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/*****************************************************************************
* Copyright (c) 2012 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.component.custom.handler;
import java.util.ArrayList;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.emf.edit.command.DeleteCommand;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GraphicalEditPart;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.Edge;
import org.eclipse.gmf.runtime.notation.NotationPackage;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.papyrus.infra.emf.gmf.command.GMFtoEMFCommandWrapper;
import org.eclipse.papyrus.infra.gmfdiag.common.utils.ServiceUtilsForEditPart;
import org.eclipse.papyrus.uml.diagram.common.commands.SemanticAdapter;
import org.eclipse.papyrus.uml.diagram.component.custom.command.DeferredSetViewCommand;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.ISelectionService;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
/**
* This class is an abstract class in charge to transform a editpart into another editpart
*
*/
public abstract class ChangeShapeHandler extends AbstractHandler {
protected TransactionalEditingDomain transactionalEditingDomain = null;
protected org.eclipse.uml2.uml.Element selectedElement = null;
protected String newType;
/**
*
* Constructor.
*
*/
public ChangeShapeHandler() {
super();
}
protected abstract AbstractTransactionalCommand getChangeShapeCommand(final GraphicalEditPart editPart);
/**
*
* @return null or the selected editPart
*/
protected GraphicalEditPart getSelectedGraphicalEditpart() {
IWorkbenchWindow activeWorkbenchWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (activeWorkbenchWindow != null) {
ISelectionService selectionService = activeWorkbenchWindow.getSelectionService();
ISelection selection = selectionService.getSelection();
if (selection instanceof IStructuredSelection) {
Object selectedobject = ((IStructuredSelection) selection).getFirstElement();
if (selectedobject instanceof GraphicalEditPart) {
return (GraphicalEditPart) selectedobject;
}
}
}
return null;
}
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
final GraphicalEditPart editPart = getSelectedGraphicalEditpart();
ServiceUtilsForEditPart util = ServiceUtilsForEditPart.getInstance();
try {
transactionalEditingDomain = util.getTransactionalEditingDomain(editPart);
} catch (Exception e) {
System.err.println("impossible to get the Transactional Editing Domain " + e);
}
try {
editPart.getEditingDomain().runExclusive(new Runnable() {
@Override
public void run() {
Display.getCurrent().asyncExec(new Runnable() {
@Override
public void run() {
// get Links
View view = (View) (editPart.getModel());
TransactionalEditingDomain domain = editPart.getEditingDomain();
@SuppressWarnings("unchecked")
ArrayList<Edge> targetEdge = new ArrayList<Edge>(view.getTargetEdges());
@SuppressWarnings("unchecked")
ArrayList<Edge> sourceEdge = new ArrayList<Edge>(view.getSourceEdges());
// create new Shape
AbstractTransactionalCommand createCommand = getChangeShapeCommand(editPart);
org.eclipse.emf.common.command.Command deleteCommand = DeleteCommand.create(editPart.getEditingDomain(), view);
org.eclipse.emf.common.command.CompoundCommand compoundCommand = new org.eclipse.emf.common.command.CompoundCommand("change Shape");
compoundCommand.append(new GMFtoEMFCommandWrapper(createCommand));
// remove old Shape
compoundCommand.append(deleteCommand);
// Add links
DeferredSetViewCommand deferredSetCommand = new DeferredSetViewCommand(domain, (SemanticAdapter) createCommand.getCommandResult().getReturnValue(), NotationPackage.eINSTANCE.getView_SourceEdges(), sourceEdge);
compoundCommand.append(new GMFtoEMFCommandWrapper(deferredSetCommand));
deferredSetCommand = new DeferredSetViewCommand(domain, (SemanticAdapter) createCommand.getCommandResult().getReturnValue(), NotationPackage.eINSTANCE.getView_TargetEdges(), targetEdge);
compoundCommand.append(new GMFtoEMFCommandWrapper(deferredSetCommand));
editPart.getEditingDomain().getCommandStack().execute(compoundCommand);
}
});
}
});
} catch (InterruptedException e) {
e.printStackTrace();
}
return null;
}
}
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