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/*****************************************************************************
* Copyright (c) 2010 CEA
*
*
* 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:
* Atos Origin - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.command;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateConnectionViewRequest.ConnectionViewDescriptor;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.Bendpoints;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.IdentityAnchor;
import org.eclipse.gmf.runtime.notation.NotationFactory;
import org.eclipse.gmf.runtime.notation.RelativeBendpoints;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.gmf.runtime.notation.datatype.RelativeBendpoint;
import org.eclipse.papyrus.uml.diagram.sequence.util.OccurrenceSpecificationHelper;
import org.eclipse.uml2.uml.ExecutionSpecification;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.MessageSort;
/**
* Command used to change the target of an edge.
* It create an IdentityAnchor to attach the edge.
*
* @author Mathieu Velten
*
*/
public class ChangeEdgeTargetCommand extends AbstractTransactionalCommand {
protected CreateElementAndNodeCommand createElementAndNodeCommand;
protected ConnectionViewDescriptor descriptor;
protected String anchorId;
/**
*
* @param editingDomain
* the editing domain.
* @param createElementAndNodeCommand
* used to retrieve the target new node of the edge.
* @param descriptor
* used to retrieve the edge.
* @param anchorId
* the identity of the anchor which will be created to attach the edge.
*/
public ChangeEdgeTargetCommand(TransactionalEditingDomain editingDomain, CreateElementAndNodeCommand createElementAndNodeCommand, ConnectionViewDescriptor descriptor, String anchorId) {
super(editingDomain, "Change message graphical target", null);
this.createElementAndNodeCommand = createElementAndNodeCommand;
this.descriptor = descriptor;
this.anchorId = anchorId;
}
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
// retrieve the edge from the descriptor
Object obj = descriptor.getAdapter(Edge.class);
if(obj instanceof Edge) {
Edge edge = (Edge)obj;
View newTarget = createElementAndNodeCommand.getCreatedView();
edge.setTarget(newTarget);
IdentityAnchor anchor = NotationFactory.eINSTANCE.createIdentityAnchor();
anchor.setId(anchorId);
edge.setTargetAnchor(anchor);
//reset bendpoints to target
Bendpoints bendpoints = edge.getBendpoints();
if(bendpoints instanceof RelativeBendpoints) {
List points = ((RelativeBendpoints)bendpoints).getPoints();
if(!points.isEmpty()) {
List<RelativeBendpoint> newPoints = new ArrayList<RelativeBendpoint>();
RelativeBendpoint first = (RelativeBendpoint)points.get(0);
RelativeBendpoint last = (RelativeBendpoint)points.get(1);
RelativeBendpoint rb1 = new RelativeBendpoint(first.getSourceX(), first.getSourceY(), first.getTargetX() - 8, first.getTargetY());
RelativeBendpoint rb2 = new RelativeBendpoint(last.getSourceX() + 8, last.getSourceY(), last.getTargetX(), 0);
newPoints.add(rb1);
for(int i = 1; i < points.size() - 1; i++) {
newPoints.add((RelativeBendpoint)points.get(i));
}
newPoints.add(rb2);
((RelativeBendpoints)bendpoints).setPoints(newPoints);
}
}
//Reset message end to target ExecutionSpecification, See https://bugs.eclipse.org/bugs/show_bug.cgi?id=402975
EObject edgeElement = ViewUtil.resolveSemanticElement(edge);
EObject targetElement = ViewUtil.resolveSemanticElement(newTarget);
if(edgeElement instanceof Message && MessageSort.SYNCH_CALL_LITERAL == ((Message)edgeElement).getMessageSort() && targetElement instanceof ExecutionSpecification) {
OccurrenceSpecificationHelper.resetExecutionStart((ExecutionSpecification)targetElement, ((Message)edgeElement).getReceiveEvent());
}
}
return null;
}
}
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