore this.
	*
	* @param b if true and border property is not <code>null</code>,
	* the border is painted
	* @see #isBorderPainted
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: Whether the border should be painted.
	*/
	public void setBorderPainted(boolean b) {
	boolean oldValue = paintBorder;
	paintBorder = b;
	borderPaintedSet = true;
	firePropertyChange(BORDER_PAINTED_CHANGED_PROPERTY, oldValue, paintBorder);
	if (b != oldValue) {
	revalidate();
	repaint();
	}
	}

	/**
	* Paint the button's border if <code>BorderPainted</code>
	* property is true and the button has a border.
	* @param g the <code>Graphics</code> context in which to paint
	*
	* @see #paint
	* @see #setBorder
	*/
	protected void paintBorder(Graphics g) {
	if (isBorderPainted()) {
	super.paintBorder(g);
	}
	}

	/**
	* Gets the <code>paintFocus</code> property.
	*
	* @return the <code>paintFocus</code> property
	* @see #setFocusPainted
	*/
	public boolean isFocusPainted() {
	return paintFocus;
	}

	/**
	* Sets the <code>paintFocus</code> property, which must
	* be <code>true</code> for the focus state to be painted.
	* The default value for the <code>paintFocus</code> property
	* is <code>true</code>.
	* Some look and feels might not paint focus state;
	* they will ignore this property.
	*
	* @param b if <code>true</code>, the focus state should be painted
	* @see #isFocusPainted
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: Whether focus should be painted
	*/
	public void setFocusPainted(boolean b) {
	boolean oldValue = paintFocus;
	paintFocus = b;
	firePropertyChange(FOCUS_PAINTED_CHANGED_PROPERTY, oldValue, paintFocus);
	if (b != oldValue && isFocusOwner()) {
	revalidate();
	repaint();
	}
	}

	/**
	* Gets the <code>contentAreaFilled</code> property.
	*
	* @return the <code>contentAreaFilled</code> property
	* @see #setContentAreaFilled
	*/
	public boolean isContentAreaFilled() {
	return contentAreaFilled;
	}

	/**
	* Sets the <code>contentAreaFilled</code> property.
	* If <code>true</code> the button will paint the content
	* area. If you wish to have a transparent button, such as
	* an icon only button, for example, then you should set
	* this to <code>false</code>. Do not call <code>setOpaque(false)</code>.
	* The default value for the the <code>contentAreaFilled</code>
	* property is <code>true</code>.
	* <p>
	* This function may cause the component's opaque property to change.
	* <p>
	* The exact behavior of calling this function varies on a
	* component-by-component and L&F-by-L&F basis.
	*
	* @param b if true, the content should be filled; if false
	* the content area is not filled
	* @see #isContentAreaFilled
	* @see #setOpaque
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: Whether the button should paint the content area
	* or leave it transparent.
	*/
	public void setContentAreaFilled(boolean b) {
	boolean oldValue = contentAreaFilled;
	contentAreaFilled = b;
	contentAreaFilledSet = true;
	firePropertyChange(CONTENT_AREA_FILLED_CHANGED_PROPERTY, oldValue, contentAreaFilled);
	if (b != oldValue) {
	repaint();
	}
	}

	/**
	* Gets the <code>rolloverEnabled</code> property.
	*
	* @return the value of the <code>rolloverEnabled</code> property
	* @see #setRolloverEnabled
	*/
	public boolean isRolloverEnabled() {
	return rolloverEnabled;
	}

	/**
	* Sets the <code>rolloverEnabled</code> property, which
	* must be <code>true</code> for rollover effects to occur.
	* The default value for the <code>rolloverEnabled</code>
	* property is <code>false</code>.
	* Some look and feels might not implement rollover effects;
	* they will ignore this property.
	*
	* @param b if <code>true</code>, rollover effects should be painted
	* @see #isRolloverEnabled
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: Whether rollover effects should be enabled.
	*/
	public void setRolloverEnabled(boolean b) {
	boolean oldValue = rolloverEnabled;
	rolloverEnabled = b;
	rolloverEnabledSet = true;
	firePropertyChange(ROLLOVER_ENABLED_CHANGED_PROPERTY, oldValue, rolloverEnabled);
	if (b != oldValue) {
	repaint();
	}
	}

	/**
	* Returns the keyboard mnemonic from the the current model.
	* @return the keyboard mnemonic from the model
	*/
	public int getMnemonic() {
	return mnemonic;
	}

	/**
	* Sets the keyboard mnemonic on the current model.
	* The mnemonic is the key which when combined with the look and feel's
	* mouseless modifier (usually Alt) will activate this button
	* if focus is contained somewhere within this button's ancestor
	* window.
	* <p>
	* A mnemonic must correspond to a single key on the keyboard
	* and should be specified using one of the <code>VK_XXX</code>
	* keycodes defined in <code>java.awt.event.KeyEvent</code>.
	* These codes and the wider array of codes for international
	* keyboards may be obtained through
	* <code>java.awt.event.KeyEvent.getExtendedKeyCodeForChar</code>.
	* Mnemonics are case-insensitive, therefore a key event
	* with the corresponding keycode would cause the button to be
	* activated whether or not the Shift modifier was pressed.
	* <p>
	* If the character defined by the mnemonic is found within
	* the button's label string, the first occurrence of it
	* will be underlined to indicate the mnemonic to the user.
	*
	* @param mnemonic the key code which represents the mnemonic
	* @see java.awt.event.KeyEvent
	* @see #setDisplayedMnemonicIndex
	*
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: the keyboard character mnemonic
	*/
	public void setMnemonic(int mnemonic) {
	int oldValue = getMnemonic();
	model.setMnemonic(mnemonic);
	updateMnemonicProperties();
	}

