/* Copyright (C) 2014 InfiniDB, Inc.

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; version 2 of
   the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
   MA 02110-1301, USA. */

/******************************************************************************
 * $Id: undoable.h 1823 2013-01-21 14:13:09Z rdempsey $
 *
 *****************************************************************************/

/** @file
 * This class defines the interface the BRM shared structures inherit
 * to support revoking any changes made on error.
 */

#pragma once

#include <vector>

#include "brmtypes.h"

#define EXPORT

namespace BRM
{
class Undoable
{
 public:
  EXPORT Undoable();
  EXPORT virtual ~Undoable();

  EXPORT virtual void confirmChanges();
  EXPORT virtual void undoChanges();

 protected:
  virtual void makeUndoRecord(void* start, int size);
  std::vector<ImageDelta> undoRecords;
};

#undef EXPORT

}  // namespace BRM