package org.eclipse.gmf.tooling.examples.compartments.diagram.edit.policies;
import java.util.Iterator;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.gef.commands.Command;
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.CreateElementRequest;
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.notation.Edge;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.commands.ChildOfB_GCreateCommand;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.parts.ChildOfB_ECNodeRelationEditPart;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.parts.ChildOfB_EEditPart;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.parts.ChildOfB_FDNodeRelationEditPart;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.parts.ChildOfB_FEditPart;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.parts.ChildOfB_GEditPart;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.parts.TopNodeBNodeECompartmentEditPart;
import org.eclipse.gmf.tooling.examples.compartments.diagram.edit.parts.TopNodeBNodeFCompartmentEditPart;
import org.eclipse.gmf.tooling.examples.compartments.diagram.part.CompartmentsVisualIDRegistry;
import org.eclipse.gmf.tooling.examples.compartments.diagram.providers.CompartmentsElementTypes;
/**
* @generated
*/
public class TopNodeBItemSemanticEditPolicy extends CompartmentsBaseItemSemanticEditPolicy {
/**
* @generated
*/
public TopNodeBItemSemanticEditPolicy() {
super(CompartmentsElementTypes.TopNodeB_2002);
}
/**
* @generated
*/
protected Command getCreateCommand(CreateElementRequest req) {
if (CompartmentsElementTypes.ChildOfB_G_3004 == req.getElementType()) {
return getGEFWrapper(new ChildOfB_GCreateCommand(req));
}
return super.getCreateCommand(req);
}
/**
* @generated
*/
protected Command getDestroyElementCommand(DestroyElementRequest req) {
View view = (View) getHost().getModel();
CompositeTransactionalCommand cmd = new CompositeTransactionalCommand(getEditingDomain(), null);
cmd.setTransactionNestingEnabled(false);
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 (CompartmentsVisualIDRegistry.getVisualID(node)) {
case ChildOfB_GEditPart.VISUAL_ID:
cmd.add(new DestroyElementCommand(new DestroyElementRequest(getEditingDomain(), node.getElement(), false))); // directlyOwned: true
// don't need explicit deletion of node as parent's view deletion would clean child views as well
// cmd.add(new org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand(getEditingDomain(), node));
break;
case TopNodeBNodeECompartmentEditPart.VISUAL_ID:
for (Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
Node cnode = (Node) cit.next();
switch (CompartmentsVisualIDRegistry.getVisualID(cnode)) {
case ChildOfB_EEditPart.VISUAL_ID:
for (Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
Edge outgoingLink = (Edge) it.next();
if (CompartmentsVisualIDRegistry.getVisualID(outgoingLink) == ChildOfB_ECNodeRelationEditPart.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;
case TopNodeBNodeFCompartmentEditPart.VISUAL_ID:
for (Iterator<?> cit = node.getChildren().iterator(); cit.hasNext();) {
Node cnode = (Node) cit.next();
switch (CompartmentsVisualIDRegistry.getVisualID(cnode)) {
case ChildOfB_FEditPart.VISUAL_ID:
for (Iterator<?> it = cnode.getSourceEdges().iterator(); it.hasNext();) {
Edge outgoingLink = (Edge) it.next();
if (CompartmentsVisualIDRegistry.getVisualID(outgoingLink) == ChildOfB_FDNodeRelationEditPart.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;
}
}
}
}
