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/*******************************************************************************
* Copyright (c) 2008 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.papyrus.diagram.clazz.custom.edit.commands;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
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.commands.Command;
import org.eclipse.gef.requests.CreateRequest;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.common.core.command.CompositeCommand;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
import org.eclipse.gmf.runtime.diagram.ui.commands.CommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.commands.CreateCommand;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.commands.SetViewMutabilityCommand;
import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.figures.ICanonicalShapeCompartmentLayout;
import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramUIMessages;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateConnectionViewRequest;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewRequest;
import org.eclipse.gmf.runtime.diagram.ui.requests.CreateViewRequest.ViewDescriptor;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.diagram.clazz.part.UMLVisualIDRegistry;
import org.eclipse.papyrus.diagram.common.util.CommandUtil;
import org.eclipse.ui.PlatformUI;
import org.eclipse.uml2.uml.AssociationClass;
import org.eclipse.uml2.uml.Package;
import org.eclipse.uml2.uml.PackageableElement;
/**
* Initialize diagram elements from a semantic model.
*
* @author <a href="mailto:jerome.benois@obeo.fr">Jerome Benois</a>
*/
public class InitializeDiagramCommand extends AbstractTransactionalCommand {
// protected List<?> adapters;
protected Diagram diagram;
protected DiagramEditPart host;
public InitializeDiagramCommand(DiagramEditPart diagramEditPart) {
super(diagramEditPart.getEditingDomain(), "Initialize Diagram From Semantic Model", null);
this.host = diagramEditPart;
this.diagram = host.getDiagramView();
}
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
// To load visualIDRegistry
host().refresh();
List createdViews = new LinkedList();
createdViews.addAll(populateSemanticNodes());
if(createdViews.size() > 0) {
RestoreRelatedLinksCommand restoreRelatedLinksCommand = new RestoreRelatedLinksCommand(((DiagramEditPart)getHost()), createdViews);
CommandUtil.executeCommand(new ICommandProxy(restoreRelatedLinksCommand), host());
// DeferredLayoutCommand layoutCmd = new
// DeferredLayoutCommand(host().getEditingDomain(), createdViews, host());
// CommandUtils.executeCommand(new ICommandProxy(layoutCmd), host());
}
// Make views immutable
List viewAdapters = prepareAdapterList(createdViews);
final Command immutable = SetViewMutabilityCommand.makeImmutable(viewAdapters);
PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
public void run() {
immutable.execute();
}
});
return null;
}
/**
* Forwards the supplied request to its source if the target is <tt>null</tt>; otherwise it is
* forwarded to the target. Forwards the supplied request to the editpart's <code>host</code>.
*
* @param request
* a <code>CreareConnecgtorViewRequest</code>
* @return Command to create the views in the request
*/
protected Command getCreateViewCommand(CreateRequest request) {
if(request instanceof CreateConnectionViewRequest) {
CreateConnectionViewRequest ccr = (CreateConnectionViewRequest)request;
EditPart ep = ccr.getTargetEditPart() == null ? ccr.getSourceEditPart() : ccr.getTargetEditPart();
return ep.getCommand(request);
}
CompositeCommand cc = new CompositeCommand(DiagramUIMessages.AddCommand_Label);
Command cmd = host().getCommand(request);
if(cmd == null) {
assert request instanceof CreateViewRequest;
Iterator descriptors = ((CreateViewRequest)request).getViewDescriptors().iterator();
while(descriptors.hasNext()) {
ViewDescriptor descriptor = (ViewDescriptor)descriptors.next();
ICommand createCommand = getCreateViewCommand(descriptor);
cc.compose(createCommand);
}
} else {
cc.compose(new CommandProxy(cmd));
Iterator descriptors = ((CreateViewRequest)request).getViewDescriptors().iterator();
while(descriptors.hasNext()) {
ViewDescriptor descriptor = (ViewDescriptor)descriptors.next();
cc.compose(new CommandProxy(SetViewMutabilityCommand.makeMutable(descriptor)));
}
}
return new ICommandProxy(cc.reduce());
}
/**
* @param descriptor
* @return ICommand to create a view given a descriptor
*/
protected ICommand getCreateViewCommand(ViewDescriptor descriptor) {
TransactionalEditingDomain editingDomain = ((IGraphicalEditPart)getHost()).getEditingDomain();
CreateCommand createCommand = new CreateCommand(editingDomain, descriptor, (View)getHost().getModel());
CompositeCommand cmd = new CompositeCommand(DiagramUIMessages.AddCommand_Label);
cmd.compose(createCommand);
cmd.compose(new CommandProxy(SetViewMutabilityCommand.makeMutable(descriptor)));
return cmd;
}
/**
* Return a create view request. The request's location is set to {@link ICanonicalShapeCompartmentLayout#UNDEFINED}.
