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/*****************************************************************************
* 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:
*
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.properties.constraint;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.gmf.runtime.notation.DescriptionStyle;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.NotationPackage;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.constraints.constraints.AbstractConstraint;
import org.eclipse.papyrus.infra.constraints.constraints.Constraint;
//import org.eclipse.papyrus.infra.gmfdiag.common.providers.ShapeDecorator;
/**
* Constraint that test if selection can be decorated
*/
public class IsDecorableElementConstraint extends AbstractConstraint {
/**
* {@inheritDoc}
*/
public boolean match(Object selection) {
if(selection instanceof IAdaptable) {
View node = (View)((IAdaptable)selection).getAdapter(View.class);
if(node != null && !(node instanceof Diagram)) {
DescriptionStyle descStyle = (DescriptionStyle)node.getStyle(NotationPackage.eINSTANCE.getDescriptionStyle());
if(descStyle != null) {
return true;
}
}
}
return false;
}
/**
* {@inheritDoc}
*/
@Override
protected boolean equivalent(Constraint constraint) {
if(constraint == null) {
return false;
}
return constraint instanceof IsDecorableElementConstraint;
}
}
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