	/**
	* This method is now obsolete, please use <code>setMnemonic(int)</code>
	* to set the mnemonic for a button. This method is only designed
	* to handle character values which fall between 'a' and 'z' or
	* 'A' and 'Z'.
	*
	* @param mnemonic a char specifying the mnemonic value
	* @see #setMnemonic(int)
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: the keyboard character mnemonic
	*/
	public void setMnemonic(char mnemonic) {
	int vk = (int) mnemonic;
	if(vk >= 'a' && vk <='z')
	vk -= ('a' - 'A');
	setMnemonic(vk);
	}

	/**
	* Provides a hint to the look and feel as to which character in the
	* text should be decorated to represent the mnemonic. Not all look and
	* feels may support this. A value of -1 indicates either there is no
	* mnemonic, the mnemonic character is not contained in the string, or
	* the developer does not wish the mnemonic to be displayed.
	* <p>
	* The value of this is updated as the properties relating to the
	* mnemonic change (such as the mnemonic itself, the text...).
	* You should only ever have to call this if
	* you do not wish the default character to be underlined. For example, if
	* the text was 'Save As', with a mnemonic of 'a', and you wanted the 'A'
	* to be decorated, as 'Save <u>A</u>s', you would have to invoke
	* <code>setDisplayedMnemonicIndex(5)</code> after invoking
	* <code>setMnemonic(KeyEvent.VK_A)</code>.
	*
	* @since 1.4
	* @param index Index into the String to underline
	* @exception IllegalArgumentException will be thrown if <code>index</code>
	* is >= length of the text, or < -1
	* @see #getDisplayedMnemonicIndex
	*
	* @beaninfo
	* bound: true
	* attribute: visualUpdate true
	* description: the index into the String to draw the keyboard character
	* mnemonic at
	*/
	public void setDisplayedMnemonicIndex(int index)
	throws IllegalArgumentException {
	int oldValue = mnemonicIndex;
	if (index == -1) {
	mnemonicIndex = -1;
	} else {
	String text = getText();
	int textLength = (text == null) ? 0 : text.length();
	if (index < -1 \|\| index >= textLength) { // index out of range
	throw new IllegalArgumentException("index == " + index);
	}
	}
	mnemonicIndex = index;
	firePropertyChange("displayedMnemonicIndex", oldValue, index);
	if (index != oldValue) {
	revalidate();
	repaint();
	}
	}

	/**
	* Returns the character, as an index, that the look and feel should
	* provide decoration for as representing the mnemonic character.
	*
	* @since 1.4
	* @return index representing mnemonic character
	* @see #setDisplayedMnemonicIndex
	*/
	public int getDisplayedMnemonicIndex() {
	return mnemonicIndex;
	}

	/**
	* Update the displayedMnemonicIndex property. This method
	* is called when either text or mnemonic changes. The new
	* value of the displayedMnemonicIndex property is the index
	* of the first occurrence of mnemonic in text.
	*/
	private void updateDisplayedMnemonicIndex(String text, int mnemonic) {
	setDisplayedMnemonicIndex(
	SwingUtilities.findDisplayedMnemonicIndex(text, mnemonic));
	}

	/**
	* Brings the mnemonic property in accordance with model's mnemonic.
	* This is called when model's mnemonic changes. Also updates the
	* displayedMnemonicIndex property.
	*/
	private void updateMnemonicProperties() {
	int newMnemonic = model.getMnemonic();
	if (mnemonic != newMnemonic) {
	int oldValue = mnemonic;
	mnemonic = newMnemonic;
	firePropertyChange(MNEMONIC_CHANGED_PROPERTY,
	oldValue, mnemonic);
	updateDisplayedMnemonicIndex(getText(), mnemonic);
	revalidate();
	repaint();
	}
	}

	/**
	* Sets the amount of time (in milliseconds) required between
	* mouse press events for the button to generate the corresponding
	* action events. After the initial mouse press occurs (and action
	* event generated) any subsequent mouse press events which occur
	* on intervals less than the threshhold will be ignored and no
	* corresponding action event generated. By default the threshhold is 0,
	* which means that for each mouse press, an action event will be
	* fired, no matter how quickly the mouse clicks occur. In buttons
	* where this behavior is not desirable (for example, the "OK" button
	* in a dialog), this threshhold should be set to an appropriate
	* positive value.
	*
	* @see #getMultiClickThreshhold
	* @param threshhold the amount of time required between mouse
	* press events to generate corresponding action events
	* @exception IllegalArgumentException if threshhold < 0
	* @since 1.4
	*/
	public void setMultiClickThreshhold(long threshhold) {
	if (threshhold < 0) {
	throw new IllegalArgumentException("threshhold must be >= 0");
	}
	this.multiClickThreshhold = threshhold;
	}

	/**
	* Gets the amount of time (in milliseconds) required between
	* mouse press events for the button to generate the corresponding
	* action events.
	*
	* @see #setMultiClickThreshhold
	* @return the amount of time required between mouse press events
	* to generate corresponding action events
	* @since 1.4
	*/
	public long getMultiClickThreshhold() {
	return multiClickThreshhold;
	}

	/**
	* Returns the model that this button represents.
	* @return the <code>model</code> property
	* @see #setModel
	*/
	public ButtonModel getModel() {
	return model;
	}

	/**
	* Sets the model that this button represents.
	* @param newModel the new <code>ButtonModel</code>
	* @see #getModel
	* @beaninfo
	* bound: true
	* description: Model that the Button uses.
	*/
	public void setModel(ButtonModel newModel) {

	ButtonModel oldModel = getModel();

	if (oldModel != null) {
	oldModel.removeChangeListener(changeListener);
	oldModel.removeActionListener(actionListener);
	oldModel.removeItemListener(itemListener);
	changeListener = null;
	actionListener = null;
	itemListener = null;
	}

	model = newModel;

	if (newModel != null) {
	changeListener = createChangeListener();
	actionListener = createActionListener();
	itemListener = createItemListener();
	newModel.addChangeListener(changeListener);
	newModel.addActionListener(actionListener);
	newModel.addItemListener(itemListener);

	updateMnemonicProperties();
	//We invoke setEnabled() from JComponent
	//because setModel() can be called from a constructor
	//when the button is not fully initialized
	super.setEnabled(newModel.isEnabled());

