/*
* This file is part of the OpenSCADA project
* Copyright (C) 2006-2010 TH4 SYSTEMS GmbH (http://th4-systems.com)
*
* OpenSCADA is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenSCADA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenSCADA. If not, see
* <http://opensource.org/licenses/lgpl-3.0.html> for a copy of the LGPLv3 License.
*/
package org.openscada.ca.ui.editor.config;
import java.util.Map;
import java.util.Set;
import org.eclipse.core.databinding.observable.map.IMapChangeListener;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.observable.map.MapChangeEvent;
import org.eclipse.jface.viewers.LabelProviderChangedEvent;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
public class ConfigurationCellLabelProvider extends StyledCellLabelProvider
{
private final IMapChangeListener mapChangeListener = new IMapChangeListener () {
@Override
public void handleMapChange ( final MapChangeEvent event )
{
final Set<?> affectedElements = event.diff.getChangedKeys ();
if ( !affectedElements.isEmpty () )
{
final LabelProviderChangedEvent newEvent = new LabelProviderChangedEvent ( ConfigurationCellLabelProvider.this, affectedElements.toArray () );
fireLabelProviderChanged ( newEvent );
}
}
};
private final IObservableMap[] attributeMaps;
public ConfigurationCellLabelProvider ( final IObservableMap... attributeMaps )
{
super ();
for ( int i = 0; i < attributeMaps.length; i++ )
{
attributeMaps[i].addMapChangeListener ( this.mapChangeListener );
}
this.attributeMaps = attributeMaps;
}
@Override
public void dispose ()
{
for ( int i = 0; i < this.attributeMaps.length; i++ )
{
this.attributeMaps[i].removeMapChangeListener ( this.mapChangeListener );
}
super.dispose ();
}
@Override
public void update ( final ViewerCell cell )
{
final Map.Entry<?, ?> cfg = (Map.Entry<?, ?>)cell.getElement ();
switch ( cell.getColumnIndex () )
{
case 0:
cell.setText ( "" + cfg.getKey () );
break;
case 1:
cell.setText ( "" + cfg.getValue () );
break;
}
super.update ( cell );
}
}