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 #ifdef DEBUG
  43     int version = XftGetVersion();
  44     printf("Using Xft %d.%d.%d (Built against %d.%d.%d).\n",
  45            version / 10000 % 100, version / 100 % 100, version % 100,
  46            XFT_MAJOR, XFT_MINOR, XFT_REVISION);
  47 #endif
  48     _xft_init = true;
  49   }
  50
  51   if ((_xftfont = XftFontOpenName(**display, _screen_num,
  52                                   _fontstring.c_str())))
  53     return;
  54
  55   printf(_("Unable to load font: %s\n"), _fontstring.c_str());
  56   printf(_("Trying fallback font: %s\n"), "fixed");
  57
  58   if ((_xftfont = XftFontOpenName(**display, _screen_num,
  59                                   "fixed")))
  60     return;
  61
  62   printf(_("Unable to load font: %s\n"), "fixed");
  63   printf(_("Aborting!.\n"));
  64
  65   ::exit(3); // can't continue without a font
  66 }
  67
  68
  69 Font::~Font(void)
  70 {
  71   if (_xftfont)
  72     XftFontClose(**display, _xftfont);
  73 }
  74
  75
  76 int Font::measureString(const ustring &string) const
  77 {
  78   XGlyphInfo info;
  79
  80   if (string.utf8())
  81     XftTextExtentsUtf8(**display, _xftfont,
  82                        (FcChar8*)string.c_str(), string.bytes(), &info);
  83   else
  84     XftTextExtents8(**display, _xftfont,
  85                     (FcChar8*)string.c_str(), string.bytes(), &info);
  86
  87   return (signed) info.xOff + (_shadow ? _offset : 0);
  88 }
  89
  90
  91 int Font::height(void) const
  92 {
  93   return (signed) _xftfont->height + (_shadow ? _offset : 0);
  94 }
  95
  96
  97 int Font::maxCharWidth(void) const
  98 {
  99   return (signed) _xftfont->max_advance_width;
 100 }
 101
 102 }