	} else {
	mnemonic = '\0';
	}

	updateDisplayedMnemonicIndex(getText(), mnemonic);

	firePropertyChange(MODEL_CHANGED_PROPERTY, oldModel, newModel);
	if (newModel != oldModel) {
	revalidate();
	repaint();
	}
	}


	/**
	* Returns the L&F object that renders this component.
	* @return the ButtonUI object
	* @see #setUI
	*/
	public ButtonUI getUI() {
	return (ButtonUI) ui;
	}


	/**
	* Sets the L&F object that renders this component.
	* @param ui the <code>ButtonUI</code> L&F object
	* @see #getUI
	* @beaninfo
	* bound: true
	* hidden: true
	* attribute: visualUpdate true
	* description: The UI object that implements the LookAndFeel.
	*/
	public void setUI(ButtonUI ui) {
	super.setUI(ui);
	// disabled icons are generated by the LF so they should be unset here
	if (disabledIcon instanceof UIResource) {
	setDisabledIcon(null);
	}
	if (disabledSelectedIcon instanceof UIResource) {
	setDisabledSelectedIcon(null);
	}
	}


	/**
	* Resets the UI property to a value from the current look
	* and feel. Subtypes of <code>AbstractButton</code>
	* should override this to update the UI. For
	* example, <code>JButton</code> might do the following:
	* <pre>
	* setUI((ButtonUI)UIManager.getUI(
	* "ButtonUI", "javax.swing.plaf.basic.BasicButtonUI", this));
	* </pre>
	*/
	public void updateUI() {
	}

	/**
	* Adds the specified component to this container at the specified
	* index, refer to
	* {@link java.awt.Container#addImpl(Component, Object, int)}
	* for a complete description of this method.
	*
	* @param comp the component to be added
	* @param constraints an object expressing layout constraints
	* for this component
	* @param index the position in the container's list at which to
	* insert the component, where <code>-1</code>
	* means append to the end
	* @exception IllegalArgumentException if <code>index</code> is invalid
	* @exception IllegalArgumentException if adding the container's parent
	* to itself
	* @exception IllegalArgumentException if adding a window to a container
	* @since 1.5
	*/
	protected void addImpl(Component comp, Object constraints, int index) {
	if (!setLayout) {
	setLayout(new OverlayLayout(this));
	}
	super.addImpl(comp, constraints, index);
	}

	/**
	* Sets the layout manager for this container, refer to
	* {@link java.awt.Container#setLayout(LayoutManager)}
	* for a complete description of this method.
	*
	* @param mgr the specified layout manager
	* @since 1.5
	*/
	public void setLayout(LayoutManager mgr) {
	setLayout = true;
	super.setLayout(mgr);
	}

	/**
	* Adds a <code>ChangeListener</code> to the button.
	* @param l the listener to be added
	*/
	public void addChangeListener(ChangeListener l) {
	listenerList.add(ChangeListener.class, l);
	}

	/**
	* Removes a ChangeListener from the button.
	* @param l the listener to be removed
	*/
	public void removeChangeListener(ChangeListener l) {
	listenerList.remove(ChangeListener.class, l);
	}

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

	/**
	* Notifies all listeners that have registered interest for
	* notification on this event type. The event instance
	* is lazily created.
	* @see EventListenerList
	*/
	protected void fireStateChanged() {
	// Guaranteed to return a non-null array
	Object[] listeners = listenerList.getListenerList();
	// Process the listeners last to first, notifying
	// those that are interested in this event
	for (int i = listeners.length-2; i>=0; i-=2) {
	if (listeners[i]==ChangeListener.class) {
	// Lazily create the event:
	if (changeEvent == null)
	changeEvent = new ChangeEvent(this);
	((ChangeListener)listeners[i+1]).stateChanged(changeEvent);
	}
	}
	}

	/**
	* Adds an <code>ActionListener</code> to the button.
	* @param l the <code>ActionListener</code> to be added
	*/
	public void addActionListener(ActionListener l) {
	listenerList.add(ActionListener.class, l);
	}

	/**
	* Removes an <code>ActionListener</code> from the button.
	* If the listener is the currently set <code>Action</code>
	* for the button, then the <code>Action</code>
	* is set to <code>null</code>.
	*
	* @param l the listener to be removed
	*/
	public void removeActionListener(ActionListener l) {
	if ((l != null) && (getAction() == l)) {
	setAction(null);
	} else {
	listenerList.remove(ActionListener.class, l);
	}
	}

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

	/**
	* Subclasses that want to handle <code>ChangeEvents</code> differently
	* can override this to return another <code>ChangeListener</code>
	* implementation.
	*
	* @return the new <code>ChangeListener</code>
	*/
	protected ChangeListener createChangeListener() {
	return getHandler();
	}

