lotuswordpro/source/filter/lwpobjstrm.hxx

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   2  *
   3  *  The Contents of this file are made available subject to the terms of
   4  *  either of the following licenses
   5  *
   6  *         - GNU Lesser General Public License Version 2.1
   7  *         - Sun Industry Standards Source License Version 1.1
   8  *
   9  *  Sun Microsystems Inc., October, 2000
  10  *
  11  *  GNU Lesser General Public License Version 2.1
  12  *  =============================================
  13  *  Copyright 2000 by Sun Microsystems, Inc.
  14  *  901 San Antonio Road, Palo Alto, CA 94303, USA
  15  *
  16  *  This library is free software; you can redistribute it and/or
  17  *  modify it under the terms of the GNU Lesser General Public
  18  *  License version 2.1, as published by the Free Software Foundation.
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  20  *  This library is distributed in the hope that it will be useful,
  21  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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  23  *  Lesser General Public License for more details.
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  25  *  You should have received a copy of the GNU Lesser General Public
  26  *  License along with this library; if not, write to the Free Software
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  29  *
  30  *
  31  *  Sun Industry Standards Source License Version 1.1
  32  *  =================================================
  33  *  The contents of this file are subject to the Sun Industry Standards
  34  *  Source License Version 1.1 (the "License"); You may not use this file
  35  *  except in compliance with the License. You may obtain a copy of the
  36  *  License at http://www.openoffice.org/license.html.
  37  *
  38  *  Software provided under this License is provided on an "AS IS" basis,
  39  *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
  40  *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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  44  *
  45  *  The Initial Developer of the Original Code is: IBM Corporation
  46  *
  47  *  Copyright: 2008 by IBM Corporation
  48  *
  49  *  All Rights Reserved.
  50  *
  51  *  Contributor(s): _______________________________________
  52  *
  53  *
  54  ************************************************************************/
  55 /*************************************************************************
  56  * @file
  57  *  object stream header file
  58  *  stream for one LwpObject body data
  59  ************************************************************************/
  60 /*************************************************************************
  61  * Change History
  62  Jan 2005                       Created
  63  ************************************************************************/
  64
  65 #ifndef _LWPOBJECTSTREAM_HXX
  66 #define _LWPOBJECTSTREAM_HXX
  67
  68 #include "lwpheader.hxx"
  69 #include "lwpsvstream.hxx"
  70 /**
  71  * @brief       stream class for LwpObject body data
  72  *              provide stream like interface to read object data
  73 */
  74 class LwpObjectStream
  75 {
  76 public:
  77         LwpObjectStream(LwpSvStream *pStrm, BOOL isCompressed, sal_uInt16 size);
  78         ~LwpObjectStream();
  79 private:
  80         sal_uInt8* m_pContentBuf;                       //The content buffer of the object
  81         sal_uInt8 m_SmallBuffer[100];           //To avoid frequent new
  82         enum
  83         {
  84                 IO_BUFFERSIZE = 0xFF00          //Refer to LWP, not sure if it is enough
  85         };
  86         sal_uInt16 m_nBufSize;                          //The total size of m_pContentBuf
  87         sal_uInt16 m_nReadPos;                  //The position of the quick read
  88         LwpSvStream* m_pStrm;
  89         BOOL m_bCompressed;
  90 public:
  91         sal_uInt16 QuickRead(void* buf, sal_uInt16 len);
  92         sal_uInt16 GetPos() { return m_nReadPos; }
  93         void SeekRel(sal_uInt16 pos);
  94         BOOL Seek( sal_uInt16 pos);
  95         void SkipExtra();
  96         sal_uInt16 CheckExtra();
  97
  98         //01/14/2005
  99         sal_Bool QuickReadBool();
 100         sal_uInt32 QuickReaduInt32();
 101         sal_uInt16 QuickReaduInt16();
 102         sal_uInt8 QuickReaduInt8();
 103         sal_Int32 QuickReadInt32();
 104         sal_Int16 QuickReadInt16();
 105         sal_Int8 QuickReadInt8();
 106         //end
 107
 108         OUString QuickReadStringPtr(void);
 109         //void QuickReadString(unsigned char *pString, sal_uInt16 len);
 110         void QuickReadStringWithMax(unsigned char * pString, sal_uInt16 MaxLen);
 111
 112 public:
 113         void ReadComplete();
 114         LwpSvStream *GetStream();
 115 private:
 116         void ReadStream();
 117         void Read2Buffer();
 118         sal_uInt8* AllocBuffer(sal_uInt16 size);
 119         sal_uInt16 DecompressBuffer(sal_uInt8* pDst, sal_uInt8* pSrc, sal_uInt16 Size);
 120         void ReleaseBuffer();
 121 };
 122
 123 inline LwpSvStream *LwpObjectStream::GetStream()
 124 {
 125         return m_pStrm;
 126 }
 127 #endif