2 voice-iter.cc -- implement Voice_iterator
4 source file of the GNU LilyPond music typesetter
6 (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
9 #include "translator-group.hh"
11 #include "voice-iterator.hh"
12 #include "music-list.hh"
16 Voice_iterator::do_print() const
22 Voice_iterator::Voice_iterator (Voice const*v)
23 : PCursor<Music*> (v->music_p_list_)
25 here_mom_ = v->offset_mom_;
31 Voice_iterator::construct_children()
33 while (PCursor<Music*>::ok())
42 set_voice_translator();
49 Voice_iterator::leave_element()
53 MInterval elt_time = ptr()->time_int ();
54 if (!elt_time.empty_b())
55 here_mom_ += elt_time.length();
56 PCursor<Music*>::next();
60 Voice_iterator::start_next_element()
63 iter_p_ = get_iterator_p (ptr());
67 Voice_iterator::set_voice_translator()
69 if (iter_p_->report_to_l()->depth_i () > report_to_l ()->depth_i ())
70 set_translator (iter_p_->report_to_l());
73 Voice_iterator::~Voice_iterator()
79 IMPLEMENT_IS_TYPE_B1(Voice_iterator,Music_iterator);
82 Voice_iterator::process_and_next (Moment until)
86 Moment local_until = until - here_mom_;
89 Moment here = iter_p_->next_moment();
90 if (here != local_until)
93 iter_p_->process_and_next (local_until);
100 if (PCursor<Music*>::ok())
102 start_next_element();
103 set_voice_translator();
114 Music_iterator::process_and_next (until);
118 Voice_iterator::next_moment() const
120 return iter_p_->next_moment() + here_mom_;
124 Voice_iterator::ok() const