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qt3/src/codecs/qfontcncodec.cpp

329 lines
8.2 KiB

/****************************************************************************
**
** Chinese 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_UnicodeToGbk(uint unicode, uchar *gbchar);
int QFontGb2312Codec::heuristicContentMatch(const char *, int) const
{
return 0;
}
QFontGb2312Codec::QFontGb2312Codec()
{
//qDebug("QFontGb2312Codec::QFontGb2312Codec()");
}
const char* QFontGb2312Codec::name() const
{
//qDebug("QFontGb2312Codec::name() = \"gb2312.1980-0\"");
return "gb2312.1980-0";
}
int QFontGb2312Codec::mibEnum() const
{
//qDebug("QFontGb2312Codec::mibEnum() = 57");
return 57;
}
QString QFontGb2312Codec::toUnicode(const char* /*chars*/, int /*len*/) const
{
return QString::null;
}
unsigned short QFontGb2312Codec::characterFromUnicode(const QString &str, int pos) const
{
uchar buf[4];
int len = qt_UnicodeToGbk((str.unicode() + pos)->unicode(), buf);
if (len == 2 && buf[0] > 0xa0 && buf[1] > 0xa0)
return ((buf[0] & 0x7f) << 8) + (buf[1] & 0x7f);
return 0;
}
QCString QFontGb2312Codec::fromUnicode(const QString& uc, int& lenInOut ) const
{
QCString result(lenInOut * 2 + 1);
uchar *rdata = (uchar *) result.data();
const QChar *ucp = uc.unicode();
//qDebug("QFontGb2312Codec::fromUnicode(const QString& uc, int& lenInOut = %d)", lenInOut);
for ( int i = 0; i < lenInOut; i++ ) {
QChar ch(*ucp++);
uchar buf[8];
int len = qt_UnicodeToGbk( ch.unicode(), buf );
if ( len == 2 && buf[0] > 0xa0 && buf[1] > 0xa0 ) {
*rdata++ = buf[0] & 0x7f;
*rdata++ = buf[1] & 0x7f;
} else {
//white square
*rdata++ = 0x21;
*rdata++ = 0x75;
}
}
lenInOut *= 2;
return result;
}
void QFontGb2312Codec::fromUnicode(const QChar *in, unsigned short *out, int length) const
{
int len;
uchar buf[8];
while (length--) {
len = qt_UnicodeToGbk(in->unicode(), buf);
if ( len == 2 && buf[0] > 0xa0 && buf[1] > 0xa0 ) {
*out = (((buf[0] << 8) | buf[1]) & 0x7f7f);
} else {
*out = 0;
}
++in;
++out;
}
}
bool QFontGb2312Codec::canEncode( QChar ch ) const
{
uchar buf[4];
int len = qt_UnicodeToGbk( ch.unicode(), buf );
//qDebug("QFontGb2312Codec::canEncode( QChar ch = %02X%02X )", ch.row(), ch.cell());
return ( len == 2 && buf[0] > 0xa0 && buf[1] > 0xa0 );
}
//==========================================================================
int QFontGbkCodec::heuristicContentMatch(const char *, int) const
{
return 0;
}
int QFontGbkCodec::heuristicNameMatch(const char* hint) const
{
//qDebug("QFontGbkCodec::heuristicNameMatch(const char* hint = \"%s\")", hint);
return ( qstricmp(hint, "gbk-0") == 0 ||
qstricmp(hint, "gb18030.2000-0") == 0 )
? 13 : 0;
}
QFontGbkCodec::QFontGbkCodec()
{
//qDebug("QFontGbkCodec::QFontGbkCodec()");
}
const char* QFontGbkCodec::name() const
{
//qDebug("QFontGbkCodec::name() = \"gbk-0\"");
return "gbk-0";
}
int QFontGbkCodec::mibEnum() const
{
//qDebug("QFontGbkCodec::mibEnum() = -113");
return -113;
}
QString QFontGbkCodec::toUnicode(const char* /*chars*/, int /*len*/) const
{
return QString::null;
}
unsigned short QFontGbkCodec::characterFromUnicode(const QString &str, int pos) const
{
