sd/source/core/sdiocmpt.cxx

   1 /*************************************************************************
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: sdiocmpt.cxx,v $
  10  * $Revision: 1.6 $
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  12  * This file is part of OpenOffice.org.
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  16  * only, as published by the Free Software Foundation.
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  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
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  25  * version 3 along with OpenOffice.org.  If not, see
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  29  ************************************************************************/
  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_sd.hxx"
  33
  34
  35 #include <tools/debug.hxx>
  36
  37 #include "sdiocmpt.hxx"
  38
  39 //////////////////////////////////////////////////////////////////////////////
  40
  41 old_SdrDownCompat::old_SdrDownCompat(SvStream& rNewStream, UINT16 nNewMode)
  42 :       rStream(rNewStream),
  43     nSubRecSiz(0),
  44     nSubRecPos(0),
  45     nMode(nNewMode),
  46     bOpen(FALSE)
  47 {
  48     OpenSubRecord();
  49 }
  50
  51 old_SdrDownCompat::~old_SdrDownCompat()
  52 {
  53     if(bOpen)
  54         CloseSubRecord();
  55 }
  56
  57 void old_SdrDownCompat::Read()
  58 {
  59     rStream >> nSubRecSiz;
  60 }
  61
  62 void old_SdrDownCompat::Write()
  63 {
  64     rStream << nSubRecSiz;
  65 }
  66
  67 void old_SdrDownCompat::OpenSubRecord()
  68 {
  69     if(rStream.GetError())
  70         return;
  71
  72     nSubRecPos = rStream.Tell();
  73
  74     if(nMode == STREAM_READ)
  75     {
  76         Read();
  77     }
  78     else if(nMode == STREAM_WRITE)
  79     {
  80         Write();
  81     }
  82
  83     bOpen = TRUE;
  84 }
  85
  86 void old_SdrDownCompat::CloseSubRecord()
  87 {
  88     if(rStream.GetError())
  89         return;
  90
  91     UINT32 nAktPos(rStream.Tell());
  92
  93     if(nMode == STREAM_READ)
  94     {
  95         UINT32 nReadAnz(nAktPos - nSubRecPos);
  96         if(nReadAnz != nSubRecSiz)
  97         {
  98             rStream.Seek(nSubRecPos + nSubRecSiz);
  99         }
 100     }
 101     else if(nMode == STREAM_WRITE)
 102     {
 103         nSubRecSiz = nAktPos - nSubRecPos;
 104         rStream.Seek(nSubRecPos);
 105         Write();
 106         rStream.Seek(nAktPos);
 107     }
 108
 109     bOpen = FALSE;
 110 }
 111
 112 /*************************************************************************
 113 |*
 114 |* Konstruktor, schreibt bzw. liest Versionsnummer
 115 |*
 116 \************************************************************************/
 117
 118 SdIOCompat::SdIOCompat(SvStream& rNewStream, USHORT nNewMode, UINT16 nVer)
 119 :       old_SdrDownCompat(rNewStream, nNewMode), nVersion(nVer)
 120 {
 121     if (nNewMode == STREAM_WRITE)
 122     {
 123         DBG_ASSERT(nVer != SDIOCOMPAT_VERSIONDONTKNOW,
 124                    "kann unbekannte Version nicht schreiben");
 125         rNewStream << nVersion;
 126     }
 127     else if (nNewMode == STREAM_READ)
 128     {
 129         DBG_ASSERT(nVer == SDIOCOMPAT_VERSIONDONTKNOW,
 130                    "Lesen mit Angabe der Version ist Quatsch!");
 131         rNewStream >> nVersion;
 132     }
 133 }
 134
 135 SdIOCompat::~SdIOCompat()
 136 {
 137 }
 138
 139 // eof