midi_scene_change.h

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/*
    Copyright (C) 2014 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 __libardour_midi_scene_change_h__
#define __libardour_midi_scene_change_h__

#include "evoral/PatchChange.hpp"

#include "pbd/signals.h"

#include "ardour/scene_change.h"

namespace ARDOUR
{

class MidiPort;

class MIDISceneChange : public SceneChange
{
  public:
        MIDISceneChange (int channel, int bank = -1, int program = -1);
        MIDISceneChange (const XMLNode&, int version);
        ~MIDISceneChange ();

        void set_channel (int channel);
        void set_program (int program);
        void set_bank (int bank);

        int channel () const { return _channel; }
        int program () const { return _program; }
        int bank () const { return _bank; }

        size_t get_bank_msb_message (uint8_t* buf, size_t size) const;
        size_t get_bank_lsb_message (uint8_t* buf, size_t size) const;
        size_t get_program_message (uint8_t* buf, size_t size) const;

        XMLNode& get_state();
        int set_state (const XMLNode&, int version);

        bool operator==(const MIDISceneChange& other) const;

  private:
        int _bank;
        int _program;
        uint8_t _channel;
};

} /* namespace */
        

#endif /* __libardour_scene_change_h__ */