//------------------------------------------------------------------------------
// 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.diagramming.base.commands;

import org.eclipse.epf.diagram.core.bridge.BridgeHelper;
import org.eclipse.epf.library.ILibraryManager;
import org.eclipse.epf.library.LibraryService;
import org.eclipse.epf.uma.DescribableElement;
import org.eclipse.epf.uma.MethodElement;
import org.eclipse.gef.commands.Command;
import org.eclipse.uml2.uml.ActivityNode;
import org.eclipse.uml2.uml.NamedElement;

/**
 * 
 * @author Shashidhar Kannoori
 */
public class EditNameCommand extends Command {
	
	public static final String label = "EditNameCommand";
	private NamedElement object;
	private String newValue;
	private String oldName, oldPresentationName;
	private String elementGuid;
	
	public EditNameCommand(NamedElement object, String newValue) {
		super(label);
		this.object = object;
		this.newValue = newValue;
	}
	
	public boolean canExecute() {
		return super.canExecute();
	}
	
	public void execute() {
		MethodElement element = BridgeHelper.getMethodElement((ActivityNode)object);
		
		// set Name
		this.oldName = element.getName();
		element.setName(newValue);
		elementGuid = element.getGuid();
		
		// setPresentationName
		if(element instanceof DescribableElement){
			this.oldPresentationName = ((DescribableElement)element).getPresentationName(); 
			((DescribableElement)element).setPresentationName(newValue);
		}
		
	}
	
	public void redo() {
		execute();
	}
	public void undo() {
		ILibraryManager manager = LibraryService.getInstance()
							.getCurrentLibraryManager();
		if(manager != null){
			MethodElement element = manager.getMethodElement(elementGuid);
			if(element != null){
				element.setName(this.oldName);
				if(element instanceof DescribableElement){
					((DescribableElement)element).setPresentationName(this.oldPresentationName);
				}
			}
		}
	}
}