2 translator-group.hh -- declare Translator_group
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #ifndef TRANSLATOR_GROUP_HH
11 #define TRANSLATOR_GROUP_HH
14 #include "lily-proto.hh"
15 #include "virtual-methods.hh"
16 #include "translator.hh"
21 typedef void (Translator::*Method_pointer) (void);
22 #define set_property(x,y) internal_set_property(ly_symbol2scm(x),y)
24 class Scheme_hash_table;
27 /** Make some kind of Elements from Requests. Elements are made by
28 hierarchically grouped Translators
30 class Translator_group : public virtual Translator {
32 Scheme_hash_table *properties_dict () const;
35 friend class Interpretation_context_handle;
36 SCM add_translator (SCM, Translator*);
41 void execute_single_pushpop_property (SCM prop, SCM sym, SCM val);
42 SCM internal_get_property (SCM name_sym) const;
44 void unset_property (SCM var_sym);
45 void internal_set_property (SCM var_sym, SCM value);
46 Translator_group *where_defined (SCM name_sym) const;
50 VIRTUAL_COPY_CONS (Translator);
51 Translator_group (Translator_group const &);
53 void add_fresh_group_translator (Translator *trans);
54 void add_used_group_translator (Translator *trans);
56 /// Score_register = 0, Staff_registers = 1, etc)
57 Translator_group* get_ancestor (int l=1);
58 int get_depth () const;
59 bool is_bottom_translator_b () const;
60 bool removable_b () const;
61 void terminate_translator (Translator*r);
62 Translator *remove_translator (Translator*trans);
63 void check_removal ();
64 // Translator *get_simple_translator (String) const;
65 Translator_group *find_existing_translator (String n, String id);
66 Translator_group *find_create_translator (String n, String id);
67 Link_array<Translator_group> path_to_acceptable_translator (String alias, Music_output_def*) const;
68 Translator_group*get_default_interpreter ();
71 bool try_music_on_nongroup_children (Music *m);
73 virtual void do_announces ();
74 virtual bool try_music (Music* req);
75 virtual void stop_translation_timestep ();
76 virtual void start_translation_timestep ();
77 virtual void initialize ();
78 virtual void finalize ();
79 virtual void each (Method_pointer);
82 #endif // TRANSLATOR_GROUP_HH