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/*******************************************************************************
* Copyright (c) 2013 Mia-Software.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Gregoire Dupe (Mia-Software) - Bug 406569 - Image provider factory
* Gregoire Dupe (Mia-Software) - Bug 423611 - ImageProvider doesn't use singleton instance
* Gregoire Dupe (Mia-Software) - Bug 424122 - [Table] Images, fonts and colors are not shared between the instances of table
******************************************************************************/
package org.eclipse.emf.facet.util.swt.internal.imageprovider;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.runtime.Plugin;
import org.eclipse.emf.facet.util.core.DebugUtils;
import org.eclipse.emf.facet.util.core.Logger;
import org.eclipse.emf.facet.util.swt.imageprovider.IImageProvider;
import org.eclipse.emf.facet.util.swt.internal.Activator;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.graphics.Image;
import org.osgi.framework.Bundle;
public final class ImageProvider implements IImageProvider {
private static final boolean DEBUG = DebugUtils.getDebugStatus(Activator.getDefault());
private final Map<Object, Image> map = new HashMap<Object, Image>();
private final Plugin activator;
ImageProvider(final Plugin activator) {
this.activator = activator;
}
public ImageDescriptor createImageDescriptor(final String resourcePath) {
ImageDescriptor result;
final URL url = this.activator.getBundle().getResource(resourcePath);
if (url == null) {
Logger.logError(NLS.bind("Resource not found: {0}", //$NON-NLS-1$
resourcePath), this.activator);
result = ImageDescriptor.getMissingImageDescriptor();
} else {
result = ImageDescriptor.createFromURL(url);
}
return result;
}
public Image getImage(final String path) {
Image result = this.map.get(path);
if (result == null) {
result = createImageDescriptor(path).createImage();
this.map.put(path, result);
if (DEBUG) {
final Bundle bundle = this.activator.getBundle();
final String bundleId = bundle.getSymbolicName();
final String message = String.format("New image loaded: %s:%s", //$NON-NLS-1$
bundleId, path);
DebugUtils.debug(message);
}
}
return result;
}
public Image getImage(final ImageDescriptor imgDescriptor) {
Image result = this.map.get(imgDescriptor);
if (result == null) {
result = imgDescriptor.createImage();
this.map.put(imgDescriptor, result);
if (DEBUG) {
final Bundle bundle = this.activator.getBundle();
final String bundleId = bundle.getSymbolicName();
final String message = String.format("New image loaded from an image descriptor (bundle=%s)", //$NON-NLS-1$
bundleId);
DebugUtils.debug(message);
}
}
return result;
}
}
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