grid.hpp

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/*
  GRID.hpp  -  time scale grid abstraction

  Copyright (C)         Lumiera.org
    2011,               Hermann Vosseler <Ichthyostega@web.de>

  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; either version 2 of
  the License, or (at your option) any later version.

  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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/


#ifndef LIB_TIME_GRID_H
#define LIB_TIME_GRID_H

#include "lib/time/timevalue.hpp"

#include <memory>


namespace lib {
namespace time {
  
  
  class Grid
    {
    public:
      virtual ~Grid();   
      
      
      virtual FrameCnt  gridPoint (TimeValue const& raw)  const   =0;
      virtual TimeValue gridLocal (TimeValue const& raw)  const   =0;
      virtual TimeValue timeOf    (FrameCnt gridPoint)    const   =0;
      virtual TimeValue timeOf    (FSecs gridTime, int=0) const   =0;
    };
  
  using PGrid = std::shared_ptr<const Grid>;
  
  
  
}} // lib::time
#endif