Attachment #128215 for bug #267844

Lines 12-17 Link Here

(-)src/org/eclipse/jface/resource/ImageDescriptor.java (-1 / +37 lines)
12		12
13	import java.net.URL;	13	import java.net.URL;
14		14
		15	import org.eclipse.jface.internal.JFaceActivator;
15	import org.eclipse.swt.SWTException;	16	import org.eclipse.swt.SWTException;
16	import org.eclipse.swt.graphics.Device;	17	import org.eclipse.swt.graphics.Device;
17	import org.eclipse.swt.graphics.Image;	18	import org.eclipse.swt.graphics.Image;
Lines 19-24 Link Here
19	import org.eclipse.swt.graphics.PaletteData;	20	import org.eclipse.swt.graphics.PaletteData;
20	import org.eclipse.swt.graphics.RGB;	21	import org.eclipse.swt.graphics.RGB;
21	import org.eclipse.swt.widgets.Display;	22	import org.eclipse.swt.widgets.Display;
		23	import org.osgi.framework.Bundle;
		24	import org.osgi.framework.BundleContext;
		25	import org.osgi.framework.ServiceReference;
22		26
23	/**	27	/**
24	* An image descriptor is an object that knows how to create	28	* An image descriptor is an object that knows how to create
Lines 155-161 Link Here
155	if (url == null) {	159	if (url == null) {
156	return getMissingImageDescriptor();	160	return getMissingImageDescriptor();
157	}	161	}
158	return new URLImageDescriptor(url);	162	return new URLImageDescriptor(transformImageLocation(url));
159	}	163	}
160		164
161	/* (non-Javadoc)	165	/* (non-Javadoc)
Lines 326-329 Link Here
326	public static ImageDescriptor getMissingImageDescriptor() {	330	public static ImageDescriptor getMissingImageDescriptor() {
327	return MissingImageDescriptor.getInstance();	331	return MissingImageDescriptor.getInstance();
328	}	332	}
		333
		334	/**
		335	* Transforms the {@link URL} by using an available implementation of
		336	* {@link IImageLocationTransformer}.
		337	*
		338	* @param url
		339	* Given image {@link URL}.
		340	* @return Transformed {@link URL}.
		341	*/
		342	private static URL transformImageLocation(URL url) {
		343	URL result = url;
		344
		345	Bundle bundle = JFaceActivator.getBundle();
		346	if (bundle != null) {
		347	BundleContext bundleContext = JFaceActivator.getBundle()
		348	.getBundleContext();
		349	if (bundleContext != null) {
		350	ServiceReference serviceReference = bundleContext
		351	.getServiceReference(IImageLocationTransformer.class
		352	.getName());
		353	if (serviceReference != null) {
		354	Object service = bundleContext.getService(serviceReference);
		355	if (service != null) {
		356	IImageLocationTransformer transformer = (IImageLocationTransformer) service;
		357	result = transformer.transform(url);
		358	}
		359	}
		360	}
		361	}
		362
		363	return result;
		364	}
329	}	365	}




/*******************************************************************************
 * Copyright (c) 2009 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/

package org.eclipse.jface.resource;

import java.net.URL;

/**
 * An image location {@link URL} transformer. The implementation of this service
 * influence the loaded image within {@link ImageDescriptor#createFromURL(URL)}.
 * 
 * @since 3.4
 */
public interface IImageLocationTransformer {

	/**
	 * Transforms the given image location {@link URL} and returns the result.
	 * 
	 * @param url
	 *            Image's location {@link URL}.
	 * @return Transformed image location {@link URL}.
	 */
	public URL transform(URL url);

}

Return to bug 267844

Added Link Here

(-)src/org/eclipse/jface/resource/IImageLocationTransformer.java (+33 lines)
1	/*******************************************************************************
2	* Copyright (c) 2009 IBM Corporation and others.
3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at
6	* http://www.eclipse.org/legal/epl-v10.html
7	*
8	* Contributors:
9	* IBM Corporation - initial API and implementation
10	******************************************************************************/
11
12	package org.eclipse.jface.resource;
13
14	import java.net.URL;
15
16	/**
17	* An image location {@link URL} transformer. The implementation of this service
18	* influence the loaded image within {@link ImageDescriptor#createFromURL(URL)}.
19	*
20	* @since 3.4
21	*/
22	public interface IImageLocationTransformer {
23
24	/**
25	* Transforms the given image location {@link URL} and returns the result.
26	*
27	* @param url
28	* Image's location {@link URL}.
29	* @return Transformed image location {@link URL}.
30	*/
31	public URL transform(URL url);
32
33	}