lily/scaled-font-metric.cc

   1 /*
   2      scaled-font-metric.cc -- declare Scaled_font_metric
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1999--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   7
   8  */
   9
  10 #include "scaled-font-metric.hh"
  11 #include "string.hh"
  12 #include "molecule.hh"
  13
  14
  15 Scaled_font_metric::Scaled_font_metric (Font_metric* m, Real magn)
  16 {
  17   magnification_ = magn;
  18   SCM desc = m->description_;
  19
  20   Real total_mag = magn * gh_scm2double (ly_cdr (desc));
  21   assert (total_mag);
  22
  23   description_ = gh_cons (ly_car (desc), gh_double2scm (total_mag));
  24   orig_ = m;
  25 }
  26
  27 SCM
  28 Scaled_font_metric::make_scaled_font_metric (Font_metric*m, Real s)
  29 {
  30   Scaled_font_metric *sfm = new Scaled_font_metric (m,s);
  31   return sfm->self_scm ();
  32 }
  33
  34 Molecule
  35 Scaled_font_metric::find_by_name (String s) const
  36 {
  37   Molecule m = orig_->find_by_name (s);
  38   Box b = m.extent_box ();
  39   b.scale (magnification_);
  40   Molecule q (b,fontify_atom ((Font_metric*) this, m.get_expr ()));
  41
  42   return q ;
  43 }
  44
  45 Box
  46 Scaled_font_metric::get_char (int i) const
  47 {
  48   Box b = orig_->get_char (i);
  49   b.scale (magnification_);
  50   return b;
  51 }
  52
  53 Box
  54 Scaled_font_metric::text_dimension (String t) const
  55 {
  56   Box b (orig_->text_dimension (t));
  57
  58   b.scale (magnification_);
  59   return b;
  60 }
  61
  62 int
  63 Scaled_font_metric::count () const
  64 {
  65   return orig_->count ();
  66 }