content: /*
   * Copyright (c) 2016, Alex Blewitt, Bandlem Ltd
   * Copyright (c) 2016, Packt Publishing Ltd
   *
   * 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
   */
  package com.packtpub.e4.hello.ui;
  
  import org.eclipse.jface.resource.ImageDescriptor;
  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 = "com.packtpub.e4.hello.ui"; //$NON-NLS-1$
  
  	// The shared instance
  	private static Activator plugin;
  	
  	/**
  	 * The constructor
  	 */
  	public Activator() {
  	}
  
  	/*
  	 * (non-Javadoc)
  	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
  	 */
  	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)
  	 */
  	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 an image descriptor for the image file at the given
  	 * plug-in relative path
  	 *
  	 * @param path the path
  	 * @return the image descriptor
  	 */
  	public static ImageDescriptor getImageDescriptor(String path) {
  		return imageDescriptorFromPlugin(PLUGIN_ID, path);
  	}
  }
  