LCOV - code coverage report
Current view: top level - vcl/source/fontsubset - xlat.cxx (source / functions) Hit Total Coverage
Test: commit c8344322a7af75b84dd3ca8f78b05543a976dfd5 Lines: 12 75 16.0 %
Date: 2015-06-13 12:38:46 Functions: 4 17 23.5 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include "rtl/textcvt.h"
      21             : #include "xlat.hxx"
      22             : #include <tools/debug.hxx>
      23             : 
      24             : namespace {
      25             : 
      26             : #define MAX_CVT_SELECT 6
      27             : 
      28             : class ConverterCache
      29             : {
      30             : public:
      31             :     explicit    ConverterCache();
      32             :                 ~ConverterCache();
      33             :     sal_uInt16  convertOne( int nSelect, sal_Unicode );
      34             :     void        convertStr( int nSelect, const sal_Unicode* pSrc, sal_uInt16* pDst, int nCount );
      35             : protected:
      36             :     void        ensureConverter( int nSelect );
      37             : private:
      38             :     rtl_UnicodeToTextConverter maConverterCache[ MAX_CVT_SELECT+1 ];
      39             :     rtl_UnicodeToTextContext maContexts[ MAX_CVT_SELECT+1 ];
      40             : };
      41             : 
      42         267 : ConverterCache::ConverterCache()
      43             : {
      44        2136 :     for( int i = 0; i <= MAX_CVT_SELECT; ++i)
      45             :     {
      46        1869 :         maConverterCache[i] = NULL;
      47        1869 :         maContexts[i] = NULL;
      48             :     }
      49         267 : }
      50             : 
      51         267 : ConverterCache::~ConverterCache()
      52             : {
      53        2136 :     for( int i = 0; i <= MAX_CVT_SELECT; ++i)
      54             :     {
      55        1869 :         if( !maContexts[i] )
      56        1869 :             continue;
      57           0 :         rtl_destroyUnicodeToTextContext( maConverterCache[i], maContexts[i] );
      58           0 :         rtl_destroyUnicodeToTextConverter( maConverterCache[i] );
      59             :     }
      60         267 : }
      61             : 
      62           0 : void ConverterCache::ensureConverter( int nSelect )
      63             : {
      64             :     // DBG_ASSERT( (2<=nSelect) && (nSelect<=MAX_CVT_SELECT)), "invalid XLAT.Converter requested" );
      65           0 :     rtl_UnicodeToTextContext aContext = maContexts[ nSelect ];
      66           0 :     if( !aContext )
      67             :     {
      68           0 :         rtl_TextEncoding eRecodeFrom = RTL_TEXTENCODING_UNICODE;
      69           0 :         switch( nSelect )
      70             :         {
      71           0 :             default: nSelect = 1; // fall through to unicode recoding
      72           0 :             case 1: eRecodeFrom = RTL_TEXTENCODING_UNICODE; break;
      73           0 :             case 2: eRecodeFrom = RTL_TEXTENCODING_SHIFT_JIS; break;
      74           0 :             case 3: eRecodeFrom = RTL_TEXTENCODING_GB_2312; break;
      75           0 :             case 4: eRecodeFrom = RTL_TEXTENCODING_BIG5; break;
      76           0 :             case 5: eRecodeFrom = RTL_TEXTENCODING_MS_949; break;
      77           0 :             case 6: eRecodeFrom = RTL_TEXTENCODING_MS_1361; break;
      78             :         }
      79           0 :         rtl_UnicodeToTextConverter aRecodeConverter = rtl_createUnicodeToTextConverter( eRecodeFrom );
      80           0 :         maConverterCache[ nSelect ] = aRecodeConverter;
      81             : 
      82           0 :         aContext = rtl_createUnicodeToTextContext( aRecodeConverter );
      83           0 :         maContexts[ nSelect ] = aContext;
      84             :     }
      85             : 
      86           0 :     rtl_resetUnicodeToTextContext( maConverterCache[ nSelect ], aContext );
      87           0 : }
      88             : 
      89           0 : sal_uInt16 ConverterCache::convertOne( int nSelect, sal_Unicode aChar )
      90             : {
      91           0 :     ensureConverter( nSelect );
      92             : 
      93           0 :     sal_Unicode aUCS2Char = aChar;
      94             :     sal_Char aTempArray[8];
      95             :     sal_Size nTempSize;
      96             :     sal_uInt32 nCvtInfo;
      97             : 
      98             :     // TODO: use direct unicode->mbcs converter should there ever be one
      99             :     int nCodeLen = rtl_convertUnicodeToText(
     100             :             maConverterCache[ nSelect ], maContexts[ nSelect ],
