svtools/source/svrtf/rtfout.cxx

   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 <tools/debug.hxx>
  21 #include <tools/stream.hxx>
  22 #include <tools/string.hxx>
  23 #include <rtl/string.hxx>
  24 #include <rtl/ustrbuf.hxx>
  25 #include <svtools/rtfkeywd.hxx>
  26 #include <svtools/rtfout.hxx>
  27
  28
  29 #if defined(UNX)
  30 const sal_Char RTFOutFuncs::sNewLine = '\012';
  31 #else
  32 const sal_Char RTFOutFuncs::sNewLine[] = "\015\012";
  33 #endif
  34
  35
  36 SvStream& RTFOutFuncs::Out_Char(SvStream& rStream, sal_Unicode c,
  37     int *pUCMode, rtl_TextEncoding eDestEnc, sal_Bool bWriteHelpFile)
  38 {
  39     const sal_Char* pStr = 0;
  40     switch (c)
  41     {
  42     case 0x1:
  43     case 0x2:
  44         // this are control character of our textattributes and will never be
  45         // written
  46         break;
  47     case 0xA0:
  48         rStream << "\\~";
  49         break;
  50     case 0xAD:
  51         rStream << "\\-";
  52         break;
  53     case 0x2011:
  54         rStream << "\\_";
  55         break;
  56     case '\n':
  57         pStr = OOO_STRING_SVTOOLS_RTF_LINE;
  58         break;
  59     case '\t':
  60         pStr = OOO_STRING_SVTOOLS_RTF_TAB;
  61         break;
  62     default:
  63         if(!bWriteHelpFile)
  64         {
  65             switch(c)
  66             {
  67                 case 149:
  68                     pStr = OOO_STRING_SVTOOLS_RTF_BULLET;
  69                     break;
  70                 case 150:
  71                     pStr = OOO_STRING_SVTOOLS_RTF_ENDASH;
  72                     break;
  73                 case 151:
  74                     pStr = OOO_STRING_SVTOOLS_RTF_EMDASH;
  75                     break;
  76                 case 145:
  77                     pStr = OOO_STRING_SVTOOLS_RTF_LQUOTE;
  78                     break;
  79                 case 146:
  80                     pStr = OOO_STRING_SVTOOLS_RTF_RQUOTE;
  81                     break;
  82                 case 147:
  83                     pStr = OOO_STRING_SVTOOLS_RTF_LDBLQUOTE;
  84                     break;
  85                 case 148:
  86                     pStr = OOO_STRING_SVTOOLS_RTF_RDBLQUOTE;
  87                     break;
  88             }
  89
  90             if (pStr)
  91                 break;
  92         }
  93
  94         switch (c)
  95         {
  96             case '\\':
  97             case '}':
  98             case '{':
  99                 rStream << '\\' << (sal_Char)c;
 100                 break;
 101             default:
 102                 if (c >= ' ' && c <= '~')
 103                     rStream << (sal_Char)c;
 104                 else
 105                 {
 106                     //If we can't convert to the dest encoding, or if
 107                     //its an uncommon multibyte sequence which most
 108                     //readers won't be able to handle correctly, then
 109                     //If we can't convert to the dest encoding, then
 110                     //export as unicode
 111                     OUString sBuf(&c, 1);
 112                     OString sConverted;
 113                     sal_uInt32 nFlags =
 114                         RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR |
 115                         RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR;
 116                     bool bWriteAsUnicode = !(sBuf.convertToString(&sConverted,
 117                                          eDestEnc, nFlags))
 118                                             || (RTL_TEXTENCODING_UTF8==eDestEnc); // #i43933# do not export UTF-8 chars in RTF;
 119                     if (bWriteAsUnicode)
 120                     {
 121                         sBuf.convertToString(&sConverted,
 122                             eDestEnc, OUSTRING_TO_OSTRING_CVTFLAGS);
 123                     }
 124                     const sal_Int32 nLen = sConverted.getLength();
 125
 126                     if (bWriteAsUnicode && pUCMode)
 127                     {
 128                         // then write as unicode - character
 129                         if (*pUCMode != nLen)
 130                         {
 131                             // #i47831# add an additional whitespace, so that
 132                             // "document whitespaces" are not ignored.;
 133                             rStream << "\\uc"
 134                                 << OString::valueOf(nLen).getStr() << " ";
 135                             *pUCMode = nLen;
 136                         }
 137                         rStream << "\\u"
 138                             << OString::valueOf(
 139                                 static_cast<sal_Int32>(c)).getStr();
 140                     }
 141
 142                     for (sal_Int32 nI = 0; nI < nLen; ++nI)
 143                     {
 144                         rStream << "\\'";
 145                         Out_Hex(rStream, sConverted.getStr()[nI], 2);
 146                     }
 147                 }
 148                 break;
 149         }
 150         break;
 151     }
 152
 153     if (pStr)
 154         rStream << pStr << ' ';
 155
 156     return rStream;
 157 }
 158
 159 SvStream& RTFOutFuncs::Out_String( SvStream& rStream, const String& rStr,
 160     rtl_TextEncoding eDestEnc, sal_Bool bWriteHelpFile)
 161 {
 162     int nUCMode = 1;
 163     for (xub_StrLen n = 0; n < rStr.Len(); ++n)
 164         Out_Char(rStream, rStr.GetChar(n), &nUCMode, eDestEnc, bWriteHelpFile);
 165     if (nUCMode != 1)
 166       rStream << "\\uc1"<< " "; // #i47831# add an additional whitespace, so that "document whitespaces" are not ignored.;
 167     return rStream;
 168 }
 169
 170 SvStream& RTFOutFuncs::Out_Hex( SvStream& rStream, sal_uLong nHex, sal_uInt8 nLen )
 171 {
 172     sal_Char aNToABuf[] = "0000000000000000";
 173
 174     DBG_ASSERT( nLen < sizeof(aNToABuf), "zu viele Stellen" );
 175     if( nLen >= sizeof(aNToABuf) )
 176         nLen = (sizeof(aNToABuf)-1);
 177
 178     // Pointer an das Bufferende setzen
 179     sal_Char* pStr = aNToABuf + (sizeof(aNToABuf)-1);
 180     for( sal_uInt8 n = 0; n < nLen; ++n )
 181     {
 182         *(--pStr) = (sal_Char)(nHex & 0xf ) + 48;
 183         if( *pStr > '9' )
 184             *pStr += 39;
 185         nHex >>= 4;
 186     }
 187     return rStream << pStr;
 188 }
 189
 190
 191
 192 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */