2 translator.hh -- declare Translator
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
13 #include "global-ctor.hh"
15 #include "lily-proto.hh"
16 #include "virtual-methods.hh"
17 #include "lily-guile.hh"
22 /** Make some kind of #Element#s from Requests. Elements are made by
23 hierarchically grouped #Translator#s
25 class Translator : public Input {
28 Music_output_def * output_def_l_;
31 virtual const char *name () const;
32 bool is_alias_b (String) const;
34 VIRTUAL_COPY_CONS (Translator);
35 Translator (Translator const &);
38 Translator_group * daddy_trans_l_ ;
43 void removal_processing ();
45 ask daddy for a feature
47 Music_output_def *output_def_l () const;
49 SCM get_property (const char *) const;
50 SCM get_property (SCM symbol) const;
52 virtual Moment now_mom () const;
55 ugh: bubbled up from Translator_group.
57 SCM simple_trans_list_;
58 SCM trans_group_list_;
62 DECLARE_SMOBS (Translator, dummy);
66 try to fit the request in this engraver
69 false: not noted, not taken.
71 true: request swallowed. Don't try to put the request elsewhere.
74 virtual bool try_music (Music *req_l);
75 virtual void stop_translation_timestep ();
76 virtual void start_translation_timestep ();
77 virtual void do_announces () ;
78 virtual void initialize () ;
79 virtual void finalize ();
84 A macro to automate administration of translators.
86 #define ADD_THIS_TRANSLATOR(T) \
87 static void _ ## T ## _adder () {\
89 t->type_str_ = classname (t);\
92 ADD_GLOBAL_CTOR (_ ## T ## _adder);
96 extern Dictionary<Translator*> *global_translator_dict_p;
97 void add_translator (Translator*trans_p);
99 Translator*get_translator_l (String s);
100 Translator *unsmob_translator (SCM);
101 #endif // TRANSLATOR_HH