fpicker/source/win32/WinImplHelper.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 "WinImplHelper.hxx"
  21
  22 #include <vector>
  23 #include <osl/diagnose.h>
  24 #include <rtl/ustrbuf.hxx>
  25 #include <com/sun/star/uno/Sequence.hxx>
  26
  27 using ::com::sun::star::lang::IllegalArgumentException;
  28 using ::com::sun::star::uno::Reference;
  29 using ::com::sun::star::uno::XInterface;
  30 using ::com::sun::star::uno::Any;
  31 using ::com::sun::star::uno::Sequence;
  32
  33 const sal_Unicode   TILDE_SIGN = L'~';
  34 const sal_Unicode   AMPERSAND_SIGN = L'&';
  35
  36 // OS NAME          Platform                    Major   Minor
  37
  38 // Windows NT 3.51  VER_PLATFORM_WIN32_NT       3       51
  39 // Windows NT 4.0   VER_PLATFORM_WIN32_NT       4       0
  40 // Windows 2000     VER_PLATFORM_WIN32_NT       5       0
  41 // Windows XP       VER_PLATFORM_WIN32_NT       5       1
  42 // Windows Vista    VER_PLATFORM_WIN32_NT       6       0
  43 // Windows 7        VER_PLATFORM_WIN32_NT       6       1
  44 // Windows 95       VER_PLATFORM_WIN32_WINDOWS  4       0
  45 // Windows 98       VER_PLATFORM_WIN32_WINDOWS  4       10
  46 // Windows ME       VER_PLATFORM_WIN32_WINDOWS  4       90
  47
  48
  49 static void Replace( const OUString& aLabel, sal_Unicode OldChar, sal_Unicode NewChar, OUStringBuffer& aBuffer )
  50 {
  51     OSL_ASSERT( aLabel.getLength( ) );
  52     OSL_ASSERT( aBuffer.getCapacity( ) >= (aLabel.getLength( )) );
  53
  54     sal_Int32 i = 0;
  55     const sal_Unicode* pCurrent  = aLabel.getStr( );
  56     const sal_Unicode* pNext     = aLabel.getStr( ) + 1;
  57     const sal_Unicode* pEnd      = aLabel.getStr( ) + aLabel.getLength( );
  58
  59     while( pCurrent < pEnd )
  60     {
  61         OSL_ASSERT( pNext <= pEnd );
  62         OSL_ASSERT( (i >= 0) && (i < aBuffer.getCapacity( )) );
  63
  64         if ( OldChar == *pCurrent )
  65         {
  66             if ( OldChar == *pNext )
  67             {
  68                 // two OldChars in line will
  69                 // be replaced by one
  70                 // e.g. ~~ -> ~
  71                 aBuffer.insert( i, *pCurrent );
  72
  73                 // skip the next one
  74                 pCurrent++;
  75                 pNext++;
  76             }
  77             else
  78             {
  79                 // one OldChar will be replace
  80                 // by NexChar
  81                 aBuffer.insert( i, NewChar );
  82             }
  83         }
  84         else if ( *pCurrent == NewChar )
  85         {
  86             // a NewChar will be replaced by
  87              // two NewChars
  88              // e.g. & -> &&
  89             aBuffer.insert( i++, *pCurrent );
  90             aBuffer.insert( i, *pCurrent );
  91         }
  92         else
  93         {
  94             aBuffer.insert( i, *pCurrent );
  95         }
  96
  97         pCurrent++;
  98         pNext++;
  99         i++;
 100     }
 101 }
 102
 103 // converts a soffice label to a windows label
 104 // the following rules for character replacements
 105 // will be done:
 106 // '~'  -> '&'
 107 // '~~' -> '~'
 108 // '&'  -> '&&'
 109
 110 OUString SOfficeToWindowsLabel( const OUString& aSOLabel )
 111 {
 112     OUString aWinLabel = aSOLabel;
 113
 114     if ( (aWinLabel.indexOf( TILDE_SIGN ) > -1) || (aWinLabel.indexOf( AMPERSAND_SIGN ) > -1) )
 115     {
 116         sal_Int32 nStrLen = aWinLabel.getLength( );
 117
 118         // in the worst case the new string is
 119         // doubled in length, maybe some waste
 120         // of memory but how long is a label
 121         // normally(?)
 122         OUStringBuffer aBuffer( nStrLen * 2 );
 123
 124         Replace( aWinLabel, TILDE_SIGN, AMPERSAND_SIGN, aBuffer );
 125
 126         aWinLabel = aBuffer.makeStringAndClear( );
 127     }
 128
 129     return aWinLabel;
 130 }
 131
 132 // converts a windows label to a soffice label
 133 // the following rules for character replacements
 134 // will be done:
 135 // '&'  -> '~'
 136 // '&&' -> '&'
 137 // '~'  -> '~~'
 138
 139 OUString WindowsToSOfficeLabel( const OUString& aWinLabel )
 140 {
 141     OUString aSOLabel = aWinLabel;
 142
 143     if ( (aSOLabel.indexOf( TILDE_SIGN ) > -1) || (aSOLabel.indexOf( AMPERSAND_SIGN ) > -1) )
 144     {
 145         sal_Int32 nStrLen = aSOLabel.getLength( );
 146
 147         // in the worst case the new string is
 148         // doubled in length, maybe some waste
 149         // of memory but how long is a label
 150         // normally(?)
 151         OUStringBuffer aBuffer( nStrLen * 2 );
 152
 153         Replace( aSOLabel, AMPERSAND_SIGN, TILDE_SIGN, aBuffer );
 154
 155         aSOLabel = aBuffer.makeStringAndClear( );
 156     }
 157
 158     return aSOLabel;
 159 }
 160
 161 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */