lily/change-iterator.cc

   1 /*
   2   change-iterator.cc -- implement
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "change-iterator.hh"
  10 #include "translator-group.hh"
  11 #include "change-translator.hh"
  12
  13 Change_iterator::Change_iterator (Change_translator *change_l)
  14 {
  15   change_l_ = change_l;
  16 }
  17
  18 /*
  19   move to construct_children ?
  20  */
  21 void
  22 Change_iterator::process_and_next (Moment m)
  23 {
  24   Translator_group * current = report_to_l ();
  25   Translator_group * last = 0;
  26   while  (current && current->type_str_ != change_l_->change_to_type_str_)
  27     {
  28       last = current;
  29       current = current->daddy_trans_l_;
  30     }
  31   if (current)
  32     {
  33       Translator_group * dest =
  34         report_to_l ()->find_create_translator_l (change_l_->change_to_type_str_,
  35                                                   change_l_->change_to_id_str_);
  36       current->remove_translator_p (last);
  37       dest->add (last);
  38     }
  39
  40   Music_iterator::process_and_next (m);
  41 }
  42
  43 IMPLEMENT_IS_TYPE_B1 (Change_iterator, Music_iterator);