/*****************************************************************************
* Copyright (c) 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.properties.constraint;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.constraints.constraints.EMFInstanceOfConstraint;
import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
/**
* A constraint for the GMF Notation metamodel
* Retrieves the notation model from the selection,
* then applies an EMFInstanceOfConstraint on the resulting
* EObject
*
* @author Camille Letavernier
*
*/
public class GMFNotationConstraint extends EMFInstanceOfConstraint {
/**
* {@inheritDoc}
*/
@Override
public boolean match(Object selection) {
View view = null;
if(selection instanceof EditPart) {
EditPart part = (EditPart)selection;
Object model = part.getModel();
if(model instanceof View) {
view = (View)model;
}
}
EObject eObject = EMFHelper.getEObject(selection);
if(eObject instanceof View) {
view = (View)eObject;
}
return view == null ? false : super.match(view);
}
}