X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fitem.hh;h=07f1261a525c72fca408cd4085d26c0df80da42d;hb=c154dcac0e1469911bd38cc7d2df5f5fc47e4982;hp=58c9969b62df8a64ac2e17bbebcdf073dd0b7b1d;hpb=aac814e0904dde5c2d5bba5f165e61826c72b1aa;p=lilypond.git

diff --git a/lily/include/item.hh b/lily/include/item.hh
index 58c9969b62..07f1261a52 100644
--- a/lily/include/item.hh
+++ b/lily/include/item.hh
@@ -1,52 +1,68 @@
 /*
-  item.hh -- declare Item
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c)  1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef ITEM_HH
 #define ITEM_HH
 
-
-#include "box.hh"
 #include "grob.hh"
-#include "drul-array.hh"
-
 
 /**
-  A horizontally fixed size element of the score.
-
-  Item is the datastructure for printables whose width is known
-  before the spacing is calculated
+   A horizontally fixed size element of the score.
 
+   Item is the datastructure for printables whose width is known
+   before the spacing is calculated
 */
 class Item : public Grob
 {
-  Drul_array<Item*> broken_to_drul_;
+  Drul_array<Item *> broken_to_drul_;
 
+  DECLARE_CLASSNAME (Item);
 public:
-  VIRTUAL_COPY_CONS (Grob);
   Item (SCM);
   Item (Item const &);
 
-  static bool breakable_b (Grob *);
-  bool broken_b () const;
-  
+  virtual Grob *clone () const;
+
+  static bool is_non_musical (Grob *);
+  static bool break_visible (Grob *);
+
+  bool is_broken () const;
+  virtual 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;    
+  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 *);
+  virtual Interval_t<int> spanned_rank_interval () const;
+  virtual Interval pure_y_extent (Grob *ref, int start, int end);
+  virtual void cache_pure_height (Interval height);
 protected:
   virtual void discretionary_processing ();
   void copy_breakable_items ();
-  virtual SCM do_derived_mark ();
-};
+  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