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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 "rtl/string.h"
#include "rtl/string.h"
#include "stgole.hxx"
#include "sot/storinfo.hxx" // Read/WriteClipboardFormat()
#if defined(_MSC_VER) && (_MSC_VER>=1400)
#pragma warning(disable: 4342)
#endif
///////////////////////// class StgInternalStream ////////////////////////
StgInternalStream::StgInternalStream
( BaseStorage& rStg, const String& rName, sal_Bool bWr )
{
bIsWritable = sal_True;
sal_uInt16 nMode = bWr
? STREAM_WRITE | STREAM_SHARE_DENYALL
: STREAM_READ | STREAM_SHARE_DENYWRITE | STREAM_NOCREATE;
pStrm = rStg.OpenStream( rName, nMode );
// set the error code right here in the stream
SetError( rStg.GetError() );
SetBufferSize( 1024 );
}
StgInternalStream::~StgInternalStream()
{
delete pStrm;
}
sal_uLong StgInternalStream::GetData( void* pData, sal_uLong nSize )
{
if( pStrm )
{
nSize = pStrm->Read( pData, nSize );
SetError( pStrm->GetError() );
return nSize;
}
else
return 0;
}
sal_uLong StgInternalStream::PutData( const void* pData, sal_uLong nSize )
{
if( pStrm )
{
nSize = pStrm->Write( pData, nSize );
SetError( pStrm->GetError() );
return nSize;
}
else
return 0;
}
sal_uLong StgInternalStream::SeekPos( sal_uLong nPos )
{
return pStrm ? pStrm->Seek( nPos ) : 0;
}
void StgInternalStream::FlushData()
{
if( pStrm )
{
pStrm->Flush();
SetError( pStrm->GetError() );
}
}
void StgInternalStream::Commit()
{
Flush();
pStrm->Commit();
}
///////////////////////// class StgCompObjStream /////////////////////////
StgCompObjStream::StgCompObjStream( BaseStorage& rStg, sal_Bool bWr )
: StgInternalStream( rStg, rtl::OUString("\1CompObj"), bWr )
{
memset( &aClsId, 0, sizeof( ClsId ) );
nCbFormat = 0;
}
sal_Bool StgCompObjStream::Load()
{
memset( &aClsId, 0, sizeof( ClsId ) );
nCbFormat = 0;
aUserName.Erase();
if( GetError() != SVSTREAM_OK )
return sal_False;
Seek( 8L ); // skip the first part
sal_Int32 nMarker = 0;
*this >> nMarker;
if( nMarker == -1L )
{
*this >> aClsId;
sal_Int32 nLen1 = 0;
*this >> nLen1;
if ( nLen1 > 0 )
{
// higher bits are ignored
sal_uLong nStrLen = ::std::min( nLen1, (sal_Int32)0xFFFE );
sal_Char* p = new sal_Char[ nStrLen+1 ];
p[nStrLen] = 0;
if( Read( p, nStrLen ) == nStrLen )
{
//The encoding here is "ANSI", which is pretty useless seeing as
//the actual codepage used doesn't seem to be specified/stored
//anywhere :-(. Might as well pick 1252 and be consistent on
//all platforms and envs
//http://www.openoffice.org/nonav/issues/showattachment.cgi/68668/Orginal%20Document.doc
//for a good edge-case example
aUserName = nStrLen ? String( p, RTL_TEXTENCODING_MS_1252 ) : String();
nCbFormat = ReadClipboardFormat( *this );
}
else
SetError( SVSTREAM_GENERALERROR );
delete [] p;
}
}
return sal_Bool( GetError() == SVSTREAM_OK );
}
sal_Bool StgCompObjStream::Store()
{
if( GetError() != SVSTREAM_OK )
return sal_False;
Seek( 0L );
rtl::OString aAsciiUserName(rtl::OUStringToOString(aUserName, RTL_TEXTENCODING_MS_1252));
*this << (sal_Int16) 1 // Version?
<< (sal_Int16) -2 // 0xFFFE = Byte Order Indicator
<< (sal_Int32) 0x0A03 // Windows 3.10
<< (sal_Int32) -1L
<< aClsId // Class ID
<< (sal_Int32) (aAsciiUserName.getLength() + 1)
<< (const char *)aAsciiUserName.getStr()
<< (sal_uInt8) 0; // string terminator
WriteClipboardFormat( *this, nCbFormat );
*this << (sal_Int32) 0; // terminator
Commit();
return sal_Bool( GetError() == SVSTREAM_OK );
}
/////////////////////////// class StgOleStream ///////////////////////////
StgOleStream::StgOleStream( BaseStorage& rStg, sal_Bool bWr )
: StgInternalStream( rStg, rtl::OUString("\1Ole"), bWr )
{
nFlags = 0;
}
sal_Bool StgOleStream::Load()
{
nFlags = 0;
if( GetError() != SVSTREAM_OK )
return sal_False;
sal_Int32 version = 0;
Seek( 0L );
*this >> version >> nFlags;
return sal_Bool( GetError() == SVSTREAM_OK );
}
sal_Bool StgOleStream::Store()
{
if( GetError() != SVSTREAM_OK )
return sal_False;
Seek( 0L );
*this << (sal_Int32) 0x02000001 // OLE version, format
<< (sal_Int32) nFlags // Object flags
<< (sal_Int32) 0 // Update Options
<< (sal_Int32) 0 // reserved
<< (sal_Int32) 0; // Moniker 1
Commit();
return sal_Bool( GetError() == SVSTREAM_OK );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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