source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "debug.hh"
-#include "music-list.hh"
+
+/*
+ UGH. too many includes.
+ */
+#include "warn.hh"
#include "music-iterator.hh"
-#include "voice-iterator.hh"
-#include "property-iterator.hh"
-#include "chord-iterator.hh"
-#include "request-iterator.hh"
#include "translator-group.hh"
-#include "translation-property.hh"
-#include "change-iterator.hh"
-#include "change-translator.hh"
-
#include "music-wrapper.hh"
#include "music-wrapper-iterator.hh"
+#include "simple-music-iterator.hh"
+#include "ly-smobs.icc"
+#include "ly-smobs.icc"
-IMPLEMENT_IS_TYPE_B(Music_iterator);
+Music_iterator::Music_iterator ()
+{
+ music_ = 0;
+ smobify_self ();
+}
+Music_iterator::Music_iterator (Music_iterator const& src)
+{
+ handle_ = *src.handle_.clone ();
+ music_ = src.music_;
+ music_length_ = src.music_length_;
+ start_mom_ = src.start_mom_;
+ smobify_self ();
+}
-void
-Music_iterator::do_print() const
+Music_iterator::~Music_iterator ()
{
+}
+Translator_group*
+Music_iterator::report_to () const
+{
+ return handle_.report_to ();
}
void
-Music_iterator::print() const
-{
-#ifndef NPRINT
- if (!check_debug)
- return ;
- DOUT << name() << "{";
- DOUT << "report to " <<
- report_to_l() << " (" << report_to_l ()->name () << ")\n";
- if (ok())
- DOUT << "next at " << next_moment() << " ";
- else
- DOUT << "not feeling well today..";
- do_print();
- DOUT << "}\n";
-#endif
+Music_iterator::set_translator (Translator_group *trans)
+{
+ handle_.set_translator (trans);
}
-Translator_group*
-Music_iterator::get_req_translator_l()
+void
+Music_iterator::construct_children ()
{
- 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();
}
-void
-Music_iterator::push_translator (Translator_group*t)
+Moment
+Music_iterator::pending_moment () const
{
- report_to_l_arr_.push (t);
- t->iterator_count_ ++;
+ return 0;
}
void
-Music_iterator::pop_translator()
+Music_iterator::process (Moment)
{
- report_to_l()->iterator_count_ --;
- assert (report_to_l()->iterator_count_ >=0);
- report_to_l_arr_.pop();
}
-Translator_group*
-Music_iterator::report_to_l() const
+bool
+Music_iterator::ok () const
{
- if (! report_to_l_arr_.size())
- return 0;
- return report_to_l_arr_.top();
+ return false;
}
-
void
-Music_iterator::set_translator (Translator_group*trans)
-{
- if (report_to_l()==trans)
- return;
- if (report_to_l())
- pop_translator();
- if (trans)
- push_translator (trans);
+Music_iterator::skip (Moment)
+{
}
-void
-Music_iterator::construct_children()
+SCM
+Music_iterator::get_pending_events (Moment)const
{
+ return SCM_EOL;
+}
+
+SCM
+Music_iterator::get_static_get_iterator (Music *m)
+{
+ Music_iterator * p =0;
+ SCM ctor = m->get_mus_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;
}
-Music_iterator::~Music_iterator()
+
+Moment
+Music_iterator::music_get_length () const
{
- set_translator (0);
+ return music_length_;
}
Moment
-Music_iterator::next_moment() const
+Music_iterator::music_start_mom ()const
{
- return 0;
+ return start_mom_;
}
void
-Music_iterator::process_and_next (Moment)
+Music_iterator::init_translator (Music *m, Translator_group *report)
{
- first_b_ = false;
+ music_ = m;
+ assert (m);
+ if (! report_to ())
+ set_translator (report);
}
-bool
-Music_iterator::ok() const
+
+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, report_to ());
+
+ 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 *m,
- Translator_group*report_l)
+Music_iterator::try_music (Music *m) const
{
- Music_iterator * p =0;
- if (m->is_type_b (Request_chord::static_name()))
- p = new Request_chord_iterator ((Request_chord*) m);
- else if (m->is_type_b (Chord::static_name()))
- p = new Chord_iterator ((Chord*) m);
- else if (m->is_type_b (Voice::static_name()))
- p = new Voice_iterator ((Voice*) m);
- else if (m->is_type_b (Translation_property::static_name ()))
- p = new Property_iterator((Translation_property *) m);
- else if (m->is_type_b (Change_translator::static_name ()))
- p = new Change_iterator((Change_translator*) m);
- else if (m->is_type_b (Music_wrapper::static_name ()))
- p = new Music_wrapper_iterator ((Music_wrapper *)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);
- }
+ bool b = report_to ()->try_music ((Music*)m); // ugh
+ Music_iterator * it = b ? (Music_iterator*) this : 0; // ugh
+ if (!it)
+ it = try_music_in_children (m);
+ return it;
+}
+
+Music_iterator*
+Music_iterator::try_music_in_children (Music *) const
+{
+ return 0;
+}
+
+IMPLEMENT_CTOR_CALLBACK (Music_iterator);
+
+Music *
+Music_iterator::get_music () const
+{
+ return music_;
+}
- if (! p->report_to_l())
- p ->set_translator (report_l);
+/****************************************************************/
+
+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->report_to())
+ scm_gc_mark (mus->report_to()->self_scm());
+ if (mus->music_)
+ scm_gc_mark (mus->music_->self_scm());
- return p;
+
+ return SCM_EOL;
}
-Music_iterator*
-Music_iterator::get_iterator_p (Music*m) const
+int
+Music_iterator::print_smob (SCM , SCM port, scm_print_state*)
{
- Music_iterator*p = static_get_iterator_p (m,report_to_l());
- p->daddy_iter_l_ = (Music_iterator*)this;
- p->construct_children();
- return p;
+ scm_puts ("#<Music iterator>", port);
+ return 1;
}
-Music_iterator::Music_iterator()
+void
+Music_iterator::derived_mark()const
{
- daddy_iter_l_ =0;
- first_b_ = true;
}
+void
+Music_iterator::quit ()
+{
+ do_quit ();
+ handle_.quit ();
+}
+void
+Music_iterator::do_quit()
+{
+}
projects / lilypond.git / blobdiff