fix SequenceOutputStream constness

Change-Id: I6e1039c077602b2cb42702cb4131f9503ef533c2

2 files changed, 16 insertions, 3 deletions

diff --git a/include/oox/core/filterbase.hxx b/include/oox/core/filterbase.hxx
index dcbebc122309..3accd63f2872 100644
--- a/include/oox/core/filterbase.hxx
+++ b/include/oox/core/filterbase.hxx
@@ -196,7 +196,7 @@ public:
 
     /** Imports the raw binary data from the specified stream.
         @return  True, if the data could be imported from the stream. */
-    bool                importBinaryData( StreamDataSequence const & orDataSeq, const OUString& rStreamName );
+    bool                importBinaryData( StreamDataSequence & orDataSeq, const OUString& rStreamName );
 
     // com.sun.star.lang.XServiceInfo interface -------------------------------
 
diff --git a/include/oox/helper/binaryoutputstream.hxx b/include/oox/helper/binaryoutputstream.hxx
index 2b954a66f49a..21f563227fd8 100644
--- a/include/oox/helper/binaryoutputstream.hxx
+++ b/include/oox/helper/binaryoutputstream.hxx
@@ -175,7 +175,7 @@ private:
     construction, the stream points to the beginning of the passed data
     sequence. The data sequence is expanded automatically while writing to it.
  */
-class OOX_DLLPUBLIC SequenceOutputStream : public SequenceSeekableStream, public BinaryOutputStream
+class OOX_DLLPUBLIC SequenceOutputStream : public BinaryOutputStream
 {
 public:
     /** Constructs the wrapper object for the passed data sequence.
@@ -185,13 +185,26 @@ public:
             wrapper. The data sequence MUST NOT be changed from outside as long
             as this stream wrapper is used to write to it.
      */
-    explicit            SequenceOutputStream( StreamDataSequence const & rData );
+    explicit            SequenceOutputStream( StreamDataSequence & rData );
 
     /** Writes the passed data sequence. */
     virtual void        writeData( const StreamDataSequence& rData, size_t nAtomSize = 1 ) override;
 
     /** Write nBytes bytes from the (preallocated!) buffer pMem. */
     virtual void        writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize = 1 ) override;
+
+    /** Returns the size of the wrapped data sequence. */
+    virtual sal_Int64   size() const override;
+    /** Returns the current stream position. */
+    virtual sal_Int64   tell() const override;
+    /** Seeks the stream to the passed position. */
+    virtual void        seek( sal_Int64 nPos ) override;
+    /** Releases the reference to the data sequence. */
+    virtual void        close() override;
+
+private:
+    StreamDataSequence* mpData;   ///< Wrapped data sequence.
+    sal_Int32           mnPos;          ///< Current position in the sequence.
 };