| /* |
| * Copyright (c) 2010, 2012, 2015 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Martin Fluegge - initial API and implementation |
| * |
| */ |
| package org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.policies; |
| |
| import org.eclipse.emf.cdo.dawn.examples.acore.AClass; |
| import org.eclipse.emf.cdo.dawn.examples.acore.AInterface; |
| import org.eclipse.emf.cdo.dawn.examples.acore.diagram.edit.helpers.AcoreBaseEditHelper; |
| import org.eclipse.emf.cdo.dawn.examples.acore.diagram.part.AcoreVisualIDRegistry; |
| import org.eclipse.emf.cdo.dawn.examples.acore.diagram.providers.AcoreElementTypes; |
| |
| 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 java.util.Iterator; |
| |
| /** |
| * @generated |
| */ |
| public class AcoreBaseItemSemanticEditPolicy 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 AcoreBaseItemSemanticEditPolicy(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 |
| */ |
| @Override |
| public Command getCommand(Request request) |
| { |
| if (request instanceof ReconnectRequest) |
| { |
| Object view = ((ReconnectRequest)request).getConnectionEditPart().getModel(); |
| if (view instanceof View) |
| { |
| Integer id = new Integer(AcoreVisualIDRegistry.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 |
| */ |
| @Override |
| 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(AcoreBaseEditHelper.EDIT_POLICY_COMMAND, command); |
| } |
| IElementType requestContextElementType = getContextElementType(request); |
| request.setParameter(AcoreBaseEditHelper.CONTEXT_ELEMENT_TYPE, requestContextElementType); |
| ICommand command = requestContextElementType.getEditCommand(request); |
| request.setParameter(AcoreBaseEditHelper.EDIT_POLICY_COMMAND, null); |
| request.setParameter(AcoreBaseEditHelper.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 = AcoreElementTypes.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() //$NON-NLS-1$ |
| || nextView.getElement() != view.getElement()) |
| { |
| continue; |
| } |
| cmd.add(new DeleteCommand(getEditingDomain(), nextView)); |
| } |
| } |
| |
| /** |
| * @generated |
| */ |
| public static class LinkConstraints |
| { |
| |
| /** |
| * @generated |
| */ |
| public static boolean canCreateAClassSubClasses_4001(AClass source, AClass target) |
| { |
| if (source != null) |
| { |
| if (source.getSubClasses().contains(target)) |
| { |
| return false; |
| } |
| } |
| |
| return canExistAClassSubClasses_4001(source, target); |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canCreateAClassImplementedInterfaces_4002(AClass source, AInterface target) |
| { |
| if (source != null) |
| { |
| if (source.getImplementedInterfaces().contains(target)) |
| { |
| return false; |
| } |
| } |
| |
| return canExistAClassImplementedInterfaces_4002(source, target); |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canCreateAClassAssociations_4003(AClass source, AClass target) |
| { |
| if (source != null) |
| { |
| if (source.getAssociations().contains(target)) |
| { |
| return false; |
| } |
| } |
| |
| return canExistAClassAssociations_4003(source, target); |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canCreateAClassAggregations_4004(AClass source, AClass target) |
| { |
| if (source != null) |
| { |
| if (source.getAggregations().contains(target)) |
| { |
| return false; |
| } |
| } |
| |
| return canExistAClassAggregations_4004(source, target); |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canCreateAClassCompositions_4005(AClass source, AClass target) |
| { |
| if (source != null) |
| { |
| if (source.getCompositions().contains(target)) |
| { |
| return false; |
| } |
| } |
| |
| return canExistAClassCompositions_4005(source, target); |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canExistAClassSubClasses_4001(AClass source, AClass target) |
| { |
| return true; |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canExistAClassImplementedInterfaces_4002(AClass source, AInterface target) |
| { |
| return true; |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canExistAClassAssociations_4003(AClass source, AClass target) |
| { |
| return true; |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canExistAClassAggregations_4004(AClass source, AClass target) |
| { |
| return true; |
| } |
| |
| /** |
| * @generated |
| */ |
| public static boolean canExistAClassCompositions_4005(AClass source, AClass target) |
| { |
| return true; |
| } |
| } |
| |
| } |