	/**
	* Extends <code>ChangeListener</code> to be serializable.
	* <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}.
	*/
	@SuppressWarnings("serial")
	protected class ButtonChangeListener implements ChangeListener, Serializable {
	// NOTE: This class is NOT used, instead the functionality has
	// been moved to Handler.
	ButtonChangeListener() {
	}

	public void stateChanged(ChangeEvent e) {
	getHandler().stateChanged(e);
	}
	}


	/**
	* Notifies all listeners that have registered interest for
	* notification on this event type. The event instance
	* is lazily created using the <code>event</code>
	* parameter.
	*
	* @param event the <code>ActionEvent</code> object
	* @see EventListenerList
	*/
	protected void fireActionPerformed(ActionEvent event) {
	// Guaranteed to return a non-null array
	Object[] listeners = listenerList.getListenerList();
	ActionEvent e = null;
	// Process the listeners last to first, notifying
	// those that are interested in this event
	for (int i = listeners.length-2; i>=0; i-=2) {
	if (listeners[i]==ActionListener.class) {
	// Lazily create the event:
	if (e == null) {
	String actionCommand = event.getActionCommand();
	if(actionCommand == null) {
	actionCommand = getActionCommand();
	}
	e = new ActionEvent(AbstractButton.this,
	ActionEvent.ACTION_PERFORMED,
	actionCommand,
	event.getWhen(),
	event.getModifiers());
	}
	((ActionListener)listeners[i+1]).actionPerformed(e);
	}
	}
	}

	/**
	* Notifies all listeners that have registered interest for
	* notification on this event type. The event instance
	* is lazily created using the <code>event</code> parameter.
	*
	* @param event the <code>ItemEvent</code> object
	* @see EventListenerList
	*/
	protected void fireItemStateChanged(ItemEvent event) {
	// Guaranteed to return a non-null array
	Object[] listeners = listenerList.getListenerList();
	ItemEvent e = null;
	// Process the listeners last to first, notifying
	// those that are interested in this event
	for (int i = listeners.length-2; i>=0; i-=2) {
	if (listeners[i]==ItemListener.class) {
	// Lazily create the event:
	if (e == null) {
	e = new ItemEvent(AbstractButton.this,
	ItemEvent.ITEM_STATE_CHANGED,
	AbstractButton.this,
	event.getStateChange());
	}
	((ItemListener)listeners[i+1]).itemStateChanged(e);
	}
	}
	if (accessibleContext != null) {
	if (event.getStateChange() == ItemEvent.SELECTED) {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	null, AccessibleState.SELECTED);
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VALUE_PROPERTY,
	Integer.valueOf(0), Integer.valueOf(1));
	} else {
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_STATE_PROPERTY,
	AccessibleState.SELECTED, null);
	accessibleContext.firePropertyChange(
	AccessibleContext.ACCESSIBLE_VALUE_PROPERTY,
	Integer.valueOf(1), Integer.valueOf(0));
	}
	}
	}


	protected ActionListener createActionListener() {
	return getHandler();
	}


	protected ItemListener createItemListener() {
	return getHandler();
	}


	/**
	* Enables (or disables) the button.
	* @param b true to enable the button, otherwise false
	*/
	public void setEnabled(boolean b) {
	if (!b && model.isRollover()) {
	model.setRollover(false);
	}
	super.setEnabled(b);
	model.setEnabled(b);
	}

	// * Deprecated java.awt.Button APIs below * //

	/**
	* Returns the label text.
	*
	* @return a <code>String</code> containing the label
	* @deprecated - Replaced by <code>getText</code>
	*/
	@Deprecated
	public String getLabel() {
	return getText();
	}

	/**
	* Sets the label text.
	*
	* @param label a <code>String</code> containing the text
	* @deprecated - Replaced by <code>setText(text)</code>
	* @beaninfo
	* bound: true
	* description: Replace by setText(text)
	*/
	@Deprecated
	public void setLabel(String label) {
	setText(label);
	}

	/**
	* Adds an <code>ItemListener</code> to the <code>checkbox</code>.
	* @param l the <code>ItemListener</code> to be added
	*/
	public void addItemListener(ItemListener l) {
	listenerList.add(ItemListener.class, l);
	}

	/**
	* Removes an <code>ItemListener</code> from the button.
	* @param l the <code>ItemListener</code> to be removed
	*/
	public void removeItemListener(ItemListener l) {
	listenerList.remove(ItemListener.class, l);
	}

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

	/**
	* Returns an array (length 1) containing the label or
	* <code>null</code> if the button is not selected.
	*
	* @return an array containing 1 Object: the text of the button,
	* if the item is selected; otherwise <code>null</code>
	*/
	public Object[] getSelectedObjects() {
	if (isSelected() == false) {
	return null;
	}
	Object[] selectedObjects = new Object[1];
	selectedObjects[0] = getText();
	return selectedObjects;
	}

	protected void init(String text, Icon icon) {
	if(text != null) {
	setText(text);
	}

	if(icon != null) {
	setIcon(icon);
	}

	// Set the UI
	updateUI();

	setAlignmentX(LEFT_ALIGNMENT);
	setAlignmentY(CENTER_ALIGNMENT);
	}


	/**
	* This is overridden to return false if the current <code>Icon</code>'s
	* <code>Image</code> is not equal to the
	* passed in <code>Image</code> <code>img</code>.
	*
	* @param img the <code>Image</code> to be compared
	* @param infoflags flags used to repaint the button when the image
	* is updated and which determine how much is to be painted
	* @param x the x coordinate
	* @param y the y coordinate
	* @param w the width
	* @param h the height
	* @see java.awt.image.ImageObserver
	* @see java.awt.Component#imageUpdate(java.awt.Image, int, int, int, int, int)
	*/
	public boolean imageUpdate(Image img, int infoflags,
	int x, int y, int w, int h) {
	Icon iconDisplayed = null;

	if (!model.isEnabled()) {
	if (model.isSelected()) {
	iconDisplayed = getDisabledSelectedIcon();
	} else {
	iconDisplayed = getDisabledIcon();
	}
	} else if (model.isPressed() && model.isArmed()) {
	iconDisplayed = getPressedIcon();
	} else if (isRolloverEnabled() && model.isRollover()) {
	if (model.isSelected()) {
	iconDisplayed = getRolloverSelectedIcon();
	} else {
	iconDisplayed = getRolloverIcon();
	}
	} else if (model.isSelected()) {
	iconDisplayed = getSelectedIcon();
	}

