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comparison org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/swt/TextEditableObservableValue.d @ 78:0a55d2d5a946

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Added file for databinding
author Frank Benoit <benoit@tionex.de>
date Tue, 14 Apr 2009 11:35:29 +0200
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76:f05e6e8b2f2d 78:0a55d2d5a946
1 /*******************************************************************************
2 * Copyright (c) 2007, 2008 IBM Corporation 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 * IBM Corporation - initial API and implementation
10 *******************************************************************************/
11
12 module org.eclipse.jface.internal.databinding.swt.TextEditableObservableValue;
13
14 import java.lang.all;
15
16 import org.eclipse.core.databinding.observable.Diffs;
17 import org.eclipse.core.databinding.observable.Realm;
18 import org.eclipse.jface.internal.databinding.provisional.swt.AbstractSWTObservableValue;
19 import org.eclipse.swt.widgets.Text;
20
21 /**
22 * Observable value for the editable property of a Text.
23 *
24 * @since 1.1
25 */
26 public class TextEditableObservableValue : AbstractSWTObservableValue {
27 private Text text;
28
29 /**
30 * @param text
31 */
32 public this(Text text) {
33 super(text);
34 this.text = text;
35 }
36
37 /**
38 * @param realm
39 * @param text
40 */
41 public this(Realm realm, Text text) {
42 super(realm, text);
43 this.text = text;
44 }
45
46 /* (non-Javadoc)
47 * @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doGetValue()
48 */
49 protected Object doGetValue() {
50 return (text.getEditable()) ? Boolean.TRUE : Boolean.FALSE;
51 }
52
53 /* (non-Javadoc)
54 * @see org.eclipse.core.databinding.observable.value.IObservableValue#getValueType()
55 */
56 public Object getValueType() {
57 return Boolean.TYPE;
58 }
59
60 /* (non-Javadoc)
61 * @see org.eclipse.core.databinding.observable.value.AbstractObservableValue#doSetValue(java.lang.Object)
62 */
63 protected void doSetValue(Object value) {
64 if (value is null) {
65 throw new IllegalArgumentException("Parameter value was null."); //$NON-NLS-1$
66 }
67
68 Boolean oldValue = new Boolean(text.getEditable());
69 Boolean newValue = cast(Boolean) value;
70
71 text.setEditable(newValue.booleanValue());
72
73 if (!oldValue.equals(newValue)) {
74 fireValueChange(Diffs.createValueDiff(oldValue, newValue));
75 }
76 }
77 }