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/*****************************************************************************
* Copyright (c) 2008 CEA LIST.
*
*
* 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:
* Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.diagram.clazz.custom.command;
import java.util.ArrayList;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
import org.eclipse.gmf.runtime.diagram.core.preferences.PreferencesHint;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateConnectionViewRequest.ConnectionViewDescriptor;
import org.eclipse.gmf.runtime.emf.type.core.IHintedType;
import org.eclipse.gmf.runtime.emf.type.core.commands.SetValueCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.SetRequest;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.papyrus.diagram.clazz.custom.helper.MultiAssociationHelper;
import org.eclipse.papyrus.diagram.clazz.edit.parts.AssociationBranchEditPart;
import org.eclipse.papyrus.diagram.clazz.providers.UMLElementTypes;
import org.eclipse.papyrus.diagram.common.commands.SemanticAdapter;
import org.eclipse.papyrus.service.edit.service.ElementEditServiceUtils;
import org.eclipse.papyrus.service.edit.service.IElementEditService;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.uml2.uml.Association;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.Property;
import org.eclipse.uml2.uml.UMLPackage;
/**
* The Class AssociationBranchDeletion is used delete a branch
*/
public class AssociationBranchDeletion implements IObjectActionDelegate {
/** The selected element. */
private AssociationBranchEditPart selectedElement;
/**
* Instantiates a new association branch deletion.
*/
public AssociationBranchDeletion() {
// TODO Auto-generated constructor stub
}
/**
* {@inheritDoc}
*/
public void run(IAction action) {
CompoundCommand command = new CompoundCommand();
Association association = null;
TransactionalEditingDomain domain = selectedElement.getEditingDomain();
GraphicalEditPart associationNodeEditPart = null;
// 1. Semantic deletion
GraphicalEditPart branchSource = (GraphicalEditPart)selectedElement.getSource();
// target is the association end of the association branch
association = (Association)branchSource.resolveSemanticElement();
associationNodeEditPart = branchSource;
Property associationEndToRemove=MultiAssociationHelper.getPropertyToListen((Edge)selectedElement.getModel(), association);
IElementEditService provider = ElementEditServiceUtils.getCommandProvider(associationEndToRemove);
if(provider != null) {
DestroyElementRequest destroyRequest= new DestroyElementRequest(associationEndToRemove,false);
// Retrieve delete command from the Element Edit service
ICommand deleteCommand = provider.getEditCommand(destroyRequest);
if(deleteCommand != null) {
command.add(new ICommandProxy(deleteCommand));
}
}
// 2. graphical deletion of the branch
View associationBranchView = selectedElement.getNotationView();
command.add(new ICommandProxy(new DeleteCommand(domain, associationBranchView)));
// 3. test if it exists more than 2 branches
int branchNumber = associationNodeEditPart.getSourceConnections().size() + associationNodeEditPart.getTargetConnections().size();
if(branchNumber == 3) {
// 4. Graphical deletion of the node
command.add(new ICommandProxy(new DeleteCommand(domain, associationNodeEditPart.getNotationView())));
// 5. Graphical creation of the binary dependency
// 5.1 calculus of the future source and target of the binary
// dependency
ArrayList<EditPart> sourceList = new ArrayList<EditPart>();
ArrayList<EditPart> targetList = new ArrayList<EditPart>();
sourceList.addAll(associationNodeEditPart.getSourceConnections());
targetList.addAll(associationNodeEditPart.getTargetConnections());
sourceList.remove(selectedElement);
targetList.remove(selectedElement);
PreferencesHint preferencesHint = ((GraphicalEditPart)((ConnectionEditPart)(sourceList.get(0))).getTarget()).getDiagramPreferencesHint();
ConnectionViewDescriptor viewDescriptor = new ConnectionViewDescriptor(UMLElementTypes.Association_4001, ((IHintedType)UMLElementTypes.Association_4001).getSemanticHint(), preferencesHint);
CustomDeferredCreateConnectionViewCommand binaryCommand = new CustomDeferredCreateConnectionViewCommand(domain, ((IHintedType)UMLElementTypes.Association_4001).getSemanticHint(), new SemanticAdapter(null, (((ConnectionEditPart)(sourceList.get(0))).getTarget()).getModel()), new SemanticAdapter(null, (((ConnectionEditPart)(sourceList.get(1))).getTarget()).getModel()), sourceList.get(0).getViewer(), preferencesHint, viewDescriptor, null);
binaryCommand.setElement(association);
command.add(new ICommandProxy(binaryCommand));
}
// 6.command Execution
selectedElement.getDiagramEditDomain().getDiagramCommandStack().execute(command);
}
/**
*
* {@inheritedDoc}
*/
public void selectionChanged(IAction action, ISelection selection) {
if(selection instanceof IStructuredSelection) {
Object selectedobject = ((IStructuredSelection)selection).getFirstElement();
if(selectedobject instanceof AssociationBranchEditPart) {
selectedElement = (AssociationBranchEditPart)selectedobject;
}
}
}
/**
*
* {@inheritedDoc}
*/
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
// TODO Auto-generated method stub
}
}
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