/*
- simple-spacer.hh -- declare Simple_spacer
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 1999--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1999--2006 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
#include "std-vector.hh"
#include "lily-proto.hh"
+#include "spring.hh"
#include "smobs.hh"
-struct Spring_description
-{
- Real ideal_;
- Real inverse_hooke_;
- Real block_force_;
-
- Real length (Real force) const;
- Spring_description ();
-
- bool is_sane () const;
-
- bool operator> (const Spring_description &s) const
- {
- return block_force_ > s.block_force_;
- }
-
- bool operator< (const Spring_description &s) const
- {
- return block_force_ < s.block_force_;
- }
-};
-
class Simple_spacer
{
public:
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 range_stiffness (int l, int r) 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,);
+ DECLARE_SIMPLE_SMOBS (Simple_spacer);
private:
Real expand_line ();
Real compress_line ();
Real rod_force (int l, int r, Real dist);
- vector<Spring_description> springs_;
+ vector<Spring> springs_;
Real line_len_;
Real force_;
bool ragged_;
};
/* 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);
+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 */