release: 1.0.1

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

diff --git a/lily/include/item.hh b/lily/include/item.hh
index cae928961f4a525bbd6437d9796a75c887ee313d..32010298298543c90cc93fc90593b9332cd673f5 100644 (file)
--- a/lily/include/item.hh
+++ b/lily/include/item.hh
@@ -1,13 +1,21 @@
+/*
+  item.hh -- declare Item
+
+  source file of the GNU LilyPond music typesetter
+
+  (c)  1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+*/
 #ifndef ITEM_HH
 #define ITEM_HH
 
-#include "glob.hh"
-#include "boxes.hh"
+
+#include "box.hh"
 #include "string.hh"
-#include "staff-elem.hh"
+#include "score-element.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
@@ -16,18 +24,42 @@
   spacing calculation. 
   
 */
-class Item : public Staff_elem {
+class Item : public virtual Score_element {
 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);
+  Link_array<Spanner> attached_span_l_arr_;
+  Drul_array<Item*> broken_to_drul_;
+
+  /// should be put in a breakable col.
+  bool breakable_b_;
+  Direction break_status_dir_;
+  int break_priority_i_;
+  
+  /// nobreak = 0, pre = -1, post = 1
+  Direction break_status_dir() const;
+  Item * find_prebroken_piece (Direction) const;
+  Item * find_prebroken_piece (Line_of_score*) const;    
+
+  virtual Item *access_Item() ;
+  Item();
+  Real hpos_f() const;
+  DECLARE_MY_RUNTIME_TYPEINFO;
+  virtual Line_of_score * line_l() const;
+  virtual Paper_column * column_l () const;
+    
+  static int left_right_compare (Item const *, Item const*);
+  
+  Item (Item const &);
+protected:
+  virtual void do_unlink ();
+  virtual void do_junk_links();
+  virtual void  do_breakable_col_processing();
+  virtual void handle_prebroken_dependencies();
+  virtual void do_print() const;
+  virtual bool linked_b() const;
+
+  void copy_breakable_items();
 };
 
 
+
 #endif