lily/rod.cc

   1 /*
   2   rod.cc --  implement Rod, Column_rod
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7
   8  */
   9 #include "rod.hh"
  10 #include "paper-column.hh"
  11 #include "warn.hh"
  12 #include "dimensions.hh"
  13 #include "spaceable-grob.hh"
  14
  15 Rod::Rod ()
  16 {
  17   distance_ = 0.0;
  18   item_l_drul_[LEFT] = item_l_drul_[RIGHT] =0;
  19 }
  20
  21
  22
  23 void
  24 Rod::columnize ()
  25 {
  26   Direction d = LEFT;
  27   do {
  28     Paper_column * pc = item_l_drul_[d]->get_column ();
  29     distance_ += - d * item_l_drul_[d]->relative_coordinate (pc, X_AXIS);
  30     item_l_drul_[d] = pc;
  31   } while ((flip (&d))!=LEFT);
  32
  33 }
  34
  35 void
  36 Rod::add_to_cols ()
  37 {
  38   columnize ();
  39   if (item_l_drul_[LEFT] != item_l_drul_[RIGHT])
  40     Spaceable_grob::add_rod (item_l_drul_[LEFT],
  41                                 item_l_drul_[RIGHT],
  42                                 distance_);
  43 }
  44