BrowseRefactoringHistoryLabelProvider


1   /*******************************************************************************
2    * Copyright (c) 2006, 2007 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.ltk.internal.ui.refactoring.history;
12  
13  import org.eclipse.core.runtime.Assert;
14  
15  import org.eclipse.core.resources.ResourcesPlugin;
16  
17  import org.eclipse.swt.graphics.Image;
18  
19  import org.eclipse.jface.viewers.ILabelProvider;
20  
21  import org.eclipse.ui.model.WorkbenchLabelProvider;
22  
23  import org.eclipse.ltk.ui.refactoring.history.RefactoringHistoryControlConfiguration;
24  import org.eclipse.ltk.ui.refactoring.history.RefactoringHistoryLabelProvider;
25  
26  /**
27   * Label provider for the browse refactoring history control
28   * 
29   * @since 3.2
30   */
31  public final class BrowseRefactoringHistoryLabelProvider extends RefactoringHistoryLabelProvider {
32  
33      /** The delegate label provider */
34      private final ILabelProvider fDelegateLabelProvider;
35  
36      /** The workbench label provider */
37      private final ILabelProvider fWorkbenchLabelProvider= new WorkbenchLabelProvider();
38  
39      /**
40       * Creates a new browse refactoring history label provider.
41       * 
42       * @param configuration
43       *            the refactoring history control configuration
44       */
45      public BrowseRefactoringHistoryLabelProvider(final RefactoringHistoryControlConfiguration configuration) {
46          super(configuration);
47          Assert.isNotNull(configuration);
48          fDelegateLabelProvider= configuration.getLabelProvider();
49      }
50  
51      /**
52       * {@inheritDoc}
53       */
54      public Image getImage(final Object   element) {
55          if (element instanceof RefactoringHistoryProject) {
56              final RefactoringHistoryProject project= (RefactoringHistoryProject) element;
57              return fWorkbenchLabelProvider.getImage(ResourcesPlugin.getWorkspace().getRoot().getProject(project.getProject()));
58          }
59          return fDelegateLabelProvider.getImage(element);
60      }
61  
62      /**
63       * {@inheritDoc}
64       */
65      public String   getText(final Object   element) {
66          if (element instanceof RefactoringHistoryProject) {
67              final RefactoringHistoryProject project= (RefactoringHistoryProject) element;
68              return fWorkbenchLabelProvider.getText(ResourcesPlugin.getWorkspace().getRoot().getProject(project.getProject()));
69          }
70          return fDelegateLabelProvider.getText(element);
71      }
72      
73      /* (non-Javadoc)
74       * @see org.eclipse.ltk.ui.refactoring.history.RefactoringHistoryLabelProvider#dispose()
75       */
76      public void dispose() {
77          if (fDelegateLabelProvider != null) {
78              fDelegateLabelProvider.dispose();
79          }
80          if (fWorkbenchLabelProvider != null) {
81              fWorkbenchLabelProvider.dispose();
82          }
83          super.dispose();
84      }
85  }
86
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