otk/font.cc (raw)
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// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*- #ifdef HAVE_CONFIG_H # include "../config.h" #endif // HAVE_CONFIG_H extern "C" { #ifdef HAVE_STDLIB_H # include <stdlib.h> #endif // HAVE_STDLIB_H } #include <iostream> #include <algorithm> #include "font.hh" #include "util.hh" #include "display.hh" #include "color.hh" #include "screeninfo.hh" extern "C" { #ifdef HAVE_STDIO_H # include <stdio.h> #endif // HAVE_STDIO_H #include "gettext.h" #define _(str) gettext(str) } namespace otk { std::string Font::_fallback_font = "fixed"; bool Font::_xft_init = false; Font::Font(int screen_num, const std::string &fontstring, bool shadow, unsigned char offset, unsigned char tint) : _screen_num(screen_num), _fontstring(fontstring), _shadow(shadow), _offset(offset), _tint(tint), _xftfont(0) { assert(screen_num >= 0); assert(tint <= CHAR_MAX); if (!_xft_init) { if (!XftInit(0)) { printf(_("Couldn't initialize Xft.\n\n")); ::exit(3); } int version = XftGetVersion(); printf(_("Using Xft %d.%d.%d.\n"), version / 10000 % 100, version / 100 % 100, version % 100); _xft_init = true; } if ((_xftfont = XftFontOpenName(Display::display, _screen_num, _fontstring.c_str()))) return; printf(_("Unable to load font: %s\n"), _fontstring.c_str()); printf(_("Trying fallback font: %s\n"), _fallback_font.c_str()); if ((_xftfont = XftFontOpenName(Display::display, _screen_num, _fallback_font.c_str()))) return; printf(_("Unable to load font: %s\n"), _fallback_font.c_str()); printf(_("Aborting!.\n")); ::exit(3); // can't continue without a font } Font::~Font(void) { if (_xftfont) XftFontClose(Display::display, _xftfont); } void Font::drawString(XftDraw *d, int x, int y, const Color &color, const ustring &string) const { assert(d); if (_shadow) { XftColor c; c.color.red = 0; c.color.green = 0; c.color.blue = 0; c.color.alpha = _tint | _tint << 8; // transparent shadow c.pixel = BlackPixel(Display::display, _screen_num); if (string.utf8()) XftDrawStringUtf8(d, &c, _xftfont, x + _offset, _xftfont->ascent + y + _offset, (FcChar8*)string.c_str(), string.size()); else XftDrawString8(d, &c, _xftfont, x + _offset, _xftfont->ascent + y + _offset, (FcChar8*)string.c_str(), string.size()); } XftColor c; c.color.red = color.red() | color.red() << 8; c.color.green = color.green() | color.green() << 8; c.color.blue = color.blue() | color.blue() << 8; c.pixel = color.pixel(); c.color.alpha = 0xff | 0xff << 8; // no transparency in Color yet if (string.utf8()) XftDrawStringUtf8(d, &c, _xftfont, x, _xftfont->ascent + y, (FcChar8*)string.c_str(), string.size()); else XftDrawString8(d, &c, _xftfont, x, _xftfont->ascent + y, (FcChar8*)string.c_str(), string.size()); return; } unsigned int Font::measureString(const ustring &string) const { XGlyphInfo info; if (string.utf8()) XftTextExtentsUtf8(Display::display, _xftfont, (FcChar8*)string.c_str(), string.size(), &info); else XftTextExtents8(Display::display, _xftfont, (FcChar8*)string.c_str(), string.size(), &info); return info.xOff + (_shadow ? _offset : 0); } unsigned int Font::height(void) const { return _xftfont->height + (_shadow ? _offset : 0); } unsigned int Font::maxCharWidth(void) const { return _xftfont->max_advance_width; } } |