/*
- music-iterator.cc -- implement {Music,Chord,Voice}_iterator
+ music-iterator.cc -- implement Music_iterator
source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "music-list.hh"
+/*
+ UGH. too many includes.
+ */
+#include "warn.hh"
#include "music-iterator.hh"
-#include "translator.hh"
-#include "request.hh"
-#include "debug.hh"
-
-
-IMPLEMENT_IS_TYPE_B(Music_iterator);
+#include "translator-group.hh"
+#include "music-wrapper.hh"
+#include "music-wrapper-iterator.hh"
+#include "simple-music-iterator.hh"
+#include "context-specced-music.hh"
-Chord_iterator::~Chord_iterator()
+Music_iterator::Music_iterator ()
{
}
-void
-Music_iterator::do_print()const
+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_;
}
-void
-Music_iterator::print() const
+Music_iterator::~Music_iterator ()
{
-#ifndef NPRINT
- if ( !check_debug)
- return ;
- mtor << name() << "{";
- mtor << "report to " <<
- report_to_l() << " (" << report_to_l()->name() << ")\n";
- mtor << "next at " << next_moment() << " ";
- do_print();
- mtor << "}\n";
-#endif
}
-Translator *
-Music_iterator::get_req_translator_l()
-{
- assert(report_to_l());
- if (report_to_l()->is_bottom_engraver_b() )
- return report_to_l();
-
- set_translator( report_to_l()->get_default_interpreter() );
- return report_to_l();
-}
-void
-Music_iterator::push_translator(Translator*t)
-{
- if (t) {
- report_to_l_arr_.push(t);
- t->iterator_count_ ++;
- }
-}
-void
-Music_iterator::pop_translator()
-{
- if (report_to_l()) {
- report_to_l()->iterator_count_ --;
- report_to_l_arr_.pop();
- }
-}
-Translator*
-Music_iterator::report_to_l()const
+Translator_group*
+Music_iterator::report_to () const
{
- if (! report_to_l_arr_.size() )
- return 0;
- return report_to_l_arr_.top();
+ return handle_.report_to ();
}
void
-Music_iterator::set_translator(Translator*reg)
-{
- if (report_to_l()==reg)
- return;
- pop_translator();
- push_translator(reg);
-}
-
-void
-Music_iterator::construct_children()
+Music_iterator::set_translator (Translator_group *trans)
{
-
+ handle_.set_translator (trans);
}
-Music_iterator::~Music_iterator()
+void
+Music_iterator::construct_children ()
{
- set_translator(0);
}
Moment
-Music_iterator::next_moment()const
+Music_iterator::pending_moment () const
{
- return 0;
+ return 0;
}
void
-Music_iterator::process_and_next(Moment)
+Music_iterator::process (Moment)
{
- first_b_ = false;
}
bool
-Music_iterator::ok()const
-{
- return first_b_;
-}
-
-Music_iterator*
-Music_iterator::static_get_iterator_p(Music *m,
- Translator *report_l)
+Music_iterator::ok () const
{
- Music_iterator * p =0;
- if (m->is_type_b( Change_reg::static_name()))
- p = new Change_iterator((Change_reg*)m);
- else 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);
-
- if (m -> type_str_ != "") {
- Translator * a =report_l->
- find_get_translator_l(m-> type_str_, m->id_str_);
- p->set_translator( a);
- }
-
-
- if (! p->report_to_l() )
- p ->set_translator(report_l);
-
- return p;
+ return false;
}
-Music_iterator*
-Music_iterator::get_iterator_p(Music*m)const
+void
+Music_iterator::skip (Moment)
{
- Music_iterator*p = static_get_iterator_p(m,report_to_l());
- p->daddy_iter_l_ = (Music_iterator*)this;
- p->construct_children();
