| //------------------------------------------------------------------------------ |
| // 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.library.edit.process.command; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.emf.common.command.AbstractCommand; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.epf.library.edit.command.IResourceAwareCommand; |
| import org.eclipse.epf.library.edit.util.TngUtil; |
| import org.eclipse.epf.uma.Activity; |
| import org.eclipse.epf.uma.BreakdownElement; |
| import org.eclipse.epf.uma.WorkBreakdownElement; |
| |
| |
| /** |
| * Command to move down element in breakdown structure |
| * |
| * @author Shilpa Toraskar |
| * @since 1.0 |
| */ |
| public class MoveDownCommand extends AbstractCommand implements |
| IResourceAwareCommand { |
| private Activity activity; |
| |
| private Collection modifiedResources; |
| |
| private int elementLocation = 0; |
| |
| private int transferLocation = 0; |
| |
| private Object elementObj; |
| |
| private Collection eClasses; |
| |
| private boolean adjacent = false; |
| |
| private Map<WorkBreakdownElement, WorkBreakdownElement> globalPresentedAfterMap = new HashMap<WorkBreakdownElement, WorkBreakdownElement>(); |
| |
| /** |
| * |
| */ |
| public MoveDownCommand(Activity activity, Object elementObj, |
| Collection eClasses) { |
| super(); |
| this.activity = activity; |
| this.elementObj = elementObj; |
| this.eClasses = eClasses; |
| |
| this.modifiedResources = new HashSet(); |
| if (activity.eResource() != null) { |
| modifiedResources.add(activity.eResource()); |
| } |
| |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.common.command.Command#execute() |
| */ |
| public void execute() { |
| if (elementObj instanceof WorkBreakdownElement) { |
| boolean completelyDone = MoveUpCommand.handleWbeGlobalMove(activity, |
| (WorkBreakdownElement) elementObj, false, globalPresentedAfterMap); |
| if (completelyDone) { |
| return; |
| } |
| } |
| |
| List allElements = activity.getBreakdownElements(); |
| |
| for (int i = 0; i < allElements.size(); i++) { |
| Object obj = allElements.get(i); |
| if (obj.equals(elementObj)) { |
| elementLocation = i; |
| break; |
| } |
| } |
| |
| if (allElements.size() > 0) { |
| transferLocation = allElements.size() - 1; |
| } |
| for (int i = elementLocation + 1; i < allElements.size(); i++) { |
| Object obj = allElements.get(i); |
| if (TngUtil.isEClassInstanceOf(eClasses, obj)) { |
| transferLocation = i; |
| break; |
| } |
| } |
| |
| BreakdownElement next = (BreakdownElement) allElements.get(transferLocation); |
| BreakdownElement e = (BreakdownElement) elementObj; |
| if(e.getPresentedAfter() == next) { |
| adjacent = true; |
| } |
| |
| redo(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.emf.common.command.Command#redo() |
| */ |
| public void redo() { |
| if(adjacent) { |
| // swap "prensented-after" element |
| // |
| BreakdownElement next = (BreakdownElement) activity.getBreakdownElements().get(transferLocation); |
| BreakdownElement e = (BreakdownElement) elementObj; |
| e.setPresentedAfter(next.getPresentedAfter()); |
| next.setPresentedAfter(e); |
| } |
| ((EList) activity.getBreakdownElements()).move(transferLocation, |
| elementLocation); |
| |
| } |
| |
| public void undo() { |
| ((EList) activity.getBreakdownElements()).move(elementLocation, |
| transferLocation); |
| if(adjacent) { |
| // restore "prensented-after" element |
| // |
| BreakdownElement next = (BreakdownElement) activity.getBreakdownElements().get(transferLocation); |
| BreakdownElement e = (BreakdownElement) elementObj; |
| next.setPresentedAfter(e.getPresentedAfter()); |
| e.setPresentedAfter(next); |
| } |
| } |
| |
| protected boolean prepare() { |
| return true; |
| } |
| |
| public Collection getModifiedResources() { |
| return modifiedResources; |
| } |
| } |