added wxMemoryFSHandler for storing VFS in memory

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6128 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/fs_mem.h

@@ -0,0 +1,64 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        fs_mem.h
+// Purpose:     in-memory file system
+// Author:      Vaclav Slavik
+// Copyright:   (c) 2000 Vaclav Slavik
+// Licence:     wxWindows Licence
+/////////////////////////////////////////////////////////////////////////////
+
+
+#ifdef __GNUG__
+#pragma implementation
+#endif
+
+#include "wx/wxprec.h"
+
+#ifdef __BORDLANDC__
+#pragma hdrstop
+#endif
+
+#if (wxUSE_HTML || wxUSE_FS_INET || wxUSE_FS_ZIP) && wxUSE_STREAMS
+
+#ifndef WXPRECOMP
+#include "wx/wx.h"
+#endif
+
+#include "wx/filesys.h"
+#include "wx/image.h"
+#include "wx/bitmap.h"
+
+//--------------------------------------------------------------------------------
+// wxMemoryFSHandler
+//--------------------------------------------------------------------------------
+
+class WXDLLEXPORT wxMemoryFSHandler : public wxFileSystemHandler
+{
+    public:
+        wxMemoryFSHandler();
+        ~wxMemoryFSHandler();
+
+        // Add file to list of files stored in memory. Stored data (bitmap, text or raw data)
+        // will be copied into private memory stream and available under name "memory:" + filename
+        static void AddFile(const wxString& filename, wxImage& image, long type);
+        static void AddFile(const wxString& filename, const wxBitmap& bitmap, long type);
+        static void AddFile(const wxString& filename, const wxString& textdata);        
+        static void AddFile(const wxString& filename, const void *binarydata, size_t size);
+        
+        // Remove file from memory FS and free occupied memory
+        static void RemoveFile(const wxString& filename);
+        
+        virtual bool CanOpen(const wxString& location);
+        virtual wxFSFile* OpenFile(wxFileSystem& fs, const wxString& location);
+        virtual wxString FindFirst(const wxString& spec, int flags = 0);
+        virtual wxString FindNext();
+        
+    private:
+        static wxHashTable *m_Hash;
+        
+        static bool CheckHash(const wxString& filename);
+};
+
+#endif 
+  // (wxUSE_HTML || wxUSE_FS_INET || wxUSE_FS_ZIP) && wxUSE_STREAMS
+
+