| 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); |
| } |
| |
| } |