tqt3/src/codecs/qfontlaocodec.cpp

/****************************************************************************
**
** Font utilities for X11
**
** Created : 20001101
**
** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
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** and the KDE Free TQt Foundation.
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#include "private/qfontcodecs_p.h"

#ifndef TQT_NO_CODECS
#ifndef TQT_NO_BIG_CODECS

static unsigned char const unicode_to_mulelao[256] =
    {
	// U+0E80
	0x00, 0xa1, 0xa2, 0x00, 0xa4, 0x00, 0x00, 0xa7,
	0xa8, 0x00, 0xaa, 0x00, 0x00, 0xad, 0x00, 0x00,
	// U+0E90
	0x00, 0x00, 0x00, 0x00, 0xb4, 0xb5, 0xb6, 0xb7,
	0x00, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
	// U+0EA0
	0x00, 0xc1, 0xc2, 0xc3, 0x00, 0xc5, 0x00, 0xc7,
	0x00, 0x00, 0xca, 0xcb, 0x00, 0xcd, 0xce, 0xcf,
	// U+0EB0
	0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
	0xd8, 0xd9, 0x00, 0xdb, 0xdc, 0xdd, 0x00, 0x00,
	// U+0EC0
	0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0x00, 0xe6, 0x00,
	0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0x00, 0x00,
	// U+0ED0
	0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
	0xf8, 0xf9, 0x00, 0x00, 0xfc, 0xfd, 0x00, 0x00,
	// U+0EE0
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	// U+0EF0
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
    };


TQFontLaoCodec::TQFontLaoCodec()
{
}

const char *TQFontLaoCodec::name() const
{
    return "mulelao-1";
}

int TQFontLaoCodec::mibEnum() const
{
    return -4242;
}

unsigned short TQFontLaoCodec::characterFromUnicode(const TQString &str, int pos) const
{
    const TQChar * const ch = str.unicode() + pos;
    if (ch->unicode() < 0x80)
        return ch->unicode();
    if ( ch->unicode() >= 0x0e80 && ch->unicode() <= 0x0eff )
        return unicode_to_mulelao[ch->unicode() - 0x0e80];
    return 0;
}

TQCString TQFontLaoCodec::fromUnicode(const TQString& uc, int& lenInOut ) const
{
    TQCString rstring( lenInOut+1 );
    uchar *rdata = (uchar *) rstring.data();
    const TQChar *sdata = uc.unicode();
    int i = 0;
    for ( ; i < lenInOut; ++i, ++sdata, ++rdata ) {
	if ( sdata->unicode() < 0x80 ) {
	    *rdata = (uchar) sdata->unicode();
	} else if ( sdata->unicode() >= 0x0e80 && sdata->unicode() <= 0x0eff ) {
	    uchar lao = unicode_to_mulelao[sdata->unicode() - 0x0e80];
	    if ( lao )
		*rdata = lao;
	    else
		*rdata = '?';
	} else {
	    *rdata = '?';
	}
    }
    *rdata = 0u;
    return rstring;
}

void TQFontLaoCodec::fromUnicode(const TQChar *in, unsigned short *out, int length) const
{
    while (length--) {
	if ( in->unicode() < 0x80 ) {
	    *out = (uchar) in->unicode();
	} else if ( in->unicode() >= 0x0e80 && in->unicode() <= 0x0eff ) {
	    *out = unicode_to_mulelao[in->unicode() - 0x0e80];
	} else {
	    *out = 0;
	}

	++in;
	++out;
    }
}

int TQFontLaoCodec::heuristicContentMatch(const char *, int) const
{
    return -1;
}

bool TQFontLaoCodec::canEncode( TQChar ch ) const
{
    return ( ch.unicode() < 0x80 ||
	     unicode_to_mulelao[ch.unicode() - 0x0e80] != 0x00 );
}


#endif // TQT_NO_BIG_CODECS
#endif // TQT_NO_CODECS