lily/engraver.cc

   1 /*
   2   engraver.cc -- implement Engraver
   3
   4   Sourcefile of GNU LilyPond music type setter
   5
   6   (c)  1997--2002 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 void
  24 Engraver::announce_grob (Grob* e, SCM cause)
  25 {
  26   /*
  27     TODO: junk grob-info, and make a cause grob-property to store
  28     `causes' generically.
  29   */
  30
  31   if (unsmob_music (cause) || unsmob_grob (cause))
  32     e->set_grob_property ("cause", cause);
  33
  34   Grob_info i (e);
  35   if (!i.origin_trans_)
  36     i.origin_trans_ = this;
  37   get_daddy_grav ()->announce_grob (i);
  38 }
  39
  40
  41
  42 void
  43 Engraver::typeset_grob (Grob*p)
  44 {
  45   get_daddy_grav ()->typeset_grob (p);
  46 }
  47
  48
  49 Engraver_group_engraver*
  50 Engraver::get_daddy_grav () const
  51 {
  52   return (daddy_trans_)
  53        ? dynamic_cast<Engraver_group_engraver *> (daddy_trans_)
  54        : 0;
  55 }
  56
  57 void
  58 Engraver::process_music ()
  59 {
  60
  61 }
  62
  63 Engraver::Engraver()
  64 {
  65 }
  66
  67
  68 Score_engraver*
  69 Engraver::top_engraver () const
  70 {
  71   /*
  72     ugh.
  73    */
  74   if (dynamic_cast<Score_engraver*>((Engraver*)this))
  75     return dynamic_cast<Score_engraver*> ((Engraver*)this);
  76
  77   if (daddy_trans_)
  78     return dynamic_cast<Engraver*> (daddy_trans_)->top_engraver ();
  79
  80   programming_error ("No score engraver!");
  81   return 0;
  82 }
  83
  84 ENTER_DESCRIPTION(Engraver,
  85                    "", "", "", "", "");
  86