include/tools/vcompat.hxx

   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 #ifndef INCLUDED_TOOLS_VCOMPAT_HXX
  20 #define INCLUDED_TOOLS_VCOMPAT_HXX
  21
  22 #include <tools/toolsdllapi.h>
  23
  24 inline sal_uInt32 COMPAT_FORMAT(char char1, char char2, char char3, char char4)
  25 {
  26     return static_cast<sal_uInt32>(char1) | (static_cast<sal_uInt32>(char2) << 8)
  27            | (static_cast<sal_uInt32>(char3) << 16) | (static_cast<sal_uInt32>(char4) << 24);
  28 };
  29
  30 class SvStream;
  31
  32 class TOOLS_DLLPUBLIC VersionCompatRead
  33 {
  34     SvStream& mrRStm;
  35     sal_uInt32 mnCompatPos;
  36     sal_uInt32 mnTotalSize;
  37     sal_uInt16 mnVersion;
  38
  39     VersionCompatRead(const VersionCompatRead&) = delete;
  40     VersionCompatRead& operator=(const VersionCompatRead&) = delete;
  41
  42 public:
  43     VersionCompatRead(SvStream& rStm);
  44     ~VersionCompatRead();
  45
  46     sal_uInt16 GetVersion() const { return mnVersion; }
  47 };
  48
  49 class TOOLS_DLLPUBLIC VersionCompatWrite
  50 {
  51     SvStream& mrWStm;
  52     sal_uInt32 mnCompatPos;
  53     sal_uInt32 mnTotalSize;
  54
  55     VersionCompatWrite(const VersionCompatWrite&) = delete;
  56     VersionCompatWrite& operator=(const VersionCompatWrite&) = delete;
  57
  58 public:
  59     VersionCompatWrite(SvStream& rStm, sal_uInt16 nVersion = 1);
  60     ~VersionCompatWrite();
  61 };
  62
  63 #endif
  64
  65 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */