X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Ftranslator.cc;h=116f2849ac702e33bb6e892dd6d8774f36e26c4b;hb=0b544cfb7332615ef809b71b57ab656741311ae1;hp=d0ed1e52137f7990b7e93307b31a7956f5a3ed21;hpb=a667c0fbd789c30b782bae277456bb1f940ddccc;p=lilypond.git diff --git a/lily/translator.cc b/lily/translator.cc index d0ed1e5213..116f2849ac 100644 --- a/lily/translator.cc +++ b/lily/translator.cc @@ -1,9 +1,20 @@ /* - translator.cc -- implement Translator + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1997--2014 Han-Wen Nienhuys - (c) 1997--2007 Han-Wen Nienhuys + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ #include "translator.hh" @@ -25,7 +36,6 @@ Translator::~Translator () void Translator::init () { - must_be_last_ = false; self_scm_ = SCM_EOL; daddy_context_ = 0; smobify_self (); @@ -48,8 +58,8 @@ Translator::Translator () Translator::Translator (Translator const &src) { + (void) src; init (); - must_be_last_ = src.must_be_last_; } Moment @@ -110,51 +120,19 @@ Translator::finalize () 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_); + for (translator_listener_record *r = get_listener_list (); r; r = r->next_) + c->events_below ()->add_listener (r->get_listener_ (this, r->event_class_), + r->event_class_); } void Translator::disconnect_from_context (Context *c) { - for (translator_listener_record *r = get_listener_list (); r; r=r->next_) - c->events_below ()->remove_listener (r->get_listener_ (this), r->event_class_); -} - -static SCM listened_event_class_table; -void -ensure_listened_hash () -{ - if (!listened_event_class_table) - listened_event_class_table = scm_permanent_object (scm_c_make_hash_table (61)); -} - - -LY_DEFINE (ly_get_listened_event_classes, "ly:get-listened-event-classes", - 0, 0, 0, (), - "Return a list of all event classes that some translator listens" - " to.") -{ - ensure_listened_hash (); - return ly_hash_table_keys (listened_event_class_table); -} - -LY_DEFINE (ly_is_listened_event_class, "ly:is-listened-event-class", - 1, 0, 0, (SCM sym), - "Is @var{sym} a listened event class?") -{ - ensure_listened_hash (); - return scm_hashq_ref (listened_event_class_table, sym, SCM_BOOL_F); -} - -void -add_listened_event_class (SCM sym) -{ - ensure_listened_hash (); - scm_hashq_set_x (listened_event_class_table, sym, SCM_BOOL_T); + for (translator_listener_record *r = get_listener_list (); r; r = r->next_) + c->events_below ()->remove_listener (r->get_listener_ (this, r->event_class_), + r->event_class_); } - /* internally called once, statically, for each translator listener. Connects the name of an event class with a procedure that @@ -165,18 +143,20 @@ add_listened_event_class (SCM sym) */ void Translator::add_translator_listener (translator_listener_record **listener_list, - translator_listener_record *r, - Listener (*get_listener) (void *), - const char *ev_class) + translator_listener_record *r, + Listener (*get_listener) (void *, SCM), + 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 = replace_all (&name, '_', '-'); name += "-event"; - - SCM class_sym = scm_str2symbol (name.c_str ()); - - add_listened_event_class (class_sym); + + // we make the symbol permanent in order not to have to bother about + // the static translator_listener_record chains while garbage + // collecting. + + SCM class_sym = scm_permanent_object (scm_from_locale_symbol (name.c_str ())); r->event_class_ = class_sym; r->get_listener_ = get_listener; @@ -189,34 +169,34 @@ Translator::add_translator_listener (translator_listener_record **listener_list, */ SCM Translator::static_translator_description (const char *grobs, - const char *desc, - translator_listener_record *listener_list, - const char *read, - const char *write) const + const char *desc, + translator_listener_record *listener_list, + const char *read, + const char *write) const { - SCM static_properties = SCM_EOL; - - static_properties = scm_acons (ly_symbol2scm ("grobs-created"), - parse_symbol_list (grobs), static_properties); - - static_properties = scm_acons (ly_symbol2scm ("description"), - scm_from_locale_string (desc), static_properties); - + SCM static_properties = SCM_EOL; + + static_properties = scm_acons (ly_symbol2scm ("grobs-created"), + parse_symbol_list (grobs), static_properties); + + static_properties = scm_acons (ly_symbol2scm ("description"), + scm_from_locale_string (desc), static_properties); + SCM list = SCM_EOL; for (; listener_list; listener_list = listener_list->next_) list = scm_cons (listener_list->event_class_, list); static_properties = scm_acons (ly_symbol2scm ("events-accepted"), - list, static_properties); - - static_properties = scm_acons (ly_symbol2scm ("properties-read"), - parse_symbol_list (read), static_properties); - - static_properties = scm_acons (ly_symbol2scm ("properties-written"), - parse_symbol_list (write), static_properties); - - return static_properties; + list, static_properties); + + static_properties = scm_acons (ly_symbol2scm ("properties-read"), + parse_symbol_list (read), static_properties); + + static_properties = scm_acons (ly_symbol2scm ("properties-written"), + parse_symbol_list (write), static_properties); + + return static_properties; } - + /* SMOBS */ @@ -247,7 +227,7 @@ IMPLEMENT_TYPE_P (Translator, "ly:translator?"); bool Translator::must_be_last () const { - return must_be_last_; + return false; } void @@ -267,15 +247,15 @@ Translator::print_smob (SCM s, SCM port, scm_print_state *) void add_acknowledger (Engraver_void_function_engraver_grob_info ptr, - char const *func_name, - vector *ack_array) + char const *func_name, + vector *ack_array) { Acknowledge_information inf; inf.function_ = ptr; string interface_name (func_name); - interface_name = replace_all (interface_name, '_', '-'); + interface_name = replace_all (&interface_name, '_', '-'); interface_name += "-interface"; /* @@ -291,12 +271,11 @@ generic_get_acknowledger (SCM sym, vector const *ack_ar for (vsize i = 0; i < ack_array->size (); i++) { if (ack_array->at (i).symbol_ == sym) - return ack_array->at (i).function_; + return ack_array->at (i).function_; } return 0; } - Moment get_event_length (Stream_event *e) { @@ -311,7 +290,7 @@ Moment get_event_length (Stream_event *e, Moment now) { Moment len = get_event_length (e); - + if (now.grace_part_) { len.grace_part_ = len.main_part_; @@ -328,21 +307,21 @@ get_event_length (Stream_event *e, Moment now) bool internal_event_assignment (Stream_event **old_ev, Stream_event *new_ev, const char *function) { - if (*old_ev && - !to_boolean (scm_equal_p ((*old_ev)->self_scm (), - new_ev->self_scm ()))) + if (*old_ev + && !to_boolean (scm_equal_p ((*old_ev)->self_scm (), + new_ev->self_scm ()))) { /* extract event class from function name */ string ev_class = function; /* This assertion fails if EVENT_ASSIGNMENT was called outside a - translator listener. Don't do that. */ + translator listener. Don't do that. */ const char *prefix = "listen_"; assert (0 == ev_class.find (prefix)); /* "listen_foo_bar" -> "foo-bar" */ ev_class.erase (0, strlen (prefix)); - replace_all (ev_class, '_', '-'); + replace_all (&ev_class, '_', '-'); new_ev->origin ()->warning (_f ("Two simultaneous %s events, junking this one", ev_class.c_str ())); (*old_ev)->origin ()->warning (_f ("Previous %s event here", ev_class.c_str ())); @@ -356,7 +335,15 @@ internal_event_assignment (Stream_event **old_ev, Stream_event *new_ev, const ch } ADD_TRANSLATOR (Translator, - "Base class. Not instantiated.", - "", - "", - ""); + /* doc */ + "Base class. Not instantiated.", + + /* create */ + "", + + /* read */ + "", + + /* write */ + "" + );