Fix some bugs in the dynamic engraver and PostScript backend

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

diff --git a/lily/include/item.hh b/lily/include/item.hh
index d1fc8c8bfa7985288772b7f201d54e894ac42b43..9d1f2e73f66aeb5d29347667d8f62e942e83516c 100644 (file)
--- a/lily/include/item.hh
+++ b/lily/include/item.hh
@@ -1,32 +1,48 @@
+/*
+  item.hh -- declare Item
+
+  source file of the GNU LilyPond music typesetter
+
+  (c) 1997--2006 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 "box.hh"
+#include "grob.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.
 
-  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
 */
-struct Item : Staff_elem {
-    /// indirection to the column it is in
-    PCol * pcol_l_;
-
-    /* *************** */
-    virtual Item *item() { return this; }
-    Item();
-    void do_print()const;
-
-    NAME_MEMBERS(Item);
+class Item : public Grob
+{
+  Drul_array<Item *> broken_to_drul_;
+
+  DECLARE_CLASSNAME(Item);
+public:
+  Item (SCM, Object_key const *);
+  Item (Item const &, int count);
+
+  virtual Grob *clone (int count) const;
+
+  static bool is_non_musical (Grob *);
+  bool is_broken () 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 void derived_mark () const;
 };
 
-
 #endif