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comparison jface/snippets/Snippet014TreeViewerNoMandatoryLabelProvider.d @ 137:96a2d0b35360

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jface snippets 014, 026, 043, 047
author yidabu <yidabu@gmail.com>
date Wed, 06 Aug 2008 10:03:06 +0800
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children 2b4e94cafb85
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136:7931ee9b41e6 137:96a2d0b35360
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 * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ )
12 *******************************************************************************/
13
14 module jface.snippets.Snippet014TreeViewerNoMandatoryLabelProvider;
15
16
17 import dwtx.jface.resource.FontRegistry;
18 import dwtx.jface.viewers.ITableColorProvider;
19 import dwtx.jface.viewers.ITableFontProvider;
20 import dwtx.jface.viewers.ITableLabelProvider;
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.DWT;
26 import dwt.graphics.Color;
27 import dwt.graphics.Font;
28 import dwt.graphics.Image;
29 import dwt.layout.FillLayout;
30 import dwt.widgets.Display;
31 import dwt.widgets.Shell;
32 import dwt.widgets.TreeColumn;
33
34 import dwt.dwthelper.utils;
35
36 import tango.util.Convert;
37 import tango.util.container.LinkedList;
38
39
40
41 void main(String[] args) {
42 Display display = new Display();
43 Shell shell = new Shell(display);
44 shell.setLayout(new FillLayout());
45 new Snippet014TreeViewerNoMandatoryLabelProvider(shell);
46 shell.open();
47
48 while (!shell.isDisposed()) {
49 if (!display.readAndDispatch())
50 display.sleep();
51 }
52
53 display.dispose();
54 }
55
56 /**
57 * A simple TreeViewer to demonstrate usage
58 *
59 * @author Tom Schindl <tom.schindl@bestsolution.at>
60 *
61 */
62 public class Snippet014TreeViewerNoMandatoryLabelProvider {
63 alias LinkedList!(MyModel) ArrayList;
64
65 private class MyContentProvider : ITreeContentProvider {
66
67 /*
68 * (non-Javadoc)
69 *
70 * @see dwtx.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
71 */
72 public Object[] getElements(Object inputElement) {
73 return (cast(MyModel) inputElement).child.toArray();
74 }
75
76 /*
77 * (non-Javadoc)
78 *
79 * @see dwtx.jface.viewers.IContentProvider#dispose()
80 */
81 public void dispose() {
82
83 }
84
85 /*
86 * (non-Javadoc)
87 *
88 * @see dwtx.jface.viewers.IContentProvider#inputChanged(dwtx.jface.viewers.Viewer,
89 * java.lang.Object, java.lang.Object)
90 */
91 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
92
93 }
94
95 /*
96 * (non-Javadoc)
97 *
98 * @see dwtx.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
99 */
100 public Object[] getChildren(Object parentElement) {
101 return getElements(parentElement);
102 }
103
104 /*
105 * (non-Javadoc)
106 *
107 * @see dwtx.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
108 */
109 public Object getParent(Object element) {
110 if (element is null) {
111 return null;
112 }
113
114 return (cast(MyModel) element).parent;
115 }
116
117 /*
118 * (non-Javadoc)
119 *
120 * @see dwtx.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
121 */
122 public bool hasChildren(Object element) {
123 return (cast(MyModel) element).child.size() > 0;
124 }
125
126 }
127
128 public class MyModel {
129 public MyModel parent;
130
131 public ArrayList child;
132
133 public int counter;
134
135 public this(int counter, MyModel parent) {
136 this.parent = parent;
137 this.counter = counter;
138 child = new ArrayList();
139 }
140
141 public String toString() {
142 String rv = "Item ";
143 if (parent !is null) {
144 rv = parent.toString() ~ ".";
145 }
146
147 rv ~= to!(String)(counter);
148
149 return rv;
150 }
151 }
152
153 public class MyLabelProvider : LabelProvider,
154 ITableLabelProvider, ITableFontProvider, ITableColorProvider {
155 FontRegistry registry;
156 this()
157 {
158 registry = new FontRegistry();
159 }
160
161 public Image getColumnImage(Object element, int columnIndex) {
162 return null;
163 }
164
165 public String getColumnText(Object element, int columnIndex) {
166 return "Column " ~ to!(String)(columnIndex) ~ " => " ~ element.toString();
167 }
168
169 public Font getFont(Object element, int columnIndex) {
170 if ((cast(MyModel) element).counter % 2 == 0) {
171 return registry.getBold(Display.getCurrent().getSystemFont()
172 .getFontData()[0].getName());
173 }
174 return null;
175 }
176
177 public Color getBackground(Object element, int columnIndex) {
178 if ((cast(MyModel) element).counter % 2 == 0) {
179 return Display.getCurrent().getSystemColor(DWT.COLOR_RED);
180 }
181 return null;
182 }
183
184 public Color getForeground(Object element, int columnIndex) {
185 if ((cast(MyModel) element).counter % 2 == 1) {
186 return Display.getCurrent().getSystemColor(DWT.COLOR_RED);
187 }
188 return null;
189 }
190
191 }
192
193 public this(Shell shell) {
194 final TreeViewer v = new TreeViewer(shell);
195
196 TreeColumn column = new TreeColumn(v.getTree(),DWT.NONE);
197 column.setWidth(200);
198 column.setText("Column 1");
199
200 column = new TreeColumn(v.getTree(),DWT.NONE);
201 column.setWidth(200);
202 column.setText("Column 2");
203
204 v.setLabelProvider(new MyLabelProvider());
205 v.setContentProvider(new MyContentProvider());
206 v.setInput(createModel());
207 }
208
209 private MyModel createModel() {
210
211 MyModel root = new MyModel(0, null);
212 root.counter = 0;
213
214 MyModel tmp;
215 for (int i = 1; i < 10; i++) {
216 tmp = new MyModel(i, root);
217 root.child.add(tmp);
218 for (int j = 1; j < i; j++) {
219 tmp.child.add(new MyModel(j, tmp));
220 }
221 }
222
223 return root;
224 }
225
226
227 }