1 files changed, 80 insertions, 0 deletions
diff --git a/tools/source/stream/vcompat.cxx b/tools/source/stream/vcompat.cxx
new file mode 100644
index 000000000000..8430eb17659b
--- /dev/null
+++ b/tools/source/stream/vcompat.cxx
@@ -0,0 +1,80 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_tools.hxx"
+
+#define _VCOMPAT_CXX
+#include <tools/stream.hxx>
+#include <tools/vcompat.hxx>
+
+// -----------------
+// - VersionCompat -
+// -----------------
+
+VersionCompat::VersionCompat( SvStream& rStm, USHORT nStreamMode, USHORT nVersion ) :
+            mpRWStm     ( &rStm ),
+            mnStmMode   ( nStreamMode ),
+            mnVersion   ( nVersion )
+{
+    if( !mpRWStm->GetError() )
+    {
+        if( STREAM_WRITE == mnStmMode )
+        {
+            *mpRWStm << mnVersion;
+            mnTotalSize = ( mnCompatPos = mpRWStm->Tell() ) + 4UL;
+            mpRWStm->SeekRel( 4L );
+        }
+        else
+        {
+            *mpRWStm >> mnVersion;
+            *mpRWStm >> mnTotalSize;
+            mnCompatPos = mpRWStm->Tell();
+        }
+    }
+}
+
+// ------------------------------------------------------------------------
+
+VersionCompat::~VersionCompat()
+{
+    if( STREAM_WRITE == mnStmMode )
+    {
+        const UINT32 nEndPos = mpRWStm->Tell();
+
+        mpRWStm->Seek( mnCompatPos );
+        *mpRWStm << ( nEndPos - mnTotalSize );
+        mpRWStm->Seek( nEndPos );
+    }
+    else
+    {
+        const UINT32 nReadSize = mpRWStm->Tell() - mnCompatPos;
+
+        if( mnTotalSize > nReadSize )
+            mpRWStm->SeekRel( mnTotalSize - nReadSize );
+    }
+}