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/*******************************************************************************
* Copyright (c) 2015, 2016 Obeo.
* 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
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.business.internal.migration;
import java.util.Collection;
import java.util.LinkedHashSet;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.DrawerStyle;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.NotationPackage;
import org.eclipse.gmf.runtime.notation.Style;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.sirius.business.api.migration.AbstractRepresentationsFileMigrationParticipant;
import org.eclipse.sirius.business.api.query.DViewQuery;
import org.eclipse.sirius.diagram.DDiagram;
import org.eclipse.sirius.diagram.DDiagramElementContainer;
import org.eclipse.sirius.diagram.business.api.refresh.DiagramCreationUtil;
import org.eclipse.sirius.diagram.business.internal.query.DDiagramElementContainerExperimentalQuery;
import org.eclipse.sirius.diagram.ui.internal.edit.parts.DNodeContainerViewNodeContainerCompartment2EditPart;
import org.eclipse.sirius.diagram.ui.internal.edit.parts.DNodeListViewNodeListCompartmentEditPart;
import org.eclipse.sirius.diagram.ui.part.SiriusVisualIDRegistry;
import org.eclipse.sirius.viewpoint.DAnalysis;
import org.eclipse.sirius.viewpoint.DView;
import org.osgi.framework.Version;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.common.collect.Iterators;
import com.google.common.collect.Lists;
/**
* Add a GMF {@link DrawerStyle} instance on existing {@link View} with an
* element that is an instance of {@link DDiagramElementContainer} and is a
* specified as a Region/compartiment.
*
* @author <a href="mailto:maxime.porhel@obeo.fr">Maxime Porhel</a>
*
*/
public class CollapseSupportOnRegionMigrationParticipant extends AbstractRepresentationsFileMigrationParticipant {
private static final Version MIGRATION_VERSION = new Version("10.0.0.201505131200"); //$NON-NLS-1$
@Override
public Version getMigrationVersion() {
return MIGRATION_VERSION;
}
@Override
protected void postLoad(DAnalysis dAnalysis, Version loadedVersion) {
if (loadedVersion.compareTo(MIGRATION_VERSION) < 0) {
EClass drawerStyleClass = NotationPackage.eINSTANCE.getDrawerStyle();
// Step 1: get all view to update
final Collection<View> allViewsToUpdate = new LinkedHashSet<>();
for (DView dView : dAnalysis.getOwnedViews()) {
for (DDiagram dDiagram : Iterables.filter(new DViewQuery(dView).getLoadedRepresentations(), DDiagram.class)) {
DiagramCreationUtil diagramCreationUtil = new DiagramCreationUtil(dDiagram);
if (diagramCreationUtil.findAssociatedGMFDiagram()) {
Diagram gmfDiagram = diagramCreationUtil.getAssociatedGMFDiagram();
for (Node node : Lists.newArrayList(Iterators.filter(Iterators.filter(gmfDiagram.eAllContents(), Node.class), new IsRegionCompartmentPredicate()))) {
Style style = node.getStyle(drawerStyleClass);
if (style == null) {
allViewsToUpdate.add(node);
}
}
}
}
}
// Step 2: update views
for (View viewToUpdate : allViewsToUpdate) {
DrawerStyle style = (DrawerStyle) drawerStyleClass.getEPackage().getEFactoryInstance().create(drawerStyleClass);
style.setCollapsed(false);
viewToUpdate.getStyles().add(style);
}
}
}
/**
* A predicate that checks if the element represents the compartiment node
* of a region.
*
* @author mporhel
*
*/
private class IsRegionCompartmentPredicate implements Predicate<Node> {
@Override
public boolean apply(Node node) {
int id = SiriusVisualIDRegistry.getVisualID(node.getType());
if (id == DNodeContainerViewNodeContainerCompartment2EditPart.VISUAL_ID || id == DNodeListViewNodeListCompartmentEditPart.VISUAL_ID) {
EObject element = node.getElement();
return element instanceof DDiagramElementContainer && new DDiagramElementContainerExperimentalQuery((DDiagramElementContainer) element).isRegion();
}
return false;
}
}
}
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