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/*****************************************************************************
* Copyright (c) 2011 CEA LIST.
*
* 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.widgets.gmf;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
/**
* The activator class controls the plug-in life cycle
*/
public class Activator extends AbstractUIPlugin {
// The plug-in ID
public static final String PLUGIN_ID = "org.eclipse.papyrus.widgets.gmf"; //$NON-NLS-1$
// The shared instance
private static Activator plugin;
/**
* The constructor
*/
public Activator() {
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
*/
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
plugin = this;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
*/
@Override
public void stop(BundleContext context) throws Exception {
plugin = null;
super.stop(context);
}
/**
* Returns the shared instance
*
* @return the shared instance
*/
public static Activator getDefault() {
return plugin;
}
/**
* Returns the image at the given path from this plugin
*
* @param path
* the path of the image to be displayed
* @return The Image at the given location, or null if it couldn't be found
*/
public Image getImage(String path) {
return getImage(PLUGIN_ID, path);
}
/**
* Returns the image from the given image descriptor
*
* @param pluginId
* The plugin in which the image is located
* @param path
* The path to the image from the plugin
* @return
* The Image at the given location, or null if it couldn't be found
*/
public Image getImage(String pluginId, String path) {
final ImageRegistry registry = getImageRegistry();
String key = pluginId + "/" + path; //$NON-NLS-1$
Image image = registry.get(key);
if(image == null) {
registry.put(key, AbstractUIPlugin.imageDescriptorFromPlugin(pluginId, path));
image = registry.get(key);
}
return image;
}
/**
* Returns the image from the given path
*
* @param imagePath
* The path of the image, in the form /<plug-in ID>/<path to the image>
* @return
* The Image at the given location, or null if none was found
*/
public Image getImageFromPlugin(String imagePath) {
if(imagePath.startsWith("/")) { //$NON-NLS-1$
String pluginId, path;
imagePath = imagePath.substring(1, imagePath.length());
pluginId = imagePath.substring(0, imagePath.indexOf("/")); //$NON-NLS-1$
path = imagePath.substring(imagePath.indexOf("/"), imagePath.length()); //$NON-NLS-1$
return getImage(pluginId, path);
} else {
return getImage(imagePath);
}
}
}
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