2 translator-group.hh -- declare Translator_group
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #ifndef TRANSLATOR_GROUP_HH
10 #define TRANSLATOR_GROUP_HH
12 #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_);
40 class Translator_group
43 void precompute_method_bindings ();
44 Array<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];
51 VIRTUAL_COPY_CONSTRUCTOR (Translator_group, Translator_group);
52 DECLARE_SMOBS (Translator_group, dummy);
55 virtual Translator_group *get_daddy_translator ()const;
56 virtual SCM get_simple_trans_list ();
57 virtual bool try_music (Music *req);
58 virtual void initialize ();
59 virtual void finalize ();
61 void stop_translation_timestep ();
62 void start_translation_timestep ();
64 virtual void fetch_precomputable_methods (Translator_group_void_method[]);
68 void precomputed_translator_foreach (Translator_precompute_index);
69 void call_precomputed_self_method (Translator_precompute_index);
72 Context * context () const { return context_; }
74 SCM simple_trans_list_;
75 SCM accept_hash_table_;
78 friend class Context_def;
79 virtual void derived_mark () const;
82 SCM names_to_translators (SCM namelist, Context *tg);
83 void recurse_over_translators (Context *c, Translator_method ptr,
84 Translator_group_method ptr2, Direction);
85 void precomputed_recurse_over_translators (Context *c, Translator_precompute_index idx, Direction dir);
86 Translator_group *get_translator_group (SCM sym);
88 #define ADD_TRANSLATOR_GROUP(classname, desc, grobs, accepted, read, write) \
90 DECLARE_UNSMOB (Translator_group, translator_group);
92 #endif // TRANSLATOR_GROUP_HH