source file of the GNU LilyPond music typesetter
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#ifndef SIMPLE_SPACER_HH
#define SIMPLE_SPACER_HH
-class Simple_spacer {
+#include "parray.hh"
+#include "lily-proto.hh"
+
+struct Spring_description
+{
+ Real ideal_;
+ Real hooke_;
+ bool is_active_;
+
+ Real block_force_;
+
+ Real length (Real force) const;
+ Spring_description ();
+
+ bool sane_b () const;
+};
+
+struct 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_;
+ bool compression_penalty_b_;
+
+ 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 add_rod (int l, int r, Real dist);
+ 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;
};
#endif /* SIMPLE_SPACER_HH */