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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.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.SetRequest;
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.edit.parts.DependencyBranchEditPart;
import org.eclipse.papyrus.diagram.clazz.providers.UMLElementTypes;
import org.eclipse.papyrus.diagram.common.commands.SemanticAdapter;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.uml2.uml.Dependency;
import org.eclipse.uml2.uml.NamedElement;
import org.eclipse.uml2.uml.UMLPackage;
/**
* The Class DependencyBranchDeletion used to delete a branch from n-ary dependency
*/
public class DependencyBranchDeletion implements IObjectActionDelegate {
/** The selected element. */
private DependencyBranchEditPart selectedElement;
/**
* Instantiates a new dependency branch deletion.
*/
public DependencyBranchDeletion() {
}
/**
* {@inheritedDoc}
*/
public void run(IAction action) {
CompoundCommand command = new CompoundCommand();
Dependency dependency = null;
TransactionalEditingDomain domain = selectedElement.getEditingDomain();
GraphicalEditPart dependencyNodeEditPart = null;
// 1. Semanctic deletion of the client or supplier
GraphicalEditPart branchSource = (GraphicalEditPart)selectedElement.getSource();
GraphicalEditPart branchtarget = (GraphicalEditPart)selectedElement.getTarget();
EStructuralFeature feature = null;
ArrayList<NamedElement> newValue = new ArrayList<NamedElement>();
if(branchSource.resolveSemanticElement() instanceof Dependency) {
// target is the supplier of the dependency
dependency = (Dependency)branchSource.resolveSemanticElement();
dependencyNodeEditPart = branchSource;
newValue.addAll(dependency.getSuppliers());
newValue.remove(branchtarget.resolveSemanticElement());
feature = UMLPackage.eINSTANCE.getDependency_Supplier();
} else {
// source is the client of the dependency to remove
feature = UMLPackage.eINSTANCE.getDependency_Client();
dependency = (Dependency)branchtarget.resolveSemanticElement();
dependencyNodeEditPart = branchtarget;
newValue.addAll(dependency.getClients());
newValue.remove(branchSource.resolveSemanticElement());
}
SetRequest setRequest = new SetRequest(dependency, feature, newValue);
SetValueCommand setValueCommand = new SetValueCommand(setRequest);
command.add(new ICommandProxy(setValueCommand));
// 2. graphical deletion of the branch
View branchDependencyView = selectedElement.getNotationView();
command.add(new ICommandProxy(new DeleteCommand(domain, branchDependencyView)));
// 3. test if it exists more than 2 branches
int branchNumber = dependencyNodeEditPart.getSourceConnections().size() + dependencyNodeEditPart.getTargetConnections().size();
if(branchNumber == 3) {
// 4. Graphical deletion of the node
command.add(new ICommandProxy(new DeleteCommand(domain, dependencyNodeEditPart.getNotationView())));
// 5. Graphical creation of the binary dependency
// 5.1 calculus of the furture source and taget of the binary
// dependency
ArrayList<EditPart> sourceList = new ArrayList<EditPart>();
ArrayList<EditPart> targetList = new ArrayList<EditPart>();
sourceList.addAll(dependencyNodeEditPart.getSourceConnections());
targetList.addAll(dependencyNodeEditPart.getTargetConnections());
sourceList.remove(selectedElement);
targetList.remove(selectedElement);
PreferencesHint preferencesHint = ((GraphicalEditPart)((ConnectionEditPart)(sourceList.get(0))).getTarget()).getDiagramPreferencesHint();
ConnectionViewDescriptor viewDescriptor = new ConnectionViewDescriptor(UMLElementTypes.Dependency_4008, ((IHintedType)UMLElementTypes.Dependency_4008).getSemanticHint(), preferencesHint);
CustomDeferredCreateConnectionViewCommand binaryCommand = new CustomDeferredCreateConnectionViewCommand(domain, ((IHintedType)UMLElementTypes.Dependency_4008).getSemanticHint(), new SemanticAdapter(null, (((ConnectionEditPart)(targetList.get(0))).getSource()).getModel()), new SemanticAdapter(null, (((ConnectionEditPart)(sourceList.get(0))).getTarget()).getModel()), sourceList.get(0).getViewer(), preferencesHint, viewDescriptor, null);
binaryCommand.setElement(dependency);
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 DependencyBranchEditPart) {
selectedElement = (DependencyBranchEditPart)selectedobject;
}
}
}
/**
* {@inheritedDoc}
*/
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
// TODO Auto-generated method stub
}
}
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