org.eclipse.xwt.tests/samples/org/eclipse/xwt/tests/snipppets/Snippet026AnonymousBeanProperties.java - xwt/org.eclipse.xwt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008, 2009 Matthew Hall 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:
  *     Matthew Hall - initial API and implementation (bug 247997)
  *     Matthew Hall - bugs 261843, 260337, 265561
  ******************************************************************************/

 package org.eclipse.xwt.tests.snipppets;

 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
 import java.beans.PropertyChangeSupport;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.Set;
 import java.util.TreeSet;

 import org.eclipse.core.databinding.DataBindingContext;
 import org.eclipse.core.databinding.beans.BeanProperties;
 import org.eclipse.core.databinding.observable.Realm;
 import org.eclipse.core.databinding.observable.set.SetDiff;
 import org.eclipse.core.databinding.observable.value.ComputedValue;
 import org.eclipse.core.databinding.observable.value.IObservableValue;
 import org.eclipse.core.databinding.property.INativePropertyListener;
 import org.eclipse.core.databinding.property.IProperty;
 import org.eclipse.core.databinding.property.ISimplePropertyListener;
 import org.eclipse.core.databinding.property.NativePropertyListener;
 import org.eclipse.core.databinding.property.set.DelegatingSetProperty;
 import org.eclipse.core.databinding.property.set.ISetProperty;
 import org.eclipse.core.databinding.property.set.SimpleSetProperty;
 import org.eclipse.jface.databinding.swt.SWTObservables;
 import org.eclipse.jface.databinding.swt.WidgetProperties;
 import org.eclipse.jface.databinding.viewers.ViewerProperties;
 import org.eclipse.jface.databinding.viewers.ViewerSupport;
 import org.eclipse.jface.viewers.ArrayContentProvider;
 import org.eclipse.jface.viewers.ComboViewer;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.swt.widgets.Tree;
 import org.eclipse.swt.widgets.TreeColumn;

 /**
  * @since 3.2
  *
  */
 public class Snippet026AnonymousBeanProperties {
 	private ComboViewer statusViewer;
 	private Combo combo;
 	private Text nameText;
 	private TreeViewer contactViewer;

 	public static void main(String[] args) {
 		Display display = new Display();
 		Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
 			public void run() {
 				try {
 					Snippet026AnonymousBeanProperties window = new Snippet026AnonymousBeanProperties();
 					window.open();
 				} catch (Exception e) {
 					e.printStackTrace();
 				}
 			}
 		});
 	}

 	private ApplicationModel model;
 	private Shell shell;
 	private Tree tree;

 	// Minimal JavaBeans support
 	public static abstract class AbstractModelObject {
 		private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
 				this);

 		public void addPropertyChangeListener(PropertyChangeListener listener) {
 			propertyChangeSupport.addPropertyChangeListener(listener);
 		}

 		public void addPropertyChangeListener(String propertyName,
 				PropertyChangeListener listener) {
 			propertyChangeSupport.addPropertyChangeListener(propertyName,
 					listener);
 		}

 		public void removePropertyChangeListener(PropertyChangeListener listener) {
 			propertyChangeSupport.removePropertyChangeListener(listener);
 		}

 		public void removePropertyChangeListener(String propertyName,
 				PropertyChangeListener listener) {
 			propertyChangeSupport.removePropertyChangeListener(propertyName,
 					listener);
 		}

 		protected void firePropertyChange(String propertyName, Object oldValue,
 				Object newValue) {
 			propertyChangeSupport.firePropertyChange(propertyName, oldValue,
 					newValue);
 		}
 	}

 	public static class ContactGroup extends AbstractModelObject implements
 			Comparable {
 		private String name;
 		private Set contacts = new TreeSet();

