Imported Upstream version 2.19.45

[lilypond.git] / lily / include / scheme-engraver.hh

diff --git a/lily/include/scheme-engraver.hh b/lily/include/scheme-engraver.hh
index a90252d04af2b54ddbf53ab5ed14595e494d76a2..59cab571fbe4058a9f6b8b33dc663c5d464438ba 100644 (file)
--- a/lily/include/scheme-engraver.hh
+++ b/lily/include/scheme-engraver.hh
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  Copyright (c) 2009--2012 Han-Wen Nienhuys <hanwen@lilypond.org>
+  Copyright (c) 2009--2015 Han-Wen Nienhuys <hanwen@lilypond.org>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -26,54 +26,43 @@
 
 class Scheme_engraver : public Engraver
 {
-public:
   void init_from_scheme (SCM definition);
-  TRANSLATOR_DECLARATIONS_NO_LISTENER (Scheme_engraver);
-
-  static Listener get_listener (void *generic_arg, SCM event);
+public:
+  TRANSLATOR_FAMILY_DECLARATIONS (Scheme_engraver);
+  Scheme_engraver (SCM definition);
 
 protected:
   ~Scheme_engraver ();
 
-  void stop_translation_timestep ();
-  void start_translation_timestep ();
-  void process_music ();
-  void process_acknowledged ();
-
   virtual void initialize ();
   virtual void finalize ();
   virtual void derived_mark () const;
-  virtual translator_listener_record *get_listener_list () const;
+  virtual SCM get_listener_list () const;
   virtual bool must_be_last () const;
 
 private:
-  void acknowledge_grob_by_hash (Grob_info info, SCM iface_function_hash);
-  void init_acknowledgers (SCM alist, SCM *hash);
+  virtual SCM get_acknowledger (SCM sym, Direction start_end)
+  {
+    return generic_get_acknowledger
+      (sym, interface_acknowledger_hash_[start_end]);
+  }
 
-  DECLARE_ACKNOWLEDGER (grob);
-  DECLARE_END_ACKNOWLEDGER (grob);
+  SCM init_acknowledgers (SCM alist);
+  // For now no description.  In future, something derived from the
+  // definition might make sense.
+  SCM translator_description () const { return SCM_EOL; }
 
   bool must_be_last_;
 
-  SCM acknowledge_grob_function_;
-  SCM stop_translation_timestep_function_;
-  SCM start_translation_timestep_function_;
-  SCM process_music_function_;
-  SCM process_acknowledged_function_;
   SCM initialize_function_;
   SCM finalize_function_;
+  SCM precomputable_methods_ [TRANSLATOR_METHOD_PRECOMPUTE_COUNT];
 
   // hashq table of interface-symbol -> scheme-function
-  SCM interface_acknowledger_hash_;
-  SCM interface_end_acknowledger_hash_;
+  Drul_array<SCM> interface_acknowledger_hash_;
 
   // Alist of listened-symbol . scheme-function
-  SCM listeners_alist_;
-
-  // We dont use this, but need it for the documentation boilerplate.
-  static translator_listener_record *listener_list_;
-  translator_listener_record *per_instance_listeners_;
+  SCM per_instance_listeners_;
 };
 
 #endif /* SCHEME_ENGRAVER_HH */
-