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/*************************************************************************
*
* $RCSfile: TxtCnvtHlp.cxx,v $
*
* $Revision: 1.1 $
*
* last change: $Author: tra $ $Date: 2001-02-27 07:54:52 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
//------------------------------------------------------------------------
// includes
//------------------------------------------------------------------------
#ifndef _OSL_DIAGNOSE_H_
#include <osl/diagnose.h>
#endif
#ifndef _TXTCNVTHLP_HXX_
#include "TxtCnvtHlp.hxx"
#endif
#ifndef _DTRANSHELPER_HXX_
#include "DTransHelper.hxx"
#endif
#ifndef _IMPLHELPER_HXX_
#include "..\misc\ImplHelper.hxx"
#endif
using namespace ::com::sun::star::datatransfer;
using namespace ::com::sun::star::uno;
//------------------------------------------------------------------
// assuming a '\0' terminated string if no length specified
//------------------------------------------------------------------
inline
int CalcBuffSizeForTextConversion( LPCSTR lpMultiByteString, int nLen = -1 )
{
return ( MultiByteToWideChar( CP_ACP,
0,
lpMultiByteString,
nLen,
NULL,
0 ) * sizeof( sal_Unicode ) );
}
//------------------------------------------------------------------
// assuming a '\0' terminated string if no length specified
//------------------------------------------------------------------
inline
int CalcBuffSizeForTextConversion( LPCWSTR lpWideCharString, int nLen = -1 )
{
return WideCharToMultiByte( CP_ACP,
0,
lpWideCharString,
nLen,
NULL,
0,
NULL,
NULL );
}
//------------------------------------------------------------------
// 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,
CStgTransferHelper& refDTransHelper,
BOOL bEnsureTrailingZero )
{
OSL_ASSERT( IsValidCodePage( cp_src ) );
OSL_ASSERT( NULL != lpMultiByteString );
// calculate the required buff size
int reqSize = CalcBuffSizeForTextConversion( lpMultiByteString );
if ( bEnsureTrailingZero )
reqSize += sizeof( sal_Unicode );
// initialize the data-transfer helper
refDTransHelper.init( reqSize );
// setup a global memory pointer
CRawHGlobalPtr ptrHGlob( refDTransHelper );
// do the converssion an return
return MultiByteToWideChar( cp_src,
0,
lpMultiByteString,
-1,
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,
CStgTransferHelper& refDTransHelper,
BOOL bEnsureTrailingZero )
{
OSL_ASSERT( IsValidCodePage( cp_dest ) );
OSL_ASSERT( NULL != lpWideCharString );
// calculate the required buff size
int reqSize = CalcBuffSizeForTextConversion( lpWideCharString );
if ( bEnsureTrailingZero )
reqSize += sizeof( sal_Int8 );
// initialize the data-transfer helper
refDTransHelper.init( reqSize );
// setup a global memory pointer
CRawHGlobalPtr ptrHGlob( refDTransHelper );
// do the converssion an return
return WideCharToMultiByte( cp_dest,
0,
lpWideCharString,
-1,
static_cast< LPSTR >( ptrHGlob.GetMemPtr( ) ),
ptrHGlob.MemSize( ),
NULL,
NULL );
}
//------------------------------------------------------------------
// iterates through a sequence of dataflavors in order to find
// the first non unicode character set
//------------------------------------------------------------------
/*
BOOL FindFirstTextDataFlavor( const Sequence< DataFlavor >& dflvList, DataFlavor& aTxtDFlv )
{
sal_Int32 nDFlv = dflvList.getLength( );
sal_Bool bRet = sal_False;
for ( sal_Int32 i = 0; i < nDFlv; ++i )
{
if ( MimeIsTextPlainAnyCharset( dflvList[i].MimeType ) )
{
aTxtDFlv = dflvList[i];
bRet = sal_True;
break;
}
}
return bRet;
}
//------------------------------------------------------------------
// given a list of dataflavors this function searches for the
// best dataflavor used to be converted into the destination
// dataflavor
//------------------------------------------------------------------
BOOL FindBestDataFlavorForTextConversion( const DataFlavor& destDFlv,
const Sequence< DataFlavor >& suppDFlv,
DataFlavor& bestDFlv )
{
return FindFirstTextDataFlavor( suppDFlv, bestDFlv );
}
*/
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