note_fixer.h

Go to the documentation of this file.

/*
    Copyright (C) 2015 Paul Davis
    Author: David Robillard

    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_note_fixer_h__
#define __ardour_note_fixer_h__

#include <list>

#include <boost/utility.hpp>

#include "ardour/midi_model.h"
#include "ardour/types.h"
#include "evoral/Beats.hpp"
#include "evoral/Note.hpp"

namespace Evoral { template<typename Time> class EventSink; }

namespace ARDOUR {

class BeatsFramesConverter;
class MidiStateTracker;
class TempoMap;

class NoteFixer : public boost::noncopyable
{
public:
        typedef Evoral::Note<Evoral::Beats> Note;

        ~NoteFixer();

        void clear();

        void prepare(TempoMap&                          tempo_map,
                     const MidiModel::NoteDiffCommand*  cmd,
                     framepos_t                         origin,
                     framepos_t                         pos,
                     std::set< boost::weak_ptr<Note> >& active_notes);

        void emit(Evoral::EventSink<framepos_t>& dst,
                  framepos_t                     pos,
                  MidiStateTracker&              tracker);

private:
        typedef Evoral::Event<framepos_t> Event;
        typedef std::list<Event*>         Events;

        Event* copy_event(framepos_t time, const Evoral::Event<Evoral::Beats>& ev);

        bool note_is_active(const BeatsFramesConverter& converter,
                            boost::shared_ptr<Note>     note,
                            framepos_t                  pos);

        Events _events;
};

} /* namespace ARDOUR */

#endif  /* __ardour_note_fixer_h__ */