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/*
Copyright (C) 2006-2016 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_gain_control_h__
#define __ardour_gain_control_h__
#include <string>
#include <list>
#include <boost/shared_ptr.hpp>
#include <glibmm/threads.h>
#include "pbd/controllable.h"
#include "evoral/Parameter.hpp"
#include "ardour/automation_control.h"
#include "ardour/libardour_visibility.h"
namespace ARDOUR {
class Session;
class LIBARDOUR_API GainControl : public AutomationControl {
public:
GainControl (Session& session, const Evoral::Parameter ¶m,
boost::shared_ptr<AutomationList> al = boost::shared_ptr<AutomationList>());
void set_value (double val, PBD::Controllable::GroupControlDisposition group_override);
void set_value_unchecked (double);
double get_value () const;
double internal_to_interface (double) const;
double interface_to_internal (double) const;
double internal_to_user (double) const;
double user_to_internal (double) const;
std::string get_user_string () const;
double lower_db;
double range_db;
void add_master (boost::shared_ptr<GainControl>);
void remove_master (boost::shared_ptr<GainControl>);
void clear_masters ();
private:
void _set_value (double val, PBD::Controllable::GroupControlDisposition group_override);
gain_t get_master_gain () const;
mutable Glib::Threads::Mutex master_lock;
typedef std::list<boost::shared_ptr<GainControl> > Masters;
Masters _masters;
};
} /* namespace */
#endif /* __ardour_gain_control_h__ */
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