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Java > Open Source Codes > org > eclipse > ui > internal > navigator > filters > CommonFilterLabelProvider


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
12 package org.eclipse.ui.internal.navigator.filters;
13
14 import org.eclipse.jface.viewers.ILabelProvider;
15 import org.eclipse.jface.viewers.ILabelProviderListener;
16 import org.eclipse.jface.viewers.ITableLabelProvider;
17 import org.eclipse.swt.graphics.Image;
18 import org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptor;
19 import org.eclipse.ui.internal.navigator.extensions.NavigatorContentDescriptorManager;
20 import org.eclipse.ui.navigator.ICommonFilterDescriptor;
21 import org.eclipse.ui.navigator.INavigatorContentDescriptor;
22 /**
23  *
24  * <p>
25  * <strong>EXPERIMENTAL</strong>. This class or interface has been added as part of a work in
26  * progress. There is a guarantee neither that this API will work nor that it will remain the same.
27  * Please do not use this API without consulting with the Platform/UI team.
28  * </p>
29  *
30  * @since 3.2
31  *
32  */
33 public class CommonFilterLabelProvider implements ITableLabelProvider, ILabelProvider {
34
35     private static final NavigatorContentDescriptorManager CONTENT_DESCRIPTOR_REGISTRY = NavigatorContentDescriptorManager.getInstance();
36
37      
38
39     /*
40      * (non-Javadoc)
41      *
42      * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
43      */
44     public Image getImage(Object JavaDoc element) {
45         if (element instanceof NavigatorContentDescriptor) {
46             return CONTENT_DESCRIPTOR_REGISTRY.getImage(((INavigatorContentDescriptor) element).getId());
47         }
48         return null;
49     }
50
51     /*
52      * (non-Javadoc)
53      *
54      * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
55      */
56     public String JavaDoc getText(Object JavaDoc element) {
57         if (element instanceof NavigatorContentDescriptor) {
58             return ((INavigatorContentDescriptor) element).getName();
59         } else if (element instanceof ICommonFilterDescriptor) {
60             return ((ICommonFilterDescriptor) element).getName();
61         }
62         return null;
63     }
64
65     /*
66      * (non-Javadoc)
67      *
68      * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener)
69      */
70     public void addListener(ILabelProviderListener listener) {
71     }
72
73     /*
74      * (non-Javadoc)
75      *
76      * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose()
77      */
78     public void dispose() {
79
80     }
81
82     /*
83      * (non-Javadoc)
84      *
85      * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object,
86      * java.lang.String)
87      */
88     public boolean isLabelProperty(Object JavaDoc element, String JavaDoc property) {
89         return false;
90     }
91
92     /*
93      * (non-Javadoc)
94      *
95      * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener)
96      */
97     public void removeListener(ILabelProviderListener listener) {
98
99     }
100
101     /*
102      * (non-Javadoc)
103      *
104      * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int)
105      */
106     public Image getColumnImage(Object JavaDoc element, int columnIndex) {
107         switch (columnIndex) {
108             case 0 :
109                 return getImage(element);
110
111         }
112         return null;
113     }
114
115     /*
116      * (non-Javadoc)
117      *
118      * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, int)
119      */
120     public String JavaDoc getColumnText(Object JavaDoc element, int columnIndex) {
121         switch (columnIndex) {
122             case 0 :
123                 return getText(element);
124             case 1 : {
125                 if (element instanceof ICommonFilterDescriptor) {
126                     String JavaDoc d = ((ICommonFilterDescriptor) element).getDescription();
127                     return d == null ? "" : d; //$NON-NLS-1$
128 }
129             }
130         }
131         return ""; //$NON-NLS-1$
132 }
133
134 }
135
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