* The grand 2005-2006 replace.

[lilypond.git] / lily / include / simple-spacer.hh

diff --git a/lily/include/simple-spacer.hh b/lily/include/simple-spacer.hh
index c122c64e2cc11445bc277a9c40f75c4caca5be23..1ee059b637181b726cedeb989d7f7d19280bba7b 100644 (file)
--- a/lily/include/simple-spacer.hh
+++ b/lily/include/simple-spacer.hh
@@ -1,17 +1,70 @@
-/*   
+/*
   simple-spacer.hh -- declare Simple_spacer
-  
+
   source file of the GNU LilyPond music typesetter
-  
-  (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+
+  (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
 
 #ifndef SIMPLE_SPACER_HH
 #define SIMPLE_SPACER_HH
 
-class Simple_spacer {
+#include "parray.hh"
+#include "lily-proto.hh"
+#include "smobs.hh"
+
+struct Spring_description
+{
+  Real ideal_;
+  Real inverse_hooke_;
+  bool is_active_;
+  Real block_force_;
+
+  Real length (Real force) const;
+  Spring_description ();
+
+  bool is_sane () const;
+};
+
+class Simple_spacer
+{
+public:
+  Array<Spring_description> springs_;
+  Real force_;
+  Real indent_;
+  Real line_len_;
+  Real default_space_;
+  int active_count_;
+
+  Simple_spacer ();
+
+  void my_solve_linelen ();
+  void my_solve_natural_len ();
+  Real active_springs_stiffness () const;
+  Real range_stiffness (int, int) const;
+  void add_rod (int l, int r, Real dist);
+  void add_spring (Real, Real);
+  Real range_ideal_len (int l, int r) const;
+  Real active_blocking_force ()const;
+  Real configuration_length ()const;
+  void set_active_states ();
+  bool is_active () const;
+
+  DECLARE_SIMPLE_SMOBS (Simple_spacer,);
+};
+
+struct Simple_spacer_wrapper
+{
+  Simple_spacer *spacer_;
+  Link_array<Grob> spaced_cols_;
+  Link_array<Grob> loose_cols_;
 
+  Simple_spacer_wrapper ();
+  void add_columns (Link_array<Grob> const &);
+  void solve (Column_x_positions *, bool);
+  ~Simple_spacer_wrapper ();
+private:
+  Simple_spacer_wrapper (Simple_spacer_wrapper const &);
 };
 
 #endif /* SIMPLE_SPACER_HH */