LibreOffice Module oox (master)  1
vbainputstream.hxx
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19 
20 #ifndef INCLUDED_OOX_OLE_VBAINPUTSTREAM_HXX
21 #define INCLUDED_OOX_OLE_VBAINPUTSTREAM_HXX
22 
23 #include <cstddef>
24 #include <vector>
25 
28 #include <sal/types.h>
29 
30 namespace oox::ole {
31 
32 
34 class VbaInputStream final : public BinaryInputStream
35 {
36 public:
37  explicit VbaInputStream( BinaryInputStream& rInStrm );
38 
40  virtual sal_Int64 size() const override;
42  virtual sal_Int64 tell() const override;
44  virtual void seek( sal_Int64 nPos ) override;
46  virtual void close() override;
47 
50  virtual sal_Int32 readData( StreamDataSequence& orData, sal_Int32 nBytes, size_t nAtomSize = 1 ) override;
53  virtual sal_Int32 readMemory( void* opMem, sal_Int32 nBytes, size_t nAtomSize = 1 ) override;
55  virtual void skip( sal_Int32 nBytes, size_t nAtomSize = 1 ) override;
56 
57 private:
59  bool updateChunk();
60 
61 private:
62  typedef ::std::vector< sal_uInt8 > ChunkBuffer;
63 
65  ChunkBuffer maChunk;
66  size_t mnChunkPos;
67 };
68 
69 
70 } // namespace oox::ole
71 
72 #endif
73 
74 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
bool updateChunk()
If no data left in chunk buffer, reads the next chunk from stream.
VbaInputStream(BinaryInputStream &rInStrm)
virtual void seek(sal_Int64 nPos) override
Does nothing, stream is not seekable.
virtual sal_Int32 readMemory(void *opMem, sal_Int32 nBytes, size_t nAtomSize=1) override
Reads nBytes bytes to the (existing) buffer opMem.
virtual sal_Int64 tell() const override
Returns -1, stream position is not tracked.
virtual void close() override
Closes the input stream but not the wrapped stream.
Interface for binary input stream classes.
virtual sal_Int32 readData(StreamDataSequence &orData, sal_Int32 nBytes, size_t nAtomSize=1) override
Reads nBytes bytes to the passed sequence.
css::uno::Sequence< sal_Int8 > StreamDataSequence
A non-seekable input stream that implements run-length decompression.
virtual void skip(sal_Int32 nBytes, size_t nAtomSize=1) override
Seeks the stream forward by the passed number of bytes.
BinaryInputStream * mpInStrm
::std::vector< sal_uInt8 > ChunkBuffer
virtual sal_Int64 size() const override
Returns -1, stream size is not determinable.
sal_uInt16 nPos