-/*
- 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.
+
+ Copyright (C) 1999--2014 Han-Wen Nienhuys <hanwen@xs4all.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 SIMPLE_SPACER_HH
#define SIMPLE_SPACER_HH
-#include "parray.hh"
+#include "std-vector.hh"
#include "lily-proto.hh"
+#include "spring.hh"
#include "smobs.hh"
-struct Spring_description
-{
- Real ideal_;
- Real 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 solve (Real line_len, bool ragged);
void add_rod (int l, int r, Real dist);
- void add_spring (Real, Real);
+ void add_spring (Spring const &);
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;
+ Real range_stiffness (int l, int r, bool stretch) const;
+ Real configuration_length (Real) const;
+ vector<Real> spring_positions () const;
- DECLARE_SIMPLE_SMOBS(Simple_spacer, );
-};
+ void set_force (Real force);
+ Real force () const;
+ Real force_penalty (bool ragged) const;
+ bool fits () 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&);
+ 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 */