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data_type.h

/*
    Copyright (C) 2006 Paul Davis 
    
    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 __ardour_data_type_h__
#define __ardour_data_type_h__

#include <jack/jack.h>

namespace ARDOUR {

class DataType
{
public:
      enum Symbol {
            NIL = 0,
            AUDIO,
            MIDI
      };

      DataType(const Symbol& symbol)
      : _symbol(symbol)
      {}

      /** Construct from a string (Used for loading from XML) */
      DataType(const string& str) {
            if (str == "audio")
                  _symbol = AUDIO;
            //else if (str == "midi")
            //    _symbol = MIDI;
            else
                  _symbol = NIL;
      }

      bool operator==(const Symbol symbol) { return _symbol == symbol; }
      bool operator!=(const Symbol symbol) { return _symbol != symbol; }

      /** Get the Jack type this DataType corresponds to */
      const char* to_jack_type() {
            switch (_symbol) {
                  case AUDIO: return JACK_DEFAULT_AUDIO_TYPE;
                  //case MIDI:  return JACK_DEFAULT_MIDI_TYPE;
                  default:    return "";
            }
      }
      
      /** Inverse of the from-string constructor */
      const char* to_string() {
            switch (_symbol) {
                  case AUDIO: return "audio";
                  //case MIDI:  return "midi";
                  default:    return "unknown"; // reeeally shouldn't ever happen
            }
      }

private:
      Symbol _symbol;
};



} // namespace ARDOUR

#endif // __ardour_data_type_h__


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