/**
* Copyright (c) 2012 committers of YAKINDU 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:
* Markus Muehlbrandt - initial API and implementation
*
*/
package org.yakindu.base.gmf.runtime.treelayout.commands;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.gmf.runtime.notation.View;
import org.yakindu.base.gmf.runtime.treelayout.TreeLayoutConstraint;
import org.yakindu.base.gmf.runtime.treelayout.TreeLayoutUtil;
/**
*
* @author Markus Muehlbrandt
*
*/
public class UpdateAnnotationsOnMoveCommand extends
AbstractTransactionalCommand {
private final IGraphicalEditPart editPart;
private final TreeLayoutConstraint layoutConstraint;
public UpdateAnnotationsOnMoveCommand(
TransactionalEditingDomain editingDomain,
IGraphicalEditPart editPart, TreeLayoutConstraint layoutConstraint) {
super(editingDomain, "Move TreeNode", null);
this.editPart = editPart;
this.layoutConstraint = layoutConstraint;
}
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor monitor,
IAdaptable info) throws ExecutionException {
final View parentView = TreeLayoutUtil.getTreeNodeParentView(editPart
.getNotationView());
if (parentView != null) {
final IGraphicalEditPart parentEditPart = (IGraphicalEditPart) editPart
.findEditPart(editPart.getParent(), parentView.getElement());
if (parentEditPart != null) {
final List<IGraphicalEditPart> treeChildren = new ArrayList<IGraphicalEditPart>(
TreeLayoutUtil.getOrderedTreeChildren(parentEditPart));
if (!treeChildren.isEmpty()) {
final int oldPos = treeChildren.indexOf(editPart);
final int newPos = layoutConstraint.getTreeInnerRankIndex();
if (newPos != -1) {
if (oldPos != newPos) {
final IGraphicalEditPart element = treeChildren
.get(oldPos);
treeChildren.remove(oldPos);
treeChildren.add(newPos, element);
TreeLayoutUtil
.setTreeNodesPositionAnnotation(TreeLayoutUtil
.getViews(treeChildren));
}
}
return CommandResult.newOKCommandResult();
}
}
}
return CommandResult
.newErrorCommandResult("Parent view or parent edit part not found!");
}
}