/*******************************************************************************
 * Copyright (c) 2007 VTT Technical Research Centre of Finland 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:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.proconf.g3d.tools;

import java.util.Iterator;

import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.simantics.db.Resource;
import org.simantics.proconf.browsing.providers.TreeObject;
import org.simantics.proconf.g3d.common.StructuredResourceSelection;

/**
 * SelectionListener for OntologyExplorer
 * 
 * Returns selection as StrcturedResourceSelection
 * 
 * @author Marko Luukkainen
 *
 */
public abstract class OESelectionListener implements ISelectionChangedListener { 
	@SuppressWarnings("unchecked")
	public void selectionChanged(SelectionChangedEvent event) {
		IStructuredSelection s = (IStructuredSelection)event.getSelection();
		StructuredResourceSelection sel = new StructuredResourceSelection();
		Iterator<TreeObject> i = s.iterator();
		while(i.hasNext()) {
			TreeObject node = i.next();
			sel.add((Resource)node.getAdapter(Resource.class));
		}
		resourceSelectionUpdated(sel);
	}
	
	protected abstract void resourceSelectionUpdated(StructuredResourceSelection selection);
}