X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fcontext.hh;h=5543235c25d4b668d2140300697bcb2914a68799;hb=e48715dc917b0e1c8382dc47e2b5e193d3184000;hp=2cb0280ea128cb59076f7ce1d07463358fd007c2;hpb=87eedcd59f4082cb0841528ad5bc82cb1d1191e3;p=lilypond.git diff --git a/lily/include/context.hh b/lily/include/context.hh index 2cb0280ea1..5543235c25 100644 --- a/lily/include/context.hh +++ b/lily/include/context.hh @@ -1,20 +1,32 @@ /* - context.hh -- declare Context + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 2004--2012 Han-Wen Nienhuys - (c) 2004--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 . */ #ifndef CONTEXT_HH #define CONTEXT_HH +#include "duration.hh" +#include "lily-proto.hh" #include "listener.hh" #include "moment.hh" +#include "scm-hash.hh" #include "std-vector.hh" #include "virtual-methods.hh" -#include "scm-hash.hh" -#include "lily-proto.hh" class Context { @@ -22,13 +34,14 @@ class Context Context (Context const &src); DECLARE_SMOBS (Context); - DECLARE_CLASSNAME(Context); + DECLARE_CLASSNAME (Context); void terminate (); private: friend class Context_handle; - int iterator_count_; - + /* how many Context_handles point to this Context */ + int client_count_; + /* Used internally by create_context */ Stream_event *infant_event_; @@ -38,14 +51,14 @@ protected: SCM definition_; /* Additions to the Context_def, given by \with */ SCM definition_mods_; - + SCM properties_scm_; SCM context_list_; SCM accepts_list_; SCM aliases_; Translator_group *implementation_; string id_string_; - + /* Events reported in the context is sent to this dispatcher. */ Dispatcher *event_source_; @@ -62,7 +75,7 @@ protected: DECLARE_LISTENER (set_property_from_event); DECLARE_LISTENER (unset_property_from_event); - + public: string id_string () const { return id_string_; } SCM children_contexts () const { return context_list_; } @@ -85,11 +98,8 @@ public: Context *where_defined (SCM name_sym, SCM *value) const; void unset_property (SCM var_sym); -#ifndef NDEBUG - void internal_set_property (SCM var_sym, SCM value, char const *file, int line, char const *fun); -#else + void instrumented_set_property (SCM, SCM, const char *, int, const char *); void internal_set_property (SCM var_sym, SCM value); -#endif Context *create_context (Context_def *, string, SCM); DECLARE_LISTENER (create_context_from_event); @@ -105,7 +115,14 @@ public: virtual Context *get_score_context () const; virtual Output_def *get_output_def () const; virtual Moment now_mom () const; - virtual Context *get_default_interpreter (); + virtual Context *get_default_interpreter (string context_id = ""); + + // It would make some sense to have the following just available in + // a global context. It would be decidedly tricky, however, to have + // it initialized before the constructor of its Context base class + // was able to trigger garbage collection. + SCM ancestor_lookup_; + SCM make_event_class (SCM); bool is_alias (SCM) const; void add_alias (SCM); @@ -114,11 +131,10 @@ public: bool is_removable () const; Context *find_create_context (SCM context_name, - string id, SCM ops); + string id, SCM ops); Context *create_unique_context (SCM context_name, string context_id, - SCM ops); - vector path_to_acceptable_context (SCM alias, - Output_def *) const; + SCM ops); + vector path_to_acceptable_context (SCM alias) const; }; /* @@ -126,29 +142,40 @@ public: */ void apply_property_operations (Context *tg, SCM pre_init_ops); +void execute_revert_property (Context *context, + SCM context_property, + SCM grob_property_path); void execute_pushpop_property (Context *trg, SCM prop, SCM eltprop, SCM val); -void execute_general_pushpop_property (Context *context, - SCM context_property, SCM grob_property_path, SCM val); +void sloppy_general_pushpop_property (Context *context, + SCM context_property, SCM grob_property_path, SCM val); SCM updated_grob_properties (Context *tg, SCM sym); Context *find_context_below (Context *where, - SCM type_sym, string id); + SCM type_sym, string id); bool melisma_busy (Context *); Context *get_voice_to_lyrics (Context *lyrics); -Grob *get_current_note_head (Context *voice); +Grob *get_current_note_head (Context *voice, bool include_grace_notes); Grob *get_current_rest (Context *voice); DECLARE_UNSMOB (Context, context); Moment measure_position (Context const *context); +Moment measure_position (Context const *context, Duration const *dur); Rational measure_length (Context const *context); +int measure_number (Context const *context); + +bool check_repeat_count_visibility (Context const *context, SCM count); + void set_context_property_on_children (Context *trans, SCM sym, SCM val); /* Shorthand for creating and broadcasting stream events. */ -#define send_stream_event(ctx, type, origin, ...) \ -{ \ - SCM props[] = { __VA_ARGS__, 0 }; \ - ctx->internal_send_stream_event (ly_symbol2scm (type), origin, props); \ +#define send_stream_event(ctx, type, origin, ...) \ +{ \ + SCM props[] = { __VA_ARGS__, 0 }; \ + ctx->internal_send_stream_event (ly_symbol2scm (type), origin, props); \ } -#endif /* CONTEXT_HH */ +SCM nested_property_alist (SCM alist, SCM prop_path, SCM value); +SCM nested_property_revert_alist (SCM alist, SCM prop_path); +SCM evict_from_alist (SCM, SCM, SCM); +#endif /* CONTEXT_HH */