lily/performer-group-performer.cc

   1 /*
   2   performer-group-performer.cc -- implement Performer_group_performer
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1996--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7                Jan Nieuwenhuizen <janneke@gnu.org>
   8  */
   9
  10 #include "performer-group-performer.hh"
  11
  12 #include "audio-element.hh"
  13 #include "debug.hh"
  14
  15
  16 ADD_THIS_TRANSLATOR(Performer_group_performer);
  17
  18
  19 void
  20 Performer_group_performer::announce_element (Audio_element_info info)
  21 {
  22   announce_info_arr_.push (info);
  23   Performer::announce_element (info);
  24 }
  25
  26
  27
  28 void
  29 Performer_group_performer::create_audio_elements ()
  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       Performer * eng = dynamic_cast<Performer*> (t);
  35       if (eng)
  36         eng->create_audio_elements ();
  37     }
  38 }
  39
  40 void
  41 Performer_group_performer::acknowledge_audio_elements ()
  42 {
  43   for (int j =0; j < announce_info_arr_.size(); j++)
  44     {
  45       Audio_element_info info = announce_info_arr_[j];
  46
  47       for (SCM p = simple_trans_list_; gh_pair_p (p); p = gh_cdr (p))
  48         {
  49           Translator * t = unsmob_translator (gh_car (p));
  50           Performer * eng = dynamic_cast<Performer*> (t);
  51           if (eng && eng!= info.origin_trans_l_)
  52             eng->acknowledge_audio_element (info);
  53         }
  54     }
  55 }
  56
  57 void
  58 Performer_group_performer::do_announces()
  59 {
  60   for (SCM p = trans_group_list_; gh_pair_p (p); p =gh_cdr ( p))
  61     {
  62       Translator * t = unsmob_translator (gh_car (p));
  63       dynamic_cast<Performer_group_performer*> (t)->do_announces ();
  64     }
  65
  66
  67   create_audio_elements ();
  68
  69   while (announce_info_arr_.size ())
  70     {
  71       acknowledge_audio_elements ();
  72       announce_info_arr_.clear ();
  73       create_audio_elements ();
  74     }
  75
  76   if (announce_info_arr_.size ())
  77     {
  78       printf ("do_announces: elt: %s\n",
  79               classname (announce_info_arr_[0].elem_l_));
  80       announce_info_arr_.clear ();
  81     }
  82 }
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