bundles/org.simantics.structural.ui/src/org/simantics/structural/ui/Activator.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.structural.ui;
  13
  14 import org.eclipse.jface.resource.ImageDescriptor;
  15 import org.eclipse.jface.resource.JFaceResources;
  16 import org.eclipse.jface.resource.LocalResourceManager;
  17 import org.eclipse.jface.resource.ResourceManager;
  18 import org.eclipse.swt.widgets.Display;
  19 import org.eclipse.ui.plugin.AbstractUIPlugin;
  20 import org.osgi.framework.Bundle;
  21 import org.osgi.framework.BundleContext;
  22
  23 /**
  24  * The activator class controls the plug-in life cycle
  25  */
  26 public class Activator extends AbstractUIPlugin {
  27
  28     // The plug-in ID
  29     public static final String PLUGIN_ID = "org.simantics.structural.ui";
  30
  31     // The shared instance
  32     private static Activator plugin;
  33
  34     private static LocalResourceManager resourceManager;
  35
  36     public static ImageDescriptor SYNCED_ICON;
  37     public static ImageDescriptor SHOW_ALL_CHILDREN_ICON;
  38     public static ImageDescriptor LOCK;
  39
  40     /**
  41      * The constructor
  42      */
  43     public Activator() {
  44     }
  45
  46     /*
  47      * (non-Javadoc)
  48      * @see org.eclipse.core.runtime.Plugins#start(org.osgi.framework.BundleContext)
  49      */
  50     @Override
  51     public void start(BundleContext context) throws Exception {
  52         super.start(context);
  53         plugin = this;
  54
  55         Bundle bundle = context.getBundle();
  56
  57         SYNCED_ICON = ImageDescriptor.createFromURL(bundle.getResource("icons/synced.gif"));
  58         SHOW_ALL_CHILDREN_ICON = ImageDescriptor.createFromURL(bundle.getResource("icons/text_linespacing.png"));
  59         LOCK = ImageDescriptor.createFromURL(bundle.getResource("icons/lock.png"));
  60     }
  61
  62     /*
  63      * (non-Javadoc)
  64      * @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
  65      */
  66     @Override
  67     public void stop(BundleContext context) throws Exception {
  68         if (resourceManager != null) {
  69             resourceManager.dispose();
  70             resourceManager = null;
  71         }
  72
  73         plugin = null;
  74         super.stop(context);
  75     }
  76
  77     /**
  78      * Returns the shared instance
  79      *
  80      * @return the shared instance
  81      */
  82     public static Activator getDefault() {
  83         return plugin;
  84     }
  85
  86     public static ResourceManager initializeResourceManager(Display display) {
  87         if (resourceManager == null) {
  88             resourceManager = new LocalResourceManager(JFaceResources.getResources(display));
  89         }
  90         return resourceManager;
  91     }
  92
  93     public static ResourceManager getResources() {
  94         if (resourceManager == null)
  95             throw new IllegalStateException("ResourceManager of bundle '" + PLUGIN_ID + "' is not initialized.");
  96         return resourceManager;
  97     }
  98
  99 }