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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include <osl/diagnose.h>
#include "TxtCnvtHlp.hxx"
#include "DTransHelper.hxx"
#include "../misc/ImplHelper.hxx"
using namespace ::com::sun::star::datatransfer;
using namespace ::com::sun::star::uno;
// assuming a '\0' terminated string if no length specified
static int CalcBuffSizeForTextConversion( UINT code_page, LPCSTR lpMultiByteString, int nLen = -1 )
{
return ( MultiByteToWideChar( code_page,
0,
lpMultiByteString,
nLen,
nullptr,
0 ) * sizeof( sal_Unicode ) );
}
// assuming a '\0' terminated string if no length specified
static int CalcBuffSizeForTextConversion( UINT code_page, LPCWSTR lpWideCharString, int nLen = -1 )
{
return WideCharToMultiByte( code_page,
0,
lpWideCharString,
nLen,
nullptr,
0,
nullptr,
nullptr );
}
// converts text in one code page into unicode text
// automatically calculates the necessary buffer size and allocates
// the buffer
int MultiByteToWideCharEx( UINT cp_src,
LPCSTR lpMultiByteString,
sal_uInt32 lenStr,
CStgTransferHelper& refDTransHelper,
BOOL bEnsureTrailingZero )
{
OSL_ASSERT( IsValidCodePage( cp_src ) );
OSL_ASSERT( nullptr != lpMultiByteString );
// calculate the required buff size
int reqSize = CalcBuffSizeForTextConversion( cp_src, lpMultiByteString, lenStr );
if ( bEnsureTrailingZero )
reqSize += sizeof( sal_Unicode );
// initialize the data-transfer helper
refDTransHelper.init( reqSize );
// setup a global memory pointer
CRawHGlobalPtr ptrHGlob( refDTransHelper );
// do the conversion and return
return MultiByteToWideChar( cp_src,
0,
lpMultiByteString,
lenStr,
static_cast< LPWSTR >( ptrHGlob.GetMemPtr( ) ),
ptrHGlob.MemSize( ) );
}
// converts unicode text into text of the specified code page
// automatically calculates the necessary buffer size and allocates
// the buffer
int WideCharToMultiByteEx( UINT cp_dest,
LPCWSTR lpWideCharString,
sal_uInt32 lenStr,
CStgTransferHelper& refDTransHelper,
BOOL bEnsureTrailingZero )
{
OSL_ASSERT( IsValidCodePage( cp_dest ) );
OSL_ASSERT( nullptr != lpWideCharString );
// calculate the required buff size
int reqSize = CalcBuffSizeForTextConversion( cp_dest, lpWideCharString, lenStr );
if ( bEnsureTrailingZero )
reqSize += sizeof( sal_Int8 );
// initialize the data-transfer helper
refDTransHelper.init( reqSize );
// setup a global memory pointer
CRawHGlobalPtr ptrHGlob( refDTransHelper );
// do the conversion and return
return WideCharToMultiByte( cp_dest,
0,
lpWideCharString,
lenStr,
static_cast< LPSTR >( ptrHGlob.GetMemPtr( ) ),
ptrHGlob.MemSize( ),
nullptr,
nullptr );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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