source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#ifndef TRANSLATOR_HH
#define TRANSLATOR_HH
+#include "global-ctor.hh"
#include "string.hh"
#include "lily-proto.hh"
#include "virtual-methods.hh"
+#include "lily-guile.hh"
+#include "parray.hh"
+#include "input.hh"
+#include "smobs.hh"
-class Translator {
+#define get_property(x) internal_get_property(ly_symbol2scm(x))
+
+
+#define TRANSLATOR_DECLARATIONS(NAME) \
+public: \
+ NAME();\
+ VIRTUAL_COPY_CONS (Translator); \
+ static SCM static_description_; \
+ virtual SCM static_translator_description () const; \
+ virtual SCM translator_description () const;
+
+/** Make some kind of #Element#s from Requests. Elements are made by
+ hierarchically grouped #Translator#s
+ */
+class Translator : public Input {
+ void init ();
public:
- String id_str_;
+ Music_output_def * output_def_l_;
+ String type_str_;
+
+ bool is_alias_b (String) const;
- int iterator_count_;
-
- virtual Global_translator *global_l() { return 0; }
-
- /// Score_register = 0, Staff_registers = 1, etc)
- virtual void print()const;
- virtual int depth_i()const=0;
- virtual bool is_bottom_engraver_b() const { return false; }
- virtual bool try_request (Request*);
- virtual Translator *find_get_translator_l (String name, String id)=0;
- virtual Translator *ancestor_l (int l=1)=0;
- virtual ~Translator(){}
- DECLARE_MY_RUNTIME_TYPEINFO;
- Translator();
- virtual Translator *get_default_interpreter()=0;
+
+ Translator (Translator const &);
+
+
+ Translator_group * daddy_trans_l_ ;
+ DECLARE_SCHEME_CALLBACK(name, (SCM trans));
+ DECLARE_SCHEME_CALLBACK(description,(SCM trans));
+ void announces ();
+
+ void removal_processing ();
+ /**
+ ask daddy for a feature
+ */
+ Music_output_def *output_def_l () const;
+
+ SCM internal_get_property (SCM symbol) const;
+
+ virtual Moment now_mom () const;
+
+ /*
+ ugh: bubbled up from Translator_group.
+ */
+ SCM simple_trans_list_;
+ SCM trans_group_list_;
+ SCM definition_;
+
+ SCM properties_scm_;
+ DECLARE_SMOBS (Translator, dummy);
+
+public:
+ TRANSLATOR_DECLARATIONS(Translator);
+ /**
+ try to fit the request in this engraver
+
+ @return
+ false: not noted, not taken.
+
+ true: request swallowed. Don't try to put the request elsewhere.
+
+ */
+ virtual bool try_music (Music *req_l);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void do_announces () ;
+ virtual void initialize () ;
+ virtual void finalize ();
};
+
+/**
+ A macro to automate administration of translators.
+ */
+#define ADD_THIS_TRANSLATOR(T) \
+SCM T::static_description_ = SCM_EOL;\
+static void _ ## T ## _adder () {\
+ T *t = new T;\
+ T::static_description_ = t->static_translator_description ();\
+ scm_permanent_object (T::static_description_);\
+ t->type_str_ = classname (t);\
+ add_translator (t);\
+}\
+SCM T::translator_description() const\
+{ \
+ return static_description_;\
+}\
+ADD_GLOBAL_CTOR (_ ## T ## _adder);
+
+
+
+
+#define ENTER_DESCRIPTION(classname,desc,grobs,acked,read,write) \
+ADD_THIS_TRANSLATOR (classname);\
+SCM \
+classname::static_translator_description () const \
+{ \
+ SCM static_properties= SCM_EOL; \
+ /* static_properties= acons (name ,gh_str02scm (Translator::name (self_scm ())), \
+ static_properties_); \
+ */ \
+ static_properties= scm_acons (ly_symbol2scm ("grobs-created"), \
+ parse_symbol_list (grobs), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("description"), \
+ ly_str02scm (desc), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("interfaces-acked"), \
+ parse_symbol_list (acked), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("properties-read"), \
+ parse_symbol_list (read), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("properties-written"), \
+ parse_symbol_list (write), static_properties); \
+ \
+ return static_properties; \
+}
+
+
+
+extern Dictionary<Translator*> *global_translator_dict_p;
+void add_translator (Translator*trans_p);
+
+Translator*get_translator_l (String s);
+DECLARE_UNSMOB(Translator,translator);
#endif // TRANSLATOR_HH
projects / lilypond.git / blobdiff