	if (iconDisplayed == null) {
	iconDisplayed = getIcon();
	}

	if (iconDisplayed == null
	\|\| !SwingUtilities.doesIconReferenceImage(iconDisplayed, img)) {
	// We don't know about this image, disable the notification so
	// we don't keep repainting.
	return false;
	}
	return super.imageUpdate(img, infoflags, x, y, w, h);
	}

	void setUIProperty(String propertyName, Object value) {
	if (propertyName == "borderPainted") {
	if (!borderPaintedSet) {
	setBorderPainted(((Boolean)value).booleanValue());
	borderPaintedSet = false;
	}
	} else if (propertyName == "rolloverEnabled") {
	if (!rolloverEnabledSet) {
	setRolloverEnabled(((Boolean)value).booleanValue());
	rolloverEnabledSet = false;
	}
	} else if (propertyName == "iconTextGap") {
	if (!iconTextGapSet) {
	setIconTextGap(((Number)value).intValue());
	iconTextGapSet = false;
	}
	} else if (propertyName == "contentAreaFilled") {
	if (!contentAreaFilledSet) {
	setContentAreaFilled(((Boolean)value).booleanValue());
	contentAreaFilledSet = false;
	}
	} else {
	super.setUIProperty(propertyName, value);
	}
	}

	/**
	* Returns a string representation of this <code>AbstractButton</code>.
	* This method
	* is intended to be used only for debugging purposes, and the
	* content and format of the returned string may vary between
	* implementations. The returned string may be empty but may not
	* be <code>null</code>.
	* <P>
	* Overriding <code>paramString</code> to provide information about the
	* specific new aspects of the JFC components.
	*
	* @return a string representation of this <code>AbstractButton</code>
	*/
	protected String paramString() {
	String defaultIconString = ((defaultIcon != null)
	&& (defaultIcon != this) ?
	defaultIcon.toString() : "");
	String pressedIconString = ((pressedIcon != null)
	&& (pressedIcon != this) ?
	pressedIcon.toString() : "");
	String disabledIconString = ((disabledIcon != null)
	&& (disabledIcon != this) ?
	disabledIcon.toString() : "");
	String selectedIconString = ((selectedIcon != null)
	&& (selectedIcon != this) ?
	selectedIcon.toString() : "");
	String disabledSelectedIconString = ((disabledSelectedIcon != null) &&
	(disabledSelectedIcon != this) ?
	disabledSelectedIcon.toString()
	: "");
	String rolloverIconString = ((rolloverIcon != null)
	&& (rolloverIcon != this) ?
	rolloverIcon.toString() : "");
	String rolloverSelectedIconString = ((rolloverSelectedIcon != null) &&
	(rolloverSelectedIcon != this) ?
	rolloverSelectedIcon.toString()
	: "");
	String paintBorderString = (paintBorder ? "true" : "false");
	String paintFocusString = (paintFocus ? "true" : "false");
	String rolloverEnabledString = (rolloverEnabled ? "true" : "false");

	return super.paramString() +
	",defaultIcon=" + defaultIconString +
	",disabledIcon=" + disabledIconString +
	",disabledSelectedIcon=" + disabledSelectedIconString +
	",margin=" + margin +
	",paintBorder=" + paintBorderString +
	",paintFocus=" + paintFocusString +
	",pressedIcon=" + pressedIconString +
	",rolloverEnabled=" + rolloverEnabledString +
	",rolloverIcon=" + rolloverIconString +
	",rolloverSelectedIcon=" + rolloverSelectedIconString +
	",selectedIcon=" + selectedIconString +
	",text=" + text;
	}


	private Handler getHandler() {
	if (handler == null) {
	handler = new Handler();
	}
	return handler;
	}


	//
	// Listeners that are added to model
	//
	@SuppressWarnings("serial")
	class Handler implements ActionListener, ChangeListener, ItemListener,
	Serializable {
	//
	// ChangeListener
	//
	public void stateChanged(ChangeEvent e) {
	Object source = e.getSource();

	updateMnemonicProperties();
	if (isEnabled() != model.isEnabled()) {
	setEnabled(model.isEnabled());
	}
	fireStateChanged();
	repaint();
	}

	//
	// ActionListener
	//
	public void actionPerformed(ActionEvent event) {
	fireActionPerformed(event);
	}

	//
	// ItemListener
	//
	public void itemStateChanged(ItemEvent event) {
	fireItemStateChanged(event);
	if (shouldUpdateSelectedStateFromAction()) {
	Action action = getAction();
	if (action != null && AbstractAction.hasSelectedKey(action)) {
	boolean selected = isSelected();
	boolean isActionSelected = AbstractAction.isSelected(
	action);
	if (isActionSelected != selected) {
	action.putValue(Action.SELECTED_KEY, selected);
	}
	}
	}
	}
	}

	///////////////////
	// Accessibility support
	///////////////////
	/**
	* This class implements accessibility support for the
	* <code>AbstractButton</code> class. It provides an implementation of the
	* Java Accessibility API appropriate to button and menu item
	* 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}.
	* @since 1.4
	*/
	protected abstract class AccessibleAbstractButton
	extends AccessibleJComponent implements AccessibleAction,
	AccessibleValue, AccessibleText, AccessibleExtendedComponent {

	/**
	* Returns the accessible name of this object.
	*
	* @return the localized name of the object -- can be
	* <code>null</code> if this
	* object does not have a name
	*/
	public String getAccessibleName() {
	String name = accessibleName;

	if (name == null) {
	name = (String)getClientProperty(AccessibleContext.ACCESSIBLE_NAME_PROPERTY);
	}
	if (name == null) {
	name = AbstractButton.this.getText();
	}
	if (name == null) {
	name = super.getAccessibleName();
	}
	return name;
	}

