/*
- Sequential_music_iterator.cc -- implement Sequential_music_iterator
+ sequential-music-iterator.cc -- implement Sequential_music_iterator
source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-#include "grace-iterator.hh"
-#include "translator-group.hh"
-#include "debug.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;
-}
-
-void
-Sequential_music_iterator::construct_children()
-{
- cursor_ = dynamic_cast<Music_sequence const*> (music_l_)->music_list ();
-
- while (gh_pair_p (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 = unsmob_music (gh_car (cursor_))->length_mom ();
- here_mom_ += elt_time;
- cursor_ =gh_cdr (cursor_);
-}
-
-void
-Sequential_music_iterator::start_next_element()
-{
- assert (!iter_p_);
- iter_p_ = get_iterator_p (unsmob_music (gh_car (cursor_)));
-}
-
-void
-Sequential_music_iterator::set_sequential_music_translator()
-{
- Translator_group * child_report = child_report = iter_p_->report_to_l ();
- if (dynamic_cast<Grace_iterator*> (iter_p_))
- child_report = child_report->daddy_trans_l_;
-
- if (report_to_l()->depth_i () < child_report->depth_i ())
- set_translator (child_report);
-}
-
-Sequential_music_iterator::~Sequential_music_iterator()
-{
- if (iter_p_)
- {
- if (iter_p_->ok ())
- music_l_->origin ()->warning (_ ("Must stop before this music ends"));
- delete iter_p_;
- iter_p_ = 0;
- }
-}
-
-Music*
-Sequential_music_iterator::get_music ()
-{
- if (ok ())
- return unsmob_music (gh_car (cursor_));
-
- return 0;
-}
-
-bool
-Sequential_music_iterator::next ()
-{
- if (ok ())
- {
- bool b = false;
- if (iter_p_->ok ())
- b = iter_p_->next ();
- if (!b)
- {
- set_sequential_music_translator ();
- leave_element ();
- if (gh_pair_p (cursor_))
- start_next_element ();
- b = ok ();
- }
- return b;
- }
- return false;
-}
-
-/*
- This should use get_music () and next ()
- */
-void
-Sequential_music_iterator::do_process_and_next (Moment until)
-{
- if (ok ())
- {
- while (1)
- {
- Moment local_until = until - here_mom_;
- while (iter_p_->ok ())
- {
- Moment here = iter_p_->next_moment ();
- if (here != local_until)
- return Music_iterator::do_process_and_next (until);
-
- iter_p_->process_and_next (local_until);
- }
-
- if (!iter_p_->ok ())
- {
- set_sequential_music_translator ();
- leave_element ();
-
- if (gh_pair_p (cursor_))
- start_next_element ();
- else
- return Music_iterator::do_process_and_next (until);
- }
- }
- }
-}
-
-Moment
-Sequential_music_iterator::next_moment() const
-{
- return iter_p_->next_moment() + here_mom_;
-}
+#include "context.hh"
+#include "sequential-music-iterator.hh"
+#include "music.hh"
+#include "warn.hh"
+IMPLEMENT_CTOR_CALLBACK (Sequential_music_iterator);
-bool
-Sequential_music_iterator::ok() const
+SCM
+Sequential_music_iterator::get_music_list ()const
{
- return iter_p_;
-}
-
-Music_iterator*
-Sequential_music_iterator::try_music_in_children (Music *m) const
-{
- return iter_p_ ? iter_p_->try_music (m) : 0;
+ return get_music ()->get_property ("elements");
}