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/*****************************************************************************
* Copyright (c) 2018 CEA LIST, Christian W. Damus, and others.
*
* 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:
* EclipseSource France - Initial API and implementation
* Christian W. Damus - bug 536486
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.edit.policies;
import java.util.Arrays;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.papyrus.uml.diagram.sequence.util.DurationLinkUtil;
import org.eclipse.papyrus.uml.service.types.element.UMLElementTypes;
import org.eclipse.papyrus.uml.service.types.utils.ElementUtil;
import org.eclipse.papyrus.uml.service.types.utils.SequenceRequestConstant;
import org.eclipse.uml2.uml.ExecutionSpecification;
import org.eclipse.uml2.uml.TimeConstraint;
/**
* Specific policy to set the contrained element for {@link TimeConstraint}.
*/
public class CustomExecutionSpecificationSemanticEditPolicy extends OccurenceSemanticEditPolicy {
@Override
protected Command getCreateCommand(CreateElementRequest req) {
if (ElementUtil.isTypeOf(req.getElementType(), UMLElementTypes.TIME_CONSTRAINT)
|| ElementUtil.isTypeOf(req.getElementType(), UMLElementTypes.TIME_OBSERVATION)) {
Object loc = req.getParameter("initialMouseLocationForCreation");
// evaluate parameters
if (!Point.class.isInstance(loc)
|| !IGraphicalEditPart.class.isInstance(getHost())
|| !ExecutionSpecification.class.isInstance(req.getContainer())) {
return super.getCreateCommand(req);
}
boolean isStart = DurationLinkUtil.isStart(((IGraphicalEditPart) getHost()).getFigure(), Point.class.cast(loc));
if (isStart) {
req.setParameter(SequenceRequestConstant.NEAREST_OCCURRENCE_SPECIFICATION, Arrays.asList(((ExecutionSpecification) req.getContainer()).getStart()));
} else {
req.setParameter(SequenceRequestConstant.NEAREST_OCCURRENCE_SPECIFICATION, Arrays.asList(((ExecutionSpecification) req.getContainer()).getFinish()));
}
}
return super.getCreateCommand(req);
}
}
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