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comparison org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/snippets/Snippet023ConditionalVisibility.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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89:0ca1aee7decf 90:6086085e153d
1 /*******************************************************************************
2 * Copyright (c) 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 package org.eclipse.jface.examples.databinding.snippets;
13
14 import org.eclipse.core.databinding.observable.Realm;
15 import org.eclipse.jface.databinding.swt.ISWTObservableValue;
16 import org.eclipse.jface.databinding.swt.SWTObservables;
17 import org.eclipse.jface.internal.databinding.provisional.swt.ControlUpdater;
18 import org.eclipse.jface.layout.GridLayoutFactory;
19 import org.eclipse.swt.SWT;
20 import org.eclipse.swt.custom.StackLayout;
21 import org.eclipse.swt.layout.GridLayout;
22 import org.eclipse.swt.widgets.Button;
23 import org.eclipse.swt.widgets.Composite;
24 import org.eclipse.swt.widgets.Display;
25 import org.eclipse.swt.widgets.Group;
26 import org.eclipse.swt.widgets.Label;
27 import org.eclipse.swt.widgets.Shell;
28 import org.eclipse.swt.widgets.Text;
29
30 /**
31 * @since 3.2
32 *
33 */
34 public class Snippet023ConditionalVisibility {
35 public static void main(String[] args) {
36 Display display = new Display();
37 final Shell shell = new Shell(display);
38 shell.setLayout(new GridLayout(1, false));
39
40 Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
41 public void run() {
42 new Snippet023ConditionalVisibility().createControls(shell);
43 }
44 });
45
46 shell.pack();
47 shell.open();
48 while (!shell.isDisposed()) {
49 if (!display.readAndDispatch())
50 display.sleep();
51 }
52 display.dispose();
53 }
54
55 Text text;
56 Text toText;
57 Text fromText;
58
59 /**
60 * @param shell
61 */
62 private void createControls(Shell shell) {
63 Composite composite = new Composite(shell, SWT.NONE);
64 Group radioGroup = new Group(composite, SWT.NONE);
65 radioGroup.setText("Type");
66 Button textButton = new Button(radioGroup, SWT.RADIO);
67 textButton.setText("Text");
68 Button rangeButton = new Button(radioGroup, SWT.RADIO);
69 rangeButton.setText("Range");
70 GridLayoutFactory.swtDefaults().generateLayout(radioGroup);
71
72 final Composite oneOfTwo = new Composite(composite, SWT.NONE);
73 final StackLayout stackLayout = new StackLayout();
74 oneOfTwo.setLayout(stackLayout);
75
76 final Group rangeGroup = new Group(oneOfTwo, SWT.NONE);
77 rangeGroup.setText("Range");
78 Label fromLabel = new Label(rangeGroup, SWT.NONE);
79 fromLabel.setText("From:");
80 fromText = new Text(rangeGroup, SWT.SINGLE | SWT.LEAD | SWT.BORDER);
81
82 Label toLabel = new Label(rangeGroup, SWT.NONE);
83 toLabel.setText("To:");
84 toText = new Text(rangeGroup, SWT.SINGLE | SWT.LEAD | SWT.BORDER);
85 GridLayoutFactory.swtDefaults().numColumns(2)
86 .generateLayout(rangeGroup);
87
88 final Group textGroup = new Group(oneOfTwo, SWT.NONE);
89 textGroup.setText("Text");
90 Label label = new Label(textGroup, SWT.NONE);
91 label.setText("Text:");
92 text = new Text(textGroup, SWT.SINGLE | SWT.LEAD | SWT.BORDER);
93 GridLayoutFactory.swtDefaults().numColumns(2).generateLayout(textGroup);
94
95 GridLayoutFactory.swtDefaults().numColumns(2).generateLayout(composite);
96
97 final ISWTObservableValue rangeSelected = SWTObservables
98 .observeSelection(rangeButton);
99 final ISWTObservableValue textSelected = SWTObservables
100 .observeSelection(textButton);
101
102 // Note that ControlUpdater is not API.
103 new ControlUpdater(oneOfTwo) {
104 protected void updateControl() {
105 if (((Boolean) rangeSelected.getValue()).booleanValue()) {
106 stackLayout.topControl = rangeGroup;
107 oneOfTwo.layout();
108 } else if (((Boolean) textSelected.getValue()).booleanValue()) {
109 stackLayout.topControl = textGroup;
110 oneOfTwo.layout();
111 }
112 }
113 };
114 }
115 }