 		ContactGroup(String name) {
 			this.name = checkNull(name);
 		}

 		private String checkNull(String string) {
 			if (string == null)
 				throw new NullPointerException();
 			return string;
 		}

 		public String getName() {
 			return name;
 		}

 		public void setName(String name) {
 			firePropertyChange("name", this.name, this.name = checkNull(name));
 		}

 		public Set getContacts() {
 			return new TreeSet(contacts);
 		}

 		public void addContact(Contact contact) {
 			Set oldValue = getContacts();
 			contacts.add(contact);
 			Set newValue = getContacts();
 			firePropertyChange("contacts", oldValue, newValue);
 		}

 		public void removeContact(Contact contact) {
 			Set oldValue = getContacts();
 			contacts.remove(contact);
 			Set newValue = getContacts();
 			firePropertyChange("contacts", oldValue, newValue);
 		}

 		public int compareTo(Object o) {
 			ContactGroup that = (ContactGroup) o;
 			return this.name.compareTo(that.name);
 		}
 	}

 	public static class Contact extends AbstractModelObject implements
 			Comparable {
 		private String name;
 		private String status;

 		private String checkNull(String string) {
 			if (string == null)
 				throw new NullPointerException();
 			return string;
 		}

 		public Contact(String name, String status) {
 			this.name = checkNull(name);
 			this.status = checkNull(status);
 		}

 		public String getName() {
 			return name;
 		}

 		public void setName(String name) {
 			firePropertyChange("name", this.name, this.name = checkNull(name));
 		}

 		public String getStatus() {
 			return status;
 		}

 		public void setStatus(String status) {
 			firePropertyChange("status", this.status,
 					this.status = checkNull(status));
 		}

 		public int compareTo(Object o) {
 			Contact that = (Contact) o;
 			int result = this.name.compareTo(that.name);
 			if (result == 0)
 				result = this.status.compareTo(that.status);
 			return result;
 		}
 	}

 	public static class ApplicationModel extends AbstractModelObject {
 		private Set groups = new TreeSet();

 		public Set getGroups() {
 			return new TreeSet(groups);
 		}

 		public void setGroups(Set groups) {
 			Set oldValue = getGroups();
 			this.groups = new TreeSet(groups);
 			Set newValue = getGroups();
 			firePropertyChange("groups", oldValue, newValue);
 		}
 	}

 	/**
 	 * Set property for the "contacts" property of a ContactGroup. Since
 	 * ContactGroup does not have a setContacts() method we have to write our
 	 * own property to apply set changes incrementally through the addContact
 	 * and removeContact methods.
 	 */
 	public static class ContactGroupContactsProperty extends SimpleSetProperty {
 		public Object getElementType() {
 			return Contact.class;
 		}

 		protected Set doGetSet(Object source) {
 			if (source == null)
 				return Collections.EMPTY_SET;
 			return ((ContactGroup) source).getContacts();
 		}

 		protected void doSetSet(Object source, Set set, SetDiff diff) {
 			ContactGroup group = (ContactGroup) source;
 			for (Iterator it = diff.getRemovals().iterator(); it.hasNext();) {
 				Contact contact = (Contact) it.next();
 				group.removeContact(contact);
 			}
 			for (Iterator it = diff.getAdditions().iterator(); it.hasNext();) {
 				Contact contact = (Contact) it.next();
 				group.addContact(contact);
 			}
 		}

 		public INativePropertyListener adaptListener(
 				final ISimplePropertyListener listener) {
 			return new Listener(this, listener);
 		}

 		private class Listener extends NativePropertyListener implements
 				PropertyChangeListener {
 			Listener(IProperty property, ISimplePropertyListener listener) {
 				super(property, listener);
 			}

 			public void propertyChange(PropertyChangeEvent evt) {
 				fireChange(evt.getSource(), null);
 			}

 			protected void doAddTo(Object source) {
 				((ContactGroup) source).addPropertyChangeListener("contacts",
 						this);
 			}

 			protected void doRemoveFrom(Object source) {
 				((ContactGroup) source).removePropertyChangeListener(
 						"contacts", this);
 			}
 		}
 	}

 	public void open() {
 		model = createDefaultModel();

 		final Display display = Display.getDefault();
 		createContents();
 		bindUI();
 		shell.open();
 		shell.layout();
 		while (!shell.isDisposed()) {
 			if (!display.readAndDispatch())
 				display.sleep();
 		}
 	}

 	private static final String[] statuses = new String[] { "Online", "Idle",
 			"Busy", "Offline" };

