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comparison org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/snippets/Snippet029TreeViewerMultiListProperty.d @ 90:6086085e153d

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Added databinding snippets. unmodified java sources.
author Frank Benoit <benoit@tionex.de>
date Sun, 19 Apr 2009 11:33:55 +0200
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children 5d5bd660917f
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89:0ca1aee7decf 90:6086085e153d
1 /*******************************************************************************
2 * Copyright (c) 2009 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 175735)
10 * Matthew Hall - bugs 262407, 260337
11 ******************************************************************************/
12
13 package org.eclipse.jface.examples.databinding.snippets;
14
15 import java.beans.PropertyChangeListener;
16 import java.beans.PropertyChangeSupport;
17 import java.util.ArrayList;
18 import java.util.List;
19
20 import org.eclipse.core.databinding.beans.BeanProperties;
21 import org.eclipse.core.databinding.observable.Realm;
22 import org.eclipse.core.databinding.property.list.IListProperty;
23 import org.eclipse.core.databinding.property.list.MultiListProperty;
24 import org.eclipse.jface.databinding.swt.SWTObservables;
25 import org.eclipse.jface.databinding.viewers.ObservableListTreeContentProvider;
26 import org.eclipse.jface.databinding.viewers.ObservableMapLabelProvider;
27 import org.eclipse.jface.viewers.TreeViewer;
28 import org.eclipse.swt.SWT;
29 import org.eclipse.swt.graphics.GC;
30 import org.eclipse.swt.graphics.Image;
31 import org.eclipse.swt.layout.FillLayout;
32 import org.eclipse.swt.layout.GridLayout;
33 import org.eclipse.swt.widgets.Display;
34 import org.eclipse.swt.widgets.Shell;
35
36 /**
37 * @since 3.2
38 *
39 */
40 public class Snippet029TreeViewerMultiListProperty {
41 protected Shell shell;
42 private TreeViewer viewer;
43
44 /**
45 * Launch the application
46 *
47 * @param args
48 */
49 public static void main(String[] args) {
50 try {
51 Snippet029TreeViewerMultiListProperty window = new Snippet029TreeViewerMultiListProperty();
52 window.open();
53 } catch (Exception e) {
54 e.printStackTrace();
55 }
56 }
57
58 /**
59 * Open the window
60 */
61 public void open() {
62 final Display display = Display.getDefault();
63 Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
64 public void run() {
65 createContents();
66 shell.open();
67 shell.layout();
68 while (!shell.isDisposed()) {
69 if (!display.readAndDispatch())
70 display.sleep();
71 }
72 }
73 });
74 }
75
76 protected void createContents() {
77 shell = new Shell();
78 shell.setSize(509, 375);
79 shell.setText("Snippet028DuplexingObservableValue.java");
80 final GridLayout gridLayout = new GridLayout();
81 gridLayout.makeColumnsEqualWidth = true;
82 gridLayout.numColumns = 4;
83 shell.setLayout(new FillLayout());
84
85 viewer = new TreeViewer(shell, SWT.FULL_SELECTION | SWT.MULTI
86 | SWT.BORDER);
87
88 bindUI();
89 }
90
91 // Minimal JavaBeans support
92 public static abstract class AbstractModelObject {
93 private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
94 this);
95
96 public void addPropertyChangeListener(PropertyChangeListener listener) {
97 propertyChangeSupport.addPropertyChangeListener(listener);
98 }
99
100 public void addPropertyChangeListener(String propertyName,
101 PropertyChangeListener listener) {
102 propertyChangeSupport.addPropertyChangeListener(propertyName,
103 listener);
104 }
105
106 public void removePropertyChangeListener(PropertyChangeListener listener) {
107 propertyChangeSupport.removePropertyChangeListener(listener);
108 }
109
110 public void removePropertyChangeListener(String propertyName,
111 PropertyChangeListener listener) {
112 propertyChangeSupport.removePropertyChangeListener(propertyName,
113 listener);
114 }
115
