| /******************************************************************************* |
| * 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(); |
| } |
| } |