2 context.hh -- declare Context
4 source file of the GNU LilyPond music typesetter
6 (c) 2004--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
15 #include "lily-proto.hh"
19 Scheme_hash_table *properties_dict () const;
20 Context (Context const &src);
22 DECLARE_SMOBS (Context, dummy);
27 friend class Context_handle;
31 std::map<String, int> grob_counts_;
32 std::map<String, int> context_counts_;
35 Object_key const *key_;
36 Context *daddy_context_;
43 Translator_group *implementation_;
46 friend class Context_def;
47 void clear_key_disambiguations ();
50 Object_key const *get_key () const;
51 Object_key const *get_grob_key (String);
52 Object_key const *get_context_key (String, String);
54 Context *create_context (Context_def *, String, SCM);
55 String id_string () const { return id_string_; }
56 SCM children_contexts () const { return context_list_; }
57 SCM default_child_context_name () const;
59 Translator_group *implementation () const { return implementation_; }
60 Context *get_parent_context () const;
61 Context (Object_key const *);
64 void execute_pushpop_property (SCM prop, SCM sym, SCM val);
65 SCM internal_get_property (SCM name_sym) const;
66 SCM properties_as_alist () const;
67 void internal_set_property (SCM var_sym, SCM value);
68 Context *where_defined (SCM name_sym, SCM *value) const;
69 void unset_property (SCM var_sym);
71 Context *remove_context (Context *trans);
72 void check_removal ();
73 String context_name () const;
74 SCM context_name_symbol () const;
75 Global_context *get_global_context () const;
77 virtual Score_context *get_score_context () const;
78 virtual Output_def *get_output_def () const;
79 virtual Moment now_mom () const;
80 virtual Context *get_default_interpreter ();
82 bool is_alias (SCM) const;
84 void add_context (Context *trans);
85 bool is_bottom_context () const;
86 bool is_removable () const;
87 bool try_music (Music *);
89 Context *find_create_context (SCM context_name,
91 Context *create_unique_context (SCM context_name,
93 Link_array<Context> path_to_acceptable_context (SCM alias,
101 void apply_property_operations (Context *tg, SCM pre_init_ops);
102 void execute_pushpop_property (Context *trg, SCM prop, SCM eltprop, SCM val);
103 SCM updated_grob_properties (Context *tg, SCM sym);
104 Context *find_context_below (Context *where,
105 SCM type_sym, String id);
106 bool melisma_busy (Context *);
108 Context *get_voice_to_lyrics (Context *lyrics);
109 Grob *get_current_note_head (Context *voice);
110 Grob *get_current_rest (Context *voice);
111 DECLARE_UNSMOB (Context, context);
113 Moment measure_position (Context const *context);
114 Rational measure_length (Context const *context);
116 #endif /* CONTEXT_HH */