bundles/common/org.eclipse.apogy.common.topology.addons.dynamics.ui/src/org/eclipse/apogy/common/topology/addons/dynamics/ui/Activator.java

/*******************************************************************************
 * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency 
 * 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:
 *     Pierre Allard,
 *     Regent L'Archeveque, 
 *     Sebastien Gemme - initial API and implementation
 * SPDX-License-Identifier: EPL-1.0
 *     
 *******************************************************************************/
package org.eclipse.apogy.common.topology.addons.dynamics.ui;

import java.net.URL;

import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

public class Activator extends AbstractUIPlugin {

	// The plug-in ID
	public static final String ID = "org.eclipse.apogy.common.topology.addons.dynamics.ui"; //$NON-NLS-1$

	// The shared instance
	private static Activator plugin;
	private static BundleContext context;

	/**
	 * The constructor
	 */
	public Activator() {
		plugin = this;
	}

	public static BundleContext getContext() {
		return context;
	}

	/*
	 * (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;
		Activator.context = context;
	}

	/*
	 * (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);
		Activator.context = null;
	}

	/**
	 * Returns the shared instance
	 *
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}

	/**
	 * Returns an image descriptor for the image file at the given plug-in relative
	 * path
	 *
	 * @param path the path
	 * @return the image descriptor
	 */
	public ImageDescriptor getImageDescriptor(String path) {
		URL url = FileLocator.find(Activator.context.getBundle(), new Path(path), null);
		return ImageDescriptor.createFromURL(url);
	}
}