X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Ftranslator.hh;h=e88ab8b4c4bbf2e72d713a22baf659e4f21b9057;hb=75eebcb49e52d296b1da3e1074e0825d2c780db4;hp=c97234aa1585425817cd03b1f5296c99ba287e73;hpb=876ccb4004d92f3b7bd539753f8f9339b7d48490;p=lilypond.git

diff --git a/lily/include/translator.hh b/lily/include/translator.hh
index c97234aa15..e88ab8b4c4 100644
--- a/lily/include/translator.hh
+++ b/lily/include/translator.hh
@@ -3,111 +3,98 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.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 "dictionary.hh"
-#include "parray.hh"
 #include "input.hh"
+#include "smobs.hh"
+
+struct Acknowledge_information
+{
+  SCM symbol_;
+  Engraver_void_function_engraver_grob_info function_;
+};
 
+#define TRANSLATOR_DECLARATIONS(NAME)					\
+  public:								\
+  NAME ();								\
+  VIRTUAL_COPY_CONSTRUCTOR (Translator, NAME);				\
+  static SCM static_description_;					\
+  static Array<Acknowledge_information> acknowledge_static_array_;	\
+  virtual void fetch_precomputable_methods (Translator_void_method_ptr methods[]); \
+  virtual SCM static_translator_description () const;			\
+  virtual SCM translator_description () const;				\
+  virtual Engraver_void_function_engraver_grob_info get_acknowledger (SCM sym) \
+  {									\
+    return static_get_acknowledger (sym);				\
+  }									\
+  static Engraver_void_function_engraver_grob_info static_get_acknowledger (SCM sym);
+
+#define DECLARE_ACKNOWLEDGER(x) public : void acknowledge_ ## x (Grob_info); protected:
+
+enum Translator_precompute_index
+  {
+    START_TRANSLATION_TIMESTEP,
+    STOP_TRANSLATION_TIMESTEP,
+    PROCESS_MUSIC,
+    PROCESS_ACKNOWLEDGED,
+    TRANSLATOR_METHOD_PRECOMPUTE_COUNT,
+  };
+
+/*
+  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 Input {
 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);
+  bool must_be_last () const;
+
+  Context *context () const { return daddy_context_; }
+
   Translator (Translator const &);
-  Translator ();
-  virtual ~Translator ();
-  
-  Translator_group * daddy_trans_l_ ;
- 
-  void print () const;
-  
-  /**
-    try to fit the request in this engraver
-
-    @return
-    false: not noted,  not taken.
-
-    true: request swallowed. Don't try to put the request elsewhere.
-
-    */
-  bool try_music (Music*);
-  void pre_move_processing();
-  void add_processing ();
-  void creation_processing ();
-  void process_requests();
-  void post_move_processing();
-  void removal_processing();
-  /**
-    ask daddy for a feature
-    */
-  Music_output_def *output_def_l () const;
-
-  SCM get_property (String, Translator_group **) const;
-  SCM get_property (SCM symbol, Translator_group **) const;
-  
-  virtual Moment now_mom () const;  
 
-protected:
-   enum { 
-    ORPHAN,
-    VIRGIN,
-    CREATION_INITED,
-    MOVE_INITED,
-    ACCEPTED_REQS,
-    PROCESSED_REQS,
-    ACKED_REQS,
-    MOVE_DONE
-  } status;
-
-  /*    
-	@see{try_request}
-	Default: always return false
-	*/
-  virtual void do_add_processing ();
-  virtual bool do_try_music (Music *req_l);
-  virtual void do_print () const;
-  virtual void do_pre_move_processing();
-  virtual void do_post_move_processing();
-  virtual void do_process_requests () ;
-  virtual void do_creation_processing() ;
-  virtual void do_removal_processing();
-};
+  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 initialize ();
+  virtual void finalize ();
 
-/**
-  A macro to automate administration of translators.
- */
-#define ADD_THIS_TRANSLATOR(T)				\
-static void  _ ## T ## _adder () {\
-      T *t = new T;\
-      t->type_str_ = classname (t);\
-      add_translator (t);\
-}\
-ADD_GLOBAL_CTOR(_ ## T ## _adder);
+  void stop_translation_timestep ();
+  void start_translation_timestep ();
+  void process_music ();
+  void process_acknowledged ();
 
+  Score_context *get_score_context () const;
+  Global_context *get_global_context () const;
 
+  TRANSLATOR_DECLARATIONS (Translator);
+  DECLARE_SMOBS (Translator, dummy);
 
-extern Dictionary<Translator*> *global_translator_dict_p;
-void add_translator (Translator*trans_p);
+protected:			// should be private.
+  Context *daddy_context_;
+  virtual void derived_mark () const;
 
-Translator*get_translator_l (String s);
+  friend class Context_def;
+  friend class Context;
+};
+void add_translator (Translator *trans);
 
+Translator *get_translator (SCM s);
+DECLARE_UNSMOB (Translator, translator);
 #endif // TRANSLATOR_HH