/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.gd.jpdl.policy;
import org.jbpm.gd.common.command.AbstractEdgeCreateCommand;
import org.jbpm.gd.common.command.AbstractEdgeMoveCommand;
import org.jbpm.gd.common.model.SemanticElement;
import org.jbpm.gd.common.notation.NotationElement;
import org.jbpm.gd.common.policy.GraphicalNodeEditPolicy;
import org.jbpm.gd.jpdl.command.EdgeCreateCommand;
import org.jbpm.gd.jpdl.command.EdgeMoveCommand;
import org.jbpm.gd.jpdl.model.EndState;
import org.jbpm.gd.jpdl.model.Fork;
import org.jbpm.gd.jpdl.model.Join;
import org.jbpm.gd.jpdl.model.StartState;
public class NodeGraphicalNodeEditPolicy extends GraphicalNodeEditPolicy {
protected boolean canStart() {
SemanticElement semanticElement = ((NotationElement)getHost().getModel()).getSemanticElement();
if (semanticElement instanceof EndState) {
return false;
} else if (semanticElement instanceof Join
&& ((Join)semanticElement).getTransitions().length == 1) {
return false;
} else {
return true;
}
}
protected boolean canStop() {
SemanticElement semanticElement = ((NotationElement)getHost().getModel()).getSemanticElement();
if (semanticElement instanceof StartState) {
return false;
} else if (semanticElement instanceof Fork
&& ((Fork)semanticElement).getTransitions().length == 1) {
return false;
} else {
return true;
}
}
protected AbstractEdgeCreateCommand createEdgeCreateCommand() {
return new EdgeCreateCommand();
}
protected AbstractEdgeMoveCommand createEdgeMoveCommand() {
return new EdgeMoveCommand();
}
}