source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "grace-iterator.hh"
+
#include "translator-group.hh"
-#include "debug.hh"
+#include "warn.hh"
#include "sequential-music-iterator.hh"
#include "music-list.hh"
-#include "request-chord-iterator.hh"
-
-
-void
-Sequential_music_iterator::do_print() const
-{
- if (iter_p_)
- iter_p_->print();
-}
-
-Sequential_music_iterator::Sequential_music_iterator ()
-{
- cursor_ = 0;
- here_mom_ = 0;
- iter_p_ =0;
- per_elt_b_ = false;
-}
-
-void
-Sequential_music_iterator::construct_children()
-{
- cursor_ = dynamic_cast<Music_sequence const*> (music_l_)->music_p_list_p_->head_;
-
- while (cursor_)
- {
- start_next_element();
- if (!iter_p_->ok())
- {
- leave_element();
- }
- else
- {
- set_sequential_music_translator();
- break;
- }
- }
-}
-
-void
-Sequential_music_iterator::leave_element()
-{
- delete iter_p_;
- iter_p_ =0;
- Moment elt_time = cursor_->car_->length_mom ();
- here_mom_ += elt_time;
- cursor_ =cursor_->next_;
-}
-
-void
-Sequential_music_iterator::start_next_element()
-{
- assert (!iter_p_);
- iter_p_ = get_iterator_p (cursor_->car_);
-}
-
-void
-Sequential_music_iterator::set_sequential_music_translator()
-{
- if (iter_p_->report_to_l()->depth_i () > report_to_l ()->depth_i ()
- && ! dynamic_cast<Grace_iterator*> (iter_p_)) // UGH.!
- set_translator (iter_p_->report_to_l());
-}
-
-Sequential_music_iterator::~Sequential_music_iterator()
-{
- assert (! iter_p_);
-}
-
-
-
+/*
+ move to context of child iterator if it is deeper down in the
+ hierarchy.
+ */
void
-Sequential_music_iterator::do_process_and_next (Moment until)
+Sequential_music_iterator::descend_to_child ()
{
- if (!iter_p_)
- return;
+ Translator_group * child_report = child_report = iter_->report_to ();
+ Translator_group * me_report = report_to ();
- while (1)
+ Translator_group * c = child_report;
+ while (c && c != me_report)
{
- Moment local_until = until - here_mom_;
- while (iter_p_->ok())
- {
- Moment here = iter_p_->next_moment();
- if (here != local_until)
- goto loopexit;
-
- iter_p_->process_and_next (local_until);
- }
-
- if (!iter_p_->ok())
- {
- leave_element();
-
- if (cursor_)
- {
- start_next_element();
- set_sequential_music_translator();
-
- if (per_elt_b_)
- goto loopexit; // ugh.
- }
- else
- {
- goto loopexit;
- }
- }
+ c= c->daddy_trans_;
}
-
-loopexit:
-
- Music_iterator::do_process_and_next (until);
+
+ if (c == me_report)
+ set_translator (child_report);
}
-Moment
-Sequential_music_iterator::next_moment() const
-{
- return iter_p_->next_moment() + here_mom_;
-}
-Music*
-Sequential_music_iterator::next_music_l ()
-{
- if (!iter_p_)
- return 0;
+IMPLEMENT_CTOR_CALLBACK (Sequential_music_iterator);
- while (1)
- {
- if (Music* m = iter_p_->next_music_l ())
- {
- return m;
- }
- else
- {
- // urg FIXME: sequential children should be iterated to finish
- if (dynamic_cast<Request_chord_iterator*> (iter_p_))
- delete iter_p_;
- iter_p_ = 0;
- leave_element ();
-
- if (cursor_)
- {
- start_next_element ();
- set_sequential_music_translator ();
- }
- else
- {
- delete iter_p_;
- iter_p_ = 0;
- return 0;
- }
- }
- }
-}
-
-bool
-Sequential_music_iterator::ok() const
+SCM
+Sequential_music_iterator::get_music_list()const
{
- return iter_p_;
+ return dynamic_cast<Music_sequence const*> (get_music ())->music_list ();
}
-