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/*****************************************************************************
* Copyright (c) 2009-2011 CEA LIST.
*
*
* 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:
* Yann Tanguy (CEA LIST) yann.tanguy@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.component.custom.edit.policies.itemsemantic;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.UnexecutableCommand;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.services.edit.service.ElementEditServiceUtils;
import org.eclipse.papyrus.infra.services.edit.service.IElementEditService;
import org.eclipse.papyrus.uml.diagram.component.custom.edit.command.ConnectorCreateCommand;
import org.eclipse.papyrus.uml.diagram.component.edit.parts.ConnectorEditPart;
import org.eclipse.papyrus.uml.diagram.component.providers.UMLElementTypes;
import org.eclipse.papyrus.uml.service.types.utils.RequestParameterConstants;
/**
* <pre>
* This class provides a custom edit policy used to replace the SEMANTIC_ROLE
* generated for the Property element (when used as Composite Part)
*
* TODO : This should probably also manage Port clean removal (semantic deletion causes issues)
* </pre>
*/
public class PropertyPartItemSemanticEditPolicyCN extends org.eclipse.papyrus.uml.diagram.component.edit.policies.PropertyItemSemanticEditPolicy {
/**
* <pre>
* Calls a custom creation command to allow the creation of a Port on a Property.
* The Property has to be typed by a StructuredClassifier.
*
* {@inheritDoc}
* </pre>
*/
@Override
protected Command getCreateCommand(CreateElementRequest req) {
if(org.eclipse.papyrus.uml.diagram.component.providers.UMLElementTypes.Port_3069 == req.getElementType()) {
return getGEFWrapper(new org.eclipse.papyrus.uml.diagram.component.custom.command.PortCreateCommand(req));
}
return super.getCreateCommand(req);
}
/**
* <pre>
* Forbid direct destruction of Property in case the graphical parent is not
* the semantic parent.
*
* {@inheritDoc}
* </pre>
*/
@Override
protected Command getDestroyElementCommand(DestroyElementRequest req) {
EObject graphicalParent = ((GraphicalEditPart)getHost().getParent()).resolveSemanticElement();
EObject semanticParent = req.getElementToDestroy().eContainer();
if(graphicalParent != semanticParent) {
return UnexecutableCommand.INSTANCE;
}
return super.getDestroyElementCommand(req);
}
/**
* <pre>
* Calls a custom creation command to allow the creation of a Connector connected to a Property
* on its source end.
*
* {@inheritDoc}
* </pre>
*/
@Override
protected Command getStartCreateRelationshipCommand(CreateRelationshipRequest req) {
if(UMLElementTypes.Connector_4019 == req.getElementType()) {
req.setParameter(org.eclipse.papyrus.uml.diagram.component.custom.edit.policies.GraphicalNodeEditPolicy.CONNECTOR_CREATE_REQUEST_SOURCE_GRAPHICAL, getHost());
return getGEFWrapper(new ConnectorCreateCommand(req, req.getSource(), req.getTarget()));
}
return super.getStartCreateRelationshipCommand(req);
}
/**
* <pre>
* Calls a custom creation command to allow the creation of a Connector connected to a Property
* on its target end.
*
* {@inheritDoc}
* </pre>
*/
@Override
protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
if(UMLElementTypes.Connector_4019 == req.getElementType()) {
req.setParameter(org.eclipse.papyrus.uml.diagram.component.custom.edit.policies.GraphicalNodeEditPolicy.CONNECTOR_CREATE_REQUEST_TARGET_GRAPHICAL, getHost());
return getGEFWrapper(new ConnectorCreateCommand(req, req.getSource(), req.getTarget()));
}
return super.getCompleteCreateRelationshipCommand(req);
}
@Override
protected Command getReorientRelationshipCommand(ReorientRelationshipRequest req) {
switch(getVisualID(req)) {
case ConnectorEditPart.VISUAL_ID:
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(req.getRelationship());
if(provider == null) {
return UnexecutableCommand.INSTANCE;
}
// Add graphical new end View in request parameters
View targetView = (View)getHost().getModel();
req.setParameter(RequestParameterConstants.EDGE_REORIENT_REQUEST_END_VIEW, targetView);
// Retrieve re-orient command from the Element Edit service
ICommand reorientCommand = provider.getEditCommand(req);
if(reorientCommand == null) {
return UnexecutableCommand.INSTANCE;
}
return getGEFWrapper(reorientCommand.reduce());
}
return super.getReorientRelationshipCommand(req);
}
}
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