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