source file of the GNU LilyPond music typesetter
- (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "debug.hh"
-#include "music-list.hh"
+
+/*
+ UGH. too many includes.
+ */
+#include <stdio.h>
+
+#include "warn.hh"
#include "music-iterator.hh"
-#include "property-iterator.hh"
-#include "request-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 "context.hh"
#include "music-wrapper.hh"
#include "music-wrapper-iterator.hh"
-#include "compressed-music-iterator.hh"
-#include "compressed-music.hh"
-#include "repeated-music.hh"
-#include "repeated-music-iterator.hh"
+#include "simple-music-iterator.hh"
-void
-Music_iterator::do_print() const
+#include "ly-smobs.icc"
+
+Music_iterator::Music_iterator ()
{
+ music_ = 0;
+ smobify_self ();
}
-void
-Music_iterator::print() const
-{
-#ifndef NPRINT
- if (!check_debug)
- return ;
- DOUT << classname(this) << "{";
- DOUT << "report to " <<
- report_to_l() << " (" << classname (report_to_l ()) << ")\n";
- if (ok())
- DOUT << "next at " << next_moment() << " ";
- else
- DOUT << "not feeling well today..";
- do_print();
- DOUT << "}\n";
-#endif
+Music_iterator::Music_iterator (Music_iterator const& )
+{
+ assert (false);
}
-Translator_group*
-Music_iterator::get_req_translator_l()
+Music_iterator::~Music_iterator ()
{
- assert (report_to_l());
- if (report_to_l()->is_bottom_translator_b ())
- return report_to_l();
+}
- set_translator (report_to_l()->get_default_interpreter ());
- return report_to_l();
+Context *
+Music_iterator::get_outlet () const
+{
+ return handle_.get_outlet ();
}
+void
+Music_iterator::set_translator (Context *trans)
+{
+ handle_.set_translator (trans);
+}
-Translator_group*
-Music_iterator::report_to_l() const
+void
+Music_iterator::construct_children ()
{
- return handle_.report_to_l ();
}
+Moment
+Music_iterator::pending_moment () const
+{
+ return 0;
+}
void
-Music_iterator::set_translator (Translator_group*trans)
+Music_iterator::process (Moment)
{
- handle_.set_translator (trans);
}
-void
-Music_iterator::construct_children()
+bool
+Music_iterator::ok () const
{
+ return false;
}
-Music_iterator::~Music_iterator()
+
+
+SCM
+Music_iterator::get_static_get_iterator (Music *m)
{
+ Music_iterator * p =0;
+
+ SCM ctor = m->get_property ("iterator-ctor") ;
+ SCM iter = SCM_EOL;
+ if (gh_procedure_p (ctor))
+ {
+ iter = gh_call0 (ctor);
+ p = unsmob_iterator (iter);
+ }
+ else
+ {
+ if (dynamic_cast<Music_wrapper *> (m))
+ p = new Music_wrapper_iterator;
+ else
+ p = new Simple_music_iterator;
+
+ iter = p->self_scm ();
+ scm_gc_unprotect_object (iter);
+ }
+
+ p->music_ = m;
+ assert (m);
+ p->music_length_ = m->get_length ();
+ p->start_mom_ = m->start_mom ();
+
+ return iter;
}
+
Moment
-Music_iterator::next_moment() const
+Music_iterator::music_get_length () const
{
- return 0;
+ return music_length_;
}
+Moment
+Music_iterator::music_start_mom ()const
+{
+ return start_mom_;
+}
void
-Music_iterator::process_and_next (Moment m)
+Music_iterator::init_translator (Music *m, Context *report)
{
- do_process_and_next (m);
+ music_ = m;
+ assert (m);
+ if (! get_outlet ())
+ set_translator (report);
}
void
-Music_iterator::do_process_and_next (Moment)
+Music_iterator::substitute_outlet (Context *f, Context *t)
{
- first_b_ = false;
+ if (get_outlet () == f)
+ set_translator (t);
+ derived_substitute (f,t);
}
-bool
-Music_iterator::ok() const
+void
+Music_iterator::derived_substitute (Context *,Context *)
+{
+}
+
+SCM
+Music_iterator::get_iterator (Music *m) const
{
- return first_b_;
+ SCM ip = get_static_get_iterator (m);
+ Music_iterator*p = unsmob_iterator (ip);
+
+ p->init_translator (m, get_outlet ());
+
+ p->construct_children ();
+ return ip;
}
+/*
+ TODO: rename to prevent confusion between Translator::try_music and
+ Iterator::try_music
+
+ */
Music_iterator*
-Music_iterator::static_get_iterator_p (Music const *m, Translator_group *report_l)
+Music_iterator::try_music (Music *m) const
{
- Music_iterator * p =0;
- if (dynamic_cast<Request_chord const *> (m))
- p = new Request_chord_iterator;
- else if (dynamic_cast<Simultaneous_music const *> (m))
- p = new Simultaneous_music_iterator;
- else if (dynamic_cast<Sequential_music const *> (m))
- p = new Sequential_music_iterator;
- else if (dynamic_cast<Translation_property const *> (m))
- p = new Property_iterator;
- else if (dynamic_cast<Change_translator const *> (m))
- p = new Change_iterator;
- else if (dynamic_cast<Compressed_music const *> (m))
- p = new Compressed_music_iterator;
- else if (dynamic_cast<Music_wrapper const *> (m))
- p = new Music_wrapper_iterator;
- else if (dynamic_cast<Repeated_music const *> (m))
- p = new Repeated_music_iterator;
- else
- assert (0);
+ bool b = get_outlet ()->try_music ((Music*)m); // ugh
+ Music_iterator * it = b ? (Music_iterator*) this : 0; // ugh
+ if (!it)
+ it = try_music_in_children (m);
+ return it;
+}
- p->music_l_ = m;
- if (m->translator_type_str_.length_i ())
- {
- Translator_group* a =report_l->
- find_create_translator_l (m->translator_type_str_, m->translator_id_str_);
- p->set_translator (a);
- }
+Music_iterator*
+Music_iterator::try_music_in_children (Music *) const
+{
+ return 0;
+}
- if (! p->report_to_l())
- p ->set_translator (report_l);
+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 p;
+
+ return SCM_EOL;
}
+int
+Music_iterator::print_smob (SCM sm , SCM port, scm_print_state*)
+{
+ char s[1000];
-Music_iterator*
-Music_iterator::get_iterator_p (Music const*m) const
+ Music_iterator *iter = unsmob_iterator (sm);
+ sprintf (s, "#<%s>", classname (iter));
+ scm_puts (s, port);
+ return 1;
+}
+
+void
+Music_iterator::derived_mark ()const
{
- Music_iterator*p = static_get_iterator_p (m, report_to_l());
- p->construct_children();
- return p;
}
-Music_iterator::Music_iterator()
+void
+Music_iterator::quit ()
{
- first_b_ = true;
+ do_quit ();
+ handle_.quit ();
}
+void
+Music_iterator::do_quit ()
+{
+}
+bool
+Music_iterator::run_always ()const
+{
+ return false;
+}
+
+/*
+ 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 ();
+
+ Context * c = child_report;
+ while (c && c != me_report)
+ {
+ c = c->daddy_context_;
+ }
+
+ if (c == me_report)
+ set_translator (child_report);
+}
projects / lilypond.git / blobdiff