| /******************************************************************************* |
| * Copyright (c) 2000, 2010 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.gef.examples.flow.policies; |
| |
| import java.util.List; |
| |
| import org.eclipse.gef.EditPart; |
| import org.eclipse.gef.EditPolicy; |
| import org.eclipse.gef.Request; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gef.commands.CompoundCommand; |
| import org.eclipse.gef.editpolicies.LayoutEditPolicy; |
| import org.eclipse.gef.editpolicies.NonResizableEditPolicy; |
| import org.eclipse.gef.examples.flow.model.Activity; |
| import org.eclipse.gef.examples.flow.model.StructuredActivity; |
| import org.eclipse.gef.examples.flow.model.commands.AddCommand; |
| import org.eclipse.gef.examples.flow.model.commands.CreateCommand; |
| import org.eclipse.gef.examples.flow.parts.SimpleActivityPart; |
| import org.eclipse.gef.requests.ChangeBoundsRequest; |
| import org.eclipse.gef.requests.CreateRequest; |
| |
| /** |
| * @author Daniel Lee |
| */ |
| public class StructuredActivityLayoutEditPolicy extends LayoutEditPolicy { |
| |
| protected Command createAddCommand(EditPart child) { |
| Activity activity = (Activity) child.getModel(); |
| AddCommand add = new AddCommand(); |
| add.setParent((StructuredActivity) getHost().getModel()); |
| add.setChild(activity); |
| return add; |
| } |
| |
| /** |
| * @see org.eclipse.gef.editpolicies.OrderedLayoutEditPolicy#createChildEditPolicy(org.eclipse.gef.EditPart) |
| */ |
| protected EditPolicy createChildEditPolicy(EditPart child) { |
| if (child instanceof SimpleActivityPart) |
| return new SimpleActivitySelectionEditPolicy(); |
| return new NonResizableEditPolicy(); |
| } |
| |
| protected Command createMoveChildCommand(EditPart child, EditPart after) { |
| return null; |
| } |
| |
| protected Command getAddCommand(Request req) { |
| ChangeBoundsRequest request = (ChangeBoundsRequest) req; |
| List editParts = request.getEditParts(); |
| CompoundCommand command = new CompoundCommand(); |
| for (int i = 0; i < editParts.size(); i++) { |
| EditPart child = (EditPart) editParts.get(i); |
| command.add(createAddCommand(child)); |
| } |
| return command.unwrap(); |
| } |
| |
| /** |
| * @see LayoutEditPolicy#getCreateCommand(org.eclipse.gef.requests.CreateRequest) |
| */ |
| protected Command getCreateCommand(CreateRequest request) { |
| CreateCommand command = new CreateCommand(); |
| command.setParent((StructuredActivity) getHost().getModel()); |
| command.setChild((Activity) request.getNewObject()); |
| return command; |
| } |
| |
| /** |
| * @see org.eclipse.gef.editpolicies.LayoutEditPolicy#getMoveChildrenCommand(org.eclipse.gef.Request) |
| */ |
| protected Command getMoveChildrenCommand(Request request) { |
| return null; |
| } |
| |
| } |