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/*******************************************************************************
* 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.*;
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);
}
}
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