X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fcontext.hh;h=42fb15aaa30fd93bcdec58cac74f978f5da057a2;hb=97a0169312a260933246ab224e4f8b0969871dd5;hp=69bac839a5c7260ad73b207fe83585f6979b5078;hpb=058370efc7e9710f149d0f444328bb1fcd7bdec1;p=lilypond.git diff --git a/lily/include/context.hh b/lily/include/context.hh index 69bac839a5..42fb15aaa3 100644 --- a/lily/include/context.hh +++ b/lily/include/context.hh @@ -1,7 +1,7 @@ /* This file is part of LilyPond, the GNU music typesetter. - Copyright (C) 2004--2014 Han-Wen Nienhuys + Copyright (C) 2004--2015 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 @@ -28,12 +28,17 @@ #include "std-vector.hh" #include "virtual-methods.hh" -class Context +class Context : public Smob { +public: + SCM mark_smob () const; + int print_smob (SCM, scm_print_state *) const; + static const char * const type_p_name_; + virtual ~Context (); +private: Scheme_hash_table *properties_dict () const; - Context (Context const &src); + Context (Context const &src); // Do not define! Not copyable! - DECLARE_SMOBS (Context); DECLARE_CLASSNAME (Context); void terminate (); @@ -46,6 +51,7 @@ private: Stream_event *infant_event_; protected: + virtual void derived_mark () const; Context *daddy_context_; /* The used Context_def */ SCM definition_; @@ -74,8 +80,8 @@ protected: // UGH! initialises implementation_ friend SCM ly_make_global_translator (SCM); - DECLARE_LISTENER (set_property_from_event); - DECLARE_LISTENER (unset_property_from_event); + void set_property_from_event (SCM); + void unset_property_from_event (SCM); public: string id_string () const { return id_string_; } @@ -84,8 +90,17 @@ public: Dispatcher *event_source () const { return event_source_; } Dispatcher *events_below () const { return events_below_; } - void internal_send_stream_event (SCM type, Input *origin, SCM props[]); - + void internal_send_stream_event (SCM type, Input *origin); + void internal_send_stream_event (SCM type, Input *origin, + SCM prop, SCM val); + void internal_send_stream_event (SCM type, Input *origin, + SCM prop, SCM val, SCM prop2, SCM val2); + void internal_send_stream_event (SCM type, Input *origin, + SCM prop, SCM val, SCM prop2, SCM val2, + SCM prop3, SCM val3); + void internal_send_stream_event (SCM type, Input *origin, + SCM prop, SCM val, SCM prop2, SCM val2, + SCM prop3, SCM val3, SCM prop4, SCM val4); SCM get_definition () const { return definition_; } SCM get_definition_mods () const { return definition_mods_; } @@ -97,16 +112,17 @@ public: SCM internal_get_property (SCM name_sym) const; SCM properties_as_alist () const; Context *where_defined (SCM name_sym, SCM *value) const; + bool here_defined (SCM name_sym, SCM *value) const; void unset_property (SCM var_sym); void instrumented_set_property (SCM, SCM, const char *, int, const char *); void internal_set_property (SCM var_sym, SCM value); Context *create_context (Context_def *, const string&, SCM); - DECLARE_LISTENER (create_context_from_event); - DECLARE_LISTENER (acknowledge_infant); - DECLARE_LISTENER (remove_context); - DECLARE_LISTENER (change_parent); + void create_context_from_event (SCM); + void acknowledge_infant (SCM); + void remove_context (SCM); + void change_parent (SCM); void disconnect_from_parent (); void check_removal (); string context_name () const; @@ -136,21 +152,39 @@ 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 sloppy_general_pushpop_property (Context *context, - SCM context_property, SCM grob_property_path, SCM val); -SCM updated_grob_properties (Context *tg, SCM sym); + +// Search for a context of the given type starting from the given context and +// moving toward the root of the tree. If the starting context matches, it is +// returned. +Context *find_context_above (Context *where, SCM type_sym); + +// Search for a context of the given type starting from the given context and +// moving toward the root of the tree. If found, return its child that was +// found on the way there. +Context *find_context_above_by_parent_type (Context *where, SCM parent_type); + +// Search for a context of the given type and ID starting from the given +// context and moving toward the leaves of the tree. If the starting context +// matches, it is returned. An empty ID matches any context of the given type. Context *find_context_below (Context *where, SCM type_sym, const string &id); + +// Search for a context of the given type and ID starting with the given +// context, then searching its descendants, then its parent's descendants, etc. +// An empty ID matches any context of the given type. +Context *find_context_near (Context *where, + SCM type_sym, const string &id); + +// Search for the top context (i.e. the ancestor with no parent) starting with +// the given context. +Context *find_top_context (Context *where); + bool melisma_busy (Context *); Context *get_voice_to_lyrics (Context *lyrics); -Grob *get_current_note_head (Context *voice, bool include_grace_notes); +Grob *get_current_note_head (Context *voice); 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); @@ -162,14 +196,20 @@ 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, ...) \ + ctx->internal_send_stream_event (ly_symbol2scm (type), origin, ##__VA_ARGS__) SCM nested_property_alist (SCM alist, SCM prop_path, SCM value); -SCM nested_property_revert_alist (SCM alist, SCM prop_path); +SCM nested_property (SCM alist, SCM prop_path, SCM fallback = SCM_EOL); +SCM nested_create_alist (SCM prop_path, SCM value); +SCM partial_list_copy (SCM alist, SCM tail, SCM newtail); +SCM assq_tail (SCM key, SCM alist, SCM alist_end); +SCM assv_tail (SCM key, SCM alist, SCM alist_end); +SCM assoc_tail (SCM key, SCM alist, SCM alist_end); SCM evict_from_alist (SCM, SCM, SCM); +SCM nalist_to_alist (SCM nalist, int nested); +extern SCM ly_context_set_property_x_proc; +extern SCM ly_context_unset_property_proc; +extern SCM ly_context_matched_pop_property_proc; #endif /* CONTEXT_HH */