//package org.eclipse.gmf.example.lesscode.diagram.edit.policies;
//
//import java.util.Iterator;
//
//import org.eclipse.emf.ecore.EAnnotation;
//import org.eclipse.gef.commands.Command;
//import org.eclipse.gmf.example.lesscode.diagram.edit.commands.ElementBasedLinkCreateCommand;
//import org.eclipse.gmf.example.lesscode.diagram.edit.commands.ElementBasedLinkReorientCommand;
//import org.eclipse.gmf.example.lesscode.diagram.edit.commands.SubjectReferenceBasedLinkTargetCreateCommand;
//import org.eclipse.gmf.example.lesscode.diagram.edit.commands.SubjectReferenceBasedLinkTargetReorientCommand;
//import org.eclipse.gmf.example.lesscode.diagram.edit.parts.ElementBasedLinkEditPart;
//import org.eclipse.gmf.example.lesscode.diagram.edit.parts.Subject2EditPart;
//import org.eclipse.gmf.example.lesscode.diagram.edit.parts.SubjectInSubject2EditPart;
//import org.eclipse.gmf.example.lesscode.diagram.edit.parts.SubjectReferenceBasedLinkTargetEditPart;
//import org.eclipse.gmf.example.lesscode.diagram.part.LesscodeVisualIDRegistry;
//import org.eclipse.gmf.example.lesscode.diagram.providers.LesscodeElementTypes;
//import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand;
//import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand;
//import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
//import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyElementCommand;
//import org.eclipse.gmf.runtime.emf.type.core.commands.DestroyReferenceCommand;
//import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
//import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
//import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyReferenceRequest;
//import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest;
//import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
//import org.eclipse.gmf.runtime.notation.Edge;
//import org.eclipse.gmf.runtime.notation.Node;
//import org.eclipse.gmf.runtime.notation.View;
//
///**
// * @generated
// */
//public class Subject2ItemSemanticEditPolicy extends LesscodeBaseItemSemanticEditPolicy {
//
// /**
// * @generated
// */
// public Subject2ItemSemanticEditPolicy() {
// super(LesscodeElementTypes.Subject_3001);
// }
//
// /**
// * @generated
// */
// protected Command getDestroyElementCommand(DestroyElementRequest req) {
// View view = (View) getHost().getModel();
// CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(getEditingDomain(), null);
// cmd.setTransactionNestingEnabled(false);
// for (Iterator<?> it = view.getTargetEdges().iterator(); it.hasNext();) {
// Edge incomingLink = (Edge) it.next();
// if (LesscodeVisualIDRegistry.getVisualID(incomingLink) == ElementBasedLinkEditPart.VISUAL_ID) {
// DestroyElementRequest r = new DestroyElementRequest(incomingLink.getElement(), false);
// cmd.add(new DestroyElementCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
// continue;
// }
// if (LesscodeVisualIDRegistry.getVisualID(incomingLink) == SubjectReferenceBasedLinkTargetEditPart.VISUAL_ID) {
// DestroyReferenceRequest r = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
// cmd.add(new DestroyReferenceCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
// continue;
// }
// }
// for (Iterator<?> it = view.getSourceEdges().iterator(); it.hasNext();) {
// Edge outgoingLink = (Edge) it.next();
// if (LesscodeVisualIDRegistry.getVisualID(outgoingLink) == ElementBasedLinkEditPart.VISUAL_ID) {
// DestroyElementRequest r = new DestroyElementRequest(outgoingLink.getElement(), false);
// cmd.add(new DestroyElementCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
// continue;
// }
// if (LesscodeVisualIDRegistry.getVisualID(outgoingLink) == SubjectReferenceBasedLinkTargetEditPart.VISUAL_ID) {
// DestroyReferenceRequest r = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
// cmd.add(new DestroyReferenceCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
// continue;
// }
// }
// EAnnotation annotation = view.getEAnnotation("Shortcut"); //$NON-NLS-1$
// if (annotation == null) {
// // there are indirectly referenced children, need extra commands: false
// addDestroyChildNodesCommand(cmd);
// addDestroyShortcutsCommand(cmd, view);
// // delete host element
// cmd.add(new DestroyElementCommand(req));
// } else {
// cmd.add(new DeleteCommand(getEditingDomain(), view));
// }
// return getGEFWrapper(cmd.reduce());
// }
//
// /**
// * @generated
// */
// private void addDestroyChildNodesCommand(ICompositeCommand cmd) {
// View view = (View) getHost().getModel();
// for (Iterator<?> nit = view.getChildren().iterator(); nit.hasNext();) {
// Node node = (Node) nit.next();
