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comparison org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/snippets/Snippet020TreeViewerWithSetFactory.d @ 100:e884642ad36e

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more work on examples
author Frank Benoit <benoit@tionex.de>
date Thu, 23 Apr 2009 00:02:38 +0200
parents 5d5bd660917f
children
comparison
equal deleted inserted replaced
99:5d5bd660917f 100:e884642ad36e
155 public void widgetSelected(final SelectionEvent e) { 155 public void widgetSelected(final SelectionEvent e) {
156 TreeItem selectedItem = beanViewer.getTree().getSelection()[0]; 156 TreeItem selectedItem = beanViewer.getTree().getSelection()[0];
157 Bean bean = (Bean) selectedItem.getData(); 157 Bean bean = (Bean) selectedItem.getData();
158 TreeItem parentItem = selectedItem.getParentItem(); 158 TreeItem parentItem = selectedItem.getParentItem();
159 Bean parent; 159 Bean parent;
160 if (parentItem == null) 160 if (parentItem is null)
161 parent = input; 161 parent = input;
162 else 162 else
163 parent = (Bean) parentItem.getData(); 163 parent = (Bean) parentItem.getData();
164 164
165 Set set = new HashSet(parent.getSet()); 165 Set set = new HashSet(parent.getSet());
179 179
180 pasteButton = new Button(group, SWT.NONE); 180 pasteButton = new Button(group, SWT.NONE);
181 pasteButton.addSelectionListener(new SelectionAdapter() { 181 pasteButton.addSelectionListener(new SelectionAdapter() {
182 public void widgetSelected(final SelectionEvent e) { 182 public void widgetSelected(final SelectionEvent e) {
183 Bean copy = (Bean) clipboard.getValue(); 183 Bean copy = (Bean) clipboard.getValue();
184 if (copy == null) 184 if (copy is null)
185 return; 185 return;
186 Bean parent = getSelectedBean(); 186 Bean parent = getSelectedBean();
187 if (parent == null) 187 if (parent is null)
188 parent = input; 188 parent = input;
189 189
190 Set set = new HashSet(parent.getSet()); 190 Set set = new HashSet(parent.getSet());
191 set.add(copy); 191 set.add(copy);
192 parent.setSet(set); 192 parent.setSet(set);
257 private void initExtraBindings(DataBindingContext dbc) { 257 private void initExtraBindings(DataBindingContext dbc) {
258 final IObservableValue beanViewerSelection = ViewersObservables 258 final IObservableValue beanViewerSelection = ViewersObservables
259 .observeSingleSelection(beanViewer); 259 .observeSingleSelection(beanViewer);
260 IObservableValue beanSelected = new ComputedValue(bool.TYPE) { 260 IObservableValue beanSelected = new ComputedValue(bool.TYPE) {
261 protected Object calculate() { 261 protected Object calculate() {
262 return bool.valueOf(beanViewerSelection.getValue() != null); 262 return bool.valueOf(beanViewerSelection.getValue() !is null);
263 } 263 }
264 }; 264 };
265 dbc.bindValue(SWTObservables.observeEnabled(addChildBeanButton), 265 dbc.bindValue(SWTObservables.observeEnabled(addChildBeanButton),
266 beanSelected); 266 beanSelected);
267 dbc.bindValue(SWTObservables.observeEnabled(removeBeanButton), 267 dbc.bindValue(SWTObservables.observeEnabled(removeBeanButton),
270 clipboard = new WritableValue(); 270 clipboard = new WritableValue();
271 dbc.bindValue(SWTObservables.observeEnabled(copyButton), beanSelected); 271 dbc.bindValue(SWTObservables.observeEnabled(copyButton), beanSelected);
272 dbc.bindValue(SWTObservables.observeEnabled(pasteButton), 272 dbc.bindValue(SWTObservables.observeEnabled(pasteButton),
273 new ComputedValue(bool.TYPE) { 273 new ComputedValue(bool.TYPE) {
274 protected Object calculate() { 274 protected Object calculate() {
275 return bool.valueOf(clipboard.getValue() != null); 275 return bool.valueOf(clipboard.getValue() !is null);
276 } 276 }
277 }); 277 });
278 278
279 ViewerSupport.bind(beanViewer, input, BeanProperties.set("set", 279 ViewerSupport.bind(beanViewer, input, BeanProperties.set("set",
280 Bean.class), BeanProperties.value(Bean.class, "text")); 280 Bean.class), BeanProperties.value(Bean.class, "text"));
307 changeSupport.firePropertyChange("text", this.text, 307 changeSupport.firePropertyChange("text", this.text,
308 this.text = value); 308 this.text = value);
309 } 309 }
310 310
311 public Set getSet() { 311 public Set getSet() {
312 if (set == null) 312 if (set is null)
313 return null; 313 return null;
314 return new HashSet(set); 314 return new HashSet(set);
315 } 315 }
316 316
317 public void setSet(Set set) { 317 public void setSet(Set set) {
318 if (set != null) 318 if (set !is null)
319 set = new HashSet(set); 319 set = new HashSet(set);
320 changeSupport.firePropertyChange("set", this.set, this.set = set); 320 changeSupport.firePropertyChange("set", this.set, this.set = set);
321 } 321 }
322 322
323 public bool hasListeners(String propertyName) { 323 public bool hasListeners(String propertyName) {