| /******************************************************************************* |
| * Copyright (c) 2003, 2004 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.wst.common.internal.emfworkbench.edit; |
| |
| |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.eclipse.emf.common.command.Command; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.resource.ResourceSet; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.AbstractEditModelCommand; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.ComposedEditModel; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EditModel; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EditModelCommand; |
| |
| /** |
| * Insert the type's description here. Creation date: (05/22/01 8:57:38 AM) |
| * |
| * @author: Administrator |
| */ |
| public class ParentCommand extends EditModelCommand { |
| private List children; |
| private ComposedEditModel editModel; |
| private List affectedModels; |
| |
| public ParentCommand(Command targetCommand, ComposedEditModel anEditModel) { |
| super(targetCommand); |
| editModel = anEditModel; |
| children = new ArrayList(1); |
| } |
| |
| public boolean canExecute() { |
| return getTarget().canExecute(); |
| } |
| |
| protected void computeAffectedModels() { |
| ResourceSet set = null; |
| List editModels = getEditModel().getChildren(); |
| Iterator it = computeAffectedResourceSets().iterator(); |
| while (it.hasNext()) { |
| set = (ResourceSet) it.next(); |
| for (int i = 0; i < editModels.size(); i++) { |
| EditModel model = (EditModel) editModels.get(i); |
| if (model.getResourceSet() == set) { |
| getAffectedModels().add(new EditModelRetriever(model.getEmfContext(), model.getEditModelID(), model.getParams())); |
| continue; |
| } |
| } |
| } |
| } |
| |
| protected Set computeAffectedResourceSets() { |
| Iterator objects = getTarget().getAffectedObjects().iterator(); |
| Set resourceSets = new HashSet(); |
| Object o = null; |
| EObject ref = null; |
| ResourceSet set = null; |
| while (objects.hasNext()) { |
| o = objects.next(); |
| if (!(o instanceof EObject)) |
| continue; |
| ref = (EObject) o; |
| if (ref.eResource() != null) { |
| set = ref.eResource().getResourceSet(); |
| if (set != null) |
| resourceSets.add(set); |
| } |
| } |
| return resourceSets; |
| } |
| |
| protected ChildCommand createChildCommand(EditModelRetriever retriever) { |
| return new ChildCommand(this, getTarget(), retriever); |
| } |
| |
| public void execute() { |
| getTarget().execute(); |
| computeAffectedModels(); |
| pushChildrenForExecute(); |
| } |
| |
| protected void executeInModel(AbstractEditModelCommand cmd) { |
| getEditModel().getCommandStack().execute(cmd); |
| } |
| |
| protected List getAffectedModels() { |
| if (affectedModels == null) |
| affectedModels = new ArrayList(1); |
| return affectedModels; |
| } |
| |
| protected List getChildren() { |
| return children; |
| } |
| |
| protected ComposedEditModel getEditModel() { |
| return editModel; |
| } |
| |
| protected void invertChildren() { |
| invertChildrenExcept((ChildCommand) null); |
| } |
| |
| protected void invertChildrenExcept(ChildCommand caller) { |
| for (int i = 0; i < children.size(); i++) { |
| ChildCommand childCmd = (ChildCommand) children.get(i); |
| if (caller == null || childCmd != caller) |
| childCmd.invertAndPush(); |
| } |
| } |
| |
| protected void invertFrom(ChildCommand caller) { |
| invertAndPush(); |
| invertChildrenExcept(caller); |
| } |
| |
| protected void pushChildrenForExecute() { |
| for (int i = 0; i < getAffectedModels().size(); i++) { |
| EditModelRetriever retriever = (EditModelRetriever) getAffectedModels().get(i); |
| ChildCommand command = createChildCommand(retriever); |
| getChildren().add(command); |
| command.executeInModel(command); |
| } |
| } |
| |
| public void redo() { |
| getTarget().redo(); |
| invertChildren(); |
| } |
| |
| public void redoFrom(ChildCommand child) { |
| invertFrom(child); |
| } |
| |
| public void undo() { |
| getTarget().undo(); |
| invertChildren(); |
| } |
| |
| public void undoFrom(ChildCommand child) { |
| invertFrom(child); |
| } |
| } |