| /******************************************************************************* |
| * Copyright (c) 2007 Brad Reynolds and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Brad Reynolds - initial API and implementation |
| ******************************************************************************/ |
| |
| package org.eclipse.jface.examples.databinding.snippets; |
| |
| import java.beans.PropertyChangeListener; |
| import java.beans.PropertyChangeSupport; |
| |
| import org.eclipse.core.databinding.DataBindingContext; |
| import org.eclipse.core.databinding.UpdateValueStrategy; |
| import org.eclipse.core.databinding.beans.BeansObservables; |
| import org.eclipse.core.databinding.observable.Realm; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.jface.databinding.swt.SWTObservables; |
| import org.eclipse.jface.databinding.viewers.ViewersObservables; |
| import org.eclipse.jface.viewers.ArrayContentProvider; |
| import org.eclipse.jface.viewers.ListViewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * Snippet that displays a simple master detail use case. A list of persons is |
| * displayed in a list and upon selection the name of the selected person will |
| * be displayed in a Text widget. |
| */ |
| public class Snippet010MasterDetail { |
| public static void main(String[] args) { |
| final Display display = new Display(); |
| Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() { |
| public void run() { |
| Shell shell = new Shell(display); |
| shell.setLayout(new GridLayout()); |
| |
| Person[] persons = new Person[] { new Person("Me"), |
| new Person("Myself"), new Person("I") }; |
| |
| ListViewer viewer = new ListViewer(shell); |
| viewer.setContentProvider(new ArrayContentProvider()); |
| viewer.setInput(persons); |
| |
| Text name = new Text(shell, SWT.BORDER | SWT.READ_ONLY); |
| |
| // 1. Observe changes in selection. |
| IObservableValue selection = ViewersObservables |
| .observeSingleSelection(viewer); |
| |
| // 2. Observe the name property of the current selection. |
| IObservableValue detailObservable = BeansObservables |
| .observeDetailValue(Realm.getDefault(), selection, |
| "name", String.class); |
| |
| // 3. Bind the Text widget to the name detail (selection's |
| // name). |
| new DataBindingContext().bindValue(SWTObservables.observeText( |
| name, SWT.None), detailObservable, |
| new UpdateValueStrategy(false, |
| UpdateValueStrategy.POLICY_NEVER), null); |
| |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| } |
| }); |
| display.dispose(); |
| } |
| |
| public static class Person { |
| private String name; |
| private PropertyChangeSupport changeSupport = new PropertyChangeSupport(this); |
| |
| Person(String name) { |
| this.name = name; |
| } |
| |
| public void addPropertyChangeListener(PropertyChangeListener listener) { |
| changeSupport.addPropertyChangeListener(listener); |
| } |
| |
| public void removePropertyChangeListener(PropertyChangeListener listener) { |
| changeSupport.removePropertyChangeListener(listener); |
| } |
| |
| /** |
| * @return Returns the name. |
| */ |
| public String getName() { |
| return name; |
| } |
| |
| public String toString() { |
| return name; |
| } |
| } |
| } |