include/library/framebuffer-font2.hpp

   1 #ifndef _library__framebuffer_font2__hpp__included__
   2 #define _library__framebuffer_font2__hpp__included__
   3
   4 #include <vector>
   5 #include <cstdint>
   6 #include <cstdlib>
   7 #include <iostream>
   8 #include <stdexcept>
   9 #include <map>
  10 #include "framebuffer.hpp"
  11
  12 namespace framebuffer
  13 {
  14 struct font2
  15 {
  16 public:
  17         struct glyph
  18         {
  19                 glyph();
  20                 glyph(std::istream& s);
  21                 unsigned width;
  22                 unsigned height;
  23                 unsigned stride;
  24                 std::vector<uint32_t> fglyph;   //Bitpacked, element breaks between rows.
  25                 void render(fb<false>& fb, int32_t x, int32_t y, color fg, color bg, color hl) const;
  26                 void render(fb<true>& fb, int32_t x, int32_t y, color fg, color bg, color hl) const;
  27         };
  28         font2();
  29         font2(const std::string& file);
  30         font2(struct font& bfont);
  31         void add(const std::u32string& key, const glyph& fglyph) throw(std::bad_alloc);
  32         std::u32string best_ligature_match(const std::u32string& codepoints, size_t start) const
  33                 throw(std::bad_alloc);
  34         const glyph& lookup_glyph(const std::u32string& key) const throw();
  35         unsigned get_rowadvance() const throw() { return rowadvance; }
  36 private:
  37         std::map<std::u32string, glyph> glyphs;
  38         unsigned rowadvance;
  39 };
  40 }
  41 #endif