source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
-/*
- UGH. too many includes.
- */
-#include "debug.hh"
-#include "music-list.hh"
-#include "music-iterator.hh"
-#include "property-iterator.hh"
-#include "request-chord-iterator.hh"
-#include "sequential-music-iterator.hh"
-#include "simultaneous-music-iterator.hh"
-#include "translator-group.hh"
-#include "translation-property.hh"
-#include "change-iterator.hh"
-#include "change-translator.hh"
+
+#include <cstdio>
+using namespace std;
+
+#include "warn.hh"
+#include "music.hh"
+#include "context.hh"
+#include "event-iterator.hh"
+#include "input.hh"
+#include "international.hh"
#include "music-wrapper.hh"
#include "music-wrapper-iterator.hh"
-#include "time-scaled-music-iterator.hh"
-#include "time-scaled-music.hh"
-#include "context-specced-music.hh"
-#include "repeated-music.hh"
-#include "folded-repeat-iterator.hh"
-#include "unfolded-repeat-iterator.hh"
-#include "grace-iterator.hh"
-#include "grace-music.hh"
-#include "lyric-combine-music.hh"
-#include "lyric-combine-music-iterator.hh"
-#include "auto-change-music.hh"
-#include "auto-change-iterator.hh"
-#include "part-combine-music.hh"
-#include "part-combine-music-iterator.hh"
-#include "request.hh"
#include "simple-music-iterator.hh"
-#include "output-property.hh"
-#include "chord-tremolo-iterator.hh"
+
+#include "ly-smobs.icc"
Music_iterator::Music_iterator ()
{
- // clone_i_ = 0;
+ music_ = 0;
+ smobify_self ();
}
-Music_iterator::Music_iterator (Music_iterator const& src)
+Music_iterator::Music_iterator (Music_iterator const &)
{
- // clone_i_ = src.clone_i_ + 1;
- handle_ = *src.handle_.clone ();
- music_l_ = src.music_l_;
+ assert (false);
}
Music_iterator::~Music_iterator ()
{
}
-
-
-
-Translator_group*
-Music_iterator::report_to_l () const
+Context *
+Music_iterator::get_outlet () const
{
- return handle_.report_to_l ();
+ return handle_.get_outlet ();
}
-
void
-Music_iterator::set_translator (Translator_group *trans)
+Music_iterator::set_context (Context *trans)
{
- handle_.set_translator (trans);
+ handle_.set_context (trans);
}
void
return 0;
}
-
void
Music_iterator::process (Moment)
{
}
SCM
-Music_iterator::get_music (Moment)const
+Music_iterator::get_static_get_iterator (Music *m)
{
- return SCM_EOL;
-}
+ Music_iterator *p = 0;
-Music_iterator*
-Music_iterator::static_get_iterator_p (Music *m)
-{
- Music_iterator * p =0;
-
- /* It would be nice to do this decentrally, but the order of this is
- significant. */
- if (dynamic_cast<Request_chord *> (m))
- p = new Request_chord_iterator;
- else if (dynamic_cast<Lyric_combine_music *> (m))
- p = new Lyric_combine_music_iterator;
- else if (dynamic_cast<Simultaneous_music *> (m))
- p = new Simultaneous_music_iterator;
- else if (dynamic_cast<Sequential_music *> (m))
- p = new Sequential_music_iterator;
- else if (dynamic_cast<Translation_property *> (m))
- p = new Property_iterator;
- else if (dynamic_cast<Change_translator *> (m))
- p = new Change_iterator;
- else if (dynamic_cast<Push_translation_property*> (m))
- p = new Push_property_iterator;
- else if (dynamic_cast<Pop_translation_property*> (m))
- p = new Pop_property_iterator;
- else if (dynamic_cast<Time_scaled_music *> (m))
- p = new Time_scaled_music_iterator;
- else if (dynamic_cast<Grace_music *> (m))
- p = new Grace_iterator;
- else if (dynamic_cast<Auto_change_music *> (m))
- p = new Auto_change_iterator;
- else if (dynamic_cast<Part_combine_music *> (m))
- p = new Part_combine_music_iterator;
- else if (dynamic_cast<Music_wrapper *> (m))
- p = new Music_wrapper_iterator;
- else if (Repeated_music * n = dynamic_cast<Repeated_music *> (m))
+ SCM ctor = m->get_property ("iterator-ctor");
+ SCM iter = SCM_EOL;
+ if (ly_is_procedure (ctor))
{
- if (n->type_ == "tremolo")
- p = new Chord_tremolo_iterator;
- else if (n->fold_b_)
- p = new Folded_repeat_iterator;
- else
- p = new Unfolded_repeat_iterator;
+ iter = scm_call_0 (ctor);
+ p = unsmob_iterator (iter);
}
else
{
- p = new Simple_music_iterator ;
+ if (dynamic_cast<Music_wrapper *> (m))
+ p = new Music_wrapper_iterator;
+ else if (m->is_mus_type ("event"))
+ p = new Event_iterator;
+ else
+ p = new Simple_music_iterator;
+
+ iter = p->self_scm ();
+ p->unprotect ();
}
- p->music_l_ = m;
- return p;
+ p->music_ = m;
+ assert (m);
+ p->music_length_ = m->get_length ();
+ p->start_mom_ = m->start_mom ();
+
+ return iter;
}
-void
-Music_iterator::init_translator (Music *m, Translator_group *report_l)
+Moment
+Music_iterator::music_get_length () const
{
- music_l_ = m;
- if (Context_specced_music * csm =dynamic_cast<Context_specced_music *> (m))
- {
- Translator_group* a =report_l->
- find_create_translator_l (csm->translator_type_str_, csm->translator_id_str_);
+ return music_length_;
+}
- set_translator (a);
-
- }
+Moment
+Music_iterator::music_start_mom ()const
+{
+ return start_mom_;
+}
- if (! report_to_l ())
- set_translator (report_l);
+void
+Music_iterator::init_context (Music *m, Context *report)
+{
+ music_ = m;
+ assert (m);
+ if (! get_outlet ())
+ set_context (report);
}
+void
+Music_iterator::substitute_outlet (Context *f, Context *t)
+{
+ if (get_outlet () == f)
+ set_context (t);
+ derived_substitute (f, t);
+}
-Music_iterator*
-Music_iterator::get_iterator_p (Music *m) const
+void
+Music_iterator::derived_substitute (Context *, Context *)
{
- Music_iterator*p = static_get_iterator_p (m);
- p->init_translator (m, report_to_l ());
-
+}
+
+SCM
+Music_iterator::get_iterator (Music *m) const
+{
+ SCM ip = get_static_get_iterator (m);
+ Music_iterator *p = unsmob_iterator (ip);
+
+ p->init_context (m, get_outlet ());
+
p->construct_children ();
- return p;
+ return ip;
}
-Music_iterator*
-Music_iterator::try_music (Music *m) const
+/* Descend to a bottom context; implicitly create a new one if necessary */
+void
+Music_iterator::descend_to_bottom_context ()
{
- bool b = report_to_l ()->try_music ( (Music*)m); // ugh
- Music_iterator * it = b ? (Music_iterator*) this : 0; // ugh
- if (!it)
- it = try_music_in_children (m);
- return it;
+ assert (get_outlet ());
+ if (!get_outlet ()->is_bottom_context ())
+ set_context (get_outlet ()->get_default_interpreter ());
}
-Music_iterator*
-Music_iterator::try_music_in_children (Music *) const
+void
+Music_iterator::report_event (Music *m)
{
- return 0;
+ descend_to_bottom_context ();
+
+ /*
+ FIXME: then don't do it.
+ */
+ if (!m->is_mus_type ("event"))
+ m->origin ()->programming_error (_ ("Sending non-event to context"));
+
+ m->send_to_context (get_outlet ());
}
+IMPLEMENT_CTOR_CALLBACK (Music_iterator);
+
+Music *
+Music_iterator::get_music () const
+{
+ return music_;
+}
+
+/****************************************************************/
+
+IMPLEMENT_TYPE_P (Music_iterator, "ly:iterator?");
+IMPLEMENT_SMOBS (Music_iterator);
+IMPLEMENT_DEFAULT_EQUAL_P (Music_iterator);
+
+SCM
+Music_iterator::mark_smob (SCM smob)
+{
+ Music_iterator *mus = (Music_iterator *)SCM_CELL_WORD_1 (smob);
+
+ mus->derived_mark ();
+ /*
+ Careful with GC, although we intend the following as pointers
+ only, we _must_ mark them.
+ */
+ if (mus->get_outlet ())
+ scm_gc_mark (mus->get_outlet ()->self_scm ());
+ if (mus->music_)
+ scm_gc_mark (mus->music_->self_scm ());
+
+ return SCM_EOL;
+}
+
+int
+Music_iterator::print_smob (SCM sm, SCM port, scm_print_state*)
+{
+ char s[1000];
+
+ Music_iterator *iter = unsmob_iterator (sm);
+ sprintf (s, "#<%s>", iter->class_name ());
+ scm_puts (s, port);
+ return 1;
+}
+
+void
+Music_iterator::derived_mark ()const
+{
+}
+
+void
+Music_iterator::quit ()
+{
+ do_quit ();
+ handle_.set_context (0);
+}
+
+void
+Music_iterator::do_quit ()
+{
+}
+
+bool
+Music_iterator::run_always ()const
+{
+ return false;
+}
+
+bool
+is_child_context (Context *me, Context *child)
+{
+ while (child && child != me)
+ child = child->get_parent_context ();
+
+ return child == me;
+}
+
+/*
+ move to context of child iterator if it is deeper down in the
+ hierarchy.
+*/
+void
+Music_iterator::descend_to_child (Context *child_report)
+{
+ Context *me_report = get_outlet ();
+ if (is_child_context (me_report, child_report))
+ set_context (child_report);
+}
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