X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fitem.hh;h=1895910fb6c95ea21a45fbfa06cbbc6c79e0c80e;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=f61a2f27650789168a2ea2724acd63ee5fe96d8d;hpb=ce5315498fcaaf17d5eb1b320014e96defbb7dfb;p=lilypond.git

diff --git a/lily/include/item.hh b/lily/include/item.hh
index f61a2f2765..1895910fb6 100644
--- a/lily/include/item.hh
+++ b/lily/include/item.hh
@@ -1,48 +1,57 @@
 /*
   item.hh -- declare Item
 
-  source file of the LilyPond music typesetter
+  source file of the GNU LilyPond music typesetter
 
-  (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 #ifndef ITEM_HH
 #define ITEM_HH
 
-#include "glob.hh"
-#include "boxes.hh"
-#include "string.hh"
-#include "staff-elem.hh"
+#include "grob.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. 
-  
+   Item is the datastructure for printables whose width is known
+   before the spacing is calculated
 */
-class Item : public virtual Score_elem {
+class Item : public Grob
+{
+  Drul_array<Item *> broken_to_drul_;
+
+  DECLARE_CLASSNAME(Item);
 public:
-    /// indirection to the column it is in
-    PCol * pcol_l_;
-
-    /* *************** */
-    virtual Item *item() { return this; }
-    Item();
-    void do_print()const;
-    Real hpos_f() const;
-    NAME_MEMBERS(Item);
-    /**
-      
-      @return the line where this is in; 
-
-      PRE
-      Breaking calc has  to be finished
-     */
-    Line_of_score * line_l() const;
+  Item (SCM);
+  Item (Item const &);
+
+  virtual Grob *clone () const;
+
+  static bool is_non_musical (Grob *);
+  static bool break_visible(Grob *);
+  static bool less (Grob * const&, Grob * const&);
+  bool is_broken () const;
+  bool pure_is_visible (int start, int end) 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 ();
+  virtual Interval_t<int> spanned_rank_interval () const;
+  virtual Interval pure_height (Grob *ref, int start, int end);
+  DECLARE_GROB_INTERFACE();
+protected:
+  virtual void discretionary_processing ();
+  void copy_breakable_items ();
+  virtual void derived_mark () const;
+
+  bool cached_pure_height_valid_;
+  Interval cached_pure_height_;
 };
 
+Interval_t<Moment> spanned_time_interval (Item *l, Item *r);
 
 #endif