X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fsimple-spacer.hh;h=675e3baf543882362218e19348f15822a99d3fd7;hb=32a34dcef0c0041c6d62677487a380b5c8b85712;hp=bfd8b38b6523ba5bd4c767441b23d32ee206d15d;hpb=286b81accdca4a86239425de564014a145109a6e;p=lilypond.git

diff --git a/lily/include/simple-spacer.hh b/lily/include/simple-spacer.hh
index bfd8b38b65..675e3baf54 100644
--- a/lily/include/simple-spacer.hh
+++ b/lily/include/simple-spacer.hh
@@ -1,58 +1,72 @@
-/*   
-  simple-spacer.hh -- declare Simple_spacer
-  
-  source file of the GNU LilyPond music typesetter
-  
-  (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-  
- */
+/*
+  This file is part of LilyPond, the GNU music typesetter.
 
-#ifndef SIMPLE_SPACER_HH
-#define SIMPLE_SPACER_HH
+  Copyright (C) 1999--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-#include "parray.hh"
-#include "lily-proto.hh"
+  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.
 
-struct Spring_description
-{
-  Real ideal_;
-  Real hooke_;
-  bool is_active_;
-  Real block_force_;
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
+*/
 
-  Real length (Real force) const;
-  Spring_description ();
+#ifndef SIMPLE_SPACER_HH
+#define SIMPLE_SPACER_HH
 
-  bool is_sane () const;
-};
+#include "std-vector.hh"
+#include "lily-proto.hh"
+#include "spring.hh"
+#include "smobs.hh"
 
-struct Simple_spacer
+class Simple_spacer
 {
-  Array<Spring_description> springs_;
-  Link_array<Grob> spaced_cols_;
-  Link_array<Grob> loose_cols_;
-  Real force_;
-  Real indent_;
-  Real line_len_;
-  Real default_space_;
-  int active_count_;
-  
+public:
   Simple_spacer ();
-  
-  void solve (Column_x_positions *, bool);
-  void add_columns (Link_array<Grob> const &);
-  void my_solve_linelen ();
-  void my_solve_natural_len ();
-  Real active_springs_stiffness () const;
-  Real range_stiffness (int, int) const;
+
+  void solve (Real line_len, bool ragged);
   void add_rod (int l, int r, Real dist);
+  void add_spring (Spring const &);
   Real range_ideal_len (int l, int r) const;
-  Real is_activelocking_force ()const;
-  Real configuration_length ()const;
-  void set_active_states ();
-  bool is_active () const;
+  Real range_stiffness (int l, int r, bool stretch) const;
+  Real configuration_length (Real) const;
+  vector<Real> spring_positions () const;
+
+  void set_force (Real force);
+  Real force () const;
+  Real force_penalty (bool ragged) const;
+  bool fits () const;
+
+  DECLARE_SIMPLE_SMOBS (Simple_spacer);
+
+private:
+  Real expand_line ();
+  Real compress_line ();
+  Real rod_force (int l, int r, Real dist);
+
+  vector<Spring> springs_;
+  Real line_len_;
+  Real force_;
+  bool ragged_;
+  bool fits_;
 };
 
+/* returns a vector of dimensions breaks.size () * breaks.size () */
+vector<Real> get_line_forces (vector<Grob *> const &columns,
+                              Real line_len,
+                              Real indent,
+                              bool ragged);
+
+Column_x_positions get_line_configuration (vector<Grob *> const &columns,
+                                           Real line_len,
+                                           Real indent,
+                                           bool ragged);
+
 #endif /* SIMPLE_SPACER_HH */