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comparison jface/snippets/viewers/Snippet005TreeCustomMenu.d @ 145:161f7698cfb8

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Moved jface snippets to viewers subpackage, there are more with conflicting numbers for other packages
author Frank Benoit <benoit@tionex.de>
date Fri, 08 Aug 2008 14:40:21 +0200
parents jface/snippets/Snippet005TreeCustomMenu.d@cbba80cceb7a
children
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144:7248e4c09c4f 145:161f7698cfb8
1 /*******************************************************************************
2 * Copyright (c) 2006 Tom Schindl 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 * Tom Schindl - initial API and implementation
10 * Port to the D programming language:
11 * wbaxter at gmail dot com
12 *******************************************************************************/
13
14 module snippets.viewers.Snippet005TreeCustomMenu;
15
16 import dwtx.jface.action.Action;
17 import dwtx.jface.action.IMenuListener;
18 import dwtx.jface.action.IMenuManager;
19 import dwtx.jface.action.MenuManager;
20 import dwtx.jface.viewers.IStructuredSelection;
21 import dwtx.jface.viewers.ITreeContentProvider;
22 import dwtx.jface.viewers.LabelProvider;
23 import dwtx.jface.viewers.TreeViewer;
24 import dwtx.jface.viewers.Viewer;
25 import dwt.layout.FillLayout;
26 import dwt.widgets.Display;
27 import dwt.widgets.Shell;
28 import dwt.DWT;
29
30 import dwt.dwthelper.utils;
31
32 import tango.util.Convert;
33 import tango.io.Stdout;
34
35 /**
36 * Customized context menu based on TreeItem-Selection
37 *
38 * @author Tom Schindl <tom.schindl@bestsolution.at>
39 *
40 */
41 public class Snippet005TreeCustomMenu {
42 private class MyContentProvider : ITreeContentProvider {
43
44 public Object[] getElements(Object inputElement) {
45 return (cast(MyModel) inputElement).child;
46 }
47
48 /* (non-Javadoc)
49 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
50 */
51 public void dispose() {
52
53 }
54
55 /* (non-Javadoc)
56 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
57 */
58 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
59
60 }
61
62 /* (non-Javadoc)
63 * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
64 */
65 public Object[] getChildren(Object parentElement) {
66 return getElements(parentElement);
67 }
68
69 /* (non-Javadoc)
70 * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
71 */
72 public Object getParent(Object element) {
73 if (element is null) {
74 return null;
75 }
76
77 return (cast(MyModel) element).parent;
78 }
79
80 /* (non-Javadoc)
81 * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
82 */
83 public bool hasChildren(Object element) {
84 return (cast(MyModel) element).child.length > 0;
85 }
86
87 }
88
89 public class MyModel {
90 public MyModel parent;
91
92 public MyModel[] child;
93
94 public int counter;
95
96 public this(int counter, MyModel parent) {
97 this.parent = parent;
98 this.counter = counter;
99 }
100
101 public String toString() {
102 String rv = "Item ";
103 if (parent !is null) {
104 rv = parent.toString() ~ ".";
105 }
106
107 rv ~= to!(char[])(counter);
108
109 return rv;
110 }
111 }
112
113 public this(Shell shell) {
114 final TreeViewer v = new TreeViewer(shell);
115 v.setLabelProvider(new LabelProvider());
116 v.setContentProvider(new MyContentProvider());
117 v.setInput(createModel());
118
119 final Action a = new class Action {};
120 final MenuManager mgr = new MenuManager();
121 mgr.setRemoveAllWhenShown(true);
122
123 class MyMenuListener : IMenuListener {
124 TreeViewer v;
125 Action a;
126 MenuManager mgr;
127
128 this(TreeViewer v_, Action a_, MenuManager mgr_) {
129 this.v = v_; this.a = a_; this.mgr = mgr_;
130 }
131
132 /* (non-Javadoc)
133 * @see org.eclipse.jface.action.IMenuListener#menuAboutToShow(org.eclipse.jface.action.IMenuManager)
134 */
135 public void menuAboutToShow(IMenuManager manager) {
136 IStructuredSelection selection = cast(IStructuredSelection) v
137 .getSelection();
138 if (!selection.isEmpty()) {
139 a.setText("Action for "
140 ~ (cast(MyModel) selection.getFirstElement())
141 .toString());
142 mgr.add(a);
143 }
144 }
145 }
146
147 mgr.addMenuListener(new MyMenuListener(v,a,mgr));
148 v.getControl().setMenu(mgr.createContextMenu(v.getControl()));
149 }
150
151 private MyModel createModel() {
152
153 MyModel root = new MyModel(0, null);
154 root.counter = 0;
155
156 MyModel tmp;
157 for (int i = 1; i < 10; i++) {
158 tmp = new MyModel(i, root);
159 root.child ~= tmp;
160 for (int j = 1; j < i; j++) {
161 tmp.child ~= new MyModel(j, tmp);
162 }
163 }
164
165 return root;
166 }
167
168 }
169
170 void main() {
171 Display display = new Display();
172 Shell shell = new Shell(display);
173 shell.setLayout(new FillLayout());
174 new Snippet005TreeCustomMenu(shell);
175 shell.open();
176
177 while (!shell.isDisposed()) {
178 if (!display.readAndDispatch())
179 display.sleep();
180 }
181
182 display.dispose();
183 }