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Java > Open Source Codes > org > eclipse > pde > internal > ui > editor > site > SiteLabelProvider


1 /*******************************************************************************
2  * Copyright (c) 2003, 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.pde.internal.ui.editor.site;
12
13 import org.eclipse.jface.viewers.LabelProvider;
14 import org.eclipse.pde.internal.core.PDECore;
15 import org.eclipse.pde.internal.core.isite.ISiteCategoryDefinition;
16 import org.eclipse.pde.internal.core.isite.ISiteFeature;
17 import org.eclipse.pde.internal.ui.PDELabelProvider;
18 import org.eclipse.pde.internal.ui.PDEPlugin;
19 import org.eclipse.pde.internal.ui.PDEPluginImages;
20 import org.eclipse.swt.graphics.Image;
21 import org.eclipse.ui.forms.editor.IFormPage;
22
23 class SiteLabelProvider extends LabelProvider {
24
25     private PDELabelProvider fSharedProvider;
26
27     /**
28      * Comment for <code>fLabelProvider</code>
29      */
30     private Image fSiteFeatureImage;
31
32     private Image fMissingSiteFeatureImage;
33     
34     private Image fPageImage;
35
36     private Image fCatDefImage;
37
38     public SiteLabelProvider() {
39         fSiteFeatureImage = PDEPluginImages.DESC_FEATURE_OBJ.createImage();
40         fMissingSiteFeatureImage = PDEPluginImages.DESC_NOREF_FEATURE_OBJ.createImage();
41         fCatDefImage = PDEPluginImages.DESC_CATEGORY_OBJ.createImage();
42         fPageImage = PDEPluginImages.DESC_PAGE_OBJ.createImage();
43         fSharedProvider = PDEPlugin.getDefault().getLabelProvider();
44         fSharedProvider.connect(this);
45     }
46
47
48     public Image getImage(Object JavaDoc element) {
49         if (element instanceof ISiteCategoryDefinition)
50             return fCatDefImage;
51         if (element instanceof SiteFeatureAdapter) {
52             if (PDECore.getDefault().getFeatureModelManager().findFeatureModelRelaxed(
53                     ((SiteFeatureAdapter) element).feature.getId(),
54                     ((SiteFeatureAdapter) element).feature.getVersion()) == null)
55                 return fMissingSiteFeatureImage;
56             return fSiteFeatureImage;
57         }
58         if (element instanceof IFormPage)
59             return fPageImage;
60         return fSharedProvider.getImage(element);
61     }
62
63     public String JavaDoc getText(Object JavaDoc element) {
64         if (element instanceof ISiteCategoryDefinition)
65             return ((ISiteCategoryDefinition) element).getName();
66         if (element instanceof SiteFeatureAdapter) {
67             ISiteFeature feature = ((SiteFeatureAdapter) element).feature;
68             return fSharedProvider.getObjectText(feature);
69         }
70         if (element instanceof IFormPage)
71             return ((IFormPage)element).getTitle();
72         return fSharedProvider.getText(element);
73     }
74
75     /* (non-Javadoc)
76      * @see org.eclipse.jface.viewers.BaseLabelProvider#dispose()
77      */
78     public void dispose() {
79         fSharedProvider.disconnect(this);
80         // Dispose of images
81 if ((fCatDefImage != null) &&
82                 (fCatDefImage.isDisposed() == false)) {
83             fCatDefImage.dispose();
84             fCatDefImage = null;
85         }
86         if ((fSiteFeatureImage != null) &&
87                 (fSiteFeatureImage.isDisposed() == false)) {
88             fSiteFeatureImage.dispose();
89             fSiteFeatureImage = null;
90         }
91         if ((fMissingSiteFeatureImage != null) &&
92                 (fMissingSiteFeatureImage.isDisposed() == false)) {
93             fMissingSiteFeatureImage.dispose();
94             fMissingSiteFeatureImage = null;
95         }
96         if ((fPageImage != null) &&
97                 (fPageImage.isDisposed() == false)) {
98             fPageImage.dispose();
99             fPageImage = null;
100         }
101         super.dispose();
102     }
103 }
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