| 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 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__) |
| 13 | // Some older compilers (such as EMX) cannot handle |
| 14 | // #pragma interface/implementation correctly, iff |
| 15 | // #pragma implementation is used in _two_ translation |
| 16 | // units (as created by e.g. event.cpp compiled for |
| 17 | // libwx_base and event.cpp compiled for libwx_gui_core). |
| 18 | // So we must not use those pragmas for those compilers in |
| 19 | // such files. |
| 20 | #pragma interface "fs_mem.h" |
| 21 | #endif |
| 22 | |
| 23 | #include "wx/defs.h" |
| 24 | |
| 25 | #if wxUSE_FILESYSTEM |
| 26 | |
| 27 | #include "wx/filesys.h" |
| 28 | |
| 29 | #if wxUSE_GUI |
| 30 | class WXDLLIMPEXP_CORE wxBitmap; |
| 31 | class WXDLLIMPEXP_CORE wxImage; |
| 32 | #endif // wxUSE_GUI |
| 33 | |
| 34 | // ---------------------------------------------------------------------------- |
| 35 | // wxMemoryFSHandlerBase |
| 36 | // ---------------------------------------------------------------------------- |
| 37 | |
| 38 | class WXDLLIMPEXP_BASE wxMemoryFSHandlerBase : public wxFileSystemHandler |
| 39 | { |
| 40 | public: |
| 41 | wxMemoryFSHandlerBase(); |
| 42 | ~wxMemoryFSHandlerBase(); |
| 43 | |
| 44 | // Add file to list of files stored in memory. Stored data (bitmap, text or |
| 45 | // raw data) will be copied into private memory stream and available under |
| 46 | // name "memory:" + filename |
| 47 | static void AddFile(const wxString& filename, const wxString& textdata); |
| 48 | static void AddFile(const wxString& filename, const void *binarydata, size_t size); |
| 49 | |
| 50 | // Remove file from memory FS and free occupied memory |
| 51 | static void RemoveFile(const wxString& filename); |
| 52 | |
| 53 | virtual bool CanOpen(const wxString& location); |
| 54 | virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location); |
| 55 | virtual wxString FindFirst(const wxString& spec, int flags = 0); |
| 56 | virtual wxString FindNext(); |
| 57 | |
| 58 | protected: |
| 59 | static bool CheckHash(const wxString& filename); |
| 60 | static wxHashTable *m_Hash; |
| 61 | }; |
| 62 | |
| 63 | // ---------------------------------------------------------------------------- |
| 64 | // wxMemoryFSHandler |
| 65 | // ---------------------------------------------------------------------------- |
| 66 | |
| 67 | #if wxUSE_GUI |
| 68 | |
| 69 | // add GUI-only operations to the base class |
| 70 | class WXDLLIMPEXP_CORE wxMemoryFSHandler : public wxMemoryFSHandlerBase |
| 71 | { |
| 72 | public: |
| 73 | // bring the base class versions into the scope, otherwise they would be |
| 74 | // inaccessible in wxMemoryFSHandler |
| 75 | // (unfortunately "using" can't be used as gcc 2.95 doesn't have it...) |
| 76 | static void AddFile(const wxString& filename, const wxString& textdata) |
| 77 | { |
| 78 | wxMemoryFSHandlerBase::AddFile(filename, textdata); |
| 79 | } |
| 80 | |
| 81 | static void AddFile(const wxString& filename, |
| 82 | const void *binarydata, |
| 83 | size_t size) |
| 84 | { |
| 85 | wxMemoryFSHandlerBase::AddFile(filename, binarydata, size); |
| 86 | } |
| 87 | |
| 88 | #if wxUSE_IMAGE |
| 89 | static void AddFile(const wxString& filename, |
| 90 | const wxImage& image, |
| 91 | long type); |
| 92 | |
| 93 | static void AddFile(const wxString& filename, |
| 94 | const wxBitmap& bitmap, |
| 95 | long type); |
| 96 | #endif // wxUSE_IMAGE |
| 97 | |
| 98 | }; |
| 99 | |
| 100 | #else // !wxUSE_GUI |
| 101 | |
| 102 | // just the same thing as the base class in wxBase |
| 103 | class WXDLLIMPEXP_BASE wxMemoryFSHandler : public wxMemoryFSHandlerBase |
| 104 | { |
| 105 | }; |
| 106 | |
| 107 | #endif // wxUSE_GUI/!wxUSE_GUI |
| 108 | |
| 109 | #endif // wxUSE_FILESYSTEM |
| 110 | |
| 111 | #endif // _WX_FS_MEM_H_ |
| 112 | |