/*******************************************************************************
* 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.rule.graphical;
import org.eclipse.emf.henshin.model.Node;
import org.eclipse.emf.henshin.model.Parameter;
import org.eclipse.emf.henshin.model.Rule;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.requests.CreateRequest;
import de.tub.tfs.henshin.editor.commands.transformation_unit.parameter.CreateParameterAndRenameNodeCommand;
import de.tub.tfs.henshin.editor.commands.transformation_unit.parameter.CreateParameterCommand;
import de.tub.tfs.henshin.editor.editparts.graph.graphical.NodeXYLayoutEditPolicy;
import de.tub.tfs.henshin.editor.util.ParameterUtil;
/**
* The Class NodeRuleXYLayoutEditPolicy.
*
* @author Johann
*/
public class NodeRuleXYLayoutEditPolicy extends NodeXYLayoutEditPolicy {
/*
* (non-Javadoc)
*
* @see
* henshineditor.editparts.graphs.NodeXYLayoutEditPolicy#getCreateCommand
* (org.eclipse.gef.requests.CreateRequest)
*/
@Override
protected Command getCreateCommand(CreateRequest request) {
Command command = super.getCreateCommand(request);
if (request.getNewObject() instanceof Parameter) {
Node node = (Node) getHost().getModel();
Rule rule = (Rule) node.getGraph().eContainer();
if (node.getName() != null && !node.getName().isEmpty()) {
if (ParameterUtil.getParameter(node) != null) {
return null;
}
command = new CreateParameterCommand(rule, node.getName());
} else {
command = new CreateParameterAndRenameNodeCommand(rule, node,
"");
}
}
return command;
}
}