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Package: BooleanCellEditor
BooleanCellEditor
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| BooleanCellEditor(Composite) |
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| activate() |
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| activate(ColumnViewerEditorActivationEvent) |
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| createControl(Composite) |
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| doGetValue() |
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| doSetFocus() |
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| doSetValue(Object) |
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| getColumnWidthWeight() |
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| getCopyMap(Widget) |
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| getFormatedString(Object) |
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| getImage(Object) |
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| getMinWidth() |
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| getModelToTargetStrategy(DataBindingContext) |
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| getTargetToModelStrategy(DataBindingContext) |
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| getValueProperty() |
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| instantiate(EStructuralFeature, ViewModelContext) |
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| setCopyTextMarker(ViewerCell, Object) |
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| setEditable(boolean) |
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| updateCell(ViewerCell, Object) |
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Coverage
1: /*******************************************************************************
2: * Copyright (c) 2011-2019 EclipseSource Muenchen GmbH and others.
3: *
4: * All rights reserved. This program and the accompanying materials
5: * are made available under the terms of the Eclipse Public License 2.0
6: * which accompanies this distribution, and is available at
7: * https://www.eclipse.org/legal/epl-2.0/
8: *
9: * SPDX-License-Identifier: EPL-2.0
10: *
11: * Contributors:
12: * jfaltermeier - initial API and implementation
13: * Christian W. Damus - bug 547271
14: ******************************************************************************/
15: package org.eclipse.emf.ecp.view.internal.table.celleditor.rcp;
16:
17: import java.util.HashMap;
18: import java.util.Map;
19:
20: import org.eclipse.core.databinding.DataBindingContext;
21: import org.eclipse.core.databinding.UpdateValueStrategy;
22: import org.eclipse.core.databinding.observable.Diffs;
23: import org.eclipse.core.databinding.observable.value.AbstractObservableValue;
24: import org.eclipse.core.databinding.observable.value.IObservableValue;
25: import org.eclipse.core.databinding.property.INativePropertyListener;
26: import org.eclipse.core.databinding.property.ISimplePropertyListener;
27: import org.eclipse.core.databinding.property.value.IValueProperty;
28: import org.eclipse.core.databinding.property.value.SimpleValueProperty;
29: import org.eclipse.core.runtime.Assert;
30: import org.eclipse.emf.databinding.EMFUpdateValueStrategy;
31: import org.eclipse.emf.ecore.EStructuralFeature;
32: import org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor;
33: import org.eclipse.emf.ecp.edit.spi.swt.table.ECPCustomUpdateCellEditor;
34: import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
35: import org.eclipse.emf.ecp.view.spi.table.celleditor.rcp.NativeWidgetHelper;
36: import org.eclipse.emf.ecp.view.spi.table.celleditor.rcp.NativeWidgetHelper.CheckBoxState;
37: import org.eclipse.jface.viewers.CellEditor;
38: import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
39: import org.eclipse.jface.viewers.ICellEditorListener;
40: import org.eclipse.jface.viewers.ViewerCell;
41: import org.eclipse.swt.graphics.Image;
42: import org.eclipse.swt.widgets.Composite;
43: import org.eclipse.swt.widgets.Control;
44: import org.eclipse.swt.widgets.Widget;
45:
46: /**
47: * Cell editor for boolean values.
48: *
49: * @author jfaltermeier
50: *
51: */
52: public class BooleanCellEditor extends CellEditor implements ECPCellEditor, ECPCustomUpdateCellEditor {
53:
54: private boolean editable;
55: private final Composite parent;
56: private boolean value;
57:
58: /**
59: * A constructor which takes only a parent.
60: *
61: * @param parent the {@link Composite} to use as a parent.
