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/*****************************************************************************
* Copyright (c) 2015 CEA LIST 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.dnd.strategy.classifier;
import java.util.Map;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.requests.DropObjectsRequest;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.gmfdiag.dnd.strategy.TransactionalDropStrategy;
import org.eclipse.papyrus.uml.diagram.composite.custom.helper.TypeHelper;
import org.eclipse.papyrus.uml.diagram.composite.edit.parts.CompositeStructureDiagramEditPart;
import org.eclipse.papyrus.uml.diagram.dnd.Activator;
import org.eclipse.swt.graphics.Image;
import org.eclipse.uml2.uml.Association;
import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.Collaboration;
import org.eclipse.uml2.uml.Property;
import org.eclipse.uml2.uml.StructuredClassifier;
/**
*
* Class provide ability of drop a {@link Classifier} on a {@link Classifier} as a {@link Property}
*
* In a parent {@link Classifier} will be created a {@link Property} and shown in it
* when user drop a child {@link Classifier} on the parent {@link Classifier}.
* The child {@link Classifier} not will be shown in the parent container in this case.
*/
public class ClassifierAsPropertyToStructuredCompartmentDropStrategy extends TransactionalDropStrategy {
protected Point getLocation(DropObjectsRequest request, GraphicalEditPart targetEP) {
Point location = request.getLocation().getCopy();
targetEP.getContentPane().translateToRelative(location);
targetEP.getContentPane().translateFromParent(location);
location.translate(targetEP.getContentPane().getClientArea().getLocation().getNegated());
return location;
}
protected boolean understandRequest(Request request) {
if (!(request instanceof DropObjectsRequest)) {
return false;
}
DropObjectsRequest dropRequest = (DropObjectsRequest) request;
if (dropRequest.getLocation() == null) {
return false;
}
return true;
}
protected boolean isStructuredClassifierEP(EditPart ep) {
if (false == ep instanceof GraphicalEditPart) {
return false;
}
EObject targetSemantic = getTargetSemanticElement(ep);
if (false == targetSemantic instanceof StructuredClassifier) {
return false;
}
// Bug 475569: This strategy is specific to the composite diagram (Relying on TypeHelper and Composite-specific VisualIDs).
// Return false if the current diagram is not a Composite. This behavior might be improved by making this implementation more generic (ViewService?)
View notationView = ((IGraphicalEditPart) ep).getNotationView();
if (notationView == null || notationView.getDiagram() == null) {
return false;
}
return CompositeStructureDiagramEditPart.MODEL_ID.equals(notationView.getDiagram().getType());
}
@Override
public Command doGetCommand(Request request, EditPart targetEditPart) {
if (understandRequest(request) && isStructuredClassifierEP(targetEditPart)) {
GraphicalEditPart gtEditPart = (GraphicalEditPart) targetEditPart;
TypeHelper helper = new TypeHelper((TransactionalEditingDomain) getEditingDomain(targetEditPart));
Point location = getLocation((DropObjectsRequest) request, gtEditPart);
CompoundCommand cc = new CompoundCommand();
for (EObject dropElement : getSourceEObjects(request)) {
if (dropElement instanceof Collaboration) {
continue;
}
if (dropElement instanceof Classifier && (false == dropElement instanceof Association)) {
Classifier classifier = (Classifier) dropElement;
cc.add(helper.dropTypeAsTypedProperty(gtEditPart, classifier, location));
}
}
return cc.canExecute() ? cc : null;
}
return null;
}
@Override
public String getLabel() {
return "Drop type as typed property"; //$NON-NLS-1$
}
@Override
public String getID() {
return Activator.PLUGIN_ID + ".ClassifierToStructureCompAsPropertyDrop"; //$NON-NLS-1$
}
@Override
public String getDescription() {
return "Drops a classifier into the structure compartment of a structured classifier as a property."; //$NON-NLS-1$
}
public String getCategoryID() {
return "org.eclipse.papyrus.dnd.ClassifierToStructureCompAsPropertyDrop"; //$NON-NLS-1$
}
public String getCategoryLabel() {
return "Drop a classifier into the structure compartment of a structured classifier as property"; //$NON-NLS-1$
}
@Override
public Image getImage() {
return null;
}
@Override
public int getPriority() {
return 0;
}
public void setOptions(Map<String, Object> options) {
// Nothing
}
}
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