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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "rtl/textcvt.h"
#include <tools/debug.hxx>
namespace { // anonymous namespace
// ====================================================================
#define MAX_CVT_SELECT 6
class ConverterCache
{
public:
explicit ConverterCache( void );
~ConverterCache( void );
sal_uInt16 convertOne( int nSelect, sal_Unicode );
void convertStr( int nSelect, const sal_Unicode* pSrc, sal_uInt16* pDst, int nCount );
protected:
void ensureConverter( int nSelect );
private:
rtl_UnicodeToTextConverter maConverterCache[ MAX_CVT_SELECT+1 ];
rtl_UnicodeToTextContext maContexts[ MAX_CVT_SELECT+1 ];
};
// ====================================================================
ConverterCache::ConverterCache( void)
{
for( int i = 0; i <= MAX_CVT_SELECT; ++i)
{
maConverterCache[i] = NULL;
maContexts[i] = NULL;
}
}
// --------------------------------------------------------------------
ConverterCache::~ConverterCache( void)
{
for( int i = 0; i <= MAX_CVT_SELECT; ++i)
{
if( !maContexts[i] )
continue;
rtl_destroyUnicodeToTextContext( maConverterCache[i], maContexts[i] );
rtl_destroyUnicodeToTextConverter( maConverterCache[i] );
}
}
// --------------------------------------------------------------------
void ConverterCache::ensureConverter( int nSelect )
{
// DBG_ASSERT( (2<=nSelect) && (nSelect<=MAX_CVT_SELECT)), "invalid XLAT.Converter requested" );
rtl_UnicodeToTextContext aContext = maContexts[ nSelect ];
if( !aContext )
{
rtl_TextEncoding eRecodeFrom = RTL_TEXTENCODING_UNICODE;
switch( nSelect )
{
default: nSelect = 1; // fall through to unicode recoding
case 1: eRecodeFrom = RTL_TEXTENCODING_UNICODE; break;
case 2: eRecodeFrom = RTL_TEXTENCODING_SHIFT_JIS; break;
case 3: eRecodeFrom = RTL_TEXTENCODING_GB_2312; break;
case 4: eRecodeFrom = RTL_TEXTENCODING_BIG5; break;
case 5: eRecodeFrom = RTL_TEXTENCODING_MS_949; break;
case 6: eRecodeFrom = RTL_TEXTENCODING_MS_1361; break;
}
rtl_UnicodeToTextConverter aRecodeConverter = rtl_createUnicodeToTextConverter( eRecodeFrom );
maConverterCache[ nSelect ] = aRecodeConverter;
aContext = rtl_createUnicodeToTextContext( aRecodeConverter );
maContexts[ nSelect ] = aContext;
}
rtl_resetUnicodeToTextContext( maConverterCache[ nSelect ], aContext );
}
// --------------------------------------------------------------------
sal_uInt16 ConverterCache::convertOne( int nSelect, sal_Unicode aChar )
{
ensureConverter( nSelect );
sal_Unicode aUCS2Char = aChar;
sal_Char aTempArray[8];
sal_Size nTempSize;
sal_uInt32 nCvtInfo;
// TODO: use direct unicode->mbcs converter should there ever be one
int nCodeLen = rtl_convertUnicodeToText(
maConverterCache[ nSelect ], maContexts[ nSelect ],
&aUCS2Char, 1, aTempArray, sizeof(aTempArray),
RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0
| RTL_UNICODETOTEXT_FLAGS_INVALID_0,
&nCvtInfo, &nTempSize );
sal_uInt16 aCode = aTempArray[0];
for( int i = 1; i < nCodeLen; ++i )
aCode = (aCode << 8) + (aTempArray[i] & 0xFF);
return aCode;
}
// --------------------------------------------------------------------
void ConverterCache::convertStr( int nSelect, const sal_Unicode* pSrc, sal_uInt16* pDst, int nCount )
{
ensureConverter( nSelect );
for( int n = 0; n < nCount; ++n )
{
sal_Unicode aUCS2Char = pSrc[n];
sal_Char aTempArray[8];
sal_Size nTempSize;
sal_uInt32 nCvtInfo;
// assume that non-unicode-fonts do not support codepoints >U+FFFF
// TODO: use direct unicode->mbcs converter should there ever be one
int nCodeLen = rtl_convertUnicodeToText(
maConverterCache[ nSelect ], maContexts[ nSelect ],
&aUCS2Char, 1, aTempArray, sizeof(aTempArray),
RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0
| RTL_UNICODETOTEXT_FLAGS_INVALID_0,
&nCvtInfo, &nTempSize );
sal_uInt16 aCode = aTempArray[0];
for( int i = 1; i < nCodeLen; ++i )
aCode = (aCode << 8) + (aTempArray[i] & 0xFF);
pDst[n] = aCode;
}
}
} // anonymous namespace
// ====================================================================
#include "xlat.hxx"
namespace vcl
{
static ConverterCache aCC;
sal_uInt16 TranslateChar12(sal_uInt16 src)
{
return aCC.convertOne( 2, src);
}
sal_uInt16 TranslateChar13(sal_uInt16 src)
{
return aCC.convertOne( 3, src);
}
sal_uInt16 TranslateChar14(sal_uInt16 src)
{
return aCC.convertOne( 4, src);
}
sal_uInt16 TranslateChar15(sal_uInt16 src)
{
return aCC.convertOne( 5, src);
}
sal_uInt16 TranslateChar16(sal_uInt16 src)
{
return aCC.convertOne( 6, src);
}
void TranslateString12(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
aCC.convertStr( 2, src, dst, n);
}
void TranslateString13(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
aCC.convertStr( 3, src, dst, n);
}
void TranslateString14(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
aCC.convertStr( 4, src, dst, n);
}
void TranslateString15(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
aCC.convertStr( 5, src, dst, n);
}
void TranslateString16(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
{
aCC.convertStr( 6, src, dst, n);
}
} // namespace vcl
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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