62: */
63: public BooleanCellEditor(Composite parent) {
64: super(parent);
65: this.parent = parent;
66: }
67:
68: /**
69: * {@inheritDoc}
70: *
71: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getValueProperty()
72: */
73: @Override
74: public IValueProperty getValueProperty() {
75: return new SimpleValueProperty() {
76:
77: @Override
78: public Object getValueType() {
79: return Boolean.class;
80: }
81:
82: @Override
83: protected Object doGetValue(Object source) {
84: return BooleanCellEditor.this.doGetValue();
85: }
86:
87: @Override
88: protected void doSetValue(Object source, Object value) {
89: BooleanCellEditor.this.doSetValue(value);
90: }
91:
92: @Override
93: public IObservableValue observe(Object source) {
94: return new BooleanCellEditorObservableValue();
95: }
96:
97: @Override
98: public INativePropertyListener adaptListener(ISimplePropertyListener listener) {
99: return null;
100: }
101: };
102: }
103:
104: /**
105: * {@inheritDoc}
106: *
107: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#instantiate(org.eclipse.emf.ecore.EStructuralFeature,
108: * org.eclipse.emf.ecp.view.spi.context.ViewModelContext)
109: */
110: @Override
111: public void instantiate(EStructuralFeature feature, ViewModelContext viewModelContext) {
112: // no op
113: }
114:
115: /**
116: * {@inheritDoc}
117: *
118: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getFormatedString(java.lang.Object)
119: */
120: @Override
121: public String getFormatedString(Object value) {
122: return null;
123: }
124:
125: /**
126: * {@inheritDoc}
127: *
128: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getColumnWidthWeight()
129: */
130: @Override
131: public int getColumnWidthWeight() {
132: return 25;
133: }
134:
135: /**
136: * {@inheritDoc}
137: *
138: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getTargetToModelStrategy(org.eclipse.core.databinding.DataBindingContext)
139: */
140: @Override
141: public UpdateValueStrategy getTargetToModelStrategy(DataBindingContext databindingContext) {
142: return new EMFUpdateValueStrategy();
143: }
144:
145: /**
146: * {@inheritDoc}
147: *
148: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getModelToTargetStrategy(org.eclipse.core.databinding.DataBindingContext)
149: */
150: @Override
151: public UpdateValueStrategy getModelToTargetStrategy(DataBindingContext databindingContext) {
152: return new EMFUpdateValueStrategy();
153: }
154:
155: /**
156: * {@inheritDoc}
157: *
158: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#setEditable(boolean)
159: */
160: @Override
161: public void setEditable(boolean editable) {
162: this.editable = editable;
163: }
164:
165: /**
166: * {@inheritDoc}
167: *
168: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getImage(java.lang.Object)
169: */
170: @Override
171: public Image getImage(Object value) {
172:• final CheckBoxState state = (Boolean) value ? CheckBoxState.checked : CheckBoxState.unchecked;
173: return NativeWidgetHelper.getCheckBoxImage(parent, state);
174: }
175:
176: /**
177: * {@inheritDoc}
178: *
179: * @see org.eclipse.jface.viewers.CheckboxCellEditor#activate()
180: */
181: @Override
182: public void activate() {
183:• if (editable) {
184:• value = !value;
185: fireApplyEditorValue();
186: }
187: }
188:
189: /**
190: * {@inheritDoc}
191: *
192: * @see org.eclipse.jface.viewers.CellEditor#createControl(org.eclipse.swt.widgets.Composite)
193: */
194: @Override
195: protected Control createControl(Composite parent) {
196: // intended null since there is no actual cell editor. Activate is used as trigger.
197: return null;
198: }
199:
200: /**
201: * {@inheritDoc}
202: *
203: * @see org.eclipse.jface.viewers.CellEditor#doGetValue()
204: */
205: @Override
206: protected Object doGetValue() {
207:• return value ? Boolean.TRUE : Boolean.FALSE;
208: }
209:
210: /**
211: * {@inheritDoc}
212: *
213: * @see org.eclipse.jface.viewers.CellEditor#doSetFocus()
214: */
215: @Override
216: protected void doSetFocus() {
217: // ignored
218: }
219:
220: /**
221: * {@inheritDoc}
222: *
223: * @see org.eclipse.jface.viewers.CellEditor#doSetValue(java.lang.Object)
224: */
225: @Override
226: protected void doSetValue(Object value) {
227: Assert.isTrue(value instanceof Boolean);
228: this.value = ((Boolean) value).booleanValue();
229: }
230:
231: @Override
232: public void activate(ColumnViewerEditorActivationEvent activationEvent) {
233:• if (activationEvent.eventType != ColumnViewerEditorActivationEvent.TRAVERSAL) {
234: super.activate(activationEvent);
235: }
236: }
237:
238: /**
239: * {@inheritDoc}
240: *
241: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCustomUpdateCellEditor#updateCell(org.eclipse.jface.viewers.ViewerCell,
242: * java.lang.Object)
243: */
244: @Override
245: public void updateCell(ViewerCell cell, Object value) {
246:• if (!"".equals(cell.getText())) { //$NON-NLS-1$
247: cell.setText(""); //$NON-NLS-1$
248: }
249: final Image image = getImage(value);
250:• if (cell.getImage() != image) {
251: cell.setImage(image);
252: }
253: setCopyTextMarker(cell, value);
254: }
255:
256: /**
257: * Sets the copy text marker for the given {@code cell} and {@code value}.
