lily/chord-iterator.cc

   1 /*
   2   Simultaneous_music-iter.cc -- implement Simultaneous_music_iterator
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7 */
   8
   9 #include "translator-group.hh"
  10 #include "debug.hh"
  11 #include "chord-iterator.hh"
  12
  13 #include "music-list.hh"
  14
  15
  16 void
  17 Simultaneous_music_iterator::construct_children()
  18 {
  19   int j = 0;
  20   for (PCursor<Music*> i (simultaneous_music_l ()->music_p_list_p_->top());
  21        i.ok(); j++, i++)
  22     {
  23       Music_iterator * mi = get_iterator_p (i.ptr());
  24       if (mi->ok())
  25         {
  26           if  (simultaneous_music_l ()->translator_type_str_.empty_b ())
  27             set_translator (mi->report_to_l()->ancestor_l (0));
  28           children_p_list_.bottom().add (mi);
  29         }
  30       else
  31         delete mi;
  32     }
  33 }
  34
  35
  36 void
  37 Simultaneous_music_iterator::do_print() const
  38 {
  39 #ifndef NPRINT
  40   for (PCursor<Music_iterator*> i (children_p_list_.top()); i.ok (); i++)
  41     {
  42       i->print();
  43     }
  44 #endif
  45 }
  46
  47 void
  48 Simultaneous_music_iterator::do_process_and_next (Moment until)
  49 {
  50   for (PCursor<Music_iterator*> i (children_p_list_.top()); i.ok ();)
  51     {
  52       if  (i->next_moment() == until)
  53         {
  54           i->process_and_next (until);
  55         }
  56       if (!i->ok())
  57         delete i.remove_p();
  58       else
  59         i++;
  60     }
  61   Music_iterator::do_process_and_next (until);
  62 }
  63
  64
  65
  66
  67 Moment
  68 Simultaneous_music_iterator::next_moment() const
  69 {
  70   Moment next;
  71   next.set_infinite (1);
  72   for (PCursor<Music_iterator*> i (children_p_list_.top()); i.ok (); i++)
  73     next = next <? i->next_moment() ;
  74   return next;
  75 }
  76
  77
  78
  79 bool
  80 Simultaneous_music_iterator::ok() const
  81 {
  82   return children_p_list_.size();
  83 }
  84
  85 Simultaneous_music*
  86 Simultaneous_music_iterator::simultaneous_music_l ()const
  87 {
  88   return (  Simultaneous_music *) music_l_;
  89 }