lily/chord-iterator.cc

   1 /*
   2   chord-iter.cc -- implement Chord_iterator
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.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 Chord_iterator::~Chord_iterator()
  17 {
  18 }
  19
  20 Chord_iterator::Chord_iterator (Chord const *chord_C)
  21 {
  22   chord_C_ = chord_C;
  23 }
  24
  25 void
  26 Chord_iterator::construct_children()
  27 {
  28   int j = 0;
  29   for (PCursor<Music*> i (chord_C_->music_p_list_.top());
  30        i.ok(); j++, i++)
  31     {
  32       Music_iterator * mi = get_iterator_p (i.ptr());
  33       if (mi->ok())
  34         {
  35           if  (chord_C_->translator_type_str_.empty_b ())
  36             set_translator (mi->report_to_l()->ancestor_l (chord_C_->multi_level_i_));
  37           children_p_list_.bottom().add (mi);
  38         }
  39       else
  40         delete mi;
  41     }
  42 }
  43 void
  44 Chord_iterator::do_print() const
  45 {
  46 #ifndef NPRINT
  47   for (PCursor<Music_iterator*> i (children_p_list_.top()); i.ok (); i++)
  48     {
  49       i->print();
  50     }
  51 #endif
  52 }
  53
  54 void
  55 Chord_iterator::process_and_next (Moment until)
  56 {
  57   for (PCursor<Music_iterator*> i (children_p_list_.top()); i.ok ();)
  58     {
  59       if  (i->next_moment() == until)
  60         {
  61           i->process_and_next (until);
  62         }
  63       if (!i->ok())
  64         delete i.remove_p();
  65       else
  66         i++;
  67     }
  68   Music_iterator::process_and_next (until);
  69 }
  70
  71
  72 IMPLEMENT_IS_TYPE_B1(Chord_iterator,Music_iterator);
  73
  74 Moment
  75 Chord_iterator::next_moment() const
  76 {
  77   Moment next;
  78   next.set_infinite (1);
  79   for (PCursor<Music_iterator*> i (children_p_list_.top()); i.ok (); i++)
  80     next = next <? i->next_moment() ;
  81   return next;
  82 }
  83
  84
  85
  86 bool
  87 Chord_iterator::ok() const
  88 {
  89   return children_p_list_.size();
  90 }