| /******************************************************************************* |
| * Copyright (c) 2003, 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.logicdesigner.model.commands; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.eclipse.gef.commands.Command; |
| |
| import org.eclipse.gef.examples.logicdesigner.LogicMessages; |
| import org.eclipse.gef.examples.logicdesigner.model.LogicGuide; |
| import org.eclipse.gef.examples.logicdesigner.model.LogicRuler; |
| import org.eclipse.gef.examples.logicdesigner.model.LogicSubpart; |
| |
| /** |
| * @author Pratik Shah |
| */ |
| public class DeleteGuideCommand extends Command { |
| |
| private LogicRuler parent; |
| private LogicGuide guide; |
| private Map oldParts; |
| |
| public DeleteGuideCommand(LogicGuide guide, LogicRuler parent) { |
| super(LogicMessages.DeleteGuideCommand_Label); |
| this.guide = guide; |
| this.parent = parent; |
| } |
| |
| public boolean canUndo() { |
| return true; |
| } |
| |
| public void execute() { |
| oldParts = new HashMap(guide.getMap()); |
| Iterator iter = oldParts.keySet().iterator(); |
| while (iter.hasNext()) { |
| guide.detachPart((LogicSubpart) iter.next()); |
| } |
| parent.removeGuide(guide); |
| } |
| |
| public void undo() { |
| parent.addGuide(guide); |
| Iterator iter = oldParts.keySet().iterator(); |
| while (iter.hasNext()) { |
| LogicSubpart part = (LogicSubpart) iter.next(); |
| guide.attachPart(part, ((Integer) oldParts.get(part)).intValue()); |
| } |
| } |
| } |