/**
* Copyright (c) 2010 committers of YAKINDU 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:
* committers of YAKINDU - initial API and implementation
*
*/
package org.yakindu.sct.ui.editor.policies;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.diagram.core.util.ViewType;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CanonicalConnectionEditPolicy;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.View;
import org.yakindu.sct.model.sgraph.Region;
import org.yakindu.sct.model.sgraph.Transition;
import org.yakindu.sct.model.sgraph.Vertex;
import org.yakindu.sct.ui.editor.providers.SemanticHints;
import org.yakindu.sct.ui.editor.utils.SemanticHintUtil;
import com.google.common.collect.Lists;
/**
*
* @author andreas muelder - Initial contribution and API
*
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
public class RegionCompartmentCanonicalEditPolicy extends CanonicalConnectionEditPolicy {
@Override
protected List getSemanticChildrenList() {
return getSemanticHost().getVertices();
}
@Override
protected List getSemanticConnectionsList() {
List<Transition> transitions = Lists.newArrayList();
EList<Vertex> vertices = getSemanticHost().getVertices();
for (Vertex vertex : vertices) {
transitions.addAll(vertex.getOutgoingTransitions());
}
return transitions;
}
protected boolean shouldIncludeConnection(Edge connection, Collection<View> children) {
// Connections should only be included, when the source vertex is
// contained in the region this edit policy belongs to
EObject element = (EObject) connection.getElement();
if (element instanceof Transition) {
Vertex source = ((Transition) element).getSource();
if (!getSemanticHost().getVertices().contains(source)) {
return false;
}
}
return super.shouldIncludeConnection(connection, children);
}
@Override
protected EObject getSourceElement(EObject relationship) {
Assert.isTrue(relationship instanceof Transition);
Transition transition = (Transition) relationship;
return transition.getSource();
}
@Override
protected EObject getTargetElement(EObject relationship) {
Assert.isTrue(relationship instanceof Transition);
Transition transition = (Transition) relationship;
return transition.getTarget();
}
@Override
public Region getSemanticHost() {
return (Region) super.getSemanticHost();
}
@Override
public IGraphicalEditPart getHost() {
return (IGraphicalEditPart) super.getHost();
}
@Override
protected String getFactoryHint(IAdaptable elementAdapter) {
EObject modelElement = (EObject) elementAdapter.getAdapter(EObject.class);
String factoryHint = SemanticHintUtil.getSemanticHint(modelElement);
return factoryHint;
}
protected boolean shouldDeleteView(View view) {
// #Bug 349119
if (ViewType.NOTE.equals(view.getType()) || ViewType.NOTEATTACHMENT.equals(view.getType())
|| ViewType.TEXT.equals(view.getType())) {
return false;
}
return true;
}
@Override
protected String getDefaultFactoryHint() {
return SemanticHints.TRANSITION;
}
@Override
protected void refreshSemantic() {
List<IAdaptable> createdViews = super.refreshSemanticChildren();
List<IAdaptable> createdConnectionViews = refreshSemanticConnections();
List<IAdaptable> allViews = new ArrayList<IAdaptable>(createdConnectionViews.size() + createdViews.size());
allViews.addAll(createdViews);
allViews.addAll(createdConnectionViews);
makeViewsImmutable(allViews);
persistTransientViews(createdViews);
}
protected void persistTransientViews(List<IAdaptable> createdViews) {
for (IAdaptable iAdaptable : createdViews) {
((View) iAdaptable.getAdapter(View.class)).persist();
}
// View#persist is not overridden for Edges in GMF Notation (Bug)
getHost().getNotationView().getDiagram().persistEdges();
}
}