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comparison org.eclipse.jface.examples.databinding/src/org/eclipse/jface/examples/databinding/snippets/Snippet005MenuUpdater.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) 2006, 2007 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 * Brad Reynolds - bug 116920
11 *******************************************************************************/
12 package org.eclipse.jface.examples.databinding.snippets;
13
14 import java.util.Date;
15 import java.util.Iterator;
16
17 import org.eclipse.core.databinding.observable.Realm;
18 import org.eclipse.core.databinding.observable.list.WritableList;
19 import org.eclipse.jface.databinding.swt.SWTObservables;
20 import org.eclipse.jface.internal.databinding.provisional.swt.MenuUpdater;
21 import org.eclipse.swt.SWT;
22 import org.eclipse.swt.widgets.Display;
23 import org.eclipse.swt.widgets.Menu;
24 import org.eclipse.swt.widgets.MenuItem;
25 import org.eclipse.swt.widgets.Shell;
26
27 /**
28 */
29 public class Snippet005MenuUpdater {
30 public static void main(String[] args) {
31 final Display display = new Display();
32 Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
33 public void run() {
34 Shell shell = new Shell(display);
35
36 final WritableList menuItemStrings = new WritableList();
37 display.asyncExec(new Runnable() {
38 public void run() {
39 System.out.println("adding item");
40 menuItemStrings.add(new Date().toString());
41 display.timerExec(5000, this);
42 }
43 });
44
45 Menu bar = new Menu(shell, SWT.BAR);
46 shell.setMenuBar(bar);
47 MenuItem fileItem = new MenuItem(bar, SWT.CASCADE);
48 fileItem.setText("&Test Menu");
49 final Menu submenu = new Menu(shell, SWT.DROP_DOWN);
50 fileItem.setMenu(submenu);
51 new MenuUpdater(submenu) {
52 protected void updateMenu() {
53 System.out.println("updating menu");
54 MenuItem[] items = submenu.getItems();
55 int itemIndex = 0;
56 for (Iterator it = menuItemStrings.iterator(); it
57 .hasNext();) {
58 MenuItem item;
59 if (itemIndex < items.length) {
60 item = items[itemIndex++];
61 } else {
62 item = new MenuItem(submenu, SWT.NONE);
63 }
64 String string = (String) it.next();
65 item.setText(string);
66 }
67 while (itemIndex < items.length) {
68 items[itemIndex++].dispose();
69 }
70 }
71 };
72
73 shell.open();
74
75 // The SWT event loop
76 while (!shell.isDisposed()) {
77 if (!display.readAndDispatch()) {
78 display.sleep();
79 }
80 }
81 }
82 });
83 display.dispose();
84 }
85 }