/*
 * Project: MoleCuilder
 * Description: creates and alters molecular systems
 * Copyright (C)  2010 University of Bonn. All rights reserved.
 * Please see the LICENSE file or "Copyright notice" in builder.cpp for details.
 */

/*
 * UndoAction.cpp
 *
 *  Created on: Oct 27, 2010
 *      Author: heber
 */

// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "CodePatterns/MemDebug.hpp"

#include "ActionHistory.hpp"

#include <iostream>

#include "CodePatterns/Assert.hpp"

using namespace MoleCuilder;

#include "Actions/UndoAction.hpp"

// and construct the stuff
#include "UndoAction.def"
#include "Action_impl_pre.hpp"

/** =========== define the function ====================== */
Action::state_ptr UndoAction::performCall(){
  std::cout << "Undo" << std::endl;
  ActionHistory::getInstance().undoLast();
  return Action::success;
}

Action::state_ptr UndoAction::performUndo(Action::state_ptr){
  ASSERT(0,"Cannot undo an undo (should use redo for this");
  return Action::success;
}

Action::state_ptr UndoAction::performRedo(Action::state_ptr){
  ASSERT(0,"Cannot redo an undo");
  return Action::success;
}

bool UndoAction::canUndo(){
  return false;
}

bool UndoAction::shouldUndo(){
  return false;
}
/** =========== end of function ====================== */