	/**
	* Get the AccessibleIcons associated with this object if one
	* or more exist. Otherwise return null.
	* @since 1.3
	*/
	public AccessibleIcon [] getAccessibleIcon() {
	Icon defaultIcon = getIcon();

	if (defaultIcon instanceof Accessible) {
	AccessibleContext ac =
	((Accessible)defaultIcon).getAccessibleContext();
	if (ac != null && ac instanceof AccessibleIcon) {
	return new AccessibleIcon[] { (AccessibleIcon)ac };
	}
	}
	return null;
	}

	/**
	* 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 (getModel().isArmed()) {
	states.add(AccessibleState.ARMED);
	}
	if (isFocusOwner()) {
	states.add(AccessibleState.FOCUSED);
	}
	if (getModel().isPressed()) {
	states.add(AccessibleState.PRESSED);
	}
	if (isSelected()) {
	states.add(AccessibleState.CHECKED);
	}
	return states;
	}

	/**
	* Get the AccessibleRelationSet associated with this object if one
	* exists. Otherwise return null.
	* @see AccessibleRelation
	* @since 1.3
	*/
	public AccessibleRelationSet getAccessibleRelationSet() {

	// Check where the AccessibleContext's relation
	// set already contains a MEMBER_OF relation.
	AccessibleRelationSet relationSet
	= super.getAccessibleRelationSet();

	if (!relationSet.contains(AccessibleRelation.MEMBER_OF)) {
	// get the members of the button group if one exists
	ButtonModel model = getModel();
	if (model != null && model instanceof DefaultButtonModel) {
	ButtonGroup group = ((DefaultButtonModel)model).getGroup();
	if (group != null) {
	// set the target of the MEMBER_OF relation to be
	// the members of the button group.
	int len = group.getButtonCount();
	Object [] target = new Object[len];
	Enumeration<AbstractButton> elem = group.getElements();
	for (int i = 0; i < len; i++) {
	if (elem.hasMoreElements()) {
	target[i] = elem.nextElement();
	}
	}
	AccessibleRelation relation =
	new AccessibleRelation(AccessibleRelation.MEMBER_OF);
	relation.setTarget(target);
	relationSet.add(relation);
	}
	}
	}
	return relationSet;
	}

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

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

	/**
	* Returns the number of Actions available in this object. The
	* default behavior of a button is to have one action - toggle
	* the button.
	*
	* @return 1, the number of Actions in this object
	*/
	public int getAccessibleActionCount() {
	return 1;
	}

	/**
	* Return a description of the specified action of the object.
	*
	* @param i zero-based index of the actions
	*/
	public String getAccessibleActionDescription(int i) {
	if (i == 0) {
	return UIManager.getString("AbstractButton.clickText");
	} else {
	return null;
	}
	}

	/**
	* Perform the specified Action on the object
	*
	* @param i zero-based index of actions
	* @return true if the the action was performed; else false.
	*/
	public boolean doAccessibleAction(int i) {
	if (i == 0) {
	doClick();
	return true;
	} else {
	return false;
	}
	}

	/**
	* Get the value of this object as a Number.
	*
	* @return An Integer of 0 if this isn't selected or an Integer of 1 if
	* this is selected.
	* @see AbstractButton#isSelected
	*/
	public Number getCurrentAccessibleValue() {
	if (isSelected()) {
	return Integer.valueOf(1);
	} else {
	return Integer.valueOf(0);
	}
	}

	/**
	* Set the value of this object as a Number.
	*
	* @return True if the value was set.
	*/
	public boolean setCurrentAccessibleValue(Number n) {
	// TIGER - 4422535
	if (n == null) {
	return false;
	}
	int i = n.intValue();
	if (i == 0) {
	setSelected(false);
	} else {
	setSelected(true);
	}
	return true;
	}

	/**
	* Get the minimum value of this object as a Number.
	*
	* @return an Integer of 0.
	*/
	public Number getMinimumAccessibleValue() {
	return Integer.valueOf(0);
	}

	/**
	* Get the maximum value of this object as a Number.
	*
	* @return An Integer of 1.
	*/
	public Number getMaximumAccessibleValue() {
	return Integer.valueOf(1);
	}


	/* AccessibleText ---------- */

	public AccessibleText getAccessibleText() {
	View view = (View)AbstractButton.this.getClientProperty("html");
	if (view != null) {
	return this;
	} else {
	return null;
	}
	}

	/**
	* Given a point in local coordinates, return the zero-based index
	* of the character under that Point. If the point is invalid,
	* this method returns -1.
	*
	* Note: the AbstractButton must have a valid size (e.g. have
	* been added to a parent container whose ancestor container
	* is a valid top-level window) for this method to be able
	* to return a meaningful value.
	*
	* @param p the Point in local coordinates
	* @return the zero-based index of the character under Point p; if
	* Point is invalid returns -1.
	* @since 1.3
	*/
	public int getIndexAtPoint(Point p) {
	View view = (View) AbstractButton.this.getClientProperty("html");
	if (view != null) {
	Rectangle r = getTextRectangle();
	if (r == null) {
	return -1;
	}
	Rectangle2D.Float shape =
	new Rectangle2D.Float(r.x, r.y, r.width, r.height);
	Position.Bias bias[] = new Position.Bias[1];
	return view.viewToModel(p.x, p.y, shape, bias);
	} else {
	return -1;
	}
	}

	/**
	* Determine the bounding box of the character at the given
	* index into the string. The bounds are returned in local
	* coordinates. If the index is invalid an empty rectangle is
	* returned.
	*
	* Note: the AbstractButton must have a valid size (e.g. have
	* been added to a parent container whose ancestor container
	* is a valid top-level window) for this method to be able
	* to return a meaningful value.
	*
	* @param i the index into the String
	* @return the screen coordinates of the character's the bounding box,
	* if index is invalid returns an empty rectangle.
	* @since 1.3
	*/
	public Rectangle getCharacterBounds(int i) {
	View view = (View) AbstractButton.this.getClientProperty("html");
	if (view != null) {
	Rectangle r = getTextRectangle();
	if (r == null) {
	return null;
	}
	Rectangle2D.Float shape =
	new Rectangle2D.Float(r.x, r.y, r.width, r.height);
	try {
	Shape charShape =
	view.modelToView(i, shape, Position.Bias.Forward);
	return charShape.getBounds();
	} catch (BadLocationException e) {
	return null;
	}
	} else {
	return null;
	}
	}

