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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: fs_mem.h | |
3 | // Purpose: in-memory file system | |
4 | // Author: Vaclav Slavik | |
5 | // Copyright: (c) 2000 Vaclav Slavik | |
6 | // Licence: wxWindows licence | |
7 | ///////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | #ifndef _WX_FS_MEM_H_ | |
10 | #define _WX_FS_MEM_H_ | |
11 | ||
12 | #include "wx/defs.h" | |
13 | ||
14 | #if wxUSE_FILESYSTEM | |
15 | ||
16 | #include "wx/filesys.h" | |
17 | ||
18 | #if wxUSE_GUI | |
19 | class WXDLLIMPEXP_CORE wxBitmap; | |
20 | class WXDLLIMPEXP_CORE wxImage; | |
21 | #endif // wxUSE_GUI | |
22 | ||
23 | // ---------------------------------------------------------------------------- | |
24 | // wxMemoryFSHandlerBase | |
25 | // ---------------------------------------------------------------------------- | |
26 | ||
27 | class WXDLLIMPEXP_BASE wxMemoryFSHandlerBase : public wxFileSystemHandler | |
28 | { | |
29 | public: | |
30 | wxMemoryFSHandlerBase(); | |
31 | virtual ~wxMemoryFSHandlerBase(); | |
32 | ||
33 | // Add file to list of files stored in memory. Stored data (bitmap, text or | |
34 | // raw data) will be copied into private memory stream and available under | |
35 | // name "memory:" + filename | |
36 | static void AddFile(const wxString& filename, const wxString& textdata); | |
37 | static void AddFile(const wxString& filename, const void *binarydata, size_t size); | |
38 | ||
39 | // Remove file from memory FS and free occupied memory | |
40 | static void RemoveFile(const wxString& filename); | |
41 | ||
42 | virtual bool CanOpen(const wxString& location); | |
43 | virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location); | |
44 | virtual wxString FindFirst(const wxString& spec, int flags = 0); | |
45 | virtual wxString FindNext(); | |
46 | ||
47 | protected: | |
48 | static bool CheckHash(const wxString& filename); | |
49 | static wxHashTable *m_Hash; | |
50 | }; | |
51 | ||
52 | // ---------------------------------------------------------------------------- | |
53 | // wxMemoryFSHandler | |
54 | // ---------------------------------------------------------------------------- | |
55 | ||
56 | #if wxUSE_GUI | |
57 | ||
58 | // add GUI-only operations to the base class | |
59 | class WXDLLIMPEXP_CORE wxMemoryFSHandler : public wxMemoryFSHandlerBase | |
60 | { | |
61 | public: | |
62 | // bring the base class versions into the scope, otherwise they would be | |
63 | // inaccessible in wxMemoryFSHandler | |
64 | // (unfortunately "using" can't be used as gcc 2.95 doesn't have it...) | |
65 | static void AddFile(const wxString& filename, const wxString& textdata) | |
66 | { | |
67 | wxMemoryFSHandlerBase::AddFile(filename, textdata); | |
68 | } | |
69 | ||
70 | static void AddFile(const wxString& filename, | |
71 | const void *binarydata, | |
72 | size_t size) | |
73 | { | |
74 | wxMemoryFSHandlerBase::AddFile(filename, binarydata, size); | |
75 | } | |
76 | ||
77 | #if wxUSE_IMAGE | |
78 | static void AddFile(const wxString& filename, | |
79 | const wxImage& image, | |
80 | long type); | |
81 | ||
82 | static void AddFile(const wxString& filename, | |
83 | const wxBitmap& bitmap, | |
84 | long type); | |
85 | #endif // wxUSE_IMAGE | |
86 | ||
87 | }; | |
88 | ||
89 | #else // !wxUSE_GUI | |
90 | ||
91 | // just the same thing as the base class in wxBase | |
92 | class WXDLLIMPEXP_BASE wxMemoryFSHandler : public wxMemoryFSHandlerBase | |
93 | { | |
94 | }; | |
95 | ||
96 | #endif // wxUSE_GUI/!wxUSE_GUI | |
97 | ||
98 | #endif // wxUSE_FILESYSTEM | |
99 | ||
100 | #endif // _WX_FS_MEM_H_ | |
101 |