* VERSION (MY_PATCH_LEVEL): make 1.7.0

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

diff --git a/lily/include/item.hh b/lily/include/item.hh
index d1fc8c8bfa7985288772b7f201d54e894ac42b43..8a0fd0b4b7b9ef4e2ec69a4b5643e22cc85a6c2d 100644 (file)
--- a/lily/include/item.hh
+++ b/lily/include/item.hh
@@ -1,32 +1,52 @@
+/*
+  item.hh -- declare Item
+
+  source file of the GNU LilyPond music typesetter
+
+  (c)  1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
 #ifndef ITEM_HH
 #define ITEM_HH
 
-#include "glob.hh"
-#include "boxes.hh"
-#include "string.hh"
-#include "staff-elem.hh"
+
+#include "box.hh"
+#include "grob.hh"
+#include "drul-array.hh"
+
 
 /**
- a horizontally fixed size element of the score
+  A horizontally fixed size element of the score.
 
   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. 
-  
 */
-struct Item : Staff_elem {
-    /// indirection to the column it is in
-    PCol * pcol_l_;
+class Item : public Grob
+{
+  Drul_array<Item*> broken_to_drul_;
 
-    /* *************** */
-    virtual Item *item() { return this; }
-    Item();
-    void do_print()const;
+public:
+  VIRTUAL_COPY_CONS (Grob);
+  Item (SCM);
+  Item (Item const &);
 
-    NAME_MEMBERS(Item);
+  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;
 };
 
 
+
 #endif