	/**
	* Return the number of characters (valid indicies)
	*
	* @return the number of characters
	* @since 1.3
	*/
	public int getCharCount() {
	View view = (View) AbstractButton.this.getClientProperty("html");
	if (view != null) {
	Document d = view.getDocument();
	if (d instanceof StyledDocument) {
	StyledDocument doc = (StyledDocument)d;
	return doc.getLength();
	}
	}
	return accessibleContext.getAccessibleName().length();
	}

	/**
	* Return the zero-based offset of the caret.
	*
	* Note: That to the right of the caret will have the same index
	* value as the offset (the caret is between two characters).
	* @return the zero-based offset of the caret.
	* @since 1.3
	*/
	public int getCaretPosition() {
	// There is no caret.
	return -1;
	}

	/**
	* Returns the String at a given index.
	*
	* @param part the AccessibleText.CHARACTER, AccessibleText.WORD,
	* or AccessibleText.SENTENCE to retrieve
	* @param index an index within the text >= 0
	* @return the letter, word, or sentence,
	* null for an invalid index or part
	* @since 1.3
	*/
	public String getAtIndex(int part, int index) {
	if (index < 0 \|\| index >= getCharCount()) {
	return null;
	}
	switch (part) {
	case AccessibleText.CHARACTER:
	try {
	return getText(index, 1);
	} catch (BadLocationException e) {
	return null;
	}
	case AccessibleText.WORD:
	try {
	String s = getText(0, getCharCount());
	BreakIterator words = BreakIterator.getWordInstance(getLocale());
	words.setText(s);
	int end = words.following(index);
	return s.substring(words.previous(), end);
	} catch (BadLocationException e) {
	return null;
	}
	case AccessibleText.SENTENCE:
	try {
	String s = getText(0, getCharCount());
	BreakIterator sentence =
	BreakIterator.getSentenceInstance(getLocale());
	sentence.setText(s);
	int end = sentence.following(index);
	return s.substring(sentence.previous(), end);
	} catch (BadLocationException e) {
	return null;
	}
	default:
	return null;
	}
	}

	/**
	* Returns the String after a given index.
	*
	* @param part the AccessibleText.CHARACTER, AccessibleText.WORD,
	* or AccessibleText.SENTENCE to retrieve
	* @param index an index within the text >= 0
	* @return the letter, word, or sentence, null for an invalid
	* index or part
	* @since 1.3
	*/
	public String getAfterIndex(int part, int index) {
	if (index < 0 \|\| index >= getCharCount()) {
	return null;
	}
	switch (part) {
	case AccessibleText.CHARACTER:
	if (index+1 >= getCharCount()) {
	return null;
	}
	try {
	return getText(index+1, 1);
	} catch (BadLocationException e) {
	return null;
	}
	case AccessibleText.WORD:
	try {
	String s = getText(0, getCharCount());
	BreakIterator words = BreakIterator.getWordInstance(getLocale());
	words.setText(s);
	int start = words.following(index);
	if (start == BreakIterator.DONE \|\| start >= s.length()) {
	return null;
	}
	int end = words.following(start);
	if (end == BreakIterator.DONE \|\| end >= s.length()) {
	return null;
	}
	return s.substring(start, end);
	} catch (BadLocationException e) {
	return null;
	}
	case AccessibleText.SENTENCE:
	try {
	String s = getText(0, getCharCount());
	BreakIterator sentence =
	BreakIterator.getSentenceInstance(getLocale());
	sentence.setText(s);
	int start = sentence.following(index);
	if (start == BreakIterator.DONE \|\| start > s.length()) {
	return null;
	}
	int end = sentence.following(start);
	if (end == BreakIterator.DONE \|\| end > s.length()) {
	return null;
	}
	return s.substring(start, end);
	} catch (BadLocationException e) {
	return null;
	}
	default:
	return null;
	}
	}

	/**
	* Returns the String before a given index.
	*
	* @param part the AccessibleText.CHARACTER, AccessibleText.WORD,
	* or AccessibleText.SENTENCE to retrieve
	* @param index an index within the text >= 0
	* @return the letter, word, or sentence, null for an invalid index
	* or part
	* @since 1.3
	*/
	public String getBeforeIndex(int part, int index) {
	if (index < 0 \|\| index > getCharCount()-1) {
	return null;
	}
	switch (part) {
	case AccessibleText.CHARACTER:
	if (index == 0) {
	return null;
	}
	try {
	return getText(index-1, 1);
	} catch (BadLocationException e) {
	return null;
	}
	case AccessibleText.WORD:
	try {
	String s = getText(0, getCharCount());
	BreakIterator words = BreakIterator.getWordInstance(getLocale());
	words.setText(s);
	int end = words.following(index);
	end = words.previous();
	int start = words.previous();
	if (start == BreakIterator.DONE) {
	return null;
	}
	return s.substring(start, end);
	} catch (BadLocationException e) {
	return null;
	}
	case AccessibleText.SENTENCE:
	try {
	String s = getText(0, getCharCount());
	BreakIterator sentence =
	BreakIterator.getSentenceInstance(getLocale());
	sentence.setText(s);
	int end = sentence.following(index);
	end = sentence.previous();
	int start = sentence.previous();
	if (start == BreakIterator.DONE) {
	return null;
	}
	return s.substring(start, end);
	} catch (BadLocationException e) {
	return null;
	}
	default:
	return null;
	}
	}

