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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /tools/source/stream/vcompat.cxx
parentInitial commit. (diff)
downloadlibreoffice-cb75148ebd0135178ff46f89a30139c44f8d2040.tar.xz
libreoffice-cb75148ebd0135178ff46f89a30139c44f8d2040.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/source/stream/vcompat.cxx')
-rw-r--r--tools/source/stream/vcompat.cxx68
1 files changed, 68 insertions, 0 deletions
diff --git a/tools/source/stream/vcompat.cxx b/tools/source/stream/vcompat.cxx
new file mode 100644
index 000000000..bf85c0c9a
--- /dev/null
+++ b/tools/source/stream/vcompat.cxx
@@ -0,0 +1,68 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <tools/stream.hxx>
+#include <tools/vcompat.hxx>
+
+VersionCompatRead::VersionCompatRead(SvStream& rStm)
+ : mrRStm(rStm)
+ , mnCompatPos(0)
+ , mnTotalSize(0)
+ , mnVersion(1)
+{
+ if (mrRStm.GetError())
+ return;
+
+ mrRStm.ReadUInt16(mnVersion);
+ mrRStm.ReadUInt32(mnTotalSize);
+ mnCompatPos = mrRStm.Tell();
+}
+
+VersionCompatWrite::VersionCompatWrite(SvStream& rStm, sal_uInt16 nVersion)
+ : mrWStm(rStm)
+ , mnCompatPos(0)
+ , mnTotalSize(0)
+{
+ if (mrWStm.GetError())
+ return;
+
+ mrWStm.WriteUInt16(nVersion);
+ mnCompatPos = mrWStm.Tell();
+ mnTotalSize = mnCompatPos + 4;
+ mrWStm.SeekRel(4);
+}
+
+VersionCompatRead::~VersionCompatRead()
+{
+ const sal_uInt32 nReadSize = mrRStm.Tell() - mnCompatPos;
+
+ if (mnTotalSize > nReadSize)
+ mrRStm.SeekRel(mnTotalSize - nReadSize);
+}
+
+VersionCompatWrite::~VersionCompatWrite()
+{
+ const sal_uInt32 nEndPos = mrWStm.Tell();
+
+ mrWStm.Seek(mnCompatPos);
+ mrWStm.WriteUInt32(nEndPos - mnTotalSize);
+ mrWStm.Seek(nEndPos);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */