lily/grid-point-engraver.cc

   1 /*
   2   grid-line-engraver.cc --  implement Grid_point_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2005--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "engraver.hh"
  10 #include "item.hh"
  11 #include "moment.hh"
  12
  13 #include "translator.icc"
  14
  15 class Grid_point_engraver : public Engraver
  16 {
  17 public:
  18   TRANSLATOR_DECLARATIONS (Grid_point_engraver);
  19 protected:
  20   void process_music ();
  21 };
  22
  23 void
  24 Grid_point_engraver::process_music ()
  25 {
  26   SCM grid_interval = get_property ("gridInterval");
  27   if (Moment *mom = unsmob_moment (grid_interval))
  28     {
  29       Moment now = now_mom ();
  30
  31       if (!now.main_part_.mod_rat (mom->main_part_))
  32         make_item ("GridPoint", SCM_EOL);
  33     }
  34 }
  35
  36 Grid_point_engraver::Grid_point_engraver ()
  37 {
  38 }
  39
  40 ADD_TRANSLATOR (Grid_point_engraver,
  41                 /* doc */
  42                 "Generate grid points.",
  43
  44                 /* create */
  45                 "GridPoint ",
  46
  47                 /* read */
  48                 "gridInterval ",
  49
  50                 /* write */
  51                 ""
  52                 );
  53