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 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * Copyright 2000, 2010 Oracle and/or its affiliates.
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
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 *
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 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sfx2.hxx"
#include <tools/stream.hxx>
#include <tools/cachestr.hxx>

#include <sot/storage.hxx>
#include <sot/formats.hxx>

#include <sfx2/mieclip.hxx>
#include <sfx2/sfxuno.hxx>

MSE40HTMLClipFormatObj::~MSE40HTMLClipFormatObj()
{
	delete pStrm;
}

SvStream* MSE40HTMLClipFormatObj::IsValid( SvStream& rStream )
{
	sal_Bool bRet = sal_False;
	if( pStrm )
		delete pStrm, pStrm = 0;

	ByteString sLine, sVersion;
	sal_uIntPtr nStt = 0, nEnd = 0;
	sal_uInt16 nIndex = 0;

	rStream.Seek(STREAM_SEEK_TO_BEGIN);
	rStream.ResetError();

	if( rStream.ReadLine( sLine ) &&
		sLine.GetToken( 0, ':', nIndex ) == "Version" )
	{
		sVersion = sLine.Copy( nIndex );
		while( rStream.ReadLine( sLine ) )
		{
			nIndex = 0;
			ByteString sTmp( sLine.GetToken( 0, ':', nIndex ) );
			if( sTmp == "StartHTML" )
				nStt = (sal_uIntPtr)(sLine.Erase( 0, nIndex ).ToInt32());
			else if( sTmp == "EndHTML" )
				nEnd = (sal_uIntPtr)(sLine.Erase( 0, nIndex ).ToInt32());
			else if( sTmp == "SourceURL" )
				sBaseURL = String(S2U(sLine.Erase( 0, nIndex )));

			if( nEnd && nStt &&
				( sBaseURL.Len() || rStream.Tell() >= nStt ))
			{
				bRet = sal_True;
				break;
			}
		}
	}

	if( bRet )
	{
		rStream.Seek( nStt );

		pStrm = new SvCacheStream( ( nEnd - nStt < 0x10000l
										? nEnd - nStt + 32
										: 0 ));
		*pStrm << rStream;
		pStrm->SetStreamSize( nEnd - nStt + 1L );
		pStrm->Seek( STREAM_SEEK_TO_BEGIN );
	}

	return pStrm;
}