// Purpose: in-memory file system
// Author: Vaclav Slavik
// Copyright: (c) 2000 Vaclav Slavik
-// Licence: wxWindows Licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+#ifndef _WX_FS_MEM_H_
+#define _WX_FS_MEM_H_
-#ifdef __GNUG__
-#pragma interface "fs_mem.h"
-#endif
-
-#include "wx/wxprec.h"
-
-#ifdef __BORDLANDC__
-#pragma hdrstop
-#endif
+#include "wx/defs.h"
#if wxUSE_FILESYSTEM
#include "wx/filesys.h"
+#include "wx/hashmap.h"
+
+class wxMemoryFSFile;
+WX_DECLARE_STRING_HASH_MAP(wxMemoryFSFile *, wxMemoryFSHash);
+
#if wxUSE_GUI
- #include "wx/image.h"
#include "wx/bitmap.h"
-#endif
+#endif // wxUSE_GUI
-//--------------------------------------------------------------------------------
-// wxMemoryFSHandler
-//--------------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
+// wxMemoryFSHandlerBase
+// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxMemoryFSHandler : public wxFileSystemHandler
+class WXDLLIMPEXP_BASE wxMemoryFSHandlerBase : public wxFileSystemHandler
{
- public:
- wxMemoryFSHandler();
- ~wxMemoryFSHandler();
+public:
+ wxMemoryFSHandlerBase();
+ virtual ~wxMemoryFSHandlerBase();
+
+ // 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, const wxString& textdata);
+ static void AddFile(const wxString& filename, const void *binarydata, size_t size);
+ static void AddFileWithMimeType(const wxString& filename,
+ const wxString& textdata,
+ const wxString& mimetype);
+ static void AddFileWithMimeType(const wxString& filename,
+ const void *binarydata, size_t size,
+ const wxString& mimetype);
+
+ // 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();
+
+protected:
+ // check that the given file is not already present in m_Hash; logs an
+ // error and returns false if it does exist
+ static bool CheckDoesntExist(const wxString& filename);
+
+ // the hash map indexed by the names of the files stored in the memory FS
+ static wxMemoryFSHash m_Hash;
+
+ // the file name currently being searched for, i.e. the argument of the
+ // last FindFirst() call or empty string if FindFirst() hasn't been called
+ // yet or FindNext() didn't find anything
+ wxString m_findArgument;
+
+ // iterator into m_Hash used by FindFirst/Next(), possibly m_Hash.end() or
+ // even invalid (can only be used when m_findArgument is not empty)
+ wxMemoryFSHash::const_iterator m_findIter;
+};
+
+// ----------------------------------------------------------------------------
+// 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
#if wxUSE_GUI
- static void AddFile(const wxString& filename, wxImage& image, long type);
- static void AddFile(const wxString& filename, const wxBitmap& bitmap, long type);
-#endif
- 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);
+// add GUI-only operations to the base class
+class WXDLLIMPEXP_CORE wxMemoryFSHandler : public wxMemoryFSHandlerBase
+{
+public:
+ // bring the base class versions into the scope, otherwise they would be
+ // inaccessible in wxMemoryFSHandler
+ // (unfortunately "using" can't be used as gcc 2.95 doesn't have it...)
+ static void AddFile(const wxString& filename, const wxString& textdata)
+ {
+ wxMemoryFSHandlerBase::AddFile(filename, textdata);
+ }
+
+ static void AddFile(const wxString& filename,
+ const void *binarydata,
+ size_t size)
+ {
+ wxMemoryFSHandlerBase::AddFile(filename, binarydata, size);
+ }
+ static void AddFileWithMimeType(const wxString& filename,
+ const wxString& textdata,
+ const wxString& mimetype)
+ {
+ wxMemoryFSHandlerBase::AddFileWithMimeType(filename,
+ textdata,
+ mimetype);
+ }
+ static void AddFileWithMimeType(const wxString& filename,
+ const void *binarydata, size_t size,
+ const wxString& mimetype)
+ {
+ wxMemoryFSHandlerBase::AddFileWithMimeType(filename,
+ binarydata, size,
+ mimetype);
+ }
+
+#if wxUSE_IMAGE
+ static void AddFile(const wxString& filename,
+ const wxImage& image,
+ wxBitmapType type);
+
+ static void AddFile(const wxString& filename,
+ const wxBitmap& bitmap,
+ wxBitmapType type);
+#endif // wxUSE_IMAGE
- 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;
+#else // !wxUSE_GUI
- static bool CheckHash(const wxString& filename);
+// just the same thing as the base class in wxBase
+class WXDLLIMPEXP_BASE wxMemoryFSHandler : public wxMemoryFSHandlerBase
+{
};
-#endif
- // wxUSE_FILESYSTEM
+#endif // wxUSE_GUI/!wxUSE_GUI
+
+#endif // wxUSE_FILESYSTEM
+#endif // _WX_FS_MEM_H_
projects / wxWidgets.git / blobdiff