ImageUtil.java

/*******************************************************************************
 * Copyright (c) 2006-2011 Gluster, Inc. <http://www.gluster.com>
 * This file is part of Gluster Management Console.
 *
 * Gluster Management Console is free software; you can redistribute
 * it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * Gluster Management Console 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see
 * <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package org.gluster.storage.management.console.utils;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.gluster.storage.management.console.Application;
import org.gluster.storage.management.core.utils.LRUCache;


/**
 *
 */
public class ImageUtil {
	private static final LRUCache<String, Image> imageCache = new LRUCache<String, Image>(20);
	
	public ImageDescriptor getImageDescriptor(String imagePath) {
		return AbstractUIPlugin.imageDescriptorFromPlugin(Application.PLUGIN_ID, imagePath);
	}

	public synchronized Image getImage(String imagePath) {
		if(imageCache.containsKey(imagePath)) {
			return imageCache.get(imagePath);
		}
		return createImage(imagePath);
	}
	
	private Image createImage(String imagePath) {
		Image image = getImageDescriptor(imagePath).createImage();
		imageCache.put(imagePath, image);
		return image;
	}
}