/* Copyright 2012-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.snaker.designer.policies;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.editpolicies.ConnectionEditPolicy;
import org.eclipse.gef.requests.GroupRequest;
import org.snaker.designer.commands.DeleteConnectionCommand;
import org.snaker.designer.model.Transition;
/**
* 变迁编辑策略
* @author yuqs
* @version 1.0
*/
public class TransitionEditPolicy extends ConnectionEditPolicy {
@Override
protected Command getDeleteCommand(GroupRequest request) {
DeleteConnectionCommand command = new DeleteConnectionCommand();
Transition t = (Transition) getHost().getModel();
command.setTransition(t);
command.setSource(t.getSource());
command.setTarget(t.getTarget());
return command;
}
@Override
public Command getCommand(Request request) {
if (REQ_CREATE.equals(request.getType())) {
return getSplitConnectionCommand(request);
}
return super.getCommand(request);
}
protected Command getSplitConnectionCommand(Request request) {
return null;
}
}