release: 1.5.29

[lilypond.git] / lily / include / translator.hh

diff --git a/lily/include/translator.hh b/lily/include/translator.hh
index 58500438be1d9966970d5881c5e8693e8cfc7740..cd4cb58fc317cd23db1522c7ce4ef32131ec3343 100644 (file)
--- a/lily/include/translator.hh
+++ b/lily/include/translator.hh
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 
@@ -19,6 +19,17 @@
 #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;
+
 /** Make some kind of #Element#s from Requests. Elements are made by
   hierarchically grouped #Translator#s
   */
@@ -28,27 +39,24 @@ public:
   Music_output_def * output_def_l_;
   String type_str_;
   
-  virtual const char *name() const;
   bool is_alias_b (String) const;
     
-  VIRTUAL_COPY_CONS(Translator);
+
   Translator (Translator const &);
-  Translator ();
+
   
   Translator_group * daddy_trans_l_ ;
- 
+  DECLARE_SCHEME_CALLBACK(name, (SCM trans));
+  DECLARE_SCHEME_CALLBACK(description,(SCM trans));
+  void announces ();
 
-  void pre_move_processing();
-  void announces();
-  void post_move_processing();
-  void removal_processing();
+  void removal_processing ();
   /**
     ask daddy for a feature
     */
   Music_output_def *output_def_l () const;
 
-  SCM get_property (const char *) const;
-  SCM get_property (SCM symbol) const;
+  SCM internal_get_property (SCM symbol) const;
   
   virtual Moment now_mom () const;  
 
@@ -60,9 +68,10 @@ public:
   SCM definition_;
   
   SCM properties_scm_;
-  DECLARE_SMOBS(Translator, dummy);
-public:
+  DECLARE_SMOBS (Translator, dummy);
 
+public:
+  TRANSLATOR_DECLARATIONS(Translator);
     /**
     try to fit the request in this engraver
 
@@ -73,11 +82,11 @@ public:
 
     */
   virtual bool try_music (Music *req_l);
-  virtual void stop_translation_timestep();
-  virtual void start_translation_timestep();
+  virtual void stop_translation_timestep ();
+  virtual void start_translation_timestep ();
   virtual void do_announces () ;
-  virtual void initialize() ;
-  virtual void finalize();
+  virtual void initialize () ;
+  virtual void finalize ();
 };
 
 
@@ -85,12 +94,49 @@ public:
   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);\
 }\
-ADD_GLOBAL_CTOR(_ ## T ## _adder);
+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;                                                                    \
+}
 
 
 
@@ -98,5 +144,5 @@ extern Dictionary<Translator*> *global_translator_dict_p;
 void add_translator (Translator*trans_p);
 
 Translator*get_translator_l (String s);
-Translator *unsmob_translator (SCM);
+DECLARE_UNSMOB(Translator,translator);
 #endif // TRANSLATOR_HH