summaryrefslogtreecommitdiff
path: root/oox/inc/oox/ole/vbainputstream.hxx
diff options
context:
space:
mode:
Diffstat (limited to 'oox/inc/oox/ole/vbainputstream.hxx')
-rw-r--r--oox/inc/oox/ole/vbainputstream.hxx74
1 files changed, 74 insertions, 0 deletions
diff --git a/oox/inc/oox/ole/vbainputstream.hxx b/oox/inc/oox/ole/vbainputstream.hxx
new file mode 100644
index 000000000000..86b09efa87a6
--- /dev/null
+++ b/oox/inc/oox/ole/vbainputstream.hxx
@@ -0,0 +1,74 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * 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.
+ *
+ ************************************************************************/
+
+#ifndef OOX_OLE_VBAINPUTSTREAM_HXX
+#define OOX_OLE_VBAINPUTSTREAM_HXX
+
+#include <vector>
+#include "oox/helper/binaryinputstream.hxx"
+
+namespace oox {
+namespace ole {
+
+// ============================================================================
+
+/** A non-seekable input stream that implements run-length decompression. */
+class VbaInputStream : public BinaryInputStream
+{
+public:
+ explicit VbaInputStream( BinaryInputStream& rInStrm );
+
+ /** Reads nBytes bytes to the passed sequence.
+ @return Number of bytes really read. */
+ virtual sal_Int32 readData( StreamDataSequence& orData, sal_Int32 nBytes );
+ /** Reads nBytes bytes to the (existing) buffer opMem.
+ @return Number of bytes really read. */
+ virtual sal_Int32 readMemory( void* opMem, sal_Int32 nBytes );
+ /** Seeks the stream forward by the passed number of bytes. */
+ virtual void skip( sal_Int32 nBytes );
+
+private:
+ /** If no data left in chunk buffer, reads the next chunk from stream. */
+ bool updateChunk();
+
+private:
+ typedef ::std::vector< sal_uInt8 > ChunkBuffer;
+
+ BinaryInputStream& mrInStrm;
+ ChunkBuffer maChunk;
+ size_t mnChunkPos;
+};
+
+// ============================================================================
+
+} // namespace ole
+} // namespace oox
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */