($(outdir)/%.pdf): add DVIPS_FLAGS. This will

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

diff --git a/lily/include/translator.hh b/lily/include/translator.hh
index 65219628f030476b1af73056874ba6c7dff782b4..fe4d51aaa5e9b5cbcda1284b28be3eee2e332772 100644 (file)
--- a/lily/include/translator.hh
+++ b/lily/include/translator.hh
@@ -3,35 +3,135 @@
 
   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"
 
-class Translator {
+#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_;
+  
+  Translator (Translator const &);
+
+  
+  Translator_group * daddy_trans_ ;
+  void removal_processing ();
+  virtual 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;
 public:
-    String id_str_;
-    
-    int iterator_count_;
-    
-    virtual Global_translator *global_l() { return 0; }
-
-    /// 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(){}
-    NAME_MEMBERS();
-    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