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Laf-Widget provides support for common "feel" widgets in look-and-feel libraries
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/*
 * Copyright (c) 2005-2010 Laf-Widget Kirill Grouchnikov. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 *  o Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer. 
 *     
 *  o Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution. 
 *     
 *  o Neither the name of Laf-Widget Kirill Grouchnikov nor the names of 
 *    its contributors may be used to endorse or promote products derived 
 *    from this software without specific prior written permission. 
 *     
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */
package org.pushingpixels.lafwidget.animation.effects;

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

import javax.swing.AbstractButton;

import org.pushingpixels.lafwidget.LafWidgetAdapter;

/**
 * Widget that tracks changes to the button for ghost effects.
 * 
 * @author Kirill Grouchnikov
 */
public class GhostAnimationWidget extends LafWidgetAdapter {
	/**
	 * Model change listener for ghost image effects.
	 */
	private GhostingListener ghostModelChangeListener;

	/**
	 * Property change listener. Listens on changes to the
	 * {@link AbstractButton#MODEL_CHANGED_PROPERTY} property.
	 */
	protected PropertyChangeListener ghostPropertyListener;

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.pushingpixels.lafwidget.LafWidget#requiresCustomLafSupport()
	 */
	public boolean requiresCustomLafSupport() {
		return false;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.pushingpixels.lafwidget.LafWidgetAdapter#installDefaults()
	 */
	@Override
	public void installDefaults() {
		this.jcomp.setRolloverEnabled(true);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.pushingpixels.lafwidget.LafWidgetAdapter#installListeners()
	 */
	@Override
	public void installListeners() {
		this.ghostPropertyListener = new PropertyChangeListener() {
			public void propertyChange(PropertyChangeEvent evt) {
				if (AbstractButton.MODEL_CHANGED_PROPERTY.equals(evt
						.getPropertyName())) {
					if (ghostModelChangeListener != null)
						ghostModelChangeListener.unregisterListeners();
					ghostModelChangeListener = new GhostingListener(jcomp,
							jcomp.getModel());
					ghostModelChangeListener.registerListeners();
				}

				// if ("icon.bounds".equals(evt.getPropertyName())) {
				// try {
				// throw new IOException(evt.getNewValue().toString());
				// } catch (Exception ie) {
				// ie.printStackTrace();
				// }
				// }
			}
		};
		jcomp.addPropertyChangeListener(this.ghostPropertyListener);

		this.ghostModelChangeListener = new GhostingListener(jcomp, jcomp
				.getModel());
		this.ghostModelChangeListener.registerListeners();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.pushingpixels.lafwidget.LafWidgetAdapter#uninstallListeners()
	 */
	@Override
	public void uninstallListeners() {
		jcomp.removePropertyChangeListener(this.ghostPropertyListener);
		this.ghostPropertyListener = null;

		this.ghostModelChangeListener.unregisterListeners();
		this.ghostModelChangeListener = null;
	}

}