/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.gef.examples.logicdesigner.model;

import org.eclipse.draw2d.geometry.Dimension;

abstract public class SimpleOutput
	extends LogicSubpart
{

static final long serialVersionUID = 1;

private static int count;
public static String TERMINAL_OUT = "OUT";  //$NON-NLS-1$

public String getNewID(){
	return Integer.toString(count++);
}

public Object getPropertyValue(Object propName) {
	if( ID_SIZE.equals(propName)){
		return new String("("+getSize().width+","+getSize().height+")");//$NON-NLS-3$//$NON-NLS-2$//$NON-NLS-1$
	}
	return super.getPropertyValue(propName);
}

abstract public boolean getResult();

public Dimension getSize(){
	return new Dimension(-1, -1);
}

public void removeOutput(Wire w){
	outputs.remove(w);
}

/**
 * Nulls out any changes to this and its subclasses as
 * they are of fixed size.
 */
public void setPropertyValue(Object id, Object value){
	if(ID_SIZE.equals(id)) 
		super.setPropertyValue(id,new Dimension(getSize()));
	else
		super.setPropertyValue(id,value);
}

public void update(){
	setOutput(TERMINAL_OUT, getResult());
}

}