package org.eclipse.gmf.tooling.examples.affixednode.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.requests.CreateElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyElementRequest;
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.affixednode.diagram.edit.commands.IncomingCommunicatorCreateCommand;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.commands.OutcomingCommunicatorCreateCommand;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.parts.CommunicationEditPart;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.parts.IncomingCommunicatorEditPart;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.parts.OutcomingCommunicatorEditPart;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.part.AffixednodeVisualIDRegistry;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.providers.AffixednodeElementTypes;
/**
* @generated
*/
public class BundleItemSemanticEditPolicy extends AffixednodeBaseItemSemanticEditPolicy {
/**
* @generated
*/
public BundleItemSemanticEditPolicy() {
super(AffixednodeElementTypes.Bundle_2001);
}
/**
* @generated
*/
protected Command getCreateCommand(CreateElementRequest req) {
if (AffixednodeElementTypes.IncomingCommunicator_3001 == req.getElementType()) {
return getGEFWrapper(new IncomingCommunicatorCreateCommand(req));
}
if (AffixednodeElementTypes.OutcomingCommunicator_3002 == req.getElementType()) {
return getGEFWrapper(new OutcomingCommunicatorCreateCommand(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 (AffixednodeVisualIDRegistry.getVisualID(node)) {
case IncomingCommunicatorEditPart.VISUAL_ID:
for (Iterator<?> it = node.getTargetEdges().iterator(); it.hasNext();) {
Edge incomingLink = (Edge) it.next();
if (AffixednodeVisualIDRegistry.getVisualID(incomingLink) == CommunicationEditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(incomingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), incomingLink));
continue;
}
}
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 OutcomingCommunicatorEditPart.VISUAL_ID:
for (Iterator<?> it = node.getSourceEdges().iterator(); it.hasNext();) {
Edge outgoingLink = (Edge) it.next();
if (AffixednodeVisualIDRegistry.getVisualID(outgoingLink) == CommunicationEditPart.VISUAL_ID) {
DestroyElementRequest r = new DestroyElementRequest(outgoingLink.getElement(), false);
cmd.add(new DestroyElementCommand(r));
cmd.add(new DeleteCommand(getEditingDomain(), outgoingLink));
continue;
}
}
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;
}
}
}
}
