2 context.hh -- declare Context
4 source file of the GNU LilyPond music typesetter
6 (c) 2004--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
13 #include "std-vector.hh"
15 #include "lily-proto.hh"
16 #include "virtual-methods.hh"
17 #include "context-key-manager.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;
35 Context *daddy_context_;
37 Context_key_manager key_manager_;
43 Translator_group *implementation_;
46 friend class Context_def;
47 void clear_key_disambiguations ();
51 Object_key const *get_grob_key (string name);
52 Object_key const *get_context_key (string name, string id);
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;
58 int get_unique() { return unique_; }
60 Translator_group *implementation () const { return implementation_; }
61 Context *get_parent_context () const;
62 Context (Object_key const *);
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, string context_id,
93 vector<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 void execute_general_pushpop_property (Context *context,
104 SCM context_property, SCM grob_property_path, SCM val);
105 SCM updated_grob_properties (Context *tg, SCM sym);
106 Context *find_context_below (Context *where,
107 SCM type_sym, string id);
108 bool melisma_busy (Context *);
110 Context *get_voice_to_lyrics (Context *lyrics);
111 Grob *get_current_note_head (Context *voice);
112 Grob *get_current_rest (Context *voice);
113 DECLARE_UNSMOB (Context, context);
115 Moment measure_position (Context const *context);
116 Rational measure_length (Context const *context);
117 void set_context_property_on_children (Context *trans, SCM sym, SCM val);
119 #endif /* CONTEXT_HH */