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[wxWidgets.git] / include / wx / zipstrm.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: zipstream.h
3 // Purpose: wxZipInputStream for reading files from ZIP archive
4 // Author: Vaclav Slavik
5 // Copyright: (c) 1999 Vaclav Slavik
6 // Licence: wxWindows Licence
7 /////////////////////////////////////////////////////////////////////////////
8
9 #ifndef __ZIPSTREAM_H__
10 #define __ZIPSTREAM_H__
11
12 #if defined(__GNUG__) && !defined(__APPLE__)
13 #pragma interface "zipstrm.h"
14 #endif
15
16 #include "wx/defs.h"
17
18 #if wxUSE_STREAMS && wxUSE_ZIPSTREAM && wxUSE_ZLIB
19
20 #include "wx/stream.h"
21
22 //--------------------------------------------------------------------------------
23 // wxZipInputStream
24 // This class is input stream from ZIP archive. The archive
25 // must be local file (accessible via FILE*)
26 //--------------------------------------------------------------------------------
27
28
29 class WXDLLEXPORT wxZipInputStream : public wxInputStream
30 {
31 public:
32 wxZipInputStream(const wxString& archive, const wxString& file);
33 // archive is name of .zip archive, file is name of file to be extracted.
34 // Remember that archive must be local file accesible via fopen, fread functions!
35 ~wxZipInputStream();
36
37 virtual size_t GetSize() const {return m_Size;}
38 virtual bool Eof() const;
39
40 protected:
41 virtual size_t OnSysRead(void *buffer, size_t bufsize);
42 virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
43 virtual off_t OnSysTell() const {return m_Pos;}
44
45 private:
46 size_t m_Size;
47 off_t m_Pos;
48
49 // this void* is handle of archive . I'm sorry it is void and not proper
50 // type but I don't want to make unzip.h header public.
51 void *m_Archive;
52 };
53
54
55 #endif
56 // wxUSE_STREAMS && wxUSE_ZIPSTREAM && wxUSE_ZLIB
57
58 #endif
59 // __ZIPSTREAM_H__