lily/engraver.cc

   1 /*
   2   engraver.cc -- implement Engraver
   3
   4   Sourcefile of GNU LilyPond music type setter
   5
   6   (c)  1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "music.hh"
  10 #include "engraver.hh"
  11 #include "engraver-group-engraver.hh"
  12 #include "grob.hh"
  13 #include "main.hh"
  14 #include "score-engraver.hh"
  15 #include "warn.hh"
  16
  17 void
  18 Engraver::announce_grob (Grob_info inf)
  19 {
  20   get_daddy_grav ()->announce_grob (inf);
  21 }
  22
  23 /*
  24   CAUSE is the object (typically a Music object)  that
  25   was the reason for making E.
  26  */
  27 void
  28 Engraver::announce_grob (Grob* e, SCM cause)
  29 {
  30   /*
  31     TODO: junk grob-info, and make a cause grob-property to store
  32     `causes' generically.
  33   */
  34
  35   if (unsmob_music (cause) || unsmob_grob (cause))
  36     e->set_grob_property ("cause", cause);
  37
  38   Grob_info i (e);
  39   if (!i.origin_trans_)
  40     i.origin_trans_ = this;
  41   get_daddy_grav ()->announce_grob (i);
  42 }
  43
  44
  45
  46 void
  47 Engraver::typeset_grob (Grob*p)
  48 {
  49   get_daddy_grav ()->typeset_grob (p);
  50 }
  51
  52
  53 Engraver_group_engraver*
  54 Engraver::get_daddy_grav () const
  55 {
  56   return (daddy_trans_)
  57        ? dynamic_cast<Engraver_group_engraver *> (daddy_trans_)
  58        : 0;
  59 }
  60
  61 void
  62 Engraver::process_music ()
  63 {
  64
  65 }
  66
  67 Engraver::Engraver()
  68 {
  69 }
  70
  71
  72 Score_engraver*
  73 Engraver::top_engraver () const
  74 {
  75   return dynamic_cast<Score_engraver*> (top_translator());
  76 }
  77
  78 ENTER_DESCRIPTION(Engraver,
  79                    "", "",
  80                   "",
  81                   "", "", "");
  82