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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.
*
************************************************************************/
/**
* hwpio.h
* (C) 1999 Mizi Research, All rights are reserved
*/
#ifndef _HIODEV_H_
#define _HIODEV_H_
#ifdef __GNUG__
#pragma interface
#endif
#include <stdio.h>
#include "hwplib.h"
/**
* @short Abstract IO class
*/
class DLLEXPORT HIODev
{
protected:
bool compressed;
virtual void init();
public:
HIODev();
virtual ~HIODev();
virtual bool open() = 0;
virtual void close() = 0;
virtual void flush() = 0;
virtual int state() const = 0;
/* gzip routine wrapper */
virtual bool setCompressed( bool ) = 0;
virtual int read1b() = 0;
virtual int read2b() = 0;
virtual long read4b() = 0;
virtual int readBlock( void *ptr, int size ) = 0;
virtual int skipBlock( int size ) = 0;
virtual int read1b( void *ptr, int nmemb );
virtual int read2b( void *ptr, int nmemb );
virtual int read4b( void *ptr, int nmemb );
};
struct gz_stream;
/* ġ */
/**
* This controls the HStream given by constructor
* @short Stream IO device
*/
class HStreamIODev : public HIODev
{
private:
/* zlib Ǯ ڷ */
gz_stream *_gzfp;
HStream& _stream;
public:
HStreamIODev(HStream& stream);
virtual ~HStreamIODev();
/**
* Check whether the stream is available
*/
virtual bool open();
/**
* Free stream object
*/
virtual void close();
/**
* If the stream is gzipped, flush the stream.
*/
virtual void flush();
/**
* Not implemented.
*/
virtual int state() const;
/**
* Set whether the stream is compressed or not
*/
virtual bool setCompressed( bool );
/**
* Read one byte from stream
*/
using HIODev::read1b;
virtual int read1b();
/**
* Read 2 bytes from stream
*/
using HIODev::read2b;
virtual int read2b();
/**
* Read 4 bytes from stream
*/
using HIODev::read4b;
virtual long read4b();
/**
* Read some bytes from stream to given pointer as amount of size
*/
virtual int readBlock( void *ptr, int size );
/**
* Move current pointer of stream as amount of size
*/
virtual int skipBlock( int size );
protected:
/**
* Initialize this object
*/
virtual void init();
};
/* ġ */
/**
* The HMemIODev class controls the Input/Output device.
* @short Memory IO device
*/
class HMemIODev : public HIODev
{
uchar *ptr;
int pos, length;
public:
HMemIODev(char *s, int len);
virtual ~HMemIODev();
virtual bool open();
virtual void close();
virtual void flush();
virtual int state() const;
/* gzip routine wrapper */
virtual bool setCompressed( bool );
using HIODev::read1b;
virtual int read1b();
using HIODev::read2b;
virtual int read2b();
using HIODev::read4b;
virtual long read4b();
virtual int readBlock( void *ptr, int size );
virtual int skipBlock( int size );
protected:
virtual void init();
};
#endif /* _HIODEV_H_*/
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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