lotuswordpro/inc/lwpobjstrm.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  *  The Contents of this file are made available subject to the terms of
   5  *  either of the following licenses
   6  *
   7  *         - GNU Lesser General Public License Version 2.1
   8  *         - Sun Industry Standards Source License Version 1.1
   9  *
  10  *  Sun Microsystems Inc., October, 2000
  11  *
  12  *  GNU Lesser General Public License Version 2.1
  13  *  =============================================
  14  *  Copyright 2000 by Sun Microsystems, Inc.
  15  *  901 San Antonio Road, Palo Alto, CA 94303, USA
  16  *
  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.
  20  *
  21  *  This library is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  24  *  Lesser General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU Lesser General Public
  27  *  License along with this library; if not, write to the Free Software
  28  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  29  *  MA  02111-1307  USA
  30  *
  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.
  38  *
  39  *  Software provided under this License is provided on an "AS IS" basis,
  40  *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
  41  *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
  42  *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
  43  *  See the License for the specific provisions governing your rights and
  44  *  obligations concerning the Software.
  45  *
  46  *  The Initial Developer of the Original Code is: IBM Corporation
  47  *
  48  *  Copyright: 2008 by IBM Corporation
  49  *
  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 #ifndef INCLUDED_LOTUSWORDPRO_INC_LWPOBJSTRM_HXX
  63 #define INCLUDED_LOTUSWORDPRO_INC_LWPOBJSTRM_HXX
  64
  65 #include "lwpheader.hxx"
  66 #include "lwpsvstream.hxx"
  67 /**
  68  * @brief   stream class for LwpObject body data
  69  *          provide stream like interface to read object data
  70 */
  71 class LwpObjectStream
  72 {
  73 public:
  74     LwpObjectStream(LwpSvStream *pStrm, bool isCompressed, sal_uInt16 size);
  75     ~LwpObjectStream();
  76 private:
  77     sal_uInt8* m_pContentBuf;           //The content buffer of the object
  78     sal_uInt8 m_SmallBuffer[100];       //To avoid frequent new
  79     std::vector<sal_uInt8> m_BigBuffer; //otherwise use this
  80     enum
  81     {
  82         IO_BUFFERSIZE = 0xFF00      //Refer to LWP, not sure if it is enough
  83     };
  84     sal_uInt16 m_nBufSize;          //The total size of m_pContentBuf
  85     sal_uInt16 m_nReadPos;          //The position of the quick read
  86     LwpSvStream* m_pStrm;
  87     bool m_bCompressed;
  88 public:
  89     sal_uInt16 remainingSize() const;
  90     sal_uInt16 QuickRead(void* buf, sal_uInt16 len);
  91     sal_uInt16 GetPos() { return m_nReadPos; }
  92     void SeekRel(sal_uInt16 pos);
  93     void Seek( sal_uInt16 pos);
  94     void SkipExtra();
  95     sal_uInt16 CheckExtra();
  96
  97     bool QuickReadBool();
  98     sal_uInt32 QuickReaduInt32(bool *pFailure=nullptr);
  99     sal_uInt16 QuickReaduInt16(bool *pFailure=nullptr);
 100     sal_uInt8 QuickReaduInt8(bool *pFailure=nullptr);
 101     sal_Int32 QuickReadInt32();
 102     sal_Int16 QuickReadInt16();
 103     double QuickReadDouble();
 104
 105     OUString QuickReadStringPtr();
 106
 107     void ReadComplete();
 108     LwpSvStream *GetStream();
 109 private:
 110     void Read2Buffer();
 111     sal_uInt8* AllocBuffer(sal_uInt16 size);
 112     static sal_uInt16 DecompressBuffer(sal_uInt8* pDst, sal_uInt8* pSrc, sal_uInt16 Size);
 113     void ReleaseBuffer();
 114 };
 115
 116 inline LwpSvStream *LwpObjectStream::GetStream()
 117 {
 118     return m_pStrm;
 119 }
 120 #endif
 121
 122 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */