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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
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * 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_sc.hxx"

#include <sal/config.h>
#include <stdio.h>
#include <sfx2/docfile.hxx>

#include "global.hxx"
#include "scerrors.hxx"
#include "docpool.hxx"
#include "patattr.hxx"
#include "filter.hxx"
#include "document.hxx"
#include "cell.hxx"
#include "biff.hxx"

ScBiffReader::ScBiffReader( SfxMedium & rMedium ) :
	mnId(0),
	mnLength(0),
	mnOffset(0)
{
	mpStream = rMedium.GetInStream();
	if( mpStream )
	{
        mpStream->SetBufferSize( 65535 );
		mpStream->SetStreamCharSet( RTL_TEXTENCODING_MS_1252 );
	}
}

ScBiffReader::~ScBiffReader()
{
	if( mpStream )
		mpStream->SetBufferSize( 0 );
}

bool ScBiffReader::nextRecord()
{
	if( !recordsLeft() )
		return false;

	if( IsEndOfFile() )
		return false;

	sal_uInt32 nPos = mpStream->Tell();
	if( nPos != mnOffset + mnLength )
		mpStream->Seek( mnOffset + mnLength );

	mnLength = mnId = 0;
	*mpStream >> mnId >> mnLength;

	mnOffset = mpStream->Tell();
#ifdef DEBUG
	fprintf( stderr, "Read record 0x%x length 0x%x at offset 0x%x\n",
        (unsigned)mnId, (unsigned)mnLength, (unsigned)mnOffset );

#if 1  // rather verbose
	int len = mnLength;
	while (len > 0) {
		int i, chunk = len < 16 ? len : 16;
		unsigned char data[16];
		mpStream->Read( data, chunk );

		for (i = 0; i < chunk; i++)
			fprintf( stderr, "%.2x ", data[i] );
		fprintf( stderr, "| " );
		for (i = 0; i < chunk; i++)
			fprintf( stderr, "%c", data[i] < 127 && data[i] > 30 ? data[i] : '.' );
		fprintf( stderr, "\n" );

		len -= chunk;
	}
	mpStream->Seek( mnOffset );
#endif
#endif
	return true;
}

