lily/note-performer.cc

   1 /*
   2   note-performer.cc -- implement Note_performer
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1996,  1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
   7  */
   8
   9 #include "note-performer.hh"
  10 #include "musical-request.hh"
  11 #include "audio-item.hh"
  12 #include "debug.hh"
  13
  14
  15 ADD_THIS_TRANSLATOR (Note_performer);
  16
  17 Note_performer::Note_performer ()
  18 {
  19 }
  20
  21 void
  22 Note_performer::do_print () const
  23 {
  24 #ifndef NPRINT
  25   if (note_req_l_.size()>0)
  26     for(int i=0;i<note_req_l_.size();i++)
  27       note_req_l_[i]->print ();
  28 #endif
  29 }
  30
  31 void
  32 Note_performer::do_process_requests ()
  33 {
  34   if (note_req_l_.size()>0)
  35     {
  36       int transposing_i = 0;
  37       //urg
  38       Scalar prop = get_property ("transposing", 0);
  39       if (!prop.empty_b () && prop.isnum_b ())
  40         transposing_i = prop;
  41
  42       while(note_req_l_.size()>0)
  43         play (new Audio_note (note_req_l_.pop(), transposing_i));
  44
  45     }
  46 }
  47
  48 bool
  49 Note_performer::do_try_music (Music* req_l)
  50 {
  51   if (Note_req *nr = dynamic_cast <Note_req *> (req_l))
  52     {
  53       note_req_l_.push(nr);
  54       return true;
  55     }
  56   return false;
  57 }