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32fc4afb 1/////////////////////////////////////////////////////////////////////////////
67c8c225 2// Name: wx/mstream.h
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3// Purpose: Memory stream classes
4// Author: Guilhem Lavaux
5// Modified by:
6// Created: 11/07/98
7// RCS-ID: $Id$
8// Copyright: (c) Guilhem Lavaux
65571936 9// Licence: wxWindows licence
32fc4afb 10/////////////////////////////////////////////////////////////////////////////
83141d3a 11
34138703
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12#ifndef _WX_WXMMSTREAM_H__
13#define _WX_WXMMSTREAM_H__
32fc4afb 14
ed58dbea 15#include "wx/stream.h"
32fc4afb 16
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17#if wxUSE_STREAMS
18
bddd7a8d 19class WXDLLIMPEXP_BASE wxMemoryInputStream : public wxInputStream
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20{
21public:
67c8c225 22 wxMemoryInputStream(const void *data, size_t length);
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23 virtual ~wxMemoryInputStream();
24 virtual size_t GetSize() const { return m_length; }
25 virtual bool Eof() const;
26
27 char Peek();
79c3e0e1 28
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29 wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
30
31 // deprecated, compatibility only
83141d3a 32 wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
c980c992 33
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34protected:
35 wxStreamBuffer *m_i_streambuf;
0d631778 36
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37 size_t OnSysRead(void *buffer, size_t nbytes);
38 off_t OnSysSeek(off_t pos, wxSeekMode mode);
39 off_t OnSysTell() const;
c980c992 40
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41private:
42 size_t m_length;
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43
44 DECLARE_NO_COPY_CLASS(wxMemoryInputStream)
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45};
46
bddd7a8d 47class WXDLLIMPEXP_BASE wxMemoryOutputStream : public wxOutputStream
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48{
49public:
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50 // if data is !NULL it must be allocated with malloc()
51 wxMemoryOutputStream(void *data = NULL, size_t length = 0);
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52 virtual ~wxMemoryOutputStream();
53 virtual size_t GetSize() const { return m_o_streambuf->GetLastAccess(); }
0d631778 54
67c8c225 55 size_t CopyTo(void *buffer, size_t len) const;
c980c992 56
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57 wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
58
59 // deprecated, compatibility only
60 wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
a324a7bc 61
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62protected:
63 wxStreamBuffer *m_o_streambuf;
c980c992 64
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65protected:
66 size_t OnSysWrite(const void *buffer, size_t nbytes);
67 off_t OnSysSeek(off_t pos, wxSeekMode mode);
68 off_t OnSysTell() const;
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69
70 DECLARE_NO_COPY_CLASS(wxMemoryOutputStream)
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71};
72
32fc4afb 73#endif
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74 // wxUSE_STREAMS
75
76#endif
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77 // _WX_WXMMSTREAM_H__
78