206 lines
6 KiB
C++
206 lines
6 KiB
C++
// 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 1.4 2003/01/05 23:00:19 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
|
|
|
|
// for multibyte support
|
|
#ifdef USE_XMB
|
|
#include "XmbFontImp.hh"
|
|
#endif //USE_XMB
|
|
|
|
// standard font system
|
|
#include "XFontImp.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>
|
|
#include <typeinfo>
|
|
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), m_rotated(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.reset(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) {
|
|
#ifdef USE_XMB
|
|
if (m_multibyte || m_utf8mode)
|
|
m_fontimp.reset(new XmbFontImp(0, m_utf8mode));
|
|
else // basic font implementation
|
|
#endif // USE_XMB
|
|
m_fontimp.reset(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_rotated) {
|
|
m_fontimp.reset(new XftFontImp(m_fontstr.c_str(), m_utf8mode));
|
|
} else if (!flag && isAntialias())
|
|
#endif // USE_XFT
|
|
{
|
|
#ifdef USE_XMB
|
|
if (m_multibyte || m_utf8mode)
|
|
m_fontimp.reset(new XmbFontImp(m_fontstr.c_str(), m_utf8mode));
|
|
else
|
|
#endif // USE_XMB
|
|
m_fontimp.reset(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;
|
|
m_fontstr = name;
|
|
return m_fontimp->load(name);
|
|
}
|
|
|
|
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();
|
|
}
|
|
|
|
int Font::ascent() const {
|
|
return m_fontimp->ascent();
|
|
}
|
|
|
|
int Font::descent() const {
|
|
return m_fontimp->descent();
|
|
}
|
|
void Font::drawText(Drawable w, int screen, GC gc, const char *text, size_t len, int x, int y,
|
|
bool rotate) const {
|
|
if (text == 0 || len == 0)
|
|
return;
|
|
if (!rotate && isRotated()) {
|
|
// if this was called with request to not rotated the text
|
|
// we just forward it to the implementation that handles rotation
|
|
// currently just XFontImp
|
|
// Using dynamic_cast just temporarly until there's a better solution
|
|
// to put in FontImp
|
|
try {
|
|
XFontImp *font = dynamic_cast<XFontImp *>(m_fontimp.get());
|
|
font->setRotate(false); // disable rotation temporarly
|
|
font->drawText(w, screen, gc, text, len, x, y);
|
|
font->setRotate(true); // enable rotation
|
|
} catch (std::bad_cast &bc) {
|
|
// draw normal...
|
|
m_fontimp->drawText(w, screen, gc, text, len, x, y);
|
|
}
|
|
|
|
} else
|
|
m_fontimp->drawText(w, screen, gc, text, len, x, y);
|
|
}
|
|
|
|
void Font::rotate(float angle) {
|
|
#ifdef USE_XFT
|
|
// if we are rotated and we are changing to horiz text
|
|
// and we were antialiased before we rotated then change to XftFontImp
|
|
if (isRotated() && angle == 0 && isAntialias())
|
|
m_fontimp.reset(new XftFontImp(m_fontstr.c_str(), m_utf8mode));
|
|
#endif // USE_XFT
|
|
// change to a font imp that handles rotated fonts (i.e just XFontImp at the moment)
|
|
// if we're going to rotate this font
|
|
if (angle != 0 && isAntialias() && !isRotated()) {
|
|
m_fontimp.reset(new XFontImp(m_fontstr.c_str()));
|
|
if (!m_fontimp->loaded()) // if it failed to load font, try default font fixed
|
|
m_fontimp->load("fixed");
|
|
}
|
|
|
|
//Note: only XFontImp implements FontImp::rotate
|
|
m_fontimp->rotate(angle);
|
|
|
|
m_rotated = (angle == 0 ? false : true);
|
|
m_angle = angle;
|
|
}
|
|
|
|
};
|