source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2005 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 "input.hh"
+#include "smobs.hh"
+
+/* copied from lily-guile.hh */
+#ifndef get_property
+#define get_property(x) internal_get_property (ly_symbol2scm (x))
+#endif
+
+#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;
+
+/*
+ Translate music into grobs.
+*/
+class Translator
+{
+ void init ();
+
+protected:
+ bool must_be_last_;
-/** Make some kind of #Element#s from Requests. Elements are made by
- hierarchically grouped #Translator#s
- */
-class Translator {
public:
- String id_str_;
-
- int iterator_count_;
-
- virtual Global_translator *global_l() { return 0; }
-
- virtual void print() const;
-
- /// Score_register = 0, Staff_registers = 1, etc)
- 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;
+ bool must_be_last () const;
+
+ Context *context () const { return daddy_context_; }
+
+ Translator (Translator const &);
+
+ SCM internal_get_property (SCM symbol) const;
+
+ virtual 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_;
+ virtual void derived_mark () const;
+
+ friend class Context_def;
+ friend class Context;
};
+/**
+ 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 ADD_TRANSLATOR(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