*
* @param descriptors
* a {@link CreateViewRequest.ViewDescriptor} list.
* @return a create request
*/
protected CreateViewRequest getCreateViewRequest(List descriptors) {
CreateViewRequest cvr = new CreateViewRequest(descriptors);
Point loc = ICanonicalShapeCompartmentLayout.UNDEFINED.getLocation();
cvr.setLocation(loc);
return cvr;
}
/**
* @return the current diagram
*/
private Diagram getDiagram() {
return ((View)getHost().getModel()).getDiagram();
}
/**
* @return <code>(IGraphicalEditPart)host()</code>.
*/
protected final IGraphicalEditPart getHost() {
return host;
}
/**
* Convenience method to create a view descriptor. Will call {@link #getViewDescriptor(IAdaptable, Class, String, int)}
*
* @param element
* semantic element.
* @return view descriptor
*/
protected ViewDescriptor getViewDescriptor(EObject element) {
//
// create the view descritor
// String factoryHint = getDefaultFactoryHint();
IAdaptable elementAdapter = new EObjectAdapter(element);// CanonicalElementAdapter(element,
// factoryHint);
ViewDescriptor descriptor = getViewDescriptor(elementAdapter, Node.class, null, ViewUtil.APPEND);
return descriptor;
}
/**
* Return a view descriptor.
*
* @param elementAdapter
* semantic element
* @param viewKind
* type of view to create
* @param hint
* factory hint
* @param index
* index
* @return a create <i>non-persisted</i> view descriptor
*/
protected ViewDescriptor getViewDescriptor(IAdaptable elementAdapter, Class viewKind, String hint, int index) {
return new ViewDescriptor(elementAdapter, viewKind, hint, index, false, host().getDiagramPreferencesHint());
}
/**
* @return <code>(IGraphicalEditPart)host()</code>.
*/
protected final IGraphicalEditPart host() {
return host;
}
protected List<ViewDescriptor> populateSemanticNodes() {
List<ViewDescriptor> descriptors = new ArrayList<ViewDescriptor>();
View viewObject = (View)getHost().getModel();
EObject container = getDiagram().getElement();
if(container instanceof Package) {
Package rootPackage = (Package)container;
Iterator<PackageableElement> it = rootPackage.getPackagedElements().iterator();
while(it.hasNext()) {
PackageableElement element = it.next();
if(!(element instanceof AssociationClass)) {
int visualID = UMLVisualIDRegistry.getNodeVisualID(viewObject, element);
if(visualID != -1) {
ViewDescriptor descriptor = getViewDescriptor(element);
descriptors.add(descriptor);
}
}
}
}
if(!descriptors.isEmpty()) {
// create the request
CreateViewRequest request = getCreateViewRequest(descriptors);
// get the command and execute it.
Command cmd = getCreateViewCommand(request);
if(cmd != null && cmd.canExecute()) {
SetViewMutabilityCommand.makeMutable(new EObjectAdapter(host().getNotationView())).execute();
CommandUtil.executeCommand(cmd, host());
return (List)request.getNewObject();
}
}
return Collections.EMPTY_LIST;
}
private List prepareAdapterList(List createdViews) {
List viewAdapters = new ArrayList();
viewAdapters.add(host());
ListIterator li = createdViews.listIterator();
while(li.hasNext()) {
Object obj = li.next();
if(obj != null) {
if(!(obj instanceof IAdaptable) && obj instanceof EObject) {
viewAdapters.add(new EObjectAdapter((EObject)obj));
} else {
viewAdapters.add(obj);
}
}
}
return viewAdapters;
}
}
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