diff options
Diffstat (limited to 'libs/ardour/ardour/gain_control.h')
| -rw-r--r-- | libs/ardour/ardour/gain_control.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/libs/ardour/ardour/gain_control.h b/libs/ardour/ardour/gain_control.h index fa43b5d39f..9a79a8046f 100644 --- a/libs/ardour/ardour/gain_control.h +++ b/libs/ardour/ardour/gain_control.h @@ -20,7 +20,10 @@ #define __ardour_gain_control_h__ #include <string> +#include <list> + #include <boost/shared_ptr.hpp> +#include <glibmm/threads.h> #include "pbd/controllable.h" @@ -51,12 +54,18 @@ class LIBARDOUR_API GainControl : public AutomationControl { double lower_db; double range_db; - boost::shared_ptr<GainControl> master() const { return _master; } - void set_master (boost::shared_ptr<GainControl>); + 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); - boost::shared_ptr<GainControl> _master; + gain_t get_master_gain () const; + + mutable Glib::Threads::Mutex master_lock; + + typedef std::list<boost::shared_ptr<GainControl> > Masters; + Masters _masters; }; } /* namespace */ |