X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fcontext.hh;h=31c436a9367c9db1c448dbc5f9b12ad78f8cd51b;hb=0e5d83a9ceb4a143f83d22406d7eb816314ff9f7;hp=22e7e142210fa7acf041551a59366a0873199db6;hpb=31568c504806f35aac420a394c9eab07abd9faa7;p=lilypond.git diff --git a/lily/include/context.hh b/lily/include/context.hh index 22e7e14221..31c436a936 100644 --- a/lily/include/context.hh +++ b/lily/include/context.hh @@ -3,17 +3,18 @@ source file of the GNU LilyPond music typesetter - (c) 2004--2006 Han-Wen Nienhuys + (c) 2004--2009 Han-Wen Nienhuys */ #ifndef CONTEXT_HH #define CONTEXT_HH -#include -using namespace std; - -#include "moment.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" class Context @@ -21,62 +22,85 @@ class Context Scheme_hash_table *properties_dict () const; Context (Context const &src); - DECLARE_SMOBS (Context, dummy); + DECLARE_SMOBS (Context); DECLARE_CLASSNAME(Context); void terminate (); private: friend class Context_handle; int iterator_count_; - bool init_; - - map grob_counts_; - map context_counts_; + + /* Used internally by create_context */ + Stream_event *infant_event_; protected: - Object_key const *key_; Context *daddy_context_; + /* The used Context_def */ 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_; + + /* Events reported to this context or recursively in any of its + children, are sent to this dispatcher. */ + Dispatcher *events_below_; + // Translator_group is allowed to set implementation_. + friend class Translator_group; + // Context_def::instantiate initialises some protected members. friend class Context_def; - void clear_key_disambiguations (); + // UGH! initialises implementation_ + friend SCM ly_make_global_translator (SCM); + DECLARE_LISTENER (set_property_from_event); + DECLARE_LISTENER (unset_property_from_event); + public: - Object_key const *key () const { return key_; } - Object_key const *create_grob_key (string); - Object_key const *get_grob_key (string); - Object_key const *get_context_key (string, string); - - Context *create_context (Context_def *, string, SCM); string id_string () const { return id_string_; } SCM children_contexts () const { return context_list_; } SCM default_child_context_name () const; + 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[]); + + SCM get_definition () const { return definition_; } + SCM get_definition_mods () const { return definition_mods_; } + Translator_group *implementation () const { return implementation_; } Context *get_parent_context () const; - Context (Object_key const *); + Context (); /* properties: */ SCM internal_get_property (SCM name_sym) const; SCM properties_as_alist () const; - void internal_set_property (SCM var_sym, SCM value); Context *where_defined (SCM name_sym, SCM *value) const; void unset_property (SCM var_sym); - Context *remove_context (Context *trans); + 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 *, string, SCM); + DECLARE_LISTENER (create_context_from_event); + DECLARE_LISTENER (acknowledge_infant); + DECLARE_LISTENER (remove_context); + DECLARE_LISTENER (change_parent); + void disconnect_from_parent (); void check_removal (); string context_name () const; SCM context_name_symbol () const; Global_context *get_global_context () const; - virtual Score_context *get_score_context () const; + virtual Context *get_score_context () const; virtual Output_def *get_output_def () const; virtual Moment now_mom () const; virtual Context *get_default_interpreter (); @@ -86,14 +110,12 @@ public: void add_context (Context *trans); bool is_bottom_context () const; bool is_removable () const; - bool try_music (Music *); Context *find_create_context (SCM context_name, string id, SCM ops); - Context *create_unique_context (SCM context_name, + Context *create_unique_context (SCM context_name, string context_id, SCM ops); - vector path_to_acceptable_context (SCM alias, - Output_def *) const; + vector path_to_acceptable_context (SCM alias) const; }; /* @@ -101,8 +123,11 @@ 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, +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, @@ -115,8 +140,21 @@ 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); 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); \ +} + +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 */