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/*******************************************************************************
* Copyright (c) 2011, 2012 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.papryus;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.common.util.TreeIterator;
import org.eclipse.emf.compare.diagram.ui.mergeviewer.GMFContentMergeTabFolder;
import org.eclipse.emf.compare.diagram.ui.mergeviewer.GMFContentMergeViewerTab;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.papyrus.infra.core.sashwindows.di.PageRef;
import org.eclipse.swt.widgets.Composite;
/**
* The tab that contains the Papryus viewer.
*
* @author Mickael Barbero <a href="mailto:mickael.barbero@obeo.fr">mickael.barbero@obeo.fr</a>
*/
public class PapyrusContentMergeViewerTab extends GMFContentMergeViewerTab {
/**
* Constructor.
*
* @param parent
* The parent composite.
* @param side
* The side.
* @param parentFolder
* The parent folder.
*/
public PapyrusContentMergeViewerTab(Composite parent, int side, GMFContentMergeTabFolder parentFolder) {
super(parent, side, parentFolder);
}
@Override
public void setReflectiveInput(Object object) {
if (object instanceof EObject) {
if (object instanceof Diagram) {
displayDiagram((Diagram)object);
}
} else {
// may be invoked with a resourceSet, a list of resources, or a single resource
assert object instanceof Resource || object instanceof List;
if (object instanceof List) {
for (Object item : (List<?>)object) {
assert item instanceof Resource;
}
}
if (object instanceof Resource) {
displayDiagram(getDiagramFromResource((Resource)object));
} else if (object instanceof List && !((List<?>)object).isEmpty()) {
final Resource resource = (Resource)((List<?>)object).get(0);
displayDiagram(getDiagramFromResource(resource));
}
}
// maintain synchronization with tree
contentMergeTabFolderParent.getTreePart().setReflectiveInput(object);
contentMergeTabFolderParent.getPropertyPart().setReflectiveInput(object);
redraw();
}
/**
* Get the list of diagrams from the given resource.
*
* @param resource
* The resource.
* @return The list of diagrams.
*/
public List<Diagram> getDiagrams(Resource resource) {
final List<Diagram> ret = new ArrayList<Diagram>();
final TreeIterator<EObject> eAllContents = resource.getAllContents();
while (eAllContents.hasNext()) {
final EObject element = eAllContents.next();
if (element instanceof PageRef) {
final EObject emfPageIdentifier = ((PageRef)element).getEmfPageIdentifier();
if (emfPageIdentifier instanceof Diagram) {
final Diagram d = (Diagram)emfPageIdentifier;
ret.add(d);
eAllContents.prune();
}
}
}
return ret;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.diagram.ui.mergeviewer.GMFContentMergeViewerTab#getDiagramFromResource(org.eclipse.emf.ecore.resource.Resource)
*/
@Override
public Diagram getDiagramFromResource(final Resource resource) {
final List<Diagram> diagrams = getDiagrams(resource);
return diagrams.get(0);
}
}
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