116 protected void firePropertyChange(String propertyName, Object oldValue,
117 Object newValue) {
118 propertyChangeSupport.firePropertyChange(propertyName, oldValue,
119 newValue);
120 }
121 }
122
123 public static class Catalog extends AbstractModelObject {
124 private String name;
125 private List catalogs = new ArrayList();
126 private List items = new ArrayList();
127
128 public Catalog(String name) {
129 this.name = name;
130 }
131
132 public String getName() {
133 return name;
134 }
135
136 public void setName(String name) {
137 firePropertyChange("name", this.name, this.name = name);
138 }
139
140 public List getCatalogs() {
141 return catalogs;
142 }
143
144 public void setCatalogs(List catalogs) {
145 firePropertyChange("catalogs", this.catalogs,
146 this.catalogs = catalogs);
147 }
148
149 public List getItems() {
150 return items;
151 }
152
153 public void setItems(List items) {
154 firePropertyChange("items", this.items, this.items = items);
155 }
156 }
157
158 public static class CatalogItem extends AbstractModelObject {
159 private String name;
160
161 public CatalogItem(String name) {
162 this.name = name;
163 }
164
165 public String getName() {
166 return name;
167 }
168
169 public void setName(String name) {
170 firePropertyChange("name", this.name, this.name = name);
171 }
172 }
173
174 private void bindUI() {
175 List items;
176
177 Catalog fruits = new Catalog("Fruits");
178 items = new ArrayList();
179 items.add(new CatalogItem("Apple"));
180 items.add(new CatalogItem("Orange"));
181 fruits.setCatalogs(items);
182
183 Catalog vegetables = new Catalog("Vegetables");
184 items = new ArrayList();
185 items.add(new CatalogItem("Peas"));
186 items.add(new CatalogItem("Carrots"));
187 items.add(new CatalogItem("Potatoes"));
188 vegetables.setItems(items);
189
190 Catalog foods = new Catalog("Foods");
191 items = new ArrayList();
192 items.add(fruits);
193 items.add(vegetables);
194 foods.setCatalogs(items);
195
196 items = new ArrayList();
197 items.add(new CatalogItem("Own Hand"));
198 foods.setItems(items);
199
200 Catalog catalog = new Catalog("Main Catalog");
201 items = new ArrayList();
202 items.add(foods);
203 catalog.setCatalogs(items);
204
205 IListProperty childrenProperty = new MultiListProperty(
206 new IListProperty[] { BeanProperties.list("catalogs"),
207 BeanProperties.list("items") });
208
209 ObservableListTreeContentProvider contentProvider = new ObservableListTreeContentProvider(
210 childrenProperty.listFactory(), null);
211 viewer.setContentProvider(contentProvider);
212
213 ObservableMapLabelProvider labelProvider = new ObservableMapLabelProvider(
214 BeanProperties.value("name").observeDetail(
215 contentProvider.getKnownElements())) {
216 Image catalogImage = createCatalogImage();
217 Image catalogItemImage = createCatalogItemImage();
218
219 public Image getImage(Object element) {
220 if (element instanceof Catalog)
221 return catalogImage;
222 if (element instanceof CatalogItem)
223 return catalogItemImage;
224 return super.getImage(element);
225 }
226
227 public void dispose() {
228 catalogImage.dispose();
229 catalogItemImage.dispose();
230 super.dispose();
231 }
232
233 private Image createCatalogImage() {
234 Display display = Display.getCurrent();
235 Image catalogImage = new Image(display, 12, 12);
236 GC gc = new GC(catalogImage);
237 gc.setBackground(display.getSystemColor(SWT.COLOR_GREEN));
238 gc.fillArc(1, 1, 10, 10, 0, 360);
239 gc.dispose();
240 return catalogImage;
241 }
242
243 private Image createCatalogItemImage() {
244 Display display = Display.getCurrent();
245 Image catalogImage = new Image(display, 12, 12);
246 GC gc = new GC(catalogImage);
247 gc.setBackground(display.getSystemColor(SWT.COLOR_CYAN));
248 gc.fillPolygon(new int[] { 1, 10, 5, 1, 6, 1, 10, 10, 1, 10 });
249 gc.dispose();
250 return catalogImage;
251 }
252 };
253 viewer.setLabelProvider(labelProvider);
254
255 viewer.setInput(catalog);
256 }
257 }