     101             :             &aUCS2Char, 1, aTempArray, sizeof(aTempArray),
     102             :             RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0
     103             :             | RTL_UNICODETOTEXT_FLAGS_INVALID_0,
     104           0 :             &nCvtInfo, &nTempSize );
     105             : 
     106           0 :     sal_uInt16 aCode = aTempArray[0];
     107           0 :     for( int i = 1; i < nCodeLen; ++i )
     108           0 :         aCode = (aCode << 8) + (aTempArray[i] & 0xFF);
     109           0 :     return aCode;
     110             : }
     111             : 
     112           0 : void ConverterCache::convertStr( int nSelect, const sal_Unicode* pSrc, sal_uInt16* pDst, int nCount )
     113             : {
     114           0 :     ensureConverter( nSelect );
     115             : 
     116           0 :     for( int n = 0; n < nCount; ++n )
     117             :     {
     118           0 :         sal_Unicode aUCS2Char = pSrc[n];
     119             : 
     120             :         sal_Char aTempArray[8];
     121             :         sal_Size nTempSize;
     122             :         sal_uInt32 nCvtInfo;
     123             : 
     124             :         // assume that non-unicode-fonts do not support codepoints >U+FFFF
     125             :         // TODO: use direct unicode->mbcs converter should there ever be one
     126             :         int nCodeLen = rtl_convertUnicodeToText(
     127             :             maConverterCache[ nSelect ], maContexts[ nSelect ],
     128             :             &aUCS2Char, 1, aTempArray, sizeof(aTempArray),
     129             :             RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0
     130             :             | RTL_UNICODETOTEXT_FLAGS_INVALID_0,
     131           0 :             &nCvtInfo, &nTempSize );
     132             : 
     133           0 :         sal_uInt16 aCode = aTempArray[0];
     134           0 :         for( int i = 1; i < nCodeLen; ++i )
     135           0 :             aCode = (aCode << 8) + (aTempArray[i] & 0xFF);
     136           0 :         pDst[n] = aCode;
     137             :     }
     138           0 : }
     139             : 
     140             : } // anonymous namespace
     141             : 
     142             : namespace vcl
     143             : {
     144             : 
     145         267 : static ConverterCache aCC;
     146             : 
     147           0 : sal_uInt16 TranslateChar12(sal_uInt16 src)
     148             : {
     149           0 :     return aCC.convertOne( 2, src);
     150             : }
     151             : 
     152           0 : sal_uInt16 TranslateChar13(sal_uInt16 src)
     153             : {
     154           0 :     return aCC.convertOne( 3, src);
     155             : }
     156             : 
     157           0 : sal_uInt16 TranslateChar14(sal_uInt16 src)
     158             : {
     159           0 :     return aCC.convertOne( 4, src);
     160             : }
     161             : 
     162           0 : sal_uInt16 TranslateChar15(sal_uInt16 src)
     163             : {
     164           0 :     return aCC.convertOne( 5, src);
     165             : }
     166             : 
     167           0 : sal_uInt16 TranslateChar16(sal_uInt16 src)
     168             : {
     169           0 :     return aCC.convertOne( 6, src);
     170             : }
     171             : 
     172           0 : void TranslateString12(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
     173             : {
     174           0 :     aCC.convertStr( 2, src, dst, n);
     175           0 : }
     176             : 
     177           0 : void TranslateString13(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
     178             : {
     179           0 :     aCC.convertStr( 3, src, dst, n);
     180           0 : }
     181             : 
     182           0 : void TranslateString14(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
     183             : {
     184           0 :     aCC.convertStr( 4, src, dst, n);
     185           0 : }
     186             : 
     187           0 : void TranslateString15(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
     188             : {
     189           0 :     aCC.convertStr( 5, src, dst, n);
     190           0 : }
     191             : 
     192           0 : void TranslateString16(sal_uInt16 *src, sal_uInt16 *dst, sal_uInt32 n)
     193             : {
     194           0 :     aCC.convertStr( 6, src, dst, n);
     195           0 : }
     196             : 
     197         801 : } // namespace vcl
     198             : 
     199             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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