lotuswordpro/source/filter/lwpobjstrm.hxx

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   7  *         - GNU Lesser General Public License Version 2.1
   8  *         - Sun Industry Standards Source License Version 1.1
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  10  *  Sun Microsystems Inc., October, 2000
  11  *
  12  *  GNU Lesser General Public License Version 2.1
  13  *  =============================================
  14  *  Copyright 2000 by Sun Microsystems, Inc.
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  17  *  This library is free software; you can redistribute it and/or
  18  *  modify it under the terms of the GNU Lesser General Public
  19  *  License version 2.1, as published by the Free Software Foundation.
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  31  *
  32  *  Sun Industry Standards Source License Version 1.1
  33  *  =================================================
  34  *  The contents of this file are subject to the Sun Industry Standards
  35  *  Source License Version 1.1 (the "License"); You may not use this file
  36  *  except in compliance with the License. You may obtain a copy of the
  37  *  License at http://www.openoffice.org/license.html.
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  39  *  Software provided under this License is provided on an "AS IS" basis,
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  45  *
  46  *  The Initial Developer of the Original Code is: IBM Corporation
  47  *
  48  *  Copyright: 2008 by IBM Corporation
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  50  *  All Rights Reserved.
  51  *
  52  *  Contributor(s): _______________________________________
  53  *
  54  *
  55  ************************************************************************/
  56 /*************************************************************************
  57  * @file
  58  *  object stream header file
  59  *  stream for one LwpObject body data
  60  ************************************************************************/
  61 /*************************************************************************
  62  * Change History
  63  Jan 2005           Created
  64  ************************************************************************/
  65
  66 #ifndef INCLUDED_LOTUSWORDPRO_SOURCE_FILTER_LWPOBJSTRM_HXX
  67 #define INCLUDED_LOTUSWORDPRO_SOURCE_FILTER_LWPOBJSTRM_HXX
  68
  69 #include "lwpheader.hxx"
  70 #include "lwpsvstream.hxx"
  71 /**
  72  * @brief   stream class for LwpObject body data
  73  *          provide stream like interface to read object data
  74 */
  75 class LwpObjectStream
  76 {
  77 public:
  78     LwpObjectStream(LwpSvStream *pStrm, bool isCompressed, sal_uInt16 size);
  79     ~LwpObjectStream();
  80 private:
  81     sal_uInt8* m_pContentBuf;           //The content buffer of the object
  82     sal_uInt8 m_SmallBuffer[100];       //To avoid frequent new
  83     enum
  84     {
  85         IO_BUFFERSIZE = 0xFF00      //Refer to LWP, not sure if it is enough
  86     };
  87     sal_uInt16 m_nBufSize;              //The total size of m_pContentBuf
  88     sal_uInt16 m_nReadPos;          //The position of the quick read
  89     LwpSvStream* m_pStrm;
  90     bool m_bCompressed;
  91 public:
  92     sal_uInt16 QuickRead(void* buf, sal_uInt16 len);
  93     sal_uInt16 GetPos() { return m_nReadPos; }
  94     void SeekRel(sal_uInt16 pos);
  95     bool Seek( sal_uInt16 pos);
  96     void SkipExtra();
  97     sal_uInt16 CheckExtra();
  98
  99     bool QuickReadBool(bool *pFailure=NULL);
 100     sal_uInt32 QuickReaduInt32(bool *pFailure=NULL);
 101     sal_uInt16 QuickReaduInt16(bool *pFailure=NULL);
 102     sal_uInt8 QuickReaduInt8(bool *pFailure=NULL);
 103     sal_Int32 QuickReadInt32(bool *pFailure=NULL);
 104     sal_Int16 QuickReadInt16(bool *pFailure=NULL);
 105     double QuickReadDouble(bool *pFailure=NULL);
 106
 107     OUString QuickReadStringPtr();
 108     void QuickReadStringWithMax(unsigned char * pString, sal_uInt16 MaxLen);
 109
 110 public:
 111     void ReadComplete();
 112     LwpSvStream *GetStream();
 113 private:
 114     void ReadStream();
 115     void Read2Buffer();
 116     sal_uInt8* AllocBuffer(sal_uInt16 size);
 117     static sal_uInt16 DecompressBuffer(sal_uInt8* pDst, sal_uInt8* pSrc, sal_uInt16 Size);
 118     void ReleaseBuffer();
 119 };
 120
 121 inline LwpSvStream *LwpObjectStream::GetStream()
 122 {
 123     return m_pStrm;
 124 }
 125 #endif
 126
 127 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */