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/*******************************************************************************
* Copyright (c) 2002 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v0.5
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v05.html
*
* Contributors:
* IBM - Initial implementation
******************************************************************************/
package org.eclipse.team.internal.ccvs.ui;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.swt.graphics.Image;
/**
* Maintains a cache of OverlayIcons.
*/
public class OverlayIconCache {
private Map /*from OverlayIcon to Image*/ cache = new HashMap();
/**
* Returns and caches an image corresponding to the specified icon.
* @param icon the icon
* @return the image
*/
public Image getImageFor(OverlayIcon icon) {
Image image = (Image) cache.get(icon);
if (image == null) {
image = icon.createImage();
cache.put(icon, image);
}
return image;
}
/**
* Disposes of all images in the cache.
*/
public void disposeAll() {
for (Iterator it = cache.values().iterator(); it.hasNext();) {
Image image = (Image) it.next();
image.dispose();
}
cache.clear();
}
}
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