libs/ardour/ardour/proxy_controllable.h

   1 #ifndef __libardour_proxy_controllable_h__
   2 #define __libardour_proxy_controllable_h__
   3
   4 #include <boost/function.hpp>
   5
   6 #include "pbd/controllable.h"
   7
   8 namespace ARDOUR {
   9
  10 /** this class converts a pair of setter/getter functors into a Controllable
  11     so that it can be used like a regular Controllable, bound to MIDI, OSC etc.
  12 */
  13
  14 class ProxyControllable : public PBD::Controllable {
  15   public:
  16     ProxyControllable (const std::string& name, PBD::Controllable::Flag flags,
  17                                  boost::function1<void,double> setter,
  18                                  boost::function0<double> getter)
  19             : PBD::Controllable (name, flags)
  20             , _setter (setter)
  21             , _getter (getter)
  22     {}
  23
  24     void set_value (double v) { _setter (v); }
  25     double get_value () const { return _getter (); }
  26
  27   private:
  28     boost::function1<void,double> _setter;
  29     boost::function0<double> _getter;
  30 };
  31
  32 } // namespace
  33
  34 #endif /* __libardour_proxy_controllable_h__ */