	/**
	* Return the AttributeSet for a given character at a given index
	*
	* @param i the zero-based index into the text
	* @return the AttributeSet of the character
	* @since 1.3
	*/
	public AttributeSet getCharacterAttribute(int i) {
	View view = (View) AbstractButton.this.getClientProperty("html");
	if (view != null) {
	Document d = view.getDocument();
	if (d instanceof StyledDocument) {
	StyledDocument doc = (StyledDocument)d;
	Element elem = doc.getCharacterElement(i);
	if (elem != null) {
	return elem.getAttributes();
	}
	}
	}
	return null;
	}

	/**
	* Returns the start offset within the selected text.
	* If there is no selection, but there is
	* a caret, the start and end offsets will be the same.
	*
	* @return the index into the text of the start of the selection
	* @since 1.3
	*/
	public int getSelectionStart() {
	// Text cannot be selected.
	return -1;
	}

	/**
	* Returns the end offset within the selected text.
	* If there is no selection, but there is
	* a caret, the start and end offsets will be the same.
	*
	* @return the index into the text of the end of the selection
	* @since 1.3
	*/
	public int getSelectionEnd() {
	// Text cannot be selected.
	return -1;
	}

	/**
	* Returns the portion of the text that is selected.
	*
	* @return the String portion of the text that is selected
	* @since 1.3
	*/
	public String getSelectedText() {
	// Text cannot be selected.
	return null;
	}

	/*
	* Returns the text substring starting at the specified
	* offset with the specified length.
	*/
	private String getText(int offset, int length)
	throws BadLocationException {

	View view = (View) AbstractButton.this.getClientProperty("html");
	if (view != null) {
	Document d = view.getDocument();
	if (d instanceof StyledDocument) {
	StyledDocument doc = (StyledDocument)d;
	return doc.getText(offset, length);
	}
	}
	return null;
	}

	/*
	* Returns the bounding rectangle for the component text.
	*/
	private Rectangle getTextRectangle() {

	String text = AbstractButton.this.getText();
	Icon icon = (AbstractButton.this.isEnabled()) ? AbstractButton.this.getIcon() : AbstractButton.this.getDisabledIcon();

	if ((icon == null) && (text == null)) {
	return null;
	}

	Rectangle paintIconR = new Rectangle();
	Rectangle paintTextR = new Rectangle();
	Rectangle paintViewR = new Rectangle();
	Insets paintViewInsets = new Insets(0, 0, 0, 0);

	paintViewInsets = AbstractButton.this.getInsets(paintViewInsets);
	paintViewR.x = paintViewInsets.left;
	paintViewR.y = paintViewInsets.top;
	paintViewR.width = AbstractButton.this.getWidth() - (paintViewInsets.left + paintViewInsets.right);
	paintViewR.height = AbstractButton.this.getHeight() - (paintViewInsets.top + paintViewInsets.bottom);

	String clippedText = SwingUtilities.layoutCompoundLabel(
	AbstractButton.this,
	getFontMetrics(getFont()),
	text,
	icon,
	AbstractButton.this.getVerticalAlignment(),
	AbstractButton.this.getHorizontalAlignment(),
	AbstractButton.this.getVerticalTextPosition(),
	AbstractButton.this.getHorizontalTextPosition(),
	paintViewR,
	paintIconR,
	paintTextR,
	0);

	return paintTextR;
	}

	// ----- AccessibleExtendedComponent

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

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

	/**
	* Returns the titled border text
	*
	* @return the titled border text, if supported, of the object;
	* otherwise, null
	* @since 1.4
	*/
	public String getTitledBorderText() {
	return super.getTitledBorderText();
	}

	/**
	* Returns key bindings associated with this object
	*
	* @return the key bindings, if supported, of the object;
	* otherwise, null
	* @see AccessibleKeyBinding
	* @since 1.4
	*/
	public AccessibleKeyBinding getAccessibleKeyBinding() {
	int mnemonic = AbstractButton.this.getMnemonic();
	if (mnemonic == 0) {
	return null;
	}
	return new ButtonKeyBinding(mnemonic);
	}

	class ButtonKeyBinding implements AccessibleKeyBinding {
	int mnemonic;

	ButtonKeyBinding(int mnemonic) {
	this.mnemonic = mnemonic;
	}

	/**
	* Returns the number of key bindings for this object
	*
	* @return the zero-based number of key bindings for this object
	*/
	public int getAccessibleKeyBindingCount() {
	return 1;
	}

	/**
	* Returns a key binding for this object. The value returned is an
	* java.lang.Object which must be cast to appropriate type depending
	* on the underlying implementation of the key. For example, if the
	* Object returned is a javax.swing.KeyStroke, the user of this
	* method should do the following:
	* <nf><code>
	* Component c = <get the component that has the key bindings>
	* AccessibleContext ac = c.getAccessibleContext();
	* AccessibleKeyBinding akb = ac.getAccessibleKeyBinding();
	* for (int i = 0; i < akb.getAccessibleKeyBindingCount(); i++) {
	* Object o = akb.getAccessibleKeyBinding(i);
	* if (o instanceof javax.swing.KeyStroke) {
	* javax.swing.KeyStroke keyStroke = (javax.swing.KeyStroke)o;
	* <do something with the key binding>
	* }
	* }
	* </code></nf>
	*
	* @param i zero-based index of the key bindings
	* @return a javax.lang.Object which specifies the key binding
	* @exception IllegalArgumentException if the index is
	* out of bounds
	* @see #getAccessibleKeyBindingCount
	*/
	public java.lang.Object getAccessibleKeyBinding(int i) {
	if (i != 0) {
	throw new IllegalArgumentException();
	}
	return KeyStroke.getKeyStroke(mnemonic, 0);
	}
	}
	}
	}

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