// switch (LesscodeVisualIDRegistry.getVisualID(node)) {
// case SubjectInSubject2EditPart.VISUAL_ID:
// for (Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
// Node cnode = (Node) cit.next();
// switch (LesscodeVisualIDRegistry.getVisualID(cnode)) {
// case Subject2EditPart.VISUAL_ID:
// for (Iterator<?> it = cnode.getTargetEdges().iterator(); it.hasNext();) {
// Edge incomingLink = (Edge) it.next();
// if (LesscodeVisualIDRegistry.getVisualID(incomingLink) == ElementBasedLinkEditPart.VISUAL_ID) {
// DestroyElementRequest r = new DestroyElementRequest(incomingLink.getElement(), false);
// cmd.add(new DestroyElementCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
// continue;
// }
// if (LesscodeVisualIDRegistry.getVisualID(incomingLink) == SubjectReferenceBasedLinkTargetEditPart.VISUAL_ID) {
// DestroyReferenceRequest r = new DestroyReferenceRequest(incomingLink.getSource().getElement(), null, incomingLink.getTarget().getElement(), false);
// cmd.add(new DestroyReferenceCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
// continue;
// }
// }
// for (Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
// Edge outgoingLink = (Edge) it.next();
// if (LesscodeVisualIDRegistry.getVisualID(outgoingLink) == ElementBasedLinkEditPart.VISUAL_ID) {
// DestroyElementRequest r = new DestroyElementRequest(outgoingLink.getElement(), false);
// cmd.add(new DestroyElementCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
// continue;
// }
// if (LesscodeVisualIDRegistry.getVisualID(outgoingLink) == SubjectReferenceBasedLinkTargetEditPart.VISUAL_ID) {
// DestroyReferenceRequest r = new DestroyReferenceRequest(outgoingLink.getSource().getElement(), null, outgoingLink.getTarget().getElement(), false);
// cmd.add(new DestroyReferenceCommand(r));
// cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
// continue;
// }
// }
// cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), cnode.getElement(), false))); // directlyOwned: true
// // don't need explicit deletion of cnode as parent's view deletion would clean child views as well
// // cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), cnode));
// break;
// }
// }
// break;
// }
// }
// }
//
// /**
// * @generated
// */
// protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) {
// Command command = req.getTarget() == null ? getStartCreateRelationshipCommand(req) : getCompleteCreateRelationshipCommand(req);
// return command != null ? command : super.getCreateRelationshipCommand(req);
// }
//
// /**
// * @generated
// */
// protected Command getStartCreateRelationshipCommand(CreateRelationshipRequest req) {
// if (LesscodeElementTypes.ElementBasedLink_4001 == req.getElementType()) {
// return getGEFWrapper(new ElementBasedLinkCreateCommand(req, req.getSource(), req.getTarget()));
// }
// if (LesscodeElementTypes.SubjectReferenceBasedLinkTarget_4002 == req.getElementType()) {
// return getGEFWrapper(new SubjectReferenceBasedLinkTargetCreateCommand(req, req.getSource(), req.getTarget()));
// }
// return null;
// }
//
// /**
// * @generated
// */
// protected Command getCompleteCreateRelationshipCommand(CreateRelationshipRequest req) {
// if (LesscodeElementTypes.ElementBasedLink_4001 == req.getElementType()) {
// return getGEFWrapper(new ElementBasedLinkCreateCommand(req, req.getSource(), req.getTarget()));
// }
// if (LesscodeElementTypes.SubjectReferenceBasedLinkTarget_4002 == req.getElementType()) {
// return getGEFWrapper(new SubjectReferenceBasedLinkTargetCreateCommand(req, req.getSource(), req.getTarget()));
// }
// return null;
// }
//
// /**
// * Returns command to reorient EClass based link. New link target or source
// * should be the domain model element associated with this node.
// *
// * @generated
// */
// protected Command getReorientRelationshipCommand(ReorientRelationshipRequest req) {
// switch (getVisualID(req)) {
// case ElementBasedLinkEditPart.VISUAL_ID:
// return getGEFWrapper(new ElementBasedLinkReorientCommand(req));
// }
// return super.getReorientRelationshipCommand(req);
// }
//
// /**
// * Returns command to reorient EReference based link. New link target or source
// * should be the domain model element associated with this node.
// *
// * @generated
// */
// protected Command getReorientReferenceRelationshipCommand(ReorientReferenceRelationshipRequest req) {
// switch (getVisualID(req)) {
// case SubjectReferenceBasedLinkTargetEditPart.VISUAL_ID:
// return getGEFWrapper(new SubjectReferenceBasedLinkTargetReorientCommand(req));
// }
// return super.getReorientReferenceRelationshipCommand(req);
// }
//
//}
