2 translator-group.hh -- declare Translator_group
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #ifndef TRANSLATOR_GROUP_HH
10 #define TRANSLATOR_GROUP_HH
12 #include "listener.hh"
13 #include "translator.hh"
14 #include "std-vector.hh"
16 typedef void (Translator:: *Translator_method) (void);
17 typedef void (Translator_group:: *Translator_group_method) (void);
18 typedef void (*Translator_group_void_method) (Translator_group *);
20 struct Translator_method_binding
22 Translator *translator_;
23 Translator_void_method_ptr method_;
25 Translator_method_binding ()
28 Translator_method_binding (Translator *tr, Translator_void_method_ptr ptr)
36 (*method_) (translator_);
40 class Translator_group
43 void precompute_method_bindings ();
44 vector<Translator_method_binding>
45 precomputed_method_bindings_[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
47 Translator_group_void_method
48 precomputed_self_method_bindings_[TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
50 DECLARE_LISTENER (create_child_translator);
51 DECLARE_LISTENER (eat_event);
54 VIRTUAL_COPY_CONSTRUCTOR (Translator_group, Translator_group);
55 DECLARE_SMOBS (Translator_group, dummy);
58 virtual void connect_to_context (Context *c);
59 virtual void disconnect_from_context ();
60 virtual Translator_group *get_daddy_translator ()const;
61 virtual SCM get_simple_trans_list ();
62 virtual bool try_music (Music *req);
63 virtual void initialize ();
64 virtual void finalize ();
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_;
79 SCM accept_hash_table_;
82 friend class Context_def;
83 virtual void derived_mark () const;
86 SCM names_to_translators (SCM namelist, Context *tg);
87 void recurse_over_translators (Context *c, Translator_method ptr,
88 Translator_group_method ptr2, Direction);
89 void precomputed_recurse_over_translators (Context *c, Translator_precompute_index idx, Direction dir);
90 Translator_group *get_translator_group (SCM sym);
93 #define ADD_TRANSLATOR_GROUP(classname, desc, grobs, accepted, read, write) foobar
95 DECLARE_UNSMOB (Translator_group, translator_group);
97 #endif // TRANSLATOR_GROUP_HH