uchar buf[4];
int len = qt_UnicodeToGbk((str.unicode() + pos)->unicode(), buf);
if (len == 2)
return (buf[0] << 8) + buf[1];
return 0;
}
QCString QFontGbkCodec::fromUnicode(const QString& uc, int& lenInOut ) const
{
QCString result(lenInOut * 2 + 1);
uchar *rdata = (uchar *) result.data();
const QChar *ucp = uc.unicode();
//qDebug("QFontGbkCodec::fromUnicode(const QString& uc, int& lenInOut = %d)", lenInOut);
for ( int i = 0; i < lenInOut; i++ ) {
QChar ch(*ucp++);
uchar buf[8];
int len = qt_UnicodeToGbk( ch.unicode(), buf );
if ( len == 2 ) {
*rdata++ = buf[0];
*rdata++ = buf[1];
} else {
//white square
*rdata++ = 0xa1;
*rdata++ = 0xf5;
}
}
lenInOut *= 2;
return result;
}
void QFontGbkCodec::fromUnicode(const QChar *in, unsigned short *out, int length) const
{
uchar buf[8];
while (length--) {
*out++ = (qt_UnicodeToGbk(in->unicode(), buf) == 2) ? (buf[0] << 8) | buf[1] : 0;
++in;
}
}
bool QFontGbkCodec::canEncode( QChar ch ) const
{
if (ch.unicode() >= 0x4e00 && ch.unicode() <= 0x9fa5)
return TRUE;
uchar buf[4];
int len = qt_UnicodeToGbk( ch.unicode(), buf );
//qDebug("QFontGbkCodec::canEncode( QChar ch = %02X%02X )", ch.row(), ch.cell());
return ( len == 2 );
}
//==========================================================================
int QFontGb18030_0Codec::heuristicContentMatch(const char *, int) const
{
return 0;
}
QFontGb18030_0Codec::QFontGb18030_0Codec()
{
//qDebug("QFontGb18030_0Codec::QFontGb18030_0Codec()");
}
const char* QFontGb18030_0Codec::name() const
{
//qDebug("QFontGb18030_0Codec::name() = \"gb18030-0\"");
return "gb18030-0";
}
int QFontGb18030_0Codec::mibEnum() const
{
//qDebug("QFontGb18030_0Codec::mibEnum() = -114");
return -114;
}
QString QFontGb18030_0Codec::toUnicode(const char* /*chars*/, int /*len*/) const
{
return QString::null;
}
unsigned short
QFontGb18030_0Codec::characterFromUnicode(const QString &str, int pos) const
{
const QChar * const ch = str.unicode() + pos;
if (ch->row () > 0 && !(ch->row () >= 0xd8 && ch->row () < 0xe0))
return ch->unicode();
return 0;
}
QCString QFontGb18030_0Codec::fromUnicode(const QString& uc, int& lenInOut ) const
{
QCString result(lenInOut * 2 + 1);
uchar *rdata = (uchar *) result.data();
const QChar *ucp = uc.unicode();
//qDebug("QFontGb18030_0Codec::fromUnicode(const QString& uc, int& lenInOut = %d)", lenInOut);
for ( int i = 0; i < lenInOut; i++ ) {
QChar ch(*ucp++);
if (ch.row () > 0 && !(ch.row () >= 0xd8 && ch.row () < 0xe0)) {
*rdata++ = ch.row();
*rdata++ = ch.cell();
} else {
*rdata++ = 0xff;
*rdata++ = 0xfd;
}
}
lenInOut *= 2;
return result;
}
void QFontGb18030_0Codec::fromUnicode(const QChar *in, unsigned short *out, int length) const
{
while (length--) {
*out = ((in->row () > 0 && !(in->row () >= 0xd8 && in->row () < 0xe0))
? in->unicode() : 0);
++in;
++out;
}
}
bool QFontGb18030_0Codec::canEncode( QChar ch ) const
{
//qDebug("QFontGb18030_0Codec::canEncode( QChar ch = %02X%02X )", ch.row(), ch.cell());
return (ch.row () > 0 && !(ch.row () >= 0xd8 && ch.row () < 0xe0));
}
//==========================================================================
#endif // QT_NO_BIG_CODECS
#endif // QT_NO_CODECS