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comparison org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/viewers/CheckboxViewerCheckedElementsObservableSet.d @ 78:0a55d2d5a946

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Added file for databinding
author Frank Benoit <benoit@tionex.de>
date Tue, 14 Apr 2009 11:35:29 +0200
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76:f05e6e8b2f2d 78:0a55d2d5a946
1 /*******************************************************************************
2 * Copyright (c) 2008 Matthew Hall 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 * Matthew Hall - initial API and implementation (bug 124684)
10 ******************************************************************************/
11
12 module org.eclipse.jface.internal.databinding.viewers.CheckboxViewerCheckedElementsObservableSet;
13
14 import java.lang.all;
15
16 import java.util.Arrays;
17 import java.util.Set;
18
19 import org.eclipse.core.databinding.observable.Realm;
20 import org.eclipse.jface.databinding.viewers.IViewerObservableSet;
21 import org.eclipse.jface.viewers.CheckboxTableViewer;
22 import org.eclipse.jface.viewers.CheckboxTreeViewer;
23 import org.eclipse.jface.viewers.StructuredViewer;
24 import org.eclipse.jface.viewers.Viewer;
25
26 /**
27 * An observable set that tracks the checked elements in a CheckboxTableViewer
28 * or CheckboxTreeViewer
29 *
30 * @since 1.2
31 */
32 public class CheckboxViewerCheckedElementsObservableSet :
33 CheckableCheckedElementsObservableSet , IViewerObservableSet {
34 private StructuredViewer viewer;
35
36 /**
37 * Constructs a new instance on the given realm and checkable.
38 *
39 * @param realm
40 * the observable's realm
41 * @param viewer
42 * the CheckboxTableViewer viewer to track.
43 * @param elementType
44 * type of elements in the set
45 */
46 public this(Realm realm,
47 CheckboxTableViewer viewer, Object elementType) {
48 super(realm, viewer, elementType, createElementSet(viewer));
49 this.viewer = viewer;
50 }
51
52 /**
53 * Constructs a new instance on the given realm and checkable.
54 *
55 * @param realm
56 * the observable's realm
57 * @param viewer
58 * the CheckboxTreeViewer viewer to track.
59 * @param elementType
60 * type of elements in the set
61 */
62 public this(Realm realm,
63 CheckboxTreeViewer viewer, Object elementType) {
64 super(realm, viewer, elementType, createElementSet(viewer));
65 this.viewer = viewer;
66 }
67
68 Set createDiffSet() {
69 return ViewerElementSet.withComparer(viewer.getComparer());
70 }
71
72 private static Set createElementSet(CheckboxTableViewer viewer) {
73 Set set = ViewerElementSet.withComparer(viewer.getComparer());
74 set.addAll(Arrays.asList(viewer.getCheckedElements()));
75 return set;
76 }
77
78 private static Set createElementSet(CheckboxTreeViewer viewer) {
79 Set set = ViewerElementSet.withComparer(viewer.getComparer());
80 set.addAll(Arrays.asList(viewer.getCheckedElements()));
81 return set;
82 }
83
84 public Viewer getViewer() {
85 return viewer;
86 }
87
88 public synchronized void dispose() {
89 viewer = null;
90 super.dispose();
91 }
92 }