lily/dot-column-engraver.cc

   1 /*
   2   dot-column-engraver.cc -- implement Dot_column_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1998--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "rhythmic-head.hh"
  10 #include "dot-column.hh"
  11 #include "side-position-interface.hh"
  12 #include "engraver.hh"
  13 #include "translator.icc"
  14 #include "item.hh"
  15
  16 class Dot_column_engraver : public Engraver
  17 {
  18   Grob *dotcol_;
  19 public:
  20   TRANSLATOR_DECLARATIONS (Dot_column_engraver);
  21
  22 protected:
  23
  24   DECLARE_ACKNOWLEDGER (rhythmic_head);
  25
  26   void stop_translation_timestep ();
  27 };
  28
  29 Dot_column_engraver::Dot_column_engraver ()
  30 {
  31   dotcol_ = 0;
  32 }
  33
  34 void
  35 Dot_column_engraver::stop_translation_timestep ()
  36 {
  37   dotcol_ = 0;
  38 }
  39
  40 void
  41 Dot_column_engraver::acknowledge_rhythmic_head (Grob_info info)
  42 {
  43   Grob *d = unsmob_grob (info.grob ()->get_object ("dot"));
  44   if (d)
  45     {
  46       if (!dotcol_)
  47         dotcol_ = make_item ("DotColumn", SCM_EOL);
  48
  49       Dot_column::add_head (dotcol_, info.grob ());
  50     }
  51 }
  52
  53
  54 ADD_ACKNOWLEDGER (Dot_column_engraver, rhythmic_head);
  55 ADD_TRANSLATOR (Dot_column_engraver,
  56                 /* doc */
  57                 "Engrave dots on dotted notes shifted to the right of the"
  58                 " note.  If omitted, then dots appear on top of the notes.",
  59
  60                 /* create */
  61                 "DotColumn ",
  62
  63                 /* read */
  64                 "",
  65
  66                 /* write */
  67                 ""
  68                 );