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/*****************************************************************************
* Copyright (c) 2018 CEA LIST, EclipseSource and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* EclipseSource - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.edit.parts;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gmf.runtime.notation.Connector;
import org.eclipse.gmf.runtime.notation.IntValueStyle;
import org.eclipse.gmf.runtime.notation.NamedStyle;
import org.eclipse.gmf.runtime.notation.NotationPackage;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.DurationLinkSelectionHandlesEditPolicy;
import org.eclipse.papyrus.uml.diagram.sequence.figures.DurationLinkFigure;
public class CustomDurationObservationLinkEditPart extends DurationObservationLinkEditPart {
/**
* Constructor.
*
* @param view
*/
public CustomDurationObservationLinkEditPart(View view) {
super(view);
}
@Override
protected void createDefaultEditPolicies() {
super.createDefaultEditPolicies();
installEditPolicy(EditPolicy.CONNECTION_ENDPOINTS_ROLE, new DurationLinkSelectionHandlesEditPolicy(this, getEditingDomain()));
}
@Override
protected void refreshVisuals() {
refreshArrowDelta();
super.refreshVisuals();
}
protected void refreshArrowDelta() {
Connector connector = (Connector) getNotationView();
NamedStyle namedStyle = connector.getNamedStyle(NotationPackage.Literals.INT_VALUE_STYLE, DurationLinkFigure.DELTA_VIEW_STYLE);
if (namedStyle instanceof IntValueStyle) {
int delta = ((IntValueStyle) namedStyle).getIntValue();
getPrimaryShape().setArrowPositionDelta(delta);
} else {
// no style - reset value
getPrimaryShape().setArrowPositionDelta(0);
}
}
@Override
protected void handleNotificationEvent(Notification event) {
if (isDeltaIntValueStyle(event.getNotifier()) ||
(event.getNotifier() == getNotationView()
&& event.getFeature() == NotationPackage.Literals.VIEW__STYLES &&
(isDeltaIntValueStyle(event.getNewValue()) ||
(event.getNewValue() == null && isDeltaIntValueStyle(event.getOldValue()))))) {
refreshArrowDelta();
}
super.handleNotificationEvent(event);
}
private boolean isDeltaIntValueStyle(Object object) {
return object instanceof IntValueStyle && DurationLinkFigure.DELTA_VIEW_STYLE.equals(((IntValueStyle) object).getName());
}
}
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