/*
- acceptor.hh -- declare Translator
+ translator.hh -- declare Translator
source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#ifndef ACCEPTOR_HH
-#define ACCEPTOR_HH
+#ifndef TRANSLATOR_HH
+#define TRANSLATOR_HH
+#include "global-ctor.hh"
#include "string.hh"
#include "lily-proto.hh"
-#include "interpreter.hh"
#include "virtual-methods.hh"
+#include "lily-guile.hh"
+#include "input.hh"
+#include "smobs.hh"
-class Translator {
-public:
- String id_str_;
-
- int iterator_count_;
-
- virtual Interpreter * interpreter_l() { return 0; }
-
- /// Score_register = 0, Staff_registers = 1, etc)
- virtual int depth_i()const=0;
- virtual Translator *find_get_translator_l(String name, String id)=0;
- virtual Translator *ancestor_l(int l=1)=0;
- virtual ~Translator(){}
- NAME_MEMBERS();
- Translator();
- virtual Translator *get_default_interpreter()=0;
-};
+#define get_property(x) internal_get_property(ly_symbol2scm(x))
+
+
+#define TRANSLATOR_DECLARATIONS(NAME) \
+public: \
+ NAME (); \
+ VIRTUAL_COPY_CONSTRUCTOR (Translator, NAME); \
+ static SCM static_description_; \
+ virtual SCM static_translator_description () const; \
+ virtual SCM translator_description () const;
-class Interpreter : public virtual Translator {
+/*
+ Translate music into grobs.
+*/
+class Translator
+{
+ void init ();
+
public:
- virtual bool interpret_request_b(Request*) { return false;}
+ Context * get_parent_context () const { return daddy_context_; }
+
+ Translator (Translator const &);
+
+ void removal_processing ();
+ SCM internal_get_property (SCM symbol) const;
+
+ virtual Music_output_def *get_output_def () const;
+ virtual Translator_group* get_daddy_translator ()const;
+ virtual Moment now_mom () const;
+ virtual bool try_music (Music *req);
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void initialize () ;
+ virtual void process_music ();
+ virtual void do_announces ();
+ virtual void finalize ();
+
+ Score_context * get_score_context () const;
+ Global_context * get_global_context () const;
+
+ TRANSLATOR_DECLARATIONS(Translator);
+ DECLARE_SMOBS (Translator, dummy);
+protected: // should be private.
+ Context * daddy_context_ ;
+ SCM simple_trans_list_;
+ friend class Context_def;
+ friend class Context;
};
-#endif // ACCEPTOR_HH
+
+/**
+ 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_);\
+ add_translator (t);\
+}\
+SCM T::translator_description() const\
+{ \
+ return static_description_;\
+}\
+ADD_GLOBAL_CTOR (_ ## T ## _adder);
+
+
+
+
+#define ENTER_DESCRIPTION(classname,desc,grobs,accepted,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"), \
+ scm_makfrom0str (desc), static_properties); \
+ \
+ static_properties= scm_acons (ly_symbol2scm ("interfaces-acked"), \
+ parse_symbol_list (acked), static_properties); \
+ static_properties= scm_acons (ly_symbol2scm ("events-accepted"), \
+ parse_symbol_list (accepted), 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; \
+}
+
+
+
+void add_translator (Translator*trans);
+
+Translator*get_translator (SCM s);
+DECLARE_UNSMOB(Translator,translator);
+#endif // TRANSLATOR_HH
projects / lilypond.git / blobdiff