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 (eat_event);
53 VIRTUAL_COPY_CONSTRUCTOR (Translator_group, Translator_group);
54 DECLARE_SMOBS (Translator_group, dummy);
57 void connect_to_context (Context *c);
58 virtual Translator_group *get_daddy_translator ()const;
59 virtual SCM get_simple_trans_list ();
60 virtual bool try_music (Music *req);
61 virtual void initialize ();
62 virtual void finalize ();
64 void stop_translation_timestep ();
65 void start_translation_timestep ();
67 virtual void fetch_precomputable_methods (Translator_group_void_method[]);
71 void precomputed_translator_foreach (Translator_precompute_index);
72 void call_precomputed_self_method (Translator_precompute_index);
74 Context *context () const { return context_; }
76 SCM simple_trans_list_;
77 SCM accept_hash_table_;
80 friend class Context_def;
81 virtual void derived_mark () const;
84 SCM names_to_translators (SCM namelist, Context *tg);
85 void recurse_over_translators (Context *c, Translator_method ptr,
86 Translator_group_method ptr2, Direction);
87 void precomputed_recurse_over_translators (Context *c, Translator_precompute_index idx, Direction dir);
88 Translator_group *get_translator_group (SCM sym);
91 #define ADD_TRANSLATOR_GROUP(classname, desc, grobs, accepted, read, write) foobar
93 DECLARE_UNSMOB (Translator_group, translator_group);
95 #endif // TRANSLATOR_GROUP_HH