258: *
259: * @param cell the {@link ViewerCell}.
260: * @param value the {@link Object} value.
261: */
262: protected void setCopyTextMarker(ViewerCell cell, Object value) {
263:• if (value != null) {
264: final Widget item = cell.getItem();
265: final Map<Integer, String> copyMap = getCopyMap(item);
266: copyMap.put(cell.getColumnIndex(), value.toString());
267: }
268: }
269:
270: /**
271: * Get the copy map of the given {@code widget}. If it does not exist it will be created.
272: *
273: * @param widget the {@link Widget} to check.
274: * @return the copy map.
275: */
276: protected Map<Integer, String> getCopyMap(Widget widget) {
277: @SuppressWarnings("unchecked")
278: Map<Integer, String> copyMap = (Map<Integer, String>) widget.getData(ECPCellEditor.COPY_STRING_ALTERNATIVE);
279:• if (copyMap == null) {
280: copyMap = new HashMap<Integer, String>();
281: widget.setData(ECPCellEditor.COPY_STRING_ALTERNATIVE, copyMap);
282: }
283: return copyMap;
284: }
285:
286: /**
287: * {@link IObservableValue} for the boolean cell editor.
288: *
289: * @author jfaltermeier
290: *
291: */
292: private class BooleanCellEditorObservableValue extends AbstractObservableValue {
293:
294: private final ICellEditorListener listener;
295:
296: BooleanCellEditorObservableValue() {
297: listener = new ICellEditorListener() {
298:
299: @Override
300: public void editorValueChanged(boolean oldValidState, boolean newValidState) {
301: // no op
302: }
303:
304: @Override
305: public void cancelEditor() {
306: // no op
307: }
308:
309: @Override
310: public void applyEditorValue() {
311: fireValueChange(Diffs.createValueDiff(!Boolean.class.cast(BooleanCellEditor.this.getValue()),
312: BooleanCellEditor.this.getValue()));
313: }
314: };
315: BooleanCellEditor.this.addListener(listener);
316: }
317:
318: /**
319: * {@inheritDoc}
320: *
321: * @see org.eclipse.core.databinding.observable.value.IObservableValue#getValueType()
322: */
323: @Override
324: public Object getValueType() {
325: return Boolean.class;
326: }
327:
328: /**
329: * {@inheritDoc}
330: *
331: * @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doGetValue()
332: */
333: @Override
334: protected Object doGetValue() {
335: return BooleanCellEditor.this.getValue();
336: }
337:
338: /**
339: * {@inheritDoc}
340: *
341: * @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doSetValue(java.lang.Object)
342: */
343: @Override
344: protected void doSetValue(Object value) {
345: BooleanCellEditor.this.setValue(value);
346: }
347:
348: /**
349: * {@inheritDoc}
350: *
351: * @see org.eclipse.core.databinding.observable.AbstractObservable#dispose()
352: */
353: @Override
354: public synchronized void dispose() {
355: BooleanCellEditor.this.removeListener(listener);
356: super.dispose();
357: }
358:
359: }
360:
361: /**
362: * {@inheritDoc}
363: *
364: * @see org.eclipse.emf.ecp.edit.spi.swt.table.ECPCellEditor#getMinWidth()
365: */
366: @Override
367: public int getMinWidth() {
368: return 0;
369: }
370: }