lily/include/font-metric.hh

   1 /*
   2   font-metric.hh -- declare Font_metric
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1999--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #ifndef FONT_METRIC_HH
  10 #define FONT_METRIC_HH
  11
  12 #include "box.hh"
  13 #include "lily-proto.hh"
  14 #include "smobs.hh"
  15 #include "virtual-methods.hh"
  16 #include "freetype.hh"
  17
  18 #include <map>
  19 using namespace std;
  20
  21 typedef map<FT_UInt, FT_ULong> Index_to_charcode_map;
  22
  23 class Font_metric
  24 {
  25   DECLARE_CLASSNAME(Font_metric);
  26
  27 public:
  28   SCM description_;
  29   string file_name_;
  30
  31   virtual Stencil text_stencil (string) const;
  32   virtual Stencil word_stencil (string) const;
  33
  34   // ugh.
  35   virtual Box text_dimension (string) const;
  36
  37   virtual string font_name () const;
  38   virtual size_t count () const;
  39   virtual Offset attachment_point (string) const;
  40   virtual Offset get_indexed_wxwy (size_t) const;
  41   virtual Box get_indexed_char (size_t index) const;
  42   virtual Box get_ascii_char (size_t ascii) const;
  43
  44   /*
  45     WTF are these vsize ?
  46
  47     Font_metric is not related to vector<>
  48    */
  49   virtual size_t name_to_index (string) const;
  50   virtual size_t index_to_charcode (size_t) const;
  51   virtual size_t index_to_ascii (size_t) const;
  52   virtual Real design_size () const;
  53   virtual Stencil find_by_name (string) const;
  54   virtual Stencil get_indexed_char_stencil (size_t k) const;
  55   virtual Stencil get_ascii_char_stencil (size_t k) const;
  56   virtual SCM sub_fonts () const;
  57   virtual SCM font_file_name () const;
  58   DECLARE_SMOBS (Font_metric);
  59
  60 private:
  61   /* No copying, no implicit copy constructor.  */
  62   Font_metric (Font_metric const &);
  63
  64 protected:
  65   virtual void derived_mark () const;
  66
  67   Font_metric ();
  68 };
  69
  70 int get_encoded_index (Font_metric *m, string input_coding, int code);
  71
  72 class Simple_font_metric : public Font_metric
  73 {
  74   DECLARE_CLASSNAME(Simple_font_metric);
  75 public:
  76 };
  77
  78 DECLARE_UNSMOB (Font_metric, metrics);
  79
  80 Box lookup_tex_text_dimension (Font_metric *font, SCM text);
  81
  82 char *pfb2pfa (Byte const *pfb, int length);
  83
  84 #endif /* FONT_METRIC_HH */