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--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "proto.hh"
  10 #include "engraver-group-engraver.hh"
  11 #include "engraver.hh"
  12 #include "debug.hh"
  13 #include "paper-score.hh"
  14 #include "score-element.hh"
  15
  16
  17 ADD_THIS_TRANSLATOR(Engraver_group_engraver);
  18
  19 void
  20 Engraver_group_engraver::announce_element (Score_element_info info)
  21 {
  22   announce_info_arr_.push (info);
  23   Engraver::announce_element (info);
  24 }
  25
  26 void
  27 Engraver_group_engraver::do_announces()
  28 {
  29   for (Cons<Translator> *p = trans_p_list_.head_; p; p = p->next_)
  30     {
  31       if (Engraver_group_engraver *trg =  dynamic_cast <Engraver_group_engraver *> (p->car_))
  32         trg->do_announces ();
  33     }
  34
  35   Request dummy_req;
  36
  37   while (announce_info_arr_.size ())
  38     {
  39       for (int j =0; j < announce_info_arr_.size(); j++)
  40         {
  41           Score_element_info info = announce_info_arr_[j];
  42
  43           if (!info.req_l_)
  44             info.req_l_ = &dummy_req;
  45
  46           for (Cons<Translator> *p = trans_p_list_.head_; p; p = p->next_)
  47             {
  48               if (!dynamic_cast <Engraver_group_engraver *> (p->car_))
  49                 {
  50                   Engraver * eng = dynamic_cast<Engraver*> (p->car_);
  51                   if (eng && eng!= info.origin_trans_l_arr (this)[0])
  52                     eng->acknowledge_element (info);
  53                 }
  54             }
  55         }
  56
  57       announce_info_arr_.clear ();
  58       for (Cons<Translator> *p = trans_p_list_.head_; p; p = p->next_)
  59         {
  60           if (!dynamic_cast <Engraver_group_engraver *> (p->car_))
  61             {
  62               Engraver * eng = dynamic_cast<Engraver*> (p->car_);
  63               if (eng)
  64                 eng->process_acknowledged ();
  65             }
  66         }
  67     }
  68 }
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