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 <ctype.h>
  10 #include "clef-item.hh"
  11 #include "string.hh"
  12 #include "molecule.hh"
  13 #include "paper-def.hh"
  14 #include "lookup.hh"
  15 #include "clef-grav.hh"
  16
  17
  18 void
  19 Clef_item::do_pre_processing()
  20 {
  21   change_b_ = ! (break_status_i() == 1);
  22
  23   if (default_b_)
  24     {
  25       set_empty(break_status_i() != 1);
  26       transparent_b_ = (break_status_i() != 1);
  27     }
  28 }
  29
  30 Clef_item::Clef_item()
  31 {
  32   breakable_b_ =true;
  33   default_b_ = false;
  34   change_b_ = true;
  35   read ("violin");
  36 }
  37
  38 /*
  39  * Convert input clef string to
  40  * a clef symbol and a line position.
  41  * This would be better done in the lexer (more efficient)
  42  * or as a table-lookup.
  43  */
  44 void
  45 Clef_item::read (String t)
  46 {
  47   symbol_= t;
  48   if (t == "violin")
  49     {
  50       y_position_i_ = -2;
  51     }
  52   else if (t == "bass")
  53     {
  54       y_position_i_ = 2;
  55     }
  56   else if (t == "G" || t == "G2" || t == "treble")
  57     {
  58       symbol_ = "violin";
  59       y_position_i_ = -2;
  60     }
  61   else if (t == "french" || t == "G1")
  62     {
  63       symbol_="violin";
  64       y_position_i_ = -4;
  65     }
  66   else if (t == "soprano" || t == "C1")
  67     {
  68       symbol_="alto";
  69       y_position_i_ = -4;
  70     }
  71   else if (t == "mezzosoprano" || t == "C2")
  72     {
  73       symbol_ = "alto";
  74       y_position_i_ = -2;
  75     }
  76   else if (t == "alto")
  77     {
  78       symbol_ = "alto";
  79       y_position_i_ = 0;
  80     }
  81   else if (t == "C3")
  82     {
  83       symbol_ = "alto";
  84       y_position_i_ = 0;
  85   }
  86   else if (t == "tenor" || t == "C4")
  87   {
  88       symbol_ = "alto";
  89       y_position_i_ = 2;
  90     }
  91   else if (t == "baritone" || t == "C5")
  92     {
  93       symbol_ = "alto";
  94       y_position_i_ = 4;
  95     }
  96   else if (t == "varbaritone" || t == "F3")
  97     {
  98       symbol_ = "bass";
  99       y_position_i_ = 0;
 100     }
 101   else if (t == "F" || t == "F4")
 102     {
 103       symbol_ = "bass";
 104       y_position_i_ = 2;
 105     }
 106   else if (t == "subbass")
 107     {
 108       symbol_ = "bass";
 109       y_position_i_ = 4;
 110     }
 111   else if (isdigit(t[1]))
 112           switch (t[0])
 113           { // we've already dealt with plain F, G  or C clef
 114                   // position 0 is line 3.
 115           case 'G':
 116           case 'g':
 117                   symbol_ = "violin";
 118                   y_position_i_ =   2 * (t[1] - '0') - 6;
 119                   break;
 120           case 'F':
 121           case 'f':
 122                   symbol_ = "bass";
 123                   y_position_i_ = 2 * (t[1] - '0') - 6;
 124                   break;
 125           }
 126 }
 127
 128 void
 129 Clef_item::read (Clef_engraver const &k)
 130 {
 131   read (k.clef_type_str_);
 132 }
 133
 134 Molecule*
 135 Clef_item::brew_molecule_p() const
 136 {
 137   String t = symbol_;
 138   if  (change_b_)
 139     t += "_change";
 140   Atom s = paper()->lookup_l ()->clef (t);
 141   Molecule*output = new Molecule (Atom (s));
 142   output->translate_axis (paper()->internote_f () * y_position_i_, Y_AXIS);
 143   return output;
 144 }
 145
 146
 147 IMPLEMENT_IS_TYPE_B1(Clef_item,Item);