| /******************************************************************************* |
| * Copyright (c) 2006, 2017 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.internal.ui.synchronize; |
| |
| import org.eclipse.compare.CompareConfiguration; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.resource.LocalResourceManager; |
| import org.eclipse.jface.resource.ResourceManager; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.team.core.mapping.ISynchronizationContext; |
| import org.eclipse.team.internal.ui.TeamUIPlugin; |
| import org.eclipse.team.ui.synchronize.ISynchronizePageConfiguration; |
| |
| public class ImageManager { |
| |
| private static final String PROP_IMAGE_MANAGER = TeamUIPlugin.ID + ".imageManager"; //$NON-NLS-1$ |
| |
| private LocalResourceManager imageManager; |
| // Contains direction images |
| private CompareConfiguration compareConfig = new CompareConfiguration(); |
| private boolean disposed = false; |
| |
| public synchronized static ImageManager getImageManager(ISynchronizationContext context, ISynchronizePageConfiguration configuration) { |
| ImageManager manager = (ImageManager)context.getCache().get(PROP_IMAGE_MANAGER); |
| if (manager == null || manager.disposed) { |
| final ImageManager newRegistry = new ImageManager(); |
| context.getCache().put(PROP_IMAGE_MANAGER, newRegistry); |
| Viewer v = getViewer(configuration); |
| if (v != null) { |
| // It is best to dispose the images when the view is disposed (see bug 198383) |
| v.getControl().addDisposeListener(e -> newRegistry.dispose()); |
| } else { |
| // The viewer wasn't available so we'll dispose when the context is disposed |
| context.getCache().addCacheListener(cache -> newRegistry.dispose()); |
| } |
| manager = newRegistry; |
| } |
| return manager; |
| } |
| |
| private static Viewer getViewer(ISynchronizePageConfiguration configuration) { |
| if (configuration == null) |
| return null; |
| if (configuration.getPage() == null) |
| return null; |
| return configuration.getPage().getViewer(); |
| } |
| |
| public Image getImage(ImageDescriptor descriptor) { |
| if (descriptor == null || disposed) |
| return null; |
| ResourceManager manager = getResourceManager(); |
| Image image = manager.createImage(descriptor); |
| return image; |
| } |
| |
| private synchronized ResourceManager getResourceManager() { |
| if (imageManager == null) { |
| imageManager = new LocalResourceManager(JFaceResources.getResources()); |
| } |
| return imageManager; |
| } |
| |
| public void dispose() { |
| disposed = true; |
| compareConfig.dispose(); |
| if (imageManager != null) { |
| imageManager.dispose(); |
| } |
| } |
| |
| public Image getImage(Image base, int compareKind) { |
| if (disposed) |
| return null; |
| return compareConfig.getImage(base, compareKind); |
| } |
| } |