| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.ui.views.markers.internal; |
| |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.resource.ImageRegistry; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * Manages images and image descriptors. |
| */ |
| public class ImageFactory { |
| |
| private static ImageRegistry imageRegistry = new ImageRegistry(); |
| private static Map map = new HashMap(); |
| |
| private static ImageDescriptor create(String path) { |
| try { |
| URL url = Platform.getPlugin(PlatformUI.PLUGIN_ID).getDescriptor().getInstallURL(); |
| url = new URL(url, "icons/full/" + path); //$NON-NLS-1$ |
| return ImageDescriptor.createFromURL(url); |
| } catch (MalformedURLException eMalformedURL) { |
| return null; |
| } |
| } |
| |
| /** |
| * Returns an image for the given path or <code>null</code> if an image could |
| * not be created. |
| * |
| * @param path the path of the image relative to "org.eclipse.ui/icons/full" |
| * @return the image located at the specified path or <code>null</code> if |
| * no image could be created. |
| */ |
| public static Image getImage(String path) { |
| Image image = (Image) imageRegistry.get(path); |
| |
| if (image == null) { |
| ImageDescriptor imageDescriptor = getImageDescriptor(path); |
| |
| if (imageDescriptor != null) { |
| image = imageDescriptor.createImage(false); |
| |
| if (image == null) |
| System.err.println(ImageFactory.class + ": error creating image for " + path); //$NON-NLS-1$ |
| |
| imageRegistry.put(path, image); |
| } |
| } |
| |
| return image; |
| } |
| |
| /** |
| * Returns an image descriptor for the given path or <code>null</code> if no |
| * image could be found. |
| * |
| * @param path the path of the image relative to "org.eclipse.ui/icons/full" |
| * @return an image descriptor or <code>null</code> if no image was found at the |
| * specified path. |
| */ |
| public static ImageDescriptor getImageDescriptor(String path) { |
| ImageDescriptor imageDescriptor = (ImageDescriptor) map.get(path); |
| |
| if (imageDescriptor == null) { |
| imageDescriptor = create(path); |
| map.put(path, imageDescriptor); |
| } |
| |
| return imageDescriptor; |
| } |
| } |