release: 1.3.143

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

diff --git a/lily/include/translator.hh b/lily/include/translator.hh
index 65219628f030476b1af73056874ba6c7dff782b4..112c21496f0e02d286b337dfa61de75286170e54 100644 (file)
--- a/lily/include/translator.hh
+++ b/lily/include/translator.hh
@@ -3,35 +3,99 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c)  1997--2001 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 "parray.hh"
+#include "input.hh"
+#include "smobs.hh"
 
-class Translator {
+/** Make some kind of #Element#s from Requests. Elements are made by
+  hierarchically grouped #Translator#s
+  */
+class Translator : public Input {
+  void init ();
 public:
-    String id_str_;
+  Music_output_def * output_def_l_;
+  String type_str_;
+  
+  virtual const char *name () const;
+  bool is_alias_b (String) const;
     
-    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;
+  VIRTUAL_COPY_CONS (Translator);
+  Translator (Translator const &);
+  Translator ();
+  
+  Translator_group * daddy_trans_l_ ;
+ 
+
+  void announces ();
+
+  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;
+  
+  virtual Moment now_mom () const;  
+
+  /*
+    ugh: bubbled up from Translator_group. 
+   */
+  SCM simple_trans_list_;
+  SCM trans_group_list_;
+  SCM definition_;
+  
+  SCM properties_scm_;
+  DECLARE_SMOBS (Translator, dummy);
+public:
+
+    /**
+    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.
+
+    */
+  virtual bool try_music (Music *req_l);
+  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)                         \
+static void  _ ## T ## _adder () {\
+      T *t = new T;\
+      t->type_str_ = classname (t);\
+      add_translator (t);\
+}\
+ADD_GLOBAL_CTOR (_ ## T ## _adder);
+
+
+
+extern Dictionary<Translator*> *global_translator_dict_p;
+void add_translator (Translator*trans_p);
+
+Translator*get_translator_l (String s);
+Translator *unsmob_translator (SCM);
 #endif // TRANSLATOR_HH