lily/bar.cc

   1 /*
   2   bar.cc -- implement Bar
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "bar.hh"
  10 #include "string.hh"
  11 #include "molecule.hh"
  12 #include "paper-def.hh"
  13 #include "lookup.hh"
  14 #include "debug.hh"
  15
  16 Bar::Bar()
  17 {
  18   breakable_b_ = true;
  19   type_str_ = "|";
  20   spanned_i_ = 0;
  21 }
  22
  23
  24
  25 IMPLEMENT_IS_TYPE_B1(Bar,Item);
  26
  27 void
  28 Bar::do_print() const
  29 {
  30   DOUT << type_str_;
  31 }
  32
  33 Molecule*
  34 Bar::brew_molecule_p() const
  35 {
  36   Paper_def *p = paper();
  37   Symbol s = p->lookup_l()->bar (type_str_,
  38                                  p->get_var ("bar_size"));
  39   Molecule*output = new Molecule (Atom (s));
  40   return output;
  41 }
  42
  43 /**
  44   Prescriptions for splitting bars.
  45   TODO: parametrise this (input-settable)
  46  */
  47 static char const *bar_breaks[][3] ={
  48   {":|", ":|:", "|:"},
  49   {"|", "|", ""},
  50   {"", "|:", "|:"},
  51   {"||.", "||.", ""},
  52   {":|", ":|", ""},
  53   {0,0,0}
  54 };
  55
  56 void
  57 Bar::do_pre_processing()
  58 {
  59   for (int i=0; bar_breaks[i][0]; i++)
  60     {
  61         if (bar_breaks[i][1] == type_str_)
  62             type_str_ = bar_breaks[i][break_status_i()+1];
  63     }
  64
  65   /*
  66     span_score_bar needs dims, so don't do
  67
  68     transparent_b_ = empty_b_ = (!type_str_);
  69
  70     */
  71 }
  72