lily/paper-system.cc

   1 /*
   2   paper-system.cc -- implement Prob functions for paper-system
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2004--2009 Jan Nieuwenhuizen <janneke@gnu.org>
   7 */
   8
   9 #include "paper-system.hh"
  10 #include "item.hh"
  11
  12 Prob *
  13 make_paper_system (SCM immutable_init)
  14 {
  15   Prob *prob = new Prob (ly_symbol2scm ("paper-system"), immutable_init);
  16   return prob;
  17 }
  18
  19 void
  20 paper_system_set_stencil (Prob *prob, Stencil s)
  21 {
  22   SCM yext = prob->get_property ("Y-extent");
  23
  24   if (is_number_pair (yext))
  25     {
  26       Box b = s.extent_box ();
  27       b[Y_AXIS] = ly_scm2interval (yext);
  28
  29       s = Stencil (b, s.expr ());
  30     }
  31
  32   prob->set_property ("stencil", s.smobbed_copy ());
  33 }