/*******************************************************************************
 * Copyright (c) 2010-2015 Henshin developers. 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:
 *     TU Berlin, University of Luxembourg, SES S.A.
 *******************************************************************************/
/**
 * 
 */
package de.tub.tfs.henshin.editor.editparts.transformation_unit.graphical;

import org.eclipse.emf.henshin.model.Rule;
import org.eclipse.emf.henshin.model.Unit;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.XYLayoutEditPolicy;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.gef.requests.CreateRequest;

import de.tub.tfs.henshin.editor.commands.transformation_unit.AddTransformationUnitCommand;

/**
 * The Class ConditionalUnitPartASSubUnitXYLayoutEditPolicy.
 */
public class TransformationUnitPartASSubUnitXYLayoutEditPolicy extends
		XYLayoutEditPolicy implements EditPolicy {

	@Override
	protected Command createChangeConstraintCommand(
			ChangeBoundsRequest request, EditPart child, Object constraint) {
		// TODO Auto-generated method stub
		return super.createChangeConstraintCommand(request, child, constraint);
	}
	

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.gef.editpolicies.LayoutEditPolicy#getCreateCommand(org.eclipse
	 * .gef.requests.CreateRequest)
	 */
	@Override
	protected Command getCreateCommand(CreateRequest request) {
		Command command = null;
		if (request.getNewObject() instanceof Rule) {
			command = new AddTransformationUnitCommand(
					(Unit) getHost().getModel(),
					(Unit) request.getNewObject());

		}
		return command;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy#getAddCommand
	 * (org.eclipse.gef.Request)
	 */
	@Override
	protected Command getAddCommand(Request generic) {
		return null;
	}

}