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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 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>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef OOX_OLE_VBAINPUTSTREAM_HXX
#define OOX_OLE_VBAINPUTSTREAM_HXX
#include <vector>
#include "oox/helper/binaryinputstream.hxx"
namespace oox {
namespace ole {
// ============================================================================
/** A non-seekable input stream that implements run-length decompression. */
class VbaInputStream : public BinaryInputStream
{
public:
explicit VbaInputStream( BinaryInputStream& rInStrm );
/** Reads nBytes bytes to the passed sequence.
@return Number of bytes really read. */
virtual sal_Int32 readData( StreamDataSequence& orData, sal_Int32 nBytes );
/** Reads nBytes bytes to the (existing) buffer opMem.
@return Number of bytes really read. */
virtual sal_Int32 readMemory( void* opMem, sal_Int32 nBytes );
/** Seeks the stream forward by the passed number of bytes. */
virtual void skip( sal_Int32 nBytes );
private:
/** If no data left in chunk buffer, reads the next chunk from stream. */
bool updateChunk();
private:
typedef ::std::vector< sal_uInt8 > ChunkBuffer;
BinaryInputStream& mrInStrm;
ChunkBuffer maChunk;
size_t mnChunkPos;
};
// ============================================================================
} // namespace ole
} // namespace oox
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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