us2400/fader.h

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/*
 * Copyright (C) 2017 Ben Loftis <ben@harrisonconsoles.com>
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef __ardour_us2400_control_protocol_fader_h__
#define __ardour_us2400_control_protocol_fader_h__
 
#include "controls.h"
 
namespace ArdourSurface {
 
namespace US2400 {
 
class Fader : public Control
{
  public:
 
        Fader (int id, std::string name, Group & group)
                : Control (id, name, group)
                , position (0.0)
                , last_update_position (-1)
                , llast_update_position (-1)
        {
        }
 
        MidiByteArray set_position (float);
        MidiByteArray zero() { return set_position (0.0); }
 
        MidiByteArray update_message ();
 
        static Control* factory (Surface&, int id, const char*, Group&);
 
        void mark_dirty() { last_update_position = llast_update_position = -1; }
 
  private:
        float position;
        int   last_update_position;
        int   llast_update_position;
};
 
}
}
 
#endif