 	/**
 	 * @return
 	 */
 	private ApplicationModel createDefaultModel() {
 		ContactGroup swtGroup = new ContactGroup("SWT");
 		swtGroup.addContact(new Contact("Steve Northover", "Busy"));
 		swtGroup.addContact(new Contact("Grant Gayed", "Online"));
 		swtGroup.addContact(new Contact("Veronika Irvine", "Offline"));
 		swtGroup.addContact(new Contact("Mike Wilson", "Online"));
 		swtGroup.addContact(new Contact("Christophe Cornu", "Idle"));
 		swtGroup.addContact(new Contact("Lynne Kues", "Online"));
 		swtGroup.addContact(new Contact("Silenio Quarti", "Idle"));

 		ContactGroup jdbGroup = new ContactGroup("JFace Data Binding");
 		jdbGroup.addContact(new Contact("Boris Bokowski", "Online"));
 		jdbGroup.addContact(new Contact("Matthew Hall", "Idle"));

 		Set groups = new TreeSet();
 		groups.add(swtGroup);
 		groups.add(jdbGroup);
 		ApplicationModel model = new ApplicationModel();
 		model.setGroups(groups);

 		return model;
 	}

 	/**
 	 * Create nameMap of the window
 	 */
 	protected void createContents() {
 		shell = new Shell();
 		shell.setSize(379, 393);
 		shell.setText("Snippet026AnonymousBeanProperties");
 		final GridLayout gridLayout = new GridLayout();
 		gridLayout.numColumns = 4;
 		shell.setLayout(gridLayout);

 		contactViewer = new TreeViewer(shell, SWT.BORDER);
 		tree = contactViewer.getTree();
 		tree.setHeaderVisible(true);
 		tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 4, 1));

 		final TreeColumn nameColumn = new TreeColumn(tree, SWT.NONE);
 		nameColumn.setWidth(163);
 		nameColumn.setText("Name");

 		final TreeColumn newColumnTreeColumn = new TreeColumn(tree, SWT.NONE);
 		newColumnTreeColumn.setWidth(100);
 		newColumnTreeColumn.setText("Status");

 		final Label nameLabel = new Label(shell, SWT.NONE);
 		nameLabel.setText("Name");

 		nameText = new Text(shell, SWT.BORDER);
 		final GridData gd_nameText = new GridData(SWT.FILL, SWT.CENTER, true,
 				false);
 		nameText.setLayoutData(gd_nameText);

 		final Label statusLabel = new Label(shell, SWT.NONE);
 		statusLabel.setLayoutData(new GridData());
 		statusLabel.setText("Status");

 		statusViewer = new ComboViewer(shell, SWT.READ_ONLY);
 		combo = statusViewer.getCombo();
 		combo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
 	}

 	private void bindUI() {
 		ISetProperty treeChildrenProperty = new DelegatingSetProperty() {
 			ISetProperty modelGroups = BeanProperties.set(
 					ApplicationModel.class, "groups");
 			ISetProperty groupContacts = BeanProperties.set(ContactGroup.class,
 					"contacts");

 			protected ISetProperty doGetDelegate(Object source) {
 				if (source instanceof ApplicationModel)
 					return modelGroups;
 				if (source instanceof ContactGroup)
 					return groupContacts;
 				return null;
 			}
 		};

 		ViewerSupport.bind(contactViewer, model, treeChildrenProperty,
 				BeanProperties.values(new String[] { "name", "status" }));

 		contactViewer.expandAll();

 		final IObservableValue selection = ViewerProperties.singleSelection()
 				.observe(contactViewer);

