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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: mstream.h | |
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 | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | #ifndef _WX_WXMMSTREAM_H__ | |
12 | #define _WX_WXMMSTREAM_H__ | |
13 | ||
14 | #include "wx/stream.h" | |
15 | ||
16 | #if wxUSE_STREAMS | |
17 | ||
18 | class wxMemoryInputStream: public wxInputStream { | |
19 | private: | |
20 | size_t m_length; | |
21 | ||
22 | public: | |
23 | wxMemoryInputStream(const char *data, size_t length); | |
24 | virtual ~wxMemoryInputStream(); | |
25 | virtual size_t GetSize() const { return m_length; } | |
26 | ||
27 | char Peek(); | |
28 | ||
29 | wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; } | |
30 | ||
31 | protected: | |
32 | wxStreamBuffer *m_i_streambuf; | |
33 | ||
34 | protected: | |
35 | size_t OnSysRead(void *buffer, size_t nbytes); | |
36 | off_t OnSysSeek(off_t pos, wxSeekMode mode); | |
37 | off_t OnSysTell() const; | |
38 | }; | |
39 | ||
40 | class wxMemoryOutputStream: public wxOutputStream { | |
41 | public: | |
42 | wxMemoryOutputStream(char *data = NULL, size_t length = 0); | |
43 | virtual ~wxMemoryOutputStream(); | |
44 | virtual size_t GetSize() const { return m_o_streambuf->GetLastAccess(); } | |
45 | ||
46 | wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; } | |
47 | ||
48 | size_t CopyTo(char *buffer, size_t len) const; | |
49 | ||
50 | protected: | |
51 | wxStreamBuffer *m_o_streambuf; | |
52 | ||
53 | protected: | |
54 | size_t OnSysWrite(const void *buffer, size_t nbytes); | |
55 | off_t OnSysSeek(off_t pos, wxSeekMode mode); | |
56 | off_t OnSysTell() const; | |
57 | }; | |
58 | ||
59 | #endif | |
60 | // wxUSE_STREAMS | |
61 | ||
62 | #endif | |
63 | // _WX_WXMMSTREAM_H__ | |
64 |