-/*
+/*
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--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
#ifndef SIMPLE_SPACER_HH
#define SIMPLE_SPACER_HH
-class Simple_spacer {
+#include "std-vector.hh"
+#include "lily-proto.hh"
+#include "spring.hh"
+#include "smobs.hh"
+
+class Simple_spacer
+{
+public:
+ Simple_spacer ();
+
+ 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 range_stiffness (int l, int r, bool stretch) const;
+ Real configuration_length (Real) const;
+ vector<Real> spring_positions () const;
+
+ 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 */