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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 .
*/
/**
* hwpio.h
* (C) 1999 Mizi Research, All rights are reserved
*/
#ifndef INCLUDED_HWPFILTER_SOURCE_HIODEV_H
#define INCLUDED_HWPFILTER_SOURCE_HIODEV_H
#include <sal/config.h>
#include <stdio.h>
#include <sal/types.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 bool read1b(unsigned char &out) = 0;
virtual bool read1b(char &out) = 0;
virtual bool read2b(unsigned short &out) = 0;
virtual bool read4b(unsigned int &out) = 0;
virtual bool read4b(int &out) = 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;
/* 파일 입출력 장치 */
/**
* This controls the HStream given by constructor
* @short Stream IO device
*/
class HStreamIODev : public HIODev
{
private:
/* zlib으로 압축을 풀기 위한 자료 구조 */
gz_stream *_gzfp;
HStream& _stream;
public:
HStreamIODev(HStream& stream);
virtual ~HStreamIODev();
/**
* Check whether the stream is available
*/
virtual bool open() SAL_OVERRIDE;
/**
* Free stream object
*/
virtual void close() SAL_OVERRIDE;
/**
* If the stream is gzipped, flush the stream.
*/
virtual void flush() SAL_OVERRIDE;
/**
* Not implemented.
*/
virtual int state() const SAL_OVERRIDE;
/**
* Set whether the stream is compressed or not
*/
virtual bool setCompressed( bool ) SAL_OVERRIDE;
/**
* Read one byte from stream
*/
using HIODev::read1b;
virtual bool read1b(unsigned char &out) SAL_OVERRIDE;
virtual bool read1b(char &out) SAL_OVERRIDE;
/**
* Read 2 bytes from stream
*/
using HIODev::read2b;
virtual bool read2b(unsigned short &out) SAL_OVERRIDE;
/**
* Read 4 bytes from stream
*/
using HIODev::read4b;
virtual bool read4b(unsigned int &out) SAL_OVERRIDE;
virtual bool read4b(int &out) SAL_OVERRIDE;
/**
* Read some bytes from stream to given pointer as amount of size
*/
virtual int readBlock( void *ptr, int size ) SAL_OVERRIDE;
/**
* Move current pointer of stream as amount of size
*/
virtual int skipBlock( int size ) SAL_OVERRIDE;
protected:
/**
* Initialize this object
*/
virtual void init() SAL_OVERRIDE;
};
/* 메모리 입출력 장치 */
/**
* 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() SAL_OVERRIDE;
virtual void close() SAL_OVERRIDE;
virtual void flush() SAL_OVERRIDE;
virtual int state() const SAL_OVERRIDE;
/* gzip routine wrapper */
virtual bool setCompressed( bool ) SAL_OVERRIDE;
using HIODev::read1b;
virtual bool read1b(unsigned char &out) SAL_OVERRIDE;
virtual bool read1b(char &out) SAL_OVERRIDE;
using HIODev::read2b;
virtual bool read2b(unsigned short &out) SAL_OVERRIDE;
using HIODev::read4b;
virtual bool read4b(unsigned int &out) SAL_OVERRIDE;
virtual bool read4b(int &out) SAL_OVERRIDE;
virtual int readBlock( void *ptr, int size ) SAL_OVERRIDE;
virtual int skipBlock( int size ) SAL_OVERRIDE;
protected:
virtual void init() SAL_OVERRIDE;
};
#endif // INCLUDED_HWPFILTER_SOURCE_HIODEV_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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