LUMIERA.clone/src/proc/asset/struct-scheme.hpp

/*
  STRUCT-SCHEME.hpp  -  naming and designation scheme for structural assets

  Copyright (C)         Lumiera.org
    2010,               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.

*/


/** @file struct-scheme.hpp
 ** Naming and labelling scheme for structural assets.
 ** Preconfigured traits data for the relevant types encountered in
 ** Lumiera's session data model.
 **
 ** @see struct-factory-impl.hpp
 ** @see entry-id.hpp
 **
 */


#ifndef ASSET_STRUCT_SCHEME_H
#define ASSET_STRUCT_SCHEME_H


#include "lib/symbol.hpp"
#include "proc/asset.hpp"
#include "lib/idi/entry-id.hpp"

#include <cstdlib>

/////////////////////////////////////////////////////////TICKET #166 : needs to be pushed down into a *.cpp
#include <boost/format.hpp>
using boost::format;


namespace proc {
  struct StreamType;
  
namespace mobject {
namespace session {
  
  class Fork;
  class Clip;
  
}}

namespace asset{
  
  class Pipe;
  class ProcPatt;
  class Timeline;
  class Sequence;
  
  namespace meta {
    class TimeGrid;
  }
  
  
  namespace idi  {
    
    using lib::Symbol;
    
    
    
    /* ==== structural asset ID scheme ==== */  /////////////////////////////////////////////TICKET #565 : better organisation of this naming scheme
    
    template<class STRU>
    struct StructTraits
      {
        static Symbol namePrefix();
        static Symbol catFolder();
        static Symbol idSymbol();   ///< used as type predicate symbol
      };
    
    
    template<> struct StructTraits<mobject::session::Fork>
      {
        static Symbol namePrefix() { return "fork"; }
        static Symbol catFolder()  { return "forks";}
        static Symbol idSymbol()   { return "fork"; }
      };
    template<> struct StructTraits<mobject::session::Clip>
      {
        static Symbol namePrefix() { return "clip"; }
        static Symbol catFolder()  { return "clips";}
        static Symbol idSymbol()   { return "clip"; }
      };
    template<> struct StructTraits<Pipe>
      {
        static Symbol namePrefix() { return "pipe"; }
        static Symbol catFolder()  { return "pipes";}
        static Symbol idSymbol()   { return "pipe"; }
      };
    template<> struct StructTraits<proc::StreamType>
      {
        static Symbol namePrefix() { return "type"; }
        static Symbol catFolder()  { return "stream-types";}
        static Symbol idSymbol()   { return "stype"; }
      };
    template<> struct StructTraits<const ProcPatt>
      {
        static Symbol namePrefix() { return "patt";           }
        static Symbol catFolder()  { return "build-templates";}
        static Symbol idSymbol()   { return "procPatt";       }
      };
    template<> struct StructTraits<Timeline>
      {
        static Symbol namePrefix() { return "tL";       }
        static Symbol catFolder()  { return "timelines";}
        static Symbol idSymbol()   { return "timeline"; }
      };
    template<> struct StructTraits<Sequence>
      {
        static Symbol namePrefix() { return "seq";      }
        static Symbol catFolder()  { return "sequences";}
        static Symbol idSymbol()   { return "sequence"; }
      };
    template<> struct StructTraits<meta::TimeGrid>
      {
        static Symbol namePrefix() { return "grid";     }
        static Symbol catFolder()  { return "time-scales";}
        static Symbol idSymbol()   { return "timeGrid"; }
      };
    
    
    /* catch-all defaults */
    template<class X>
    Symbol StructTraits<X>::idSymbol() { return typeid(X).name(); } ////////////////////TICKET #583   this default works but is ugly
    template<class X>
    Symbol StructTraits<X>::catFolder(){ return idSymbol(); }
    template<class X>
    Symbol StructTraits<X>::namePrefix(){return idSymbol(); }
    
    
    
    /** generate an Asset identification tuple
     *  based on this EntryID's symbolic ID and type information.
     *  The remaining fields are filled in with hardwired defaults.
     * @note there is a twist, as this asset identity tuple generates
     *       a different hash as the EntryID. It would be desirable
     *       to make those two addressing systems interchangeable.      /////////////TICKET #739
     */
    template<typename TY>
    inline Asset::Ident
    getAssetIdent (lib::idi::EntryID<TY> const& entryID)
    {
      Category cat (STRUCT, idi::StructTraits<TY>::catFolder());
      return Asset::Ident (entryID.getSym(), cat);
    }
    
    
    
}}} // namespace asset::idi
#endif