lily/spring.cc

   1 /*
   2   spring.cc --  implement Spring
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7
   8  */
   9
  10 #include "spring.hh"
  11 #include "debug.hh"
  12 #include "item.hh"
  13 #include "paper-column.hh"
  14
  15 Spring::Spring ()
  16 {
  17   item_l_drul_[LEFT]  =item_l_drul_[RIGHT] =0;
  18   distance_f_ =0.;
  19   strength_f_ =1.0;
  20 }
  21
  22 void
  23 Spring::add_to_cols ()
  24 {
  25   item_l_drul_[LEFT]->column_l ()->add_spring (item_l_drul_[RIGHT]->column_l (), distance_f_, strength_f_);
  26 }
  27
  28
  29 Column_spring::Column_spring ()
  30 {
  31   other_l_ = 0;
  32   distance_f_ =0;
  33   strength_f_ =1.0;
  34 }
  35
  36
  37 int
  38 Column_spring::compare (Column_spring const & r1, Column_spring const &r2)
  39 {
  40   return r1.other_l_->rank_i() - r2.other_l_->rank_i();
  41 }
  42