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livetrax/libs/surfaces/mackie/fader.h

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/*
* Copyright (C) 2006-2007 John Anderson
* Copyright (C) 2012-2015 Paul Davis <paul@linuxaudiosystems.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_mackie_control_protocol_fader_h__
#define __ardour_mackie_control_protocol_fader_h__
#include "controls.h"
namespace ArdourSurface { namespace MACKIE_NAMESPACE {
class Fader : public Control
{
public:
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Fader (int id, std::string name, Group & group)
: Control (id, name, group)
, position (0.0)
, last_update_position (-1)
{
}
MidiByteArray set_position (float);
MidiByteArray zero() { return set_position (0.0); }
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MidiByteArray update_message ();
static Control* factory (Surface&, int id, const char*, Group&);
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private:
float position;
int last_update_position;
};
}
}
#endif