X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftranslator.cc;h=6eab93b9a883e75cf004447f83f82722a09e054a;hb=e012a172277f78d4954d269fd4973ad3fd6e5d60;hp=d4a5cb9d2096eda6e51a4720d20c78ff43913d6d;hpb=2fd5f86de0500ecd9a3f47a2540c3b304f835ef4;p=lilypond.git diff --git a/lily/translator.cc b/lily/translator.cc index d4a5cb9d20..6eab93b9a8 100644 --- a/lily/translator.cc +++ b/lily/translator.cc @@ -3,186 +3,247 @@ source file of the GNU LilyPond music typesetter - (c) 1997--1999 Han-Wen Nienhuys + (c) 1997--2006 Han-Wen Nienhuys */ #include "translator.hh" -#include "debug.hh" + +#include "warn.hh" #include "translator-group.hh" -#include "moment.hh" +#include "context-def.hh" +#include "dispatcher.hh" +#include "global-context.hh" + +#include "translator.icc" +#include "ly-smobs.icc" -char const* -Translator::name() const +Translator::~Translator () { - return classname(this); } -Translator::~Translator () +void +Translator::init () { + must_be_last_ = false; + self_scm_ = SCM_EOL; + daddy_context_ = 0; + smobify_self (); } -Translator::Translator () +void +Translator::process_music () { - status = ORPHAN; - daddy_trans_l_ = 0; - output_def_l_ = 0; } -Translator::Translator (Translator const &s) - : Input (s) +void +Translator::process_acknowledged () { - status = ORPHAN; - daddy_trans_l_ =0; - output_def_l_ = s.output_def_l_; - type_str_ = s.type_str_; } -bool -Translator::is_alias_b (String s) const +Translator::Translator () { - return s == type_str_; + init (); +} + +Translator::Translator (Translator const &src) +{ + init (); + must_be_last_ = src.must_be_last_; } bool -Translator::do_try_music (Music *) +Translator::try_music (Music *) { return false; } - Moment Translator::now_mom () const { - return daddy_trans_l_->now_mom (); + return daddy_context_->now_mom (); } +Output_def * +Translator::get_output_def () const +{ + return daddy_context_->get_output_def (); +} -void -Translator::add_processing () +Translator_group * +Translator::get_daddy_translator () const { - if (status > ORPHAN) - return; - - do_add_processing (); - status = VIRGIN; + return daddy_context_->implementation (); } void -Translator::do_add_processing () +Translator::protect_event (SCM ev) { + get_daddy_translator ()->protect_event (ev); } -void -Translator::print () const +SCM +Translator::internal_get_property (SCM sym) const { -#ifndef NPRINT - DEBUG_OUT << classname (this) << " {"; - if (classname (this) != type_str_) - DEBUG_OUT << "type = " << type_str_; - do_print (); - DEBUG_OUT << "}\n"; -#endif + return daddy_context_->internal_get_property (sym); } void -Translator::do_print () const +Translator::stop_translation_timestep () { } +/* + this function has 2 properties + - It is called before try_music () + - It is called before any user information enters the translators. + (i.e. any \property or event is not processed yet.) +*/ +void +Translator::start_translation_timestep () +{ +} void -Translator::creation_processing () +Translator::initialize () { - if (status >= CREATION_INITED) - return ; - - do_creation_processing (); - status = CREATION_INITED; } void -Translator::post_move_processing () +Translator::finalize () { - if (status >= MOVE_INITED) - return; +} - creation_processing (); - do_post_move_processing (); - status = MOVE_INITED; +void +Translator::connect_to_context (Context *c) +{ + for (translator_listener_record *r = get_listener_list (); r; r=r->next_) + c->events_below ()->add_listener (r->get_listener_ (this), r->event_class_); } void -Translator::removal_processing () +Translator::disconnect_from_context (Context *c) { - if (status == ORPHAN) - return; - creation_processing (); - do_removal_processing (); - // elegancy ... - // status = ORPHAN; + for (translator_listener_record *r = get_listener_list (); r; r=r->next_) + c->events_below ()->remove_listener (r->get_listener_ (this), r->event_class_); } +/* + Internally called once, statically, for each translator + listener. Connects the name of an event class with a procedure that + fetches the corresponding listener. -bool -Translator::try_music (Music * r) -{ - if (status < MOVE_INITED) - post_move_processing (); + The method should only be called from the macro + IMPLEMENT_TRANSLATOR_LISTENER. + */ +void +Translator::add_translator_listener (translator_listener_record **listener_list, + translator_listener_record *r, + Listener (*get_listener) (void *), + const char *ev_class) +{ + /* ev_class is the C++ identifier name. Convert to scm symbol */ + string name = string (ev_class); + name = replace_all (name, '_', '-'); + name = name + "-event"; + /* It's OK to use scm_gc_protect_object for protection, because r is + statically allocated. */ + r->event_class_ = scm_gc_protect_object (scm_str2symbol (name.c_str ())); + r->get_listener_ = get_listener; + r->next_ = *listener_list; + *listener_list = r; +} - return do_try_music (r); +/* + SMOBS +*/ +SCM +Translator::mark_smob (SCM sm) +{ + Translator *me = (Translator *) SCM_CELL_WORD_1 (sm); + me->derived_mark (); + return SCM_EOL; } -void -Translator::process_requests () +Global_context * +Translator::get_global_context () const { - if (status < PROCESSED_REQS) - post_move_processing (); - else if (status >= PROCESSED_REQS) - return; - - status = PROCESSED_REQS; - do_process_requests (); + return daddy_context_->get_global_context (); } -void -Translator::pre_move_processing () +Context * +Translator::get_score_context () const { - do_pre_move_processing (); - status = CREATION_INITED; + return daddy_context_->get_score_context (); } +IMPLEMENT_SMOBS (Translator); +IMPLEMENT_DEFAULT_EQUAL_P (Translator); +IMPLEMENT_TYPE_P (Translator, "ly:translator?"); +bool +Translator::must_be_last () const +{ + return must_be_last_; +} -Music_output_def * -Translator::output_def_l () const +void +Translator::derived_mark () const { - return output_def_l_; } -SCM -Translator::get_property (String id, Translator_group **where_l) const +int +Translator::print_smob (SCM s, SCM port, scm_print_state *) { - return daddy_trans_l_->get_property (ly_symbol2scm (id.ch_C()), where_l); + Translator *me = (Translator *) SCM_CELL_WORD_1 (s); + scm_puts ("#class_name (), port); + scm_puts (" >", port); + return 1; } -SCM -Translator::get_property (SCM sym, - Translator_group **where_l) const +void +add_acknowledger (Engraver_void_function_engraver_grob_info ptr, + char const *func_name, + vector *ack_array) { - return daddy_trans_l_->get_property (sym, where_l); + Acknowledge_information inf; + inf.function_ = ptr; + + string interface_name (func_name); + + interface_name = replace_all (interface_name, '_', '-'); + interface_name += "-interface"; + + inf.symbol_ = scm_gc_protect_object (ly_symbol2scm (interface_name.c_str ())); + ack_array->push_back (inf); } +Engraver_void_function_engraver_grob_info +generic_get_acknowledger (SCM sym, vector const *ack_array) +{ + for (vsize i = 0; i < ack_array->size (); i++) + { + if (ack_array->at (i).symbol_ == sym) + return ack_array->at (i).function_; + } + return 0; +} +Moment +get_event_length (Stream_event *e) +{ + Moment *m = unsmob_moment (e->get_property ("length")); + if (m) + return *m; + else + return Moment (0); +} -void -Translator:: do_pre_move_processing(){} -void -Translator::do_post_move_processing(){} -void -Translator::do_process_requests () {} -void -Translator::do_creation_processing() {} -void -Translator::do_removal_processing(){} +ADD_TRANSLATOR (Translator, + "Base class. Unused", + "", + "", + "", + "");