lily/engraver-group-engraver.cc

   1 /*
   2   engravergroup.cc -- implement Engraver_group_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "flower-proto.hh"
  10 #include "engraver-group-engraver.hh"
  11 #include "engraver.hh"
  12 #include "debug.hh"
  13 #include "paper-score.hh"
  14 #include "grob.hh"
  15
  16
  17 ADD_THIS_TRANSLATOR (Engraver_group_engraver);
  18
  19 void
  20 Engraver_group_engraver::announce_grob (Grob_info info)
  21 {
  22   announce_info_arr_.push (info);
  23   Engraver::announce_grob (info);
  24 }
  25
  26
  27 void
  28 Engraver_group_engraver::create_grobs ()
  29 {
  30
  31   for (SCM p = simple_trans_list_; gh_pair_p (p); p = gh_cdr (p))
  32     {
  33       Translator * t = unsmob_translator (gh_car (p));
  34       Engraver * eng = dynamic_cast<Engraver*> (t);
  35       if (eng)
  36         eng->create_grobs ();
  37     }
  38 }
  39
  40 void
  41 Engraver_group_engraver::acknowledge_grobs ()
  42 {
  43   for (int j =0; j < announce_info_arr_.size (); j++)
  44     {
  45       Grob_info info = announce_info_arr_[j];
  46       for (SCM p = simple_trans_list_; gh_pair_p (p); p = gh_cdr (p))
  47         {
  48           Translator * t = unsmob_translator (gh_car (p));
  49           Engraver * eng = dynamic_cast<Engraver*> (t);
  50           if (eng && eng!= info.origin_trans_l_)
  51             eng->acknowledge_grob (info);
  52         }
  53     }
  54 }
  55
  56 void
  57 Engraver_group_engraver::do_announces ()
  58 {
  59   for (SCM p = trans_group_list_; gh_pair_p (p); p =gh_cdr (p))
  60     {
  61       Translator * t = unsmob_translator (gh_car (p));
  62       dynamic_cast<Engraver_group_engraver*> (t)->do_announces ();
  63     }
  64
  65   create_grobs ();
  66
  67   while (announce_info_arr_.size ())
  68     {
  69       acknowledge_grobs ();
  70       announce_info_arr_.clear ();
  71       create_grobs ();
  72     }
  73 }
  74
  75 #include <iostream.h>
  76
  77 /*
  78   order is : top to bottom (as opposed to do_announces)
  79  */
  80 void
  81 Engraver_group_engraver::process_music ()
  82 {
  83    for (SCM p = simple_trans_list_; gh_pair_p (p); p =gh_cdr (p))
  84     {
  85       Translator * t = unsmob_translator (gh_car (p));
  86       Engraver * eng = dynamic_cast<Engraver*> (t);
  87
  88       if (eng)
  89         eng->process_music ();
  90     }
  91    for (SCM p = trans_group_list_; gh_pair_p (p); p =gh_cdr (p))
  92     {
  93       Translator * t = unsmob_translator (gh_car (p));
  94       Engraver*eng = dynamic_cast<Engraver*> (t);
  95       if (eng)
  96         eng->process_music ();
  97     }
  98 }
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