 		DataBindingContext dbc = new DataBindingContext();

 		dbc.bindValue(WidgetProperties.text(SWT.Modify).observe(nameText),
 				BeanProperties.value("name").observeDetail(selection));

 		statusViewer.setContentProvider(new ArrayContentProvider());
 		statusViewer.setInput(statuses);

 		dbc.bindValue(ViewerProperties.singleSelection().observe(statusViewer),
 				BeanProperties.value("status").observeDetail(selection));

 		dbc.bindValue(WidgetProperties.enabled().observe(
 				statusViewer.getControl()), new ComputedValue() {
 			protected Object calculate() {
 				return Boolean.valueOf(selection.getValue() instanceof Contact);
 			}
 		});
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2008, 2009 Matthew Hall 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:
	* Matthew Hall - initial API and implementation (bug 247997)
	* Matthew Hall - bugs 261843, 260337, 265561
	******************************************************************************/

	package org.eclipse.xwt.tests.snipppets;

	import java.beans.PropertyChangeEvent;
	import java.beans.PropertyChangeListener;
	import java.beans.PropertyChangeSupport;
	import java.util.Collections;
	import java.util.Iterator;
	import java.util.Set;
	import java.util.TreeSet;

	import org.eclipse.core.databinding.DataBindingContext;
	import org.eclipse.core.databinding.beans.BeanProperties;
	import org.eclipse.core.databinding.observable.Realm;
	import org.eclipse.core.databinding.observable.set.SetDiff;
	import org.eclipse.core.databinding.observable.value.ComputedValue;
	import org.eclipse.core.databinding.observable.value.IObservableValue;
	import org.eclipse.core.databinding.property.INativePropertyListener;
	import org.eclipse.core.databinding.property.IProperty;
	import org.eclipse.core.databinding.property.ISimplePropertyListener;
	import org.eclipse.core.databinding.property.NativePropertyListener;
	import org.eclipse.core.databinding.property.set.DelegatingSetProperty;
	import org.eclipse.core.databinding.property.set.ISetProperty;
	import org.eclipse.core.databinding.property.set.SimpleSetProperty;
	import org.eclipse.jface.databinding.swt.SWTObservables;
	import org.eclipse.jface.databinding.swt.WidgetProperties;
	import org.eclipse.jface.databinding.viewers.ViewerProperties;
	import org.eclipse.jface.databinding.viewers.ViewerSupport;
	import org.eclipse.jface.viewers.ArrayContentProvider;
	import org.eclipse.jface.viewers.ComboViewer;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.swt.widgets.Tree;
	import org.eclipse.swt.widgets.TreeColumn;

	/**
	* @since 3.2
	*
	*/
	public class Snippet026AnonymousBeanProperties {
	private ComboViewer statusViewer;
	private Combo combo;
	private Text nameText;
	private TreeViewer contactViewer;

	public static void main(String[] args) {
	Display display = new Display();
	Realm.runWithDefault(SWTObservables.getRealm(display), new Runnable() {
	public void run() {
	try {
	Snippet026AnonymousBeanProperties window = new Snippet026AnonymousBeanProperties();
	window.open();
	} catch (Exception e) {
	e.printStackTrace();
	}
	}
	});
	}

	private ApplicationModel model;
	private Shell shell;
	private Tree tree;

	// Minimal JavaBeans support
	public static abstract class AbstractModelObject {
	private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
	this);

	public void addPropertyChangeListener(PropertyChangeListener listener) {
	propertyChangeSupport.addPropertyChangeListener(listener);
	}

	public void addPropertyChangeListener(String propertyName,
	PropertyChangeListener listener) {
	propertyChangeSupport.addPropertyChangeListener(propertyName,
	listener);
	}

	public void removePropertyChangeListener(PropertyChangeListener listener) {
	propertyChangeSupport.removePropertyChangeListener(listener);
	}

	public void removePropertyChangeListener(String propertyName,
	PropertyChangeListener listener) {
	propertyChangeSupport.removePropertyChangeListener(propertyName,
	listener);
	}

	protected void firePropertyChange(String propertyName, Object oldValue,
	Object newValue) {
	propertyChangeSupport.firePropertyChange(propertyName, oldValue,
	newValue);
	}
	}

	public static class ContactGroup extends AbstractModelObject implements
	Comparable {
	private String name;
	private Set contacts = new TreeSet();

