lily/voice-devnull-engraver.cc

   1 /*
   2   voice-devnull-engraver.cc -- implement Voice_devnull_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2000 Jan Nieuwenhuizen <janneke@gnu.org>
   7 */
   8
   9 #include "engraver.hh"
  10 #include "item.hh"
  11 #include "musical-request.hh"
  12 #include "translator-group.hh"
  13
  14 class Voice_devnull_engraver : public Engraver
  15 {
  16 public:
  17   VIRTUAL_COPY_CONS (Translator);
  18
  19 protected:
  20   virtual void acknowledge_element (Score_element_info);
  21 };
  22
  23 ADD_THIS_TRANSLATOR (Voice_devnull_engraver);
  24
  25 void
  26 Voice_devnull_engraver::acknowledge_element (Score_element_info i)
  27 {
  28   if (daddy_trans_l_->id_str_ == "two"
  29       && (to_boolean (get_property ("unison"))
  30           || to_boolean (get_property ("unisilence"))))
  31     {
  32       static char const *junk[] = {
  33         //      "beam-interface",
  34         "slur-interface",
  35         "tie-interface",
  36         "text-item-interface",
  37         "text-script-interface",
  38         "dynamic-interface",
  39         "crescendo-interface",
  40         0
  41       };
  42       for (char const **p = junk; *p; *p++)
  43         {
  44           if (i.elem_l_->has_interface (ly_symbol2scm (*p)))
  45             {
  46               i.elem_l_->suicide ();
  47               return;
  48             }
  49         }
  50     }
  51 }