Add basic scheme programmable engravers.

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

diff --git a/lily/include/translator.icc b/lily/include/translator.icc
index 8d96eb20f0232beaa427f47d4a72e569b1658b00..73f8f7bab377707a640ee7b8c49d200980abcbf6 100644 (file)
--- a/lily/include/translator.icc
+++ b/lily/include/translator.icc
@@ -32,7 +32,6 @@
    A macro to automate administration of translators.
 */
 #define ADD_THIS_TRANSLATOR(T)                                         \
-  translator_listener_record *T::listener_list_;                       \
   SCM T::static_description_ = SCM_EOL;                                        \
   static void _ ## T ## _adder ()                                      \
   {                                                                    \
@@ -45,12 +44,15 @@
   {                                                                    \
     return static_description_;                                                \
   }                                                                    \
-  ADD_GLOBAL_CTOR (_ ## T ## _adder);
+  ADD_GLOBAL_CTOR (_ ## T ## _adder); \
+  /* end define */
 
-#define ADD_TRANSLATOR(classname, desc, grobs, read, write)            \
+#define DEFINE_TRANSLATOR_LISTENER_LIST(T) \
+  translator_listener_record *T::listener_list_;       \
+  /* end define */
+
+#define DEFINE_ACKNOWLEDGERS(classname) \
   Drul_array< vector<Acknowledge_information> > classname::acknowledge_static_array_drul_;     \
-  IMPLEMENT_FETCH_PRECOMPUTABLE_METHODS (classname);                   \
-  ADD_THIS_TRANSLATOR (classname);                                     \
   Engraver_void_function_engraver_grob_info                            \
   classname::static_get_acknowledger (SCM sym)                         \
   {                                                                    \
@@ -61,12 +63,22 @@
   {                                                                    \
     return generic_get_acknowledger (sym, &acknowledge_static_array_drul_[STOP]);      \
   }                                                                    \
+  /* end define */
+
+#define DEFINE_TRANSLATOR_DOC(classname, desc, grobs, read, write)             \
   SCM                                                                  \
   classname::static_translator_description () const                    \
   {                                                                    \
     return Translator::static_translator_description (grobs, desc, listener_list_, read, write); \
   }
 
+#define ADD_TRANSLATOR(classname, desc, grobs, read, write)            \
+  IMPLEMENT_FETCH_PRECOMPUTABLE_METHODS (classname);                   \
+  ADD_THIS_TRANSLATOR (classname);                                     \
+  DEFINE_TRANSLATOR_DOC(classname, desc, grobs, read, write)           \
+  DEFINE_ACKNOWLEDGERS(classname) \
+  DEFINE_TRANSLATOR_LISTENER_LIST(classname) \
+  
 #define IMPLEMENT_FETCH_PRECOMPUTABLE_METHODS(T)                       \
   void                                                                 \
   T::fetch_precomputable_methods (Translator_void_method_ptr ptrs[])   \
@@ -130,9 +142,10 @@ cl :: _internal_declare_ ## m ()                   \
 ADD_SCM_INIT_FUNC (cl ## _declare_event_ ## m, cl::_internal_declare_ ## m);   \
                                                        \
 Listener                                               \
-cl :: _get_ ## m ## _listener (void *me)               \
+ cl :: _get_ ## m ## _listener (void *me, SCM unused)   \
 {                                                      \
   cl *obj = (cl *) me;                                 \
+  (void) unused; \
   return obj->GET_LISTENER (_listen_scm_ ## m);                \
 }                                                      \
                                                        \