	ContactGroup(String name) {
	this.name = checkNull(name);
	}

	private String checkNull(String string) {
	if (string == null)
	throw new NullPointerException();
	return string;
	}

	public String getName() {
	return name;
	}

	public void setName(String name) {
	firePropertyChange("name", this.name, this.name = checkNull(name));
	}

	public Set getContacts() {
	return new TreeSet(contacts);
	}

	public void addContact(Contact contact) {
	Set oldValue = getContacts();
	contacts.add(contact);
	Set newValue = getContacts();
	firePropertyChange("contacts", oldValue, newValue);
	}

	public void removeContact(Contact contact) {
	Set oldValue = getContacts();
	contacts.remove(contact);
	Set newValue = getContacts();
	firePropertyChange("contacts", oldValue, newValue);
	}

	public int compareTo(Object o) {
	ContactGroup that = (ContactGroup) o;
	return this.name.compareTo(that.name);
	}
	}

	public static class Contact extends AbstractModelObject implements
	Comparable {
	private String name;
	private String status;

	private String checkNull(String string) {
	if (string == null)
	throw new NullPointerException();
	return string;
	}

	public Contact(String name, String status) {
	this.name = checkNull(name);
	this.status = checkNull(status);
	}

	public String getName() {
	return name;
	}

	public void setName(String name) {
	firePropertyChange("name", this.name, this.name = checkNull(name));
	}

	public String getStatus() {
	return status;
	}

	public void setStatus(String status) {
	firePropertyChange("status", this.status,
	this.status = checkNull(status));
	}

	public int compareTo(Object o) {
	Contact that = (Contact) o;
	int result = this.name.compareTo(that.name);
	if (result == 0)
	result = this.status.compareTo(that.status);
	return result;
	}
	}

	public static class ApplicationModel extends AbstractModelObject {
	private Set groups = new TreeSet();

	public Set getGroups() {
	return new TreeSet(groups);
	}

	public void setGroups(Set groups) {
	Set oldValue = getGroups();
	this.groups = new TreeSet(groups);
	Set newValue = getGroups();
	firePropertyChange("groups", oldValue, newValue);
	}
	}

	/**
	* Set property for the "contacts" property of a ContactGroup. Since
	* ContactGroup does not have a setContacts() method we have to write our
	* own property to apply set changes incrementally through the addContact
	* and removeContact methods.
	*/
	public static class ContactGroupContactsProperty extends SimpleSetProperty {
	public Object getElementType() {
	return Contact.class;
	}

	protected Set doGetSet(Object source) {
	if (source == null)
	return Collections.EMPTY_SET;
	return ((ContactGroup) source).getContacts();
	}

	protected void doSetSet(Object source, Set set, SetDiff diff) {
	ContactGroup group = (ContactGroup) source;
	for (Iterator it = diff.getRemovals().iterator(); it.hasNext();) {
	Contact contact = (Contact) it.next();
	group.removeContact(contact);
	}
	for (Iterator it = diff.getAdditions().iterator(); it.hasNext();) {
	Contact contact = (Contact) it.next();
	group.addContact(contact);
	}
	}

	public INativePropertyListener adaptListener(
	final ISimplePropertyListener listener) {
	return new Listener(this, listener);
	}

	private class Listener extends NativePropertyListener implements
	PropertyChangeListener {
	Listener(IProperty property, ISimplePropertyListener listener) {
	super(property, listener);
	}

	public void propertyChange(PropertyChangeEvent evt) {
	fireChange(evt.getSource(), null);
	}

	protected void doAddTo(Object source) {
	((ContactGroup) source).addPropertyChangeListener("contacts",
	this);
	}

	protected void doRemoveFrom(Object source) {
	((ContactGroup) source).removePropertyChangeListener(
	"contacts", this);
	}
	}
	}

	public void open() {
	model = createDefaultModel();

	final Display display = Display.getDefault();
	createContents();
	bindUI();
	shell.open();
	shell.layout();
	while (!shell.isDisposed()) {
	if (!display.readAndDispatch())
	display.sleep();
	}
	}

	private static final String[] statuses = new String[] { "Online", "Idle",
	"Busy", "Offline" };

