ActivityLabelProvider


1   /*******************************************************************************
2    * Copyright (c) 2003, 2006 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  package org.eclipse.ui.internal.activities.ws;
12  
13  import org.eclipse.jface.viewers.LabelProvider;
14  import org.eclipse.swt.graphics.Image;
15  import org.eclipse.ui.activities.IActivity;
16  import org.eclipse.ui.activities.IActivityManager;
17  import org.eclipse.ui.activities.NotDefinedException;
18  
19  /**
20   * Provides labels for <code>IActivity</code> objects. They may be passed
21   * directly or as <code>String</code> identifiers that are matched against
22   * the activity manager.
23   * 
24   * @since 3.0
25   */
26  public class ActivityLabelProvider extends LabelProvider {
27  
28      private IActivityManager activityManager;
29  
30      /**
31       * Create a new instance of the receiver.
32       * 
33       * @param activityManager
34       * @since 3.0
35       */
36      public ActivityLabelProvider(IActivityManager activityManager) {
37          this.activityManager = activityManager;
38      }
39  
40      /**
41       * @param activity
42       * @return
43       */
44      private String   getActivityText(IActivity activity) {
45          try {
46              return activity.getName();
47          } catch (NotDefinedException e) {
48              return activity.getId();
49          }
50      }
51  
52      /*
53       * (non-Javadoc)
54       * 
55       * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
56       */
57      public Image getImage(Object   element) {
58          return null;
59      }
60  
61      /*
62       * (non-Javadoc)
63       * 
64       * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
65       */
66      public String   getText(Object   element) {
67          if (element instanceof String  ) {
68              return getActivityText(activityManager
69                      .getActivity((String  ) element));
70          } else if (element instanceof IActivity) {
71              return getActivityText((IActivity) element);
72          } else {
73              throw new IllegalArgumentException  ();
74          }
75      }
76  }
77
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