/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jface.tests.viewers.interactive;

import java.util.ArrayList;

import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;

public class Filter extends ViewerFilter {

	public Object[] filter(Viewer viewer, Object parent, Object[] elements) {
		ArrayList result = new ArrayList();
		for (int i = 0; i < elements.length; ++i) {
			 // toss every second item
			if (i % 2 == 1) {
				result.add(elements[i]);
			}
		}
		return result.toArray();
	}
	public boolean isFilterProperty(Object element, Object aspect) {
		return false;
	}
/* (non-Javadoc)
 * Method declared on ViewerFilter
 */
public boolean select(Viewer viewer, Object parentElement, Object element) {
	// not used
	return false;
}
}