Dogcows Code - chaz/openbox/blob - src/Font.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; -*-
   2 // Font.hh for Blackbox - an X11 Window manager
   3 // Copyright (c) 2001 - 2002 Sean 'Shaleh' Perry <shaleh@debian.org>
   4 // Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining a
   7 // copy of this software and associated documentation files (the "Software"),
   8 // to deal in the Software without restriction, including without limitation
   9 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 // and/or sell copies of the Software, and to permit persons to whom the
  11 // Software is furnished to do so, subject to the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be included in
  14 // all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22 // DEALINGS IN THE SOFTWARE.
  23
  24 #ifndef   __Font_hh
  25 #define   __Font_hh
  26
  27 extern "C" {
  28 #include <X11/Xlib.h>
  29
  30 #ifdef XFT
  31 #  include <X11/Xft/Xft.h>
  32 #endif
  33 }
  34
  35 #include <assert.h>
  36
  37 #include <string>
  38
  39 class BGCCache;
  40 class BGCCacheItem;
  41 class BColor;
  42
  43 #include "Screen.hh"
  44
  45 class BFont {
  46   /*
  47    * static members
  48    */
  49 private:
  50   static std::string  _fallback_font;
  51
  52 public:
  53   // the fallback is only used for X fonts, not for Xft fonts, since it is
  54   // assumed that X fonts will be the fallback from Xft.
  55   inline static std::string fallbackFont(void) { return _fallback_font; }
  56   inline static void setFallbackFont(const std::string &f)
  57     { _fallback_font = f; }
  58
  59   /*
  60    * instance members
  61    */
  62 private:
  63   Display          *_display;
  64   BScreen          *_screen;
  65
  66   std::string       _family;
  67   bool              _simplename;  // true if not spec'd as a -*-* string
  68   int               _size;
  69   bool              _bold;
  70   bool              _italic;
  71
  72 #ifdef XFT
  73   bool              _antialias;
  74
  75   XftFont          *_xftfont;
  76
  77   bool createXftFont(void);
  78 #endif
  79
  80   // standard
  81   XFontStruct      *_font;
  82   // multibyte
  83   XFontSet          _fontset;
  84   XFontSetExtents  *_fontset_extents;
  85
  86   std::string buildXlfd(void) const;
  87   std::string buildMultibyteXlfd(void) const;
  88
  89   bool createXFont(const std::string &xlfd);
  90   bool parseXlfd(const std::string &xlfd);
  91
  92   bool              _valid;
  93
  94 public:
  95 #ifdef XFT
  96   // loads an Xft font
  97   BFont(Display *d, BScreen *screen, const std::string &family, int size,
  98         bool bold, bool italic, bool antialias = True);
  99 #endif
 100   // loads a standard X font
 101   BFont(Display *d, BScreen *screen, const std::string &xlfd);
 102   virtual ~BFont(void);
 103
 104   inline bool valid(void) const { return _valid; }
 105
 106   inline std::string family(void) const { assert(_valid); return _family; }
 107   inline int size(void) const { assert(_valid); return _size; }
 108   inline bool bold(void) const { assert(_valid); return _bold; }
 109   inline bool italic(void) const { assert(_valid); return _italic; }
 110
 111   unsigned int height(void) const;
 112   unsigned int maxCharWidth(void) const;
 113
 114   unsigned int measureString(const std::string &string) const;
 115
 116   void drawString(Drawable d, int x, int y, const BColor &color,
 117                   const std::string &string) const;
 118 };
 119
 120 #endif // __Font_hh