* Another grand 2003 update.

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

diff --git a/lily/include/item.hh b/lily/include/item.hh
index e465931074c1f035117ef801161023e504e3cb07..39afb87034fb84da5afbe608b2ddcfbf5d532b03 100644 (file)
--- a/lily/include/item.hh
+++ b/lily/include/item.hh
@@ -3,15 +3,16 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c)  1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 #ifndef ITEM_HH
 #define ITEM_HH
 
 
-#include "boxes.hh"
-#include "string.hh"
-#include "score-elem.hh"
+#include "box.hh"
+#include "grob.hh"
+#include "drul-array.hh"
+
 
 /**
   A horizontally fixed size element of the score.
@@ -19,37 +20,31 @@
   Item is the datastructure for printables whose width is known
   before the spacing is calculated
 
-  NB. This doesn't mean an Item has to initialize the output field before
-  spacing calculation. 
-  
 */
-class Item : public virtual Score_elem {
+class Item : public Grob
+{
+  Drul_array<Item*> broken_to_drul_;
+
 public:
-    /// indirection to the column it is in
-    PCol * pcol_l_;
-    
-    Item * broken_to_a_[2];
-
-    /// should be put in a breakable col.
-    bool breakable_b_;
-    int break_status_i_;
-    /// nobreak = 0, pre = -1, post = 1
-    int break_status_i()const;
-    Item * find_prebroken_piece (PCol*)const;
-    Item * find_prebroken_piece (Line_of_score*)const;    
-
-    virtual Item *item() { return this; }
-    Item();
-    Real hpos_f() const;
-    DECLARE_MY_RUNTIME_TYPEINFO;
-    virtual Line_of_score * line_l() const;
-    
-protected:
-    virtual void  do_breakable_col_processing();
-    virtual void handle_prebroken_dependencies();
-    virtual void do_print()const;
+  VIRTUAL_COPY_CONS (Grob);
+  Item (SCM);
+  Item (Item const &);
 
-    void copy_breakable_items();
+  static bool breakable_b (Grob *);
+  bool broken_b () const;
+  
+  Direction break_status_dir () const;
+  
+  Item *find_prebroken_piece (Direction) const;
+  Grob *find_broken_piece (System *) const;    
+  virtual System *get_system () const;
+  virtual Paper_column *get_column () const;
+  virtual void handle_prebroken_dependencies ();
+  static  bool has_interface (Grob *);
+protected:
+  virtual void discretionary_processing ();
+  void copy_breakable_items ();
+  virtual SCM do_derived_mark () const;
 };