lily/note-name-engraver.cc

   1 /*
   2   note-name-engraver.cc -- implement Note_name_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1999--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "engraver.hh"
  10 #include "item.hh"
  11 #include "pitch.hh"
  12 #include "stream-event.hh"
  13
  14 #include "translator.icc"
  15
  16 class Note_name_engraver : public Engraver
  17 {
  18 public:
  19   TRANSLATOR_DECLARATIONS (Note_name_engraver);
  20
  21   vector<Stream_event*> events_;
  22   vector<Item*> texts_;
  23   DECLARE_TRANSLATOR_LISTENER (note);
  24   void process_music ();
  25   void stop_translation_timestep ();
  26 };
  27
  28 IMPLEMENT_TRANSLATOR_LISTENER (Note_name_engraver, note);
  29 void
  30 Note_name_engraver::listen_note (Stream_event *ev)
  31 {
  32   events_.push_back (ev);
  33 }
  34
  35 void
  36 Note_name_engraver::process_music ()
  37 {
  38   string s;
  39   for (vsize i = 0; i < events_.size (); i++)
  40     {
  41       if (i)
  42         s += " ";
  43       Pitch p = *unsmob_pitch (events_[i]->get_property ("pitch"));
  44
  45       if (!to_boolean (get_property ("printOctaveNames")))
  46         p = Pitch (-1, p.get_notename (), p.get_alteration ());
  47
  48       s += p.to_string ();
  49     }
  50   if (s.length ())
  51     {
  52       Item *t = make_item ("NoteName", events_[0]->self_scm ());
  53       t->set_property ("text", ly_string2scm (s));
  54       texts_.push_back (t);
  55     }
  56 }
  57
  58 void
  59 Note_name_engraver::stop_translation_timestep ()
  60 {
  61   texts_.clear ();
  62   events_.clear ();
  63 }
  64
  65 Note_name_engraver::Note_name_engraver ()
  66 {
  67 }
  68
  69 ADD_TRANSLATOR (Note_name_engraver,
  70                 /* doc */
  71                 "Print pitches as words.",
  72
  73                 /* create */
  74                 "NoteName ",
  75
  76                 /* read */
  77                 "printOctaveNames ",
  78
  79                 /* write */
  80                 ""
  81                 );