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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 | #include "wx/bitmap.h" | |
20 | #endif // wxUSE_GUI | |
21 | ||
22 | // ---------------------------------------------------------------------------- | |
23 | // wxMemoryFSHandlerBase | |
24 | // ---------------------------------------------------------------------------- | |
25 | ||
26 | class WXDLLIMPEXP_BASE wxMemoryFSHandlerBase : public wxFileSystemHandler | |
27 | { | |
28 | public: | |
29 | wxMemoryFSHandlerBase(); | |
30 | virtual ~wxMemoryFSHandlerBase(); | |
31 | ||
32 | // Add file to list of files stored in memory. Stored data (bitmap, text or | |
33 | // raw data) will be copied into private memory stream and available under | |
34 | // name "memory:" + filename | |
35 | static void AddFile(const wxString& filename, const wxString& textdata); | |
36 | static void AddFile(const wxString& filename, const void *binarydata, size_t size); | |
37 | static void AddFileWithMimeType(const wxString& filename, | |
38 | const wxString& textdata, | |
39 | const wxString& mimetype); | |
40 | static void AddFileWithMimeType(const wxString& filename, | |
41 | const void *binarydata, size_t size, | |
42 | const wxString& mimetype); | |
43 | ||
44 | // Remove file from memory FS and free occupied memory | |
45 | static void RemoveFile(const wxString& filename); | |
46 | ||
47 | virtual bool CanOpen(const wxString& location); | |
48 | virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location); | |
49 | virtual wxString FindFirst(const wxString& spec, int flags = 0); | |
50 | virtual wxString FindNext(); | |
51 | ||
52 | protected: | |
53 | static bool CheckHash(const wxString& filename); | |
54 | static wxHashTable *m_Hash; | |
55 | }; | |
56 | ||
57 | // ---------------------------------------------------------------------------- | |
58 | // wxMemoryFSHandler | |
59 | // ---------------------------------------------------------------------------- | |
60 | ||
61 | #if wxUSE_GUI | |
62 | ||
63 | // add GUI-only operations to the base class | |
64 | class WXDLLIMPEXP_CORE wxMemoryFSHandler : public wxMemoryFSHandlerBase | |
65 | { | |
66 | public: | |
67 | // bring the base class versions into the scope, otherwise they would be | |
68 | // inaccessible in wxMemoryFSHandler | |
69 | // (unfortunately "using" can't be used as gcc 2.95 doesn't have it...) | |
70 | static void AddFile(const wxString& filename, const wxString& textdata) | |
71 | { | |
72 | wxMemoryFSHandlerBase::AddFile(filename, textdata); | |
73 | } | |
74 | ||
75 | static void AddFile(const wxString& filename, | |
76 | const void *binarydata, | |
77 | size_t size) | |
78 | { | |
79 | wxMemoryFSHandlerBase::AddFile(filename, binarydata, size); | |
80 | } | |
81 | static void AddFileWithMimeType(const wxString& filename, | |
82 | const wxString& textdata, | |
83 | const wxString& mimetype) | |
84 | { | |
85 | wxMemoryFSHandlerBase::AddFileWithMimeType(filename, | |
86 | textdata, | |
87 | mimetype); | |
88 | } | |
89 | static void AddFileWithMimeType(const wxString& filename, | |
90 | const void *binarydata, size_t size, | |
91 | const wxString& mimetype) | |
92 | { | |
93 | wxMemoryFSHandlerBase::AddFileWithMimeType(filename, | |
94 | binarydata, size, | |
95 | mimetype); | |
96 | } | |
97 | ||
98 | #if wxUSE_IMAGE | |
99 | static void AddFile(const wxString& filename, | |
100 | const wxImage& image, | |
101 | wxBitmapType type); | |
102 | ||
103 | static void AddFile(const wxString& filename, | |
104 | const wxBitmap& bitmap, | |
105 | wxBitmapType type); | |
106 | #endif // wxUSE_IMAGE | |
107 | ||
108 | }; | |
109 | ||
110 | #else // !wxUSE_GUI | |
111 | ||
112 | // just the same thing as the base class in wxBase | |
113 | class WXDLLIMPEXP_BASE wxMemoryFSHandler : public wxMemoryFSHandlerBase | |
114 | { | |
115 | }; | |
116 | ||
117 | #endif // wxUSE_GUI/!wxUSE_GUI | |
118 | ||
119 | #endif // wxUSE_FILESYSTEM | |
120 | ||
121 | #endif // _WX_FS_MEM_H_ | |
122 |