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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: zstream.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_WXZSTREAM_H__ | |
12 | #define _WX_WXZSTREAM_H__ | |
13 | ||
14 | #ifdef __GNUG__ | |
15 | #pragma interface | |
16 | #endif | |
17 | ||
18 | #include <wx/stream.h> | |
19 | ||
20 | class wxZlibInputStream: public wxFilterInputStream { | |
21 | public: | |
22 | wxZlibInputStream(wxInputStream& stream); | |
23 | virtual ~wxZlibInputStream(); | |
24 | ||
25 | bool Eof() const; | |
26 | ||
27 | protected: | |
28 | size_t DoRead(void *buffer, size_t size); | |
29 | off_t DoSeekInput(off_t WXUNUSED(pos), wxSeekMode WXUNUSED(mode)) { return wxInvalidOffset; } | |
30 | off_t DoTellInput() const { return wxInvalidOffset; } | |
31 | ||
32 | protected: | |
33 | size_t m_z_size; | |
34 | unsigned char *m_z_buffer; | |
35 | struct z_stream_s *m_inflate; | |
36 | }; | |
37 | ||
38 | class wxZlibOutputStream: public wxFilterOutputStream { | |
39 | public: | |
40 | wxZlibOutputStream(wxOutputStream& stream); | |
41 | virtual ~wxZlibOutputStream(); | |
42 | ||
43 | void Sync(); | |
44 | ||
45 | bool Bad() const; | |
46 | ||
47 | protected: | |
48 | size_t DoWrite(const void *buffer, size_t size); | |
49 | off_t DoSeekOutput(off_t WXUNUSED(pos), wxSeekMode WXUNUSED(mode)) { return wxInvalidOffset; } | |
50 | off_t DoTellOutput() const { return wxInvalidOffset; } | |
51 | ||
52 | protected: | |
53 | size_t m_z_size; | |
54 | unsigned char *m_z_buffer; | |
55 | struct z_stream_s *m_deflate; | |
56 | }; | |
57 | ||
58 | #endif |