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

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2
   3 #include "config.h"
   4
   5 #include "font.hh"
   6 #include "surface.hh"
   7 #include "util.hh"
   8 #include "display.hh"
   9 #include "screeninfo.hh"
  10
  11 extern "C" {
  12 #include "../src/gettext.h"
  13 #define _(str) gettext(str)
  14 }
  15
  16 #include <cstdio>
  17 #include <cstdlib>
  18 #include <iostream>
  19 #include <algorithm>
  20
  21 namespace otk {
  22
  23 bool        Font::_xft_init      = false;
  24
  25 Font::Font(int screen_num, const std::string &fontstring,
  26              bool shadow, unsigned char offset, unsigned char tint)
  27   : _screen_num(screen_num),
  28     _fontstring(fontstring),
  29     _shadow(shadow),
  30     _offset(offset),
  31     _tint(tint),
  32     _xftfont(0)
  33 {
  34   assert(screen_num >= 0);
  35   assert(tint <= CHAR_MAX);
  36
  37   if (!_xft_init) {
  38     if (!XftInit(0)) {
  39       printf(_("Couldn't initialize Xft.\n\n"));
  40       ::exit(3);
  41     }
  42     int version = XftGetVersion();
  43     printf(_("Using Xft %d.%d.%d (Built against %d.%d.%d).\n"),
  44            version / 10000 % 100, version / 100 % 100, version % 100,
  45            XFT_MAJOR, XFT_MINOR, XFT_REVISION);
  46     _xft_init = true;
  47   }
  48
  49   if ((_xftfont = XftFontOpenName(**display, _screen_num,
  50                                   _fontstring.c_str())))
  51     return;
  52
  53   printf(_("Unable to load font: %s\n"), _fontstring.c_str());
  54   printf(_("Trying fallback font: %s\n"), "fixed");
  55
  56   if ((_xftfont = XftFontOpenName(**display, _screen_num,
  57                                   "fixed")))
  58     return;
  59
  60   printf(_("Unable to load font: %s\n"), "fixed");
  61   printf(_("Aborting!.\n"));
  62
  63   ::exit(3); // can't continue without a font
  64 }
  65
  66
  67 Font::~Font(void)
  68 {
  69   if (_xftfont)
  70     XftFontClose(**display, _xftfont);
  71 }
  72
  73
  74 int Font::measureString(const ustring &string) const
  75 {
  76   XGlyphInfo info;
  77
  78   if (string.utf8())
  79     XftTextExtentsUtf8(**display, _xftfont,
  80                        (FcChar8*)string.c_str(), string.bytes(), &info);
  81   else
  82     XftTextExtents8(**display, _xftfont,
  83                     (FcChar8*)string.c_str(), string.bytes(), &info);
  84
  85   return (signed) info.xOff + (_shadow ? _offset : 0);
  86 }
  87
  88
  89 int Font::height(void) const
  90 {
  91   return (signed) _xftfont->height + (_shadow ? _offset : 0);
  92 }
  93
  94
  95 int Font::maxCharWidth(void) const
  96 {
  97   return (signed) _xftfont->max_advance_width;
  98 }
  99
 100 }