- return p;
}
-Music_iterator::Music_iterator()
+SCM
+Music_iterator::get_pending_events (Moment)const
{
- daddy_iter_l_ =0;
- first_b_ = true;
+ return SCM_EOL;
}
-/* ************** */
-
-Chord_iterator::Chord_iterator(Chord const *chord_C)
+Music_iterator*
+Music_iterator::get_static_get_iterator (Music *m)
{
- chord_C_ = chord_C;
-}
+ Music_iterator * p =0;
-void
-Chord_iterator::construct_children()
-{
- int j = 0;
- for(PCursor<Music*> i(chord_C_->music_p_list_.top()); //, int j = 0;
- i.ok(); j++, i++) {
- Music_iterator * mi = get_iterator_p( i.ptr());
- set_translator(mi->report_to_l()->ancestor_l( chord_C_->multi_level_i_ ));
- if ( mi->ok() )
- children_p_list_.bottom().add( mi );
- else
- delete mi;
+ SCM ctor = m->get_mus_property ("iterator-ctor") ;
+ if (unsmob_cxx_function (ctor))
+ {
+ Cxx_function f = unsmob_cxx_function (ctor);
+
+ p = (Music_iterator*) (*f) (SCM_EOL);
}
-}
-void
-Chord_iterator::do_print() const
-{
-#ifndef NPRINT
- for (PCursor<Music_iterator*> i(children_p_list_.top()); i.ok(); i++) {
- i->print();
+ else if (dynamic_cast<Music_wrapper *> (m))
+ p = new Music_wrapper_iterator;
+ else
+ {
+ p = new Simple_music_iterator ;
}
-#endif
-}
-void
-Chord_iterator::process_and_next(Moment until)
-{
- for (PCursor<Music_iterator*> i(children_p_list_.top()); i.ok(); ) {
- if (i->next_moment() == until) {
- i->process_and_next(until);
- }
- if (!i->ok())
- delete i.remove_p();
- else
- i++;
- }
- Music_iterator::process_and_next(until);
+ p->music_ = m;
+ assert (m);
+ p->music_length_ = m->length_mom ();
+ p->start_mom_ = m->start_mom ();
+ return p;
}
-IMPLEMENT_IS_TYPE_B1(Chord_iterator,Music_iterator);
-
Moment
-Chord_iterator::next_moment()const
-{
- Moment next_ = infinity_mom;
- for (PCursor<Music_iterator*> i(children_p_list_.top()); i.ok(); i++)
- next_ = next_ <? i->next_moment() ;
- return next_;
-}
-
-
-
-bool
-Chord_iterator::ok()const
-{
- return children_p_list_.size();
-}
-
-/* ************** */
-
-void
-Voice_iterator::do_print()const
+Music_iterator::music_length_mom () const
{
- if (iter_p_)
- iter_p_->print();
-}
+ return music_length_;
-Voice_iterator::Voice_iterator(Voice const*v)
- : PCursor<Music*> ( v->music_p_list_)
-{
- here_mom_ = v->offset_mom_;
- voice_C_ = v;
- iter_p_ =0;
}
-void
-Voice_iterator::construct_children()
+Moment
+Music_iterator::music_start_mom ()const
{
- if (ok()) {
- iter_p_ = Music_iterator::get_iterator_p( ptr() );
- if (iter_p_->report_to_l()->depth_i() > report_to_l()->depth_i())
- set_translator(iter_p_->report_to_l());
- }
+ return start_mom_;
}
void
-Voice_iterator::next_element()
+Music_iterator::init_translator (Music *m, Translator_group *report)
{
- delete iter_p_ ;
- iter_p_ =0;
- here_mom_ += ptr()->time_int().length();
- PCursor<Music*>::next();
- construct_children();
-}
+ music_ = m;
+ assert (m);
+ if (Context_specced_music * csm =dynamic_cast<Context_specced_music *> (m))
+ {
+ SCM ct = csm->get_mus_property ("context-type");
+ String c_type;
+ if (gh_string_p (ct))
+ c_type = ly_scm2string (ct);
+
+ String c_id;
+ SCM ci = csm->get_mus_property ("context-id");
+ if (gh_string_p (ci))
+ c_id = ly_scm2string (ci);
+
+ Translator_group* a
