| package people.diagram.edit.policies; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gef.commands.UnexecutableCommand; |
| import org.eclipse.gef.requests.ReconnectRequest; |
| import org.eclipse.gmf.runtime.common.core.command.ICommand; |
| import org.eclipse.gmf.runtime.common.core.command.ICompositeCommand; |
| import org.eclipse.gmf.runtime.diagram.core.commands.DeleteCommand; |
| 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.IGraphicalEditPart; |
| import org.eclipse.gmf.runtime.diagram.ui.editpolicies.SemanticEditPolicy; |
| import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand; |
| import org.eclipse.gmf.runtime.emf.type.core.IElementType; |
| import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest; |
| import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest; |
| 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.DestroyRequest; |
| import org.eclipse.gmf.runtime.emf.type.core.requests.DuplicateElementsRequest; |
| import org.eclipse.gmf.runtime.emf.type.core.requests.GetEditContextRequest; |
| import org.eclipse.gmf.runtime.emf.type.core.requests.IEditCommandRequest; |
| import org.eclipse.gmf.runtime.emf.type.core.requests.MoveRequest; |
| 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.emf.type.core.requests.SetRequest; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| import people.Person; |
| import people.diagram.edit.helpers.PeopleBaseEditHelper; |
| import people.diagram.part.PeopleDiagramEditorPlugin; |
| import people.diagram.part.PeopleVisualIDRegistry; |
| import people.diagram.providers.PeopleElementTypes; |
| |
| /** |
| * @generated |
| */ |
| public class PeopleBaseItemSemanticEditPolicy extends SemanticEditPolicy { |
| |
| /** |
| * Extended request data key to hold editpart visual id. |
| * @generated |
| */ |
| public static final String VISUAL_ID_KEY = "visual_id"; //$NON-NLS-1$ |
| |
| /** |
| * @generated |
| */ |
| private final IElementType myElementType; |
| |
| /** |
| * @generated |
| */ |
| protected PeopleBaseItemSemanticEditPolicy(IElementType elementType) { |
| myElementType = elementType; |
| } |
| |
| /** |
| * Extended request data key to hold editpart visual id. |
| * Add visual id of edited editpart to extended data of the request |
| * so command switch can decide what kind of diagram element is being edited. |
| * It is done in those cases when it's not possible to deduce diagram |
| * element kind from domain element. |
| * |
| * @generated |
| */ |
| public Command getCommand(Request request) { |
| if (request instanceof ReconnectRequest) { |
| Object view = ((ReconnectRequest) request).getConnectionEditPart() |
| .getModel(); |
| if (view instanceof View) { |
| Integer id = new Integer( |
| PeopleVisualIDRegistry.getVisualID((View) view)); |
| request.getExtendedData().put(VISUAL_ID_KEY, id); |
| } |
| } |
| return super.getCommand(request); |
| } |
| |
| /** |
| * Returns visual id from request parameters. |
| * @generated |
| */ |
| protected int getVisualID(IEditCommandRequest request) { |
| Object id = request.getParameter(VISUAL_ID_KEY); |
| return id instanceof Integer ? ((Integer) id).intValue() : -1; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getSemanticCommand(IEditCommandRequest request) { |
| IEditCommandRequest completedRequest = completeRequest(request); |
| Command semanticCommand = getSemanticCommandSwitch(completedRequest); |
| semanticCommand = getEditHelperCommand(completedRequest, |
| semanticCommand); |
| if (completedRequest instanceof DestroyRequest) { |
| DestroyRequest destroyRequest = (DestroyRequest) completedRequest; |
| return shouldProceed(destroyRequest) ? addDeleteViewCommand( |
| semanticCommand, destroyRequest) : null; |
| } |
| return semanticCommand; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command addDeleteViewCommand(Command mainCommand, |
| DestroyRequest completedRequest) { |
| Command deleteViewCommand = getGEFWrapper(new DeleteCommand( |
| getEditingDomain(), (View) getHost().getModel())); |
| return mainCommand == null ? deleteViewCommand : mainCommand |
| .chain(deleteViewCommand); |
| } |
| |
| /** |
| * @generated |
| */ |
| private Command getEditHelperCommand(IEditCommandRequest request, |
| Command editPolicyCommand) { |
| if (editPolicyCommand != null) { |
| ICommand command = editPolicyCommand instanceof ICommandProxy ? ((ICommandProxy) editPolicyCommand) |
| .getICommand() : new CommandProxy(editPolicyCommand); |
| request.setParameter(PeopleBaseEditHelper.EDIT_POLICY_COMMAND, |
| command); |
| } |
| IElementType requestContextElementType = getContextElementType(request); |
| request.setParameter(PeopleBaseEditHelper.CONTEXT_ELEMENT_TYPE, |
| requestContextElementType); |
| ICommand command = requestContextElementType.getEditCommand(request); |
| request.setParameter(PeopleBaseEditHelper.EDIT_POLICY_COMMAND, null); |
| request.setParameter(PeopleBaseEditHelper.CONTEXT_ELEMENT_TYPE, null); |
| if (command != null) { |
| if (!(command instanceof CompositeTransactionalCommand)) { |
