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// Font.cc
// Copyright (c) 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//$Id: Font.cc,v 1.15 2002/10/16 23:22:45 fluxgen Exp $
#include "Font.hh"
#include "FontImp.hh"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif // HAVE_CONFIG_H
// for antialias
#ifdef USE_XFT
#include "XftFontImp.hh"
#endif // USE_XFT
// standard font system
#include "XFontImp.hh"
#include "XmbFontImp.hh"
#include "StringUtil.hh"
//use gnu extensions
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif //_GNU_SOURCE
#ifndef __USE_GNU
#define __USE_GNU
#endif //__USE_GNU
#include <iostream>
#include <cstring>
#include <cstdlib>
using namespace std;
#ifdef HAVE_SETLOCALE
#include <locale.h>
#endif //HAVE_SETLOCALE
namespace FbTk {
bool Font::m_multibyte = false;
bool Font::m_utf8mode = false;
Font::Font(const char *name, bool antialias):
m_fontimp(0),
m_antialias(false) {
// MB_CUR_MAX returns the size of a char in the current locale
if (MB_CUR_MAX > 1) // more than one byte, then we're multibyte
m_multibyte = true;
char *s; // temporary string for enviroment variable
// check for utf-8 mode
if (((s = getenv("LC_ALL")) && *s) ||
((s = getenv("LC_CTYPE")) && *s) ||
((s = getenv("LANG")) && *s)) {
if (strstr(s, "UTF-8"))
m_utf8mode = true;
}
// create the right font implementation
// antialias is prio 1
#ifdef USE_XFT
if (antialias) {
m_fontimp = std::auto_ptr<FontImp>(new XftFontImp(0, m_utf8mode));
m_antialias = true;
}
#endif //USE_XFT
// if we didn't create a Xft font then create basic font
if (m_fontimp.get() == 0) {
if (m_multibyte || m_utf8mode)
m_fontimp = std::auto_ptr<FontImp>(new XmbFontImp(0, m_utf8mode));
else // basic font implementation
m_fontimp = std::auto_ptr<FontImp>(new XFontImp());
}
if (name != 0) {
load(name);
}
}
Font::~Font() {
}
void Font::setAntialias(bool flag) {
bool loaded = m_fontimp->loaded();
#ifdef USE_XFT
if (flag && !isAntialias()) {
m_fontimp = std::auto_ptr<FontImp>(new XftFontImp(m_fontstr.c_str(), m_utf8mode));
} else if (!flag && isAntialias())
#endif // USE_XFT
{
if (m_multibyte || m_utf8mode)
m_fontimp = std::auto_ptr<FontImp>(new XmbFontImp(m_fontstr.c_str(), m_utf8mode));
else {
m_fontimp = std::auto_ptr<FontImp>(new XFontImp(m_fontstr.c_str()));
}
}
if (m_fontimp->loaded() != loaded) { // if the new font failed to load, fall back to 'fixed'
if (!m_fontimp->load("fixed")) // if that failes too, output warning
cerr<<"Warning: can't load fallback font 'fixed'."<<endl;
}
m_antialias = flag;
}
bool Font::load(const char *name) {
if (name == 0)
return false;
bool ret_val = m_fontimp->load(name);
if (ret_val && name == 0) { //prevent from having a bad fontimp
m_fontstr = name; // if the load really succeded then set font string
} else {
m_fontstr = "";
}
return ret_val;
}
unsigned int Font::textWidth(const char * const text, unsigned int size) const {
return m_fontimp->textWidth(text, size);
}
unsigned int Font::height() const {
return m_fontimp->height();
}
void Font::drawText(Drawable w, int screen, GC gc, const char *text, size_t len, int x, int y) const {
if (text == 0 || len == 0)
return;
m_fontimp->drawText(w, screen, gc, text, len, x, y);
}
};
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