X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Ftranslator.hh;h=16a77c6beefbb33829fec7c90d0cf478d000bd00;hb=7e72a1e50e94a7f9738d62599de79fe7745f600c;hp=bfcf734e307007a63cf610844bc29637e9048edb;hpb=2862b1027f316a2f0444fa92e441ee28acf7a463;p=lilypond.git

diff --git a/lily/include/translator.hh b/lily/include/translator.hh
index bfcf734e30..16a77c6bee 100644
--- a/lily/include/translator.hh
+++ b/lily/include/translator.hh
@@ -3,40 +3,143 @@
 
   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 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 "input.hh"
+#include "smobs.hh"
+
+#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;
+
+/*
+  Translate music into grobs.
+*/
+class Translator
+{
+  void init ();
+public:
+  Music_output_def * output_def_;
+  
+  bool is_alias (SCM) const;
+  Translator (Translator const &);
+
+  
+  Translator_group * daddy_trans_ ;
+  void removal_processing ();
+  /**
+    ask daddy for a feature
+    */
+  Music_output_def *get_output_def () const;
+
+  SCM internal_get_property (SCM symbol) const;
+  
+  virtual Moment now_mom () const;  
+
+  /*
+    ugh: bubbled up.
+   */
+  SCM definition_;
+  SCM properties_scm_;
+  SCM trans_group_list_;
+  SCM accepts_list_;
+  virtual SCM get_simple_trans_list ();
+public:
+  DECLARE_SMOBS (Translator, dummy);
+private:
+  /*
+    ugh: bubbled up from Translator_group. 
+   */
+
+protected:			// should be private.
+  SCM simple_trans_list_;
+  friend class Context_def;
+  // ugir.
+  //   friend SCM Translator_group::get_simple_trans_list ();
+
 
-/** 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;
+  Global_translator * top_translator () const;
+  TRANSLATOR_DECLARATIONS(Translator);
+  virtual bool try_music (Music *req);
+  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_);\
+      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