/*
  Track  -  A grouping device within the Session.

  Copyright (C)         Lumiera.org
    2008,               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.

* *****************************************************/


#include "proc/mobject/session/track.hpp"


namespace mobject {
namespace session {
  
  /** create a new track-MObject based on the given unique ID.
   *  Initially, the reference (zero-point) time of this track
   *  will be set to 0 
   */
  Track::Track (TrackID const& trackID)
    : start_(0)
    , id_(trackID)
  {
    throwIfInvalid();
  }
  
  
  bool 
  Track::isValid()  const
  {
    return bool(id_.isValid());  ////////TODO anything more 'real' to check?
  }
  
  
  
}} // namespace mobject::session