X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmusic-iterator.cc;h=00a5538dc25dd67b59c35ac9cc2a2e0d43e78247;hb=75eebcb49e52d296b1da3e1074e0825d2c780db4;hp=b1697e199eec9eaf4d8c74017ac3b81473bd3c11;hpb=5175fb07679b964a62202f6c900451e88d120f69;p=lilypond.git diff --git a/lily/music-iterator.cc b/lily/music-iterator.cc index b1697e199e..00a5538dc2 100644 --- a/lily/music-iterator.cc +++ b/lily/music-iterator.cc @@ -3,223 +3,255 @@ source file of the GNU LilyPond music typesetter - (c) 1997--2000 Han-Wen Nienhuys + (c) 1997--2006 Han-Wen Nienhuys */ /* 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 +using namespace std; + +#include "warn.hh" +#include "context.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 "request-iterator.hh" -#include "output-property.hh" -#include "chord-tremolo-iterator.hh" +#include "simple-music-iterator.hh" -void -Music_iterator::do_print() const -{ -} +#include "ly-smobs.icc" -void -Music_iterator::print() const -{ -#ifndef NPRINT - if (!flower_dstream) - return ; - DEBUG_OUT << classname(this) << "{"; - Translator_group *t = report_to_l(); - DEBUG_OUT << "report to " << t->type_str_ << " = " << t->id_str_ << "\n"; - if (ok()) - DEBUG_OUT << "next at " << next_moment() << " "; - else - DEBUG_OUT << "not feeling well today.."; - do_print(); - DEBUG_OUT << "}\n"; -#endif +Music_iterator::Music_iterator () +{ + music_ = 0; + smobify_self (); } -Translator_group* -Music_iterator::get_req_translator_l() +Music_iterator::Music_iterator (Music_iterator const &) { - 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(); + assert (false); } - -Translator_group* -Music_iterator::report_to_l() const +Music_iterator::~Music_iterator () { - return handle_.report_to_l (); } - -void -Music_iterator::set_translator (Translator_group*trans) +Context * +Music_iterator::get_outlet () const { - handle_.set_translator (trans); + return handle_.get_outlet (); } void -Music_iterator::construct_children() +Music_iterator::set_context (Context *trans) { + handle_.set_context (trans); } -Music_iterator::~Music_iterator() +void +Music_iterator::construct_children () { } Moment -Music_iterator::next_moment() const +Music_iterator::pending_moment () const { return 0; } - void -Music_iterator::process_and_next (Moment m) +Music_iterator::process (Moment) { - do_process_and_next (m); } -void -Music_iterator::do_process_and_next (Moment) +bool +Music_iterator::ok () const { - first_b_ = false; + return false; } -bool -Music_iterator::ok() const -{ - return first_b_; -} - -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 (m)) - p = new Request_chord_iterator; - else if (dynamic_cast (m)) - p = new Lyric_combine_music_iterator; - else if (dynamic_cast (m)) - p = new Simultaneous_music_iterator; - else if (dynamic_cast (m)) - p = new Sequential_music_iterator; - else if (dynamic_cast (m)) - p = new Property_iterator; - else if (dynamic_cast (m)) - p = new Change_iterator; - else if (dynamic_cast(m)) - p = new Push_property_iterator; - else if (dynamic_cast(m)) - p = new Pop_property_iterator; - else if (dynamic_cast (m)) - p = new Time_scaled_music_iterator; - else if (dynamic_cast (m)) - p = new Grace_iterator; - else if (dynamic_cast (m)) - p = new Auto_change_iterator; - else if (dynamic_cast (m)) - p = new Part_combine_music_iterator; - else if (dynamic_cast (m)) - p = new Music_wrapper_iterator; - else if (Repeated_music * n = dynamic_cast (m)) +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 (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 (m)) + p = new Music_wrapper_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(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_translator (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()); - - p->construct_children(); - return p; } -Music_iterator::Music_iterator() +SCM +Music_iterator::get_iterator (Music *m) const { - first_b_ = true; + SCM ip = get_static_get_iterator (m); + Music_iterator *p = unsmob_iterator (ip); + + p->init_translator (m, get_outlet ()); + + p->construct_children (); + return ip; } -Music_iterator* -Music_iterator::try_music (Music *m) const +/* + TODO: rename to prevent confusion between Context::try_music and + Iterator::try_music +*/ +Music_iterator * +Music_iterator::try_music (Music *m) const { - bool b = report_to_l ()->try_music ((Music*)m); // ugh - Music_iterator * it = b ? (Music_iterator*) this : 0; // ugh + 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; } -Music_iterator* -Music_iterator::try_music_in_children (Music * ) const +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_; +} + +/****************************************************************/ + +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); +}