com.hydra.projects.XViewer.Main.images.MyImageCache.java Source code

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Here is the source code for com.hydra.projects.XViewer.Main.images.MyImageCache.java

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/*******************************************************************************
 * Copyright (c) 2004, 2007 Boeing.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Boeing - initial API and implementation
 *******************************************************************************/
package com.hydra.projects.XViewer.Main.images;

import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;

/**
 * @author Donald G. Dunne
 */
public class MyImageCache {

    static Map<String, Image> imageCache = new HashMap<String, Image>();
    static Map<String, ImageDescriptor> imageDescriptorCache = new HashMap<String, ImageDescriptor>();

    public static Image getImage(String imageName) {
        if (!imageCache.containsKey(imageName)) {
            imageCache.put(imageName, getImageDescriptor(imageName).createImage());
        }
        return imageCache.get(imageName);
    }

    public static ImageDescriptor getImageDescriptor(String imageName) {
        if (!imageDescriptorCache.containsKey(imageName)) {
            URL url = MyImageCache.class.getResource(imageName);
            imageDescriptorCache.put(imageName, ImageDescriptor.createFromURL(url));
        }
        return imageDescriptorCache.get(imageName);
    }

}