Dogcows Code - chaz/openbox/blob - otk/font.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef   __font_hh
   3 #define   __font_hh
   4
   5 #include "ustring.hh"
   6 #include "truerendercontrol.hh"
   7
   8 extern "C" {
   9 #include <X11/Xlib.h>
  10 #define _XFT_NO_COMPAT_ // no Xft 1 API
  11 #include <X11/Xft/Xft.h>
  12 }
  13
  14 #include <cassert>
  15
  16 namespace otk {
  17
  18 class Color;
  19 class Surface;
  20
  21 class Font {
  22   /*
  23    * static members
  24    */
  25 private:
  26   static std::string  _fallback_font;
  27   static bool         _xft_init;
  28
  29 public:
  30   // the fallback is only used for X fonts, not for Xft fonts, since it is
  31   // assumed that X fonts will be the fallback from Xft.
  32   inline static std::string fallbackFont(void) { return _fallback_font; }
  33   inline static void setFallbackFont(const std::string &f)
  34     { _fallback_font = f; }
  35
  36   /*
  37    * instance members
  38    */
  39 private:
  40   int               _screen_num;
  41
  42   std::string       _fontstring;
  43
  44   bool              _shadow;
  45   unsigned char     _offset;
  46   unsigned char     _tint;
  47
  48   XftFont          *_xftfont;
  49
  50   bool createXftFont(void);
  51
  52 public:
  53   // loads an Xft font
  54   Font(int screen_num, const std::string &fontstring, bool shadow,
  55         unsigned char offset, unsigned char tint);
  56   virtual ~Font();
  57
  58   inline const std::string &fontstring() const { return _fontstring; }
  59
  60   int height() const;
  61   int maxCharWidth() const;
  62
  63   int measureString(const ustring &string) const;
  64
  65   // The RenderControl classes use the internal data to render the fonts, but
  66   // noone else needs it, so its private.
  67   friend class RenderControl;
  68 };
  69
  70 }
  71
  72 #endif // __font_hh