/**
* Copyright (c) 2009 Bestsolution.at and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* Tom Schindl<tom.schindl@bestsolution.at> - Initial API and implementation
*/
package org.eclipse.emf.example.databinding.project.ui.rcp.databinding;
import java.text.MessageFormat;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.jface.databinding.viewers.ObservableMapCellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
/**
* Implementation of a cell label provider which provides support for formatting using {@link MessageFormat#format(String, Object...)}
*/
public class GenericMapCellLabelProvider extends ObservableMapCellLabelProvider
{
private IObservableMap[] attributeMaps;
private String messagePattern;
/**
* Create a new label provider
* @param messagePattern the message pattern
* @param attributeMaps the values to observe
*/
public GenericMapCellLabelProvider(String messagePattern, IObservableMap... attributeMaps)
{
super(attributeMaps);
this.messagePattern = messagePattern;
this.attributeMaps = attributeMaps;
}
@Override
public void update(ViewerCell cell)
{
Object element = cell.getElement();
Object[] values = new Object [attributeMaps.length];
int i = 0;
for (IObservableMap m : attributeMaps)
{
values[i++] = m.get(element);
if (values[i - 1] == null)
{
cell.setText("");
return;
}
}
cell.setText(MessageFormat.format(messagePattern, values));
}
}