| //------------------------------------------------------------------------------ |
| // Copyright (c) 2005, 2007 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.library.edit.command; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.emf.common.command.AbstractCommand; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.epf.uma.MethodConfiguration; |
| |
| /** |
| * This command is used to move a view in a method configuration |
| * @author Xiang Dong Hu |
| * @since 1.2 |
| * fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=173827 |
| */ |
| public class MoveInConfigurationCommand extends AbstractCommand implements |
| IResourceAwareCommand { |
| |
| private MethodConfiguration config; |
| |
| private EStructuralFeature feature; |
| |
| private List elementsList; |
| |
| private Collection modifiedResources; |
| |
| private static int UP = 1; |
| |
| private static int Down = 0; |
| |
| private int direction = -1; |
| |
| private boolean moved; |
| |
| public MoveInConfigurationCommand(MethodConfiguration config, List elementsList, |
| EStructuralFeature feature, int direction) { |
| this.config = config; |
| this.feature = feature; |
| this.elementsList = elementsList; |
| this.direction = direction; |
| } |
| |
| protected boolean prepare() { |
| return true; |
| } |
| |
| public Collection getModifiedResources() { |
| return modifiedResources; |
| } |
| |
| public void execute() { |
| modifiedResources = new HashSet(); |
| redo(); |
| |
| } |
| |
| public void redo() { |
| if (config == null) |
| return; |
| for (Iterator it = elementsList.iterator(); it.hasNext();) { |
| Object object = it.next(); |
| if (feature.isMany()) { |
| EList list = (EList) config.eGet(feature); |
| int index = list.indexOf(object); |
| if (direction == UP) { |
| if (index > 0) |
| list.move(index - 1, object); |
| } else if (direction == Down) { |
| if (index < list.size()) |
| list.move(index + elementsList.size(), object); |
| } |
| moved = true; |
| } else { |
| config.eSet(feature, null); |
| } |
| } |
| if (config.eResource() != null) { |
| modifiedResources.add(config.eResource()); |
| } |
| |
| } |
| |
| public void undo() { |
| if (moved) { |
| for (Iterator it = elementsList.iterator(); it.hasNext();) { |
| Object object = it.next(); |
| if (feature.isMany()) { |
| EList list = (EList) config.eGet(feature); |
| int index = list.indexOf(object); |
| if (direction == UP) { |
| if (index < list.size()) |
| list.move(index + elementsList.size(), object); |
| } else if (direction == Down) { |
| if (index > 0) |
| list.move(index - 1, object); |
| } |
| moved = true; |
| } else { |
| config.eSet(feature, object); |
| } |
| } |
| moved = false; |
| } |
| } |
| |
| public Collection getAffectedObjects() { |
| return Collections.singletonList(config); |
| } |
| |
| } |