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/*****************************************************************************
* Copyright (c) 2009 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.edit.policies;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.requests.GroupRequest;
import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.ComponentEditPolicy;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import org.eclipse.papyrus.uml.diagram.sequence.util.OperandBoundsComputeHelper;
import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceUtil;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.InteractionOperand;
public class InteractionOperandComponentEditPolicy extends ComponentEditPolicy {
/**
* Delete Combined fragment and child from the view. Also delete message if user wants. {@inheritDoc}
*/
@Override
protected Command createDeleteViewCommand(GroupRequest deleteRequest) {
if(getEditingDomain() != null) {
CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(getEditingDomain(), null);
cmd.setTransactionNestingEnabled(false);
cmd.add(new CommandProxy(super.createDeleteViewCommand(deleteRequest)));
if(getEObject() instanceof InteractionOperand) {
// Get the elements associated with the CF
List<Element> elements = SequenceUtil.getInteractionOperandAssociatedElement((InteractionOperand)getEObject());
// Create the delete view commands
SequenceDeleteHelper.deleteView(cmd, elements, getEditingDomain());
}
OperandBoundsComputeHelper.addUpdateBoundsCommandForOperandDelelete(this.getHost(),cmd);
return new ICommandProxy(cmd.reduce());
}
return null;
}
/**
* Copy from superclass as visibility is private
*
* @return the editing domain
*/
private TransactionalEditingDomain getEditingDomain() {
if(getHost() instanceof IGraphicalEditPart) {
return ((IGraphicalEditPart)getHost()).getEditingDomain();
} else if(getHost() instanceof IEditingDomainProvider) {
Object domain = ((IEditingDomainProvider)getHost()).getEditingDomain();
if(domain instanceof TransactionalEditingDomain) {
return (TransactionalEditingDomain)domain;
}
}
return null;
}
/**
* Get the EObject of the host
*
* @return the EObject or null
*/
private EObject getEObject() {
if(getHost() instanceof GraphicalEditPart) {
return ((GraphicalEditPart)getHost()).resolveSemanticElement();
}
return null;
}
}
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