| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 2006 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 implementation |
| //------------------------------------------------------------------------------ |
| package org.eclipse.epf.authoring.gef.commands; |
| |
| import org.eclipse.draw2d.AbsoluteBendpoint; |
| import org.eclipse.draw2d.Bendpoint; |
| import org.eclipse.draw2d.geometry.Point; |
| import org.eclipse.epf.authoring.ui.AuthoringUIResources; |
| import org.eclipse.epf.diagram.model.Link; |
| import org.eclipse.gef.commands.Command; |
| |
| /** |
| * Bendpoint manipulation commands cannot be chained or compounded. |
| * |
| * @author Phong Nguyen Le |
| * @since 1.0 |
| */ |
| public class MoveBendpointCommand extends Command { |
| |
| private Link link; |
| |
| private int index; |
| |
| private Bendpoint oldBendpoint, newBendpoint; |
| |
| private static final String LABEL = AuthoringUIResources.gef_moveBendpointCommand_label; //$NON-NLS-1$ |
| |
| public MoveBendpointCommand(Link link, Point location, int index) { |
| super(LABEL); |
| this.link = link; |
| this.index = index; |
| newBendpoint = new AbsoluteBendpoint(location); |
| oldBendpoint = (Bendpoint) link.getBendpoints().get(index); |
| } |
| |
| public boolean canExecute() { |
| return link != null && index >= 0 && newBendpoint != null |
| && oldBendpoint != null; |
| } |
| |
| public void execute() { |
| link.getBendpoints().set(index, newBendpoint); |
| } |
| |
| public void undo() { |
| link.getBendpoints().set(index, oldBendpoint); |
| } |
| |
| } |