hwpfilter/source/hiodev.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 /**
  21  * hwpio.h
  22  * (C) 1999 Mizi Research, All rights are reserved
  23  */
  24
  25 #ifndef INCLUDED_HWPFILTER_SOURCE_HIODEV_H
  26 #define INCLUDED_HWPFILTER_SOURCE_HIODEV_H
  27
  28 #include <sal/config.h>
  29
  30 #include <stdio.h>
  31
  32 #include <boost/scoped_ptr.hpp>
  33 #include <sal/types.h>
  34
  35 #include "hwplib.h"
  36 /**
  37  * @short Abstract IO class
  38  */
  39 class DLLEXPORT HIODev
  40 {
  41     protected:
  42         bool compressed;
  43         virtual void init();
  44     public:
  45         HIODev();
  46         virtual ~HIODev();
  47
  48         virtual bool open() = 0;
  49         virtual void close() = 0;
  50         virtual void flush() = 0;
  51         virtual int  state() const = 0;
  52 /* gzip routine wrapper */
  53         virtual bool setCompressed( bool ) = 0;
  54
  55         virtual bool read1b(unsigned char &out) = 0;
  56         virtual bool read1b(char &out) = 0;
  57         virtual bool read2b(unsigned short &out) = 0;
  58         virtual bool read4b(unsigned int &out) = 0;
  59         virtual bool read4b(int &out) = 0;
  60         virtual int readBlock( void *ptr, int size ) = 0;
  61         virtual int skipBlock( int size ) = 0;
  62
  63         int read1b( void *ptr, int nmemb );
  64         int read2b( void *ptr, int nmemb );
  65         int read4b( void *ptr, int nmemb );
  66 };
  67
  68 struct gz_stream;
  69
  70 /* 파일 입출력 장치 */
  71
  72 /**
  73  * This controls the HStream given by constructor
  74  * @short Stream IO device
  75  */
  76 class HStreamIODev : public HIODev
  77 {
  78     private:
  79 /* zlib으로 압축을 풀기 위한 자료 구조 */
  80         boost::scoped_ptr<HStream> _stream;
  81         gz_stream *_gzfp;
  82     public:
  83         HStreamIODev(HStream* stream);
  84         virtual ~HStreamIODev();
  85 /**
  86  * Check whether the stream is available
  87  */
  88         virtual bool open() SAL_OVERRIDE;
  89 /**
  90  * Free stream object
  91  */
  92         virtual void close() SAL_OVERRIDE;
  93 /**
  94  * If the stream is gzipped, flush the stream.
  95  */
  96         virtual void flush() SAL_OVERRIDE;
  97 /**
  98  * Not implemented.
  99  */
 100         virtual int  state() const SAL_OVERRIDE;
 101 /**
 102  * Set whether the stream is compressed or not
 103  */
 104         virtual bool setCompressed( bool ) SAL_OVERRIDE;
 105 /**
 106  * Read one byte from stream
 107  */
 108         using HIODev::read1b;
 109         virtual bool read1b(unsigned char &out) SAL_OVERRIDE;
 110         virtual bool read1b(char &out) SAL_OVERRIDE;
 111 /**
 112  * Read 2 bytes from stream
 113  */
 114         using HIODev::read2b;
 115         virtual bool read2b(unsigned short &out) SAL_OVERRIDE;
 116 /**
 117  * Read 4 bytes from stream
 118  */
 119         using HIODev::read4b;
 120         virtual bool read4b(unsigned int &out) SAL_OVERRIDE;
 121         virtual bool read4b(int &out) SAL_OVERRIDE;
 122 /**
 123  * Read some bytes from stream to given pointer as amount of size
 124  */
 125         virtual int readBlock( void *ptr, int size ) SAL_OVERRIDE;
 126 /**
 127  * Move current pointer of stream as amount of size
 128  */
 129         virtual int skipBlock( int size ) SAL_OVERRIDE;
 130     protected:
 131 /**
 132  * Initialize this object
 133  */
 134         virtual void init() SAL_OVERRIDE;
 135 };
 136
 137 /* 메모리 입출력 장치 */
 138 /**
 139  * The HMemIODev class controls the Input/Output device.
 140  * @short Memory IO device
 141  */
 142 class HMemIODev : public HIODev
 143 {
 144     uchar *ptr;
 145     int pos, length;
 146     public:
 147         HMemIODev(char *s, int len);
 148         virtual ~HMemIODev();
 149
 150         virtual bool open() SAL_OVERRIDE;
 151         virtual void close() SAL_OVERRIDE;
 152         virtual void flush() SAL_OVERRIDE;
 153         virtual int  state() const SAL_OVERRIDE;
 154 /* gzip routine wrapper */
 155         virtual bool setCompressed( bool ) SAL_OVERRIDE;
 156         using HIODev::read1b;
 157         virtual bool read1b(unsigned char &out) SAL_OVERRIDE;
 158         virtual bool read1b(char &out) SAL_OVERRIDE;
 159         using HIODev::read2b;
 160         virtual bool read2b(unsigned short &out) SAL_OVERRIDE;
 161         using HIODev::read4b;
 162         virtual bool read4b(unsigned int &out) SAL_OVERRIDE;
 163         virtual bool read4b(int &out) SAL_OVERRIDE;
 164         virtual int readBlock( void *ptr, int size ) SAL_OVERRIDE;
 165         virtual int skipBlock( int size ) SAL_OVERRIDE;
 166     protected:
 167         virtual void init() SAL_OVERRIDE;
 168 };
 169 #endif // INCLUDED_HWPFILTER_SOURCE_HIODEV_H
 170
 171 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */