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qt3/src/codecs/qfonttwcodec.cpp

163 lines
4.5 KiB

/****************************************************************************
**
** Taiwan Font utilities for X11
**
** Created : 20010130
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the tools module of the Qt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#include "private/qfontcodecs_p.h"
#ifndef QT_NO_CODECS
#ifndef QT_NO_BIG_CODECS
extern int qt_UnicodeToBig5hkscs(uint wc, uchar *r);
int QFontBig5Codec::heuristicContentMatch(const char *, int) const
{
return 0;
}
int QFontBig5Codec::heuristicNameMatch(const char* hint) const
{
//tqDebug("QFontBig5Codec::heuristicNameMatch(const char* hint = \"%s\")", hint);
return ( tqstricmp(hint, "big5-0") == 0 ||
tqstricmp(hint, "big5.eten-0") == 0 )
? 13 : 0;
}
QFontBig5Codec::QFontBig5Codec()
{
//tqDebug("QFontBig5Codec::QFontBig5Codec()");
}
const char* QFontBig5Codec::name() const
{
//tqDebug("QFontBig5Codec::name() = \"big5-0\"");
return "big5-0";
}
int QFontBig5Codec::mibEnum() const
{
//tqDebug("QFontBig5Codec::mibEnum() = -2026");
return -2026;
}
QString QFontBig5Codec::toUnicode(const char* /*chars*/, int /*len*/) const
{
return QString::null;
}
unsigned short QFontBig5Codec::characterFromUnicode(const QString &str, int pos) const
{
uchar c[2];
if (qt_UnicodeToBig5hkscs((str.unicode() + pos)->unicode(), c) == 2 &&
c[0] >= 0xa1 && c[0] <= 0xf9 )
return (c[0] << 8) + c[1];
return 0;
}
QCString QFontBig5Codec::fromUnicode(const QString& uc, int& lenInOut ) const
{
//tqDebug("QFontBig5Codec::fromUnicode(const QString& uc, int& lenInOut = %d)", lenInOut);
QCString result(lenInOut * 2 + 1);
uchar *rdata = (uchar *) result.data();
const QChar *ucp = uc.unicode();
for ( int i = 0; i < lenInOut; i++ ) {
QChar ch(*ucp++);
uchar c[2];
#if 0
if ( ch.row() == 0) {
if ( ch.cell() == ' ' )
ch = QChar( 0x3000 );
else if ( ch.cell() > ' ' && ch.cell() < 127 )
ch = QChar( ch.cell()-' ', 255 );
}
#endif
if ( qt_UnicodeToBig5hkscs( ch.unicode(), c ) == 2 &&
c[0] >= 0xa1 && c[0] <= 0xf9 ) {
*rdata++ = c[0];
*rdata++ = c[1];
} else {
//white square
*rdata++ = 0xa1;
*rdata++ = 0xbc;
}
}
lenInOut *=2;
return result;
}
/*! \internal */
void QFontBig5Codec::fromUnicode(const QChar *in, unsigned short *out, int length) const
{
uchar c[2];
while (length--) {
if ( in->row() == 0x00 && in->cell() < 0x80 ) {
// ASCII
*out = in->cell();
} else if ( qt_UnicodeToBig5hkscs( in->unicode(), c ) == 2
&& c[0] >= 0xa1 && c[0] <= 0xf9 ) {
// Big5-ETen
*out = (c[0] << 8) | c[1];
} else {
// Unknown char
*out = 0;
}
++in;
++out;
}
}
bool QFontBig5Codec::canEncode( QChar ch ) const
{
//tqDebug("QFontBig5Codec::canEncode( QChar ch = %02X%02X )", ch.row(), ch.cell());
uchar c[2];
return ( qt_UnicodeToBig5hkscs( ch.unicode(), c ) == 2 &&
c[0] >= 0xa1 && c[0] <= 0xf9 );
}
#endif // QT_NO_BIG_CODECS
#endif // QT_NO_CODECS