lily/include/performer.hh

   1 /*
   2   performer.hh -- declare Performer
   3
   4   (c) 1996,  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   5                  Jan Nieuwenhuizen <janneke@gnu.org>
   6  */
   7
   8 #ifndef PERFORMER_HH
   9 #define PERFORMER_HH
  10
  11 #include "audio-element-info.hh"
  12 #include "array.hh"
  13 #include "request.hh"
  14 #include "score-element-info.hh"
  15 #include "staff-info.hh"
  16 #include "translator.hh"
  17
  18 /**
  19   Convert a music definition into a audio representation.
  20   A baseclass
  21  */
  22 class Performer : public virtual Translator
  23 {
  24 public:
  25   VIRTUAL_COPY_CONS(Translator);
  26   friend class Performer_group_performer;
  27   Performer_group_performer* daddy_perf_l() const;
  28
  29 protected:
  30   virtual void announce_element (Audio_element_info);
  31   virtual void acknowledge_element (Audio_element_info);
  32   virtual void process_acknowledged ();
  33   virtual int get_tempo_i() const;
  34   virtual void play_element (Audio_element * elem_p );
  35 };
  36
  37
  38 #endif // PERFORMER_HH
  39