lily/clef-item.cc

   1 /*
   2   clef-item.cc -- implement Clef_item
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #include "clef-item.hh"
  10 #include "string.hh"
  11 #include "molecule.hh"
  12 #include "paper-def.hh"
  13 #include "lookup.hh"
  14 #include "clef-grav.hh"
  15
  16
  17 void
  18 Clef_item::do_pre_processing()
  19 {
  20   change_b_ = ! (break_status_i() == 1);
  21
  22   if (default_b_)
  23     {
  24       set_empty(break_status_i() != 1);
  25       transparent_b_ = (break_status_i() != 1);
  26     }
  27 }
  28
  29 Clef_item::Clef_item()
  30 {
  31   breakable_b_ =true;
  32   default_b_ = false;
  33   change_b_ = true;
  34   read ("violin");
  35 }
  36
  37 void
  38 Clef_item::read (String t)
  39 {
  40   type_= t;
  41   if (type_ == "violin")
  42     y_position_i_ = -2;
  43   if (type_ == "alto")
  44     y_position_i_ = 0;
  45   if (type_ == "tenor")
  46     y_position_i_ = 2;
  47   if (type_ == "bass")
  48     y_position_i_ = 2;
  49 }
  50 void
  51 Clef_item::read (Clef_engraver const &k)
  52 {
  53   read (k.clef_type_str_);
  54 }
  55
  56 Molecule*
  57 Clef_item::brew_molecule_p() const
  58 {
  59   String t = type_;
  60   if  (change_b_)
  61     t += "_change";
  62   Atom s = paper()->lookup_l ()->clef (t);
  63   Molecule*output = new Molecule (Atom (s));
  64   output->translate_axis (paper()->internote_f () * y_position_i_, Y_AXIS);
  65   return output;
  66 }
  67
  68
  69 IMPLEMENT_IS_TYPE_B1(Clef_item,Item);