| command = new CompositeTransactionalCommand(getEditingDomain(), |
| command.getLabel()).compose(command); |
| } |
| return new ICommandProxy(command); |
| } |
| return editPolicyCommand; |
| } |
| |
| /** |
| * @generated |
| */ |
| private IElementType getContextElementType(IEditCommandRequest request) { |
| IElementType requestContextElementType = PeopleElementTypes |
| .getElementType(getVisualID(request)); |
| return requestContextElementType != null ? requestContextElementType |
| : myElementType; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getSemanticCommandSwitch(IEditCommandRequest req) { |
| if (req instanceof CreateRelationshipRequest) { |
| return getCreateRelationshipCommand((CreateRelationshipRequest) req); |
| } else if (req instanceof CreateElementRequest) { |
| return getCreateCommand((CreateElementRequest) req); |
| } else if (req instanceof ConfigureRequest) { |
| return getConfigureCommand((ConfigureRequest) req); |
| } else if (req instanceof DestroyElementRequest) { |
| return getDestroyElementCommand((DestroyElementRequest) req); |
| } else if (req instanceof DestroyReferenceRequest) { |
| return getDestroyReferenceCommand((DestroyReferenceRequest) req); |
| } else if (req instanceof DuplicateElementsRequest) { |
| return getDuplicateCommand((DuplicateElementsRequest) req); |
| } else if (req instanceof GetEditContextRequest) { |
| return getEditContextCommand((GetEditContextRequest) req); |
| } else if (req instanceof MoveRequest) { |
| return getMoveCommand((MoveRequest) req); |
| } else if (req instanceof ReorientReferenceRelationshipRequest) { |
| return getReorientReferenceRelationshipCommand((ReorientReferenceRelationshipRequest) req); |
| } else if (req instanceof ReorientRelationshipRequest) { |
| return getReorientRelationshipCommand((ReorientRelationshipRequest) req); |
| } else if (req instanceof SetRequest) { |
| return getSetCommand((SetRequest) req); |
| } |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getConfigureCommand(ConfigureRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getCreateRelationshipCommand(CreateRelationshipRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getCreateCommand(CreateElementRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getSetCommand(SetRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getEditContextCommand(GetEditContextRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getDestroyElementCommand(DestroyElementRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getDestroyReferenceCommand(DestroyReferenceRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getDuplicateCommand(DuplicateElementsRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getMoveCommand(MoveRequest req) { |
| return null; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getReorientReferenceRelationshipCommand( |
| ReorientReferenceRelationshipRequest req) { |
| return UnexecutableCommand.INSTANCE; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected Command getReorientRelationshipCommand( |
| ReorientRelationshipRequest req) { |
| return UnexecutableCommand.INSTANCE; |
| } |
| |
| /** |
| * @generated |
| */ |
| protected final Command getGEFWrapper(ICommand cmd) { |
| return new ICommandProxy(cmd); |
| } |
| |
| /** |
| * Returns editing domain from the host edit part. |
| * @generated |
| */ |
| protected TransactionalEditingDomain getEditingDomain() { |
| return ((IGraphicalEditPart) getHost()).getEditingDomain(); |
| } |
| |
| /** |
| * Clean all shortcuts to the host element from the same diagram |
| * @generated |
| */ |
| protected void addDestroyShortcutsCommand(ICompositeCommand cmd, View view) { |
| assert view.getEAnnotation("Shortcut") == null; //$NON-NLS-1$ |
| for (Iterator it = view.getDiagram().getChildren().iterator(); it |
| .hasNext();) { |
| View nextView = (View) it.next(); |
| if (nextView.getEAnnotation("Shortcut") == null || !nextView.isSetElement() || nextView.getElement() != view.getElement()) { //$NON-NLS-1$ |
| continue; |
| } |
| cmd.add(new DeleteCommand(getEditingDomain(), nextView)); |
| } |
| } |
| |
| /** |
| * @generated |
| */ |
| public static LinkConstraints getLinkConstraints() { |
| LinkConstraints cached = PeopleDiagramEditorPlugin.getInstance() |
| .getLinkConstraints(); |
| if (cached == null) { |
| PeopleDiagramEditorPlugin.getInstance().setLinkConstraints( |
| cached = new LinkConstraints()); |
| } |
| return cached; |
| } |
| |
| /** |
| * @generated |
| */ |
| public static class LinkConstraints { |
| |
| /** |
| * @generated |
| */ |
| LinkConstraints() { |
| // use static method #getLinkConstraints() to access instance |
| } |
| |
| /** |
| * @generated |
| */ |
| public boolean canCreatePersonChildren_4002(Person source, Person target) { |
| if (source != null) { |
| if (source.getChildren().contains(target)) { |
| return false; |
| } |
| } |
| |
| return canExistPersonChildren_4002(source, target); |
| } |
| |
| /** |
| * @generated |
| */ |
| public boolean canExistPersonChildren_4002(Person source, Person target) { |
| return true; |
| } |
| } |
| |
| } |