Don't return a dangling pointer from wxDateTime::ParseXXX(wxCStrData).

[wxWidgets.git] / include / wx / fs_mem.h

diff --git a/include/wx/fs_mem.h b/include/wx/fs_mem.h
index f85dd29f39f6a753e2b40a7a3c25e355f5fbe25b..6688537ca563e1734e45865c264e3540bf5a60a6 100644 (file)
--- a/include/wx/fs_mem.h
+++ b/include/wx/fs_mem.h
@@ -1,68 +1,140 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        fs_mem.h
+// Name:        wx/fs_mem.h

 // Purpose:     in-memory file system
 // Author:      Vaclav Slavik
 // Copyright:   (c) 2000 Vaclav Slavik
 // 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 implementation
-#endif
+#include "wx/defs.h"

 
 

-#include "wx/wxprec.h"
+#if wxUSE_FILESYSTEM

 
 

-#ifdef __BORDLANDC__
-#pragma hdrstop
-#endif
+#include "wx/filesys.h"

 
 

-#if wxUSE_FILESYSTEM
+#include "wx/hashmap.h"

 
 

-#ifndef WXPRECOMP
-#include "wx/wx.h"
-#endif
+class wxMemoryFSFile;
+WX_DECLARE_STRING_HASH_MAP(wxMemoryFSFile *, wxMemoryFSHash);

 
 

-#include "wx/filesys.h"

 #if wxUSE_GUI
 #if wxUSE_GUI

-#include "wx/image.h"
-#include "wx/bitmap.h"
-#endif
+    #include "wx/bitmap.h"
+#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
 #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);
-        
-        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);
+
+// 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
+
+};
+
+#else // !wxUSE_GUI
+
+// 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_