lily/breathing-sign.cc

   1 /*
   2   breathing_sign.cc -- implement Breathing_sign
   3
   4   Copyright (C) 1999 Michael Krause
   5
   6   written for the GNU LilyPond music typesetter
   7
   8 TODO: --> see breathing-sign-engraver.cc
   9
  10 */
  11 #include "staff-symbol-referencer.hh"
  12 #include "directional-element-interface.hh"
  13
  14 #include "breathing-sign.hh"
  15 #include "string.hh"
  16 #include "molecule.hh"
  17 #include "paper-def.hh"
  18 #include "lookup.hh"
  19 #include "debug.hh"
  20 #include "dimensions.hh"
  21 #include "direction.hh"
  22
  23
  24 Breathing_sign::Breathing_sign ()
  25 {
  26   set_elt_property ("breakable", SCM_BOOL_T);
  27 }
  28
  29 Molecule*
  30 Breathing_sign::do_brew_molecule_p () const
  31 {
  32   Staff_symbol_referencer_interface si (this);
  33
  34   Real space = si.staff_space();
  35   Interval i1(0, space / 6), i2(-space / 2, space / 2);
  36   Box b(i1, i2);
  37
  38   Molecule *output = new Molecule (lookup_l()->filledbox(b));
  39
  40   return output;
  41 }
  42
  43 void
  44 Breathing_sign::do_post_processing()
  45 {
  46   Real space = staff_symbol_referencer (this).staff_space();
  47   Direction d = directional_element (this). get ();
  48   if (!d)
  49     {
  50       d = UP;
  51       directional_element(this).set (d);
  52     }
  53
  54   translate_axis(2.0 * space * d, Y_AXIS);
  55 }
  56