	/**
	* @return
	*/
	private ApplicationModel createDefaultModel() {
	ContactGroup swtGroup = new ContactGroup("SWT");
	swtGroup.addContact(new Contact("Steve Northover", "Busy"));
	swtGroup.addContact(new Contact("Grant Gayed", "Online"));
	swtGroup.addContact(new Contact("Veronika Irvine", "Offline"));
	swtGroup.addContact(new Contact("Mike Wilson", "Online"));
	swtGroup.addContact(new Contact("Christophe Cornu", "Idle"));
	swtGroup.addContact(new Contact("Lynne Kues", "Online"));
	swtGroup.addContact(new Contact("Silenio Quarti", "Idle"));

	ContactGroup jdbGroup = new ContactGroup("JFace Data Binding");
	jdbGroup.addContact(new Contact("Boris Bokowski", "Online"));
	jdbGroup.addContact(new Contact("Matthew Hall", "Idle"));

	Set groups = new TreeSet();
	groups.add(swtGroup);
	groups.add(jdbGroup);
	ApplicationModel model = new ApplicationModel();
	model.setGroups(groups);

	return model;
	}

	/**
	* Create nameMap of the window
	*/
	protected void createContents() {
	shell = new Shell();
	shell.setSize(379, 393);
	shell.setText("Snippet026AnonymousBeanProperties");
	final GridLayout gridLayout = new GridLayout();
	gridLayout.numColumns = 4;
	shell.setLayout(gridLayout);

	contactViewer = new TreeViewer(shell, SWT.BORDER);
	tree = contactViewer.getTree();
	tree.setHeaderVisible(true);
	tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 4, 1));

	final TreeColumn nameColumn = new TreeColumn(tree, SWT.NONE);
	nameColumn.setWidth(163);
	nameColumn.setText("Name");

	final TreeColumn newColumnTreeColumn = new TreeColumn(tree, SWT.NONE);
	newColumnTreeColumn.setWidth(100);
	newColumnTreeColumn.setText("Status");

	final Label nameLabel = new Label(shell, SWT.NONE);
	nameLabel.setText("Name");

	nameText = new Text(shell, SWT.BORDER);
	final GridData gd_nameText = new GridData(SWT.FILL, SWT.CENTER, true,
	false);
	nameText.setLayoutData(gd_nameText);

	final Label statusLabel = new Label(shell, SWT.NONE);
	statusLabel.setLayoutData(new GridData());
	statusLabel.setText("Status");

	statusViewer = new ComboViewer(shell, SWT.READ_ONLY);
	combo = statusViewer.getCombo();
	combo.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
	}

	private void bindUI() {
	ISetProperty treeChildrenProperty = new DelegatingSetProperty() {
	ISetProperty modelGroups = BeanProperties.set(
	ApplicationModel.class, "groups");
	ISetProperty groupContacts = BeanProperties.set(ContactGroup.class,
	"contacts");

	protected ISetProperty doGetDelegate(Object source) {
	if (source instanceof ApplicationModel)
	return modelGroups;
	if (source instanceof ContactGroup)
	return groupContacts;
	return null;
	}
	};

	ViewerSupport.bind(contactViewer, model, treeChildrenProperty,
	BeanProperties.values(new String[] { "name", "status" }));

	contactViewer.expandAll();

	final IObservableValue selection = ViewerProperties.singleSelection()
	.observe(contactViewer);

	DataBindingContext dbc = new DataBindingContext();

	dbc.bindValue(WidgetProperties.text(SWT.Modify).observe(nameText),
	BeanProperties.value("name").observeDetail(selection));

	statusViewer.setContentProvider(new ArrayContentProvider());
	statusViewer.setInput(statuses);

	dbc.bindValue(ViewerProperties.singleSelection().observe(statusViewer),
	BeanProperties.value("status").observeDetail(selection));

	dbc.bindValue(WidgetProperties.enabled().observe(
	statusViewer.getControl()), new ComputedValue() {
	protected Object calculate() {
	return Boolean.valueOf(selection.getValue() instanceof Contact);
	}
	});
	}
	}