| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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 |
| |