+ =report->find_create_translator (c_type, c_id);
-Voice_iterator::~Voice_iterator()
-{
- delete iter_p_;
-}
-
-
-IMPLEMENT_IS_TYPE_B1(Voice_iterator,Music_iterator);
-
-void
-Voice_iterator::process_and_next(Moment until)
-{
- while (ok()) {
- Moment local_until = until - here_mom_;
- while ( iter_p_ && iter_p_->ok() ) {
- Moment here = iter_p_->next_moment();
- if (here != local_until)
- return;
- iter_p_->process_and_next(local_until);
- }
- if (!iter_p_)
- iter_p_ = Music_iterator::get_iterator_p( ptr() );
- else if (!iter_p_->ok() )
- next_element();
+ set_translator (a);
+
}
- Music_iterator::process_and_next(until);
- assert(!ok() || next_moment() > until);
-}
-Moment
-Voice_iterator::next_moment()const
-{
- return iter_p_->next_moment() + here_mom_;
+ if (! report_to ())
+ set_translator (report);
}
-bool
-Voice_iterator::ok()const
-{
- return PCursor<Music*>::ok();
-}
-/* ***************** */
-
-
-Change_iterator::Change_iterator(Change_reg * ch)
+Music_iterator*
+Music_iterator::get_iterator (Music *m) const
{
- change_l_ = ch;
+ Music_iterator*p = get_static_get_iterator (m);
+ p->init_translator (m, report_to ());
+
+ p->construct_children ();
+ return p;
}
-
-IMPLEMENT_IS_TYPE_B1(Change_iterator,Music_iterator);
-
/*
- TODO: pop/pushgroup
+ TODO: rename to prevent confusion between Translator::try_music and
+ Iterator::try_music
+
*/
-void
-Change_iterator::process_and_next(Moment mom)
-{
-#if 0
- if ( id[0] == '-') {
-
-
- Engraver_group_engraver *group_l =
- report_to_l()->find_get_translator_l(change_l_->type_str_,
- change_l_->id_str_);
-
- report_to_l()->daddy_grav_l_->remove_engraver_p(report_to_l());
- group_l->add(report_to_l());
-#endif
- Music_iterator::process_and_next(mom);
-}
-
-
-
-/* ******************** */
-
-
-IMPLEMENT_IS_TYPE_B1(Request_chord_iterator,Music_iterator);
-void
-Request_chord_iterator::construct_children()
-{
- get_req_translator_l();
-}
-
-Request_chord_iterator::Request_chord_iterator(Request_chord*el_l)
+Music_iterator*
+Music_iterator::try_music (Music *m) const
{
- elt_l_ = el_l;
- elt_duration_ = el_l->time_int().length();
- last_b_ = false;
+ 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;
}
-
-bool
-Request_chord_iterator::ok()const
+Music_iterator*
+Music_iterator::try_music_in_children (Music *) const
{
- return (elt_duration_ && !last_b_) || first_b_;
+ return 0;
}
+IMPLEMENT_CTOR_CALLBACK (Music_iterator);
-
-Moment
-Request_chord_iterator::next_moment()const
+Music *
+Music_iterator::get_music () const
{
- Moment m(0);
- if (!first_b_)
- m = elt_duration_;
- return m;
-}
-
-void
-Request_chord_iterator::do_print() const
-{
-#ifndef NPRINT
- mtor << "duration: " << elt_duration_;
-#endif
-}
-void
-Request_chord_iterator::process_and_next(Moment mom)
-{
- if ( first_b_ ) {
- for (PCursor<Music*> i(elt_l_->music_p_list_); i.ok(); i++) {
- assert(i->is_type_b(Request::static_name()));
- Request * req_l = (Request*)i.ptr();
- bool gotcha = report_to_l()->try_request(req_l);
- if (!gotcha)
- req_l->warning("Junking request: " + String(req_l->name()));
-
- }
- first_b_ = false;
- }
-
- if ( mom >= elt_duration_ )
- last_b_ = true;
+ return music_;
}
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