2 Copyright (C) 2006-2016 Paul Davis
4 This program is free software; you can redistribute it and/or modify it
5 under the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2 of the License, or (at your option)
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation, Inc.,
16 675 Mass Ave, Cambridge, MA 02139, USA.
19 #ifndef __ardour_gain_control_h__
20 #define __ardour_gain_control_h__
25 #include <boost/shared_ptr.hpp>
26 #include <glibmm/threads.h>
28 #include "pbd/controllable.h"
30 #include "evoral/Parameter.hpp"
32 #include "ardour/automation_control.h"
33 #include "ardour/libardour_visibility.h"
39 class LIBARDOUR_API GainControl : public AutomationControl {
41 GainControl (Session& session, const Evoral::Parameter ¶m,
42 boost::shared_ptr<AutomationList> al = boost::shared_ptr<AutomationList>());
44 void set_value (double val, PBD::Controllable::GroupControlDisposition group_override);
45 void set_value_unchecked (double);
47 double internal_to_interface (double) const;
48 double interface_to_internal (double) const;
49 double internal_to_user (double) const;
50 double user_to_internal (double) const;
51 std::string get_user_string () const;
56 gain_t get_master_gain () const;
57 void add_master (boost::shared_ptr<GainControl>);
58 void remove_master (boost::shared_ptr<GainControl>);
59 void clear_masters ();
60 bool slaved_to (boost::shared_ptr<GainControl>) const;
63 void _set_value (double val, PBD::Controllable::GroupControlDisposition group_override);
65 mutable Glib::Threads::Mutex master_lock;
67 typedef std::list<boost::shared_ptr<GainControl> > Masters;
70 gain_t get_master_gain_locked () const;
75 #endif /* __ardour_gain_control_h__ */