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/*****************************************************************************
* Copyright (c) 2011 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.sysml.diagram.blockdefinition.edit.policy;
import java.util.Iterator;
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.ChangeBoundsRequest;
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.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.GroupEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.LabelEditPart;
import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramUIMessages;
import org.eclipse.gmf.runtime.diagram.ui.requests.EditCommandRequestWrapper;
import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.gmf.diagram.common.edit.policy.DefaultCreationEditPolicy;
/**
* this editpolicy allow graphical and semantic reparent for contained elements
*
*/
public class PackageCreationEditPolicy extends DefaultCreationEditPolicy {
/**
* return a command to reparent both the semantic and view elements.
* @param request the request
* @return command
*/
protected Command getReparentCommand(ChangeBoundsRequest request) {
Iterator<EditPart> editParts = request.getEditParts().iterator();
View container = (View)getHost().getAdapter(View.class);
EObject context = container == null ? null : ViewUtil.resolveSemanticElement(container);
CompositeCommand cc = new CompositeCommand(DiagramUIMessages.AddCommand_Label);
while ( editParts.hasNext() ) {
EditPart ep = (EditPart)editParts.next();
if ( ep instanceof LabelEditPart ) {
continue;
}
if (ep instanceof GroupEditPart) {
cc.compose(getReparentGroupCommand((GroupEditPart) ep));
}
View view = (View)ep.getAdapter(View.class);
if ( view == null ) {
continue;
}
EObject semantic = ViewUtil.resolveSemanticElement(view);
if ( semantic == null ) {
cc.compose(getReparentViewCommand((IGraphicalEditPart)ep));
}
else if ( context != null && shouldReparent(semantic, context)) {
cc.compose(getReparentCommand((IGraphicalEditPart)ep));
}
}
return cc.isEmpty() ? null : new ICommandProxy(cc.reduce());
}
/**
*change the order of the move, first graphical, then semantic to launch behavior about editservice
* {@inheritDoc}
*/
@Override
protected ICommand getReparentCommand( IGraphicalEditPart gep ) {
CompositeCommand cc = new CompositeCommand(DiagramUIMessages.AddCommand_Label);
View container = (View)getHost().getModel();
EObject context = ViewUtil.resolveSemanticElement(container);
View view = (View)gep.getModel();
EObject element = ViewUtil.resolveSemanticElement(view);
TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost())
.getEditingDomain();
//
// notation
cc.compose(getReparentViewCommand(gep));
//
// semantic
if ( element != null ) {
Command moveSemanticCmd =
getHost().getCommand(
new EditCommandRequestWrapper(
new MoveRequest(editingDomain, context, element)));
if (moveSemanticCmd == null) {
return org.eclipse.gmf.runtime.common.core.command.UnexecutableCommand.INSTANCE;
}
cc.compose ( new CommandProxy(moveSemanticCmd) );
}
return cc;
}
}
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