2 translator-group.hh -- declare Translator_group
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #ifndef TRANSLATOR_GROUP_HH
10 #define TRANSLATOR_GROUP_HH
12 #include "listener.hh"
13 #include "translator.hh"
15 typedef void (Translator:: *Translator_method) (void);
16 typedef void (Translator_group:: *Translator_group_method) (void);
17 typedef void (*Translator_group_void_method) (Translator_group *);
19 struct Translator_method_binding
21 Translator *translator_;
22 Translator_void_method_ptr method_;
24 Translator_method_binding ()
27 Translator_method_binding (Translator *tr, Translator_void_method_ptr ptr)
35 (*method_) (translator_);
39 class Translator_group
42 void precompute_method_bindings ();
43 vector<Translator_method_binding>
44 precomputed_method_bindings_[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
46 Translator_group_void_method
47 precomputed_self_method_bindings_[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
49 SCM protected_events_;
51 DECLARE_LISTENER (create_child_translator);
54 VIRTUAL_COPY_CONSTRUCTOR (Translator_group, Translator_group);
55 DECLARE_SMOBS (Translator_group);
58 virtual void connect_to_context (Context *c);
59 virtual void disconnect_from_context ();
60 virtual SCM get_simple_trans_list ();
61 virtual void initialize ();
62 virtual void finalize ();
64 void protect_event (SCM ev);
66 void stop_translation_timestep ();
67 void start_translation_timestep ();
69 virtual void fetch_precomputable_methods (Translator_group_void_method[]);
73 void precomputed_translator_foreach (Translator_precompute_index);
74 void call_precomputed_self_method (Translator_precompute_index);
76 Context *context () const { return context_; }
78 SCM simple_trans_list_;
81 friend class Context_def;
82 virtual void derived_mark () const;
85 SCM names_to_translators (SCM namelist, Context *tg);
86 void recurse_over_translators (Context *c, Translator_method ptr,
87 Translator_group_method ptr2, Direction);
88 void precomputed_recurse_over_translators (Context *c, Translator_precompute_index idx, Direction dir);
89 Translator_group *get_translator_group (SCM sym);
92 #define ADD_TRANSLATOR_GROUP(classname, desc, grobs, read, write) foobar
94 DECLARE_UNSMOB (Translator_group, translator_group);
96 #endif // TRANSLATOR_GROUP_HH