2 context.hh -- declare Context
4 source file of the GNU LilyPond music typesetter
6 (c) 2004--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
16 #include "lily-proto.hh"
17 #include "virtual-methods.hh"
21 Scheme_hash_table *properties_dict () const;
22 Context (Context const &src);
24 DECLARE_SMOBS (Context, dummy);
25 DECLARE_CLASSNAME(Context);
29 friend class Context_handle;
33 map<string, int> grob_counts_;
34 map<string, int> context_counts_;
37 Object_key const *key_;
38 Context *daddy_context_;
45 Translator_group *implementation_;
48 friend class Context_def;
49 void clear_key_disambiguations ();
52 Object_key const *key () const { return key_; }
53 Object_key const *create_grob_key (string);
54 Object_key const *get_grob_key (string);
55 Object_key const *get_context_key (string, string);
57 Context *create_context (Context_def *, string, SCM);
58 string id_string () const { return id_string_; }
59 SCM children_contexts () const { return context_list_; }
60 SCM default_child_context_name () const;
62 Translator_group *implementation () const { return implementation_; }
63 Context *get_parent_context () const;
64 Context (Object_key const *);
67 SCM internal_get_property (SCM name_sym) const;
68 SCM properties_as_alist () const;
69 void internal_set_property (SCM var_sym, SCM value);
70 Context *where_defined (SCM name_sym, SCM *value) const;
71 void unset_property (SCM var_sym);
73 Context *remove_context (Context *trans);
74 void check_removal ();
75 string context_name () const;
76 SCM context_name_symbol () const;
77 Global_context *get_global_context () const;
79 virtual Score_context *get_score_context () const;
80 virtual Output_def *get_output_def () const;
81 virtual Moment now_mom () const;
82 virtual Context *get_default_interpreter ();
84 bool is_alias (SCM) const;
86 void add_context (Context *trans);
87 bool is_bottom_context () const;
88 bool is_removable () const;
89 bool try_music (Music *);
91 Context *find_create_context (SCM context_name,
93 Context *create_unique_context (SCM context_name,
95 vector<Context*> path_to_acceptable_context (SCM alias,
103 void apply_property_operations (Context *tg, SCM pre_init_ops);
104 void execute_pushpop_property (Context *trg, SCM prop, SCM eltprop, SCM val);
105 void execute_general_pushpop_property (Context *context,
106 SCM context_property, SCM grob_property_path, SCM val);
107 SCM updated_grob_properties (Context *tg, SCM sym);
108 Context *find_context_below (Context *where,
109 SCM type_sym, string id);
110 bool melisma_busy (Context *);
112 Context *get_voice_to_lyrics (Context *lyrics);
113 Grob *get_current_note_head (Context *voice);
114 Grob *get_current_rest (Context *voice);
115 DECLARE_UNSMOB (Context, context);
117 Moment measure_position (Context const *context);
118 Rational measure_length (Context const *context);
119 void set_context_property_on_children (Context *trans, SCM sym, SCM val);
121 #endif /* CONTEXT_HH */