Better fix

[wxWidgets.git] / include / wx / palmos / gdiimage.h

diff --git a/include/wx/palmos/gdiimage.h b/include/wx/palmos/gdiimage.h
index 561134a248ce5d6d77ad82d4a911462d72d8cd95..debcecebfac6f04acf022849bfb44e0b001528b7 100644 (file)
--- a/include/wx/palmos/gdiimage.h
+++ b/include/wx/palmos/gdiimage.h
@@ -3,7 +3,7 @@
 // Purpose:     wxGDIImage class: base class for wxBitmap, wxIcon, wxCursor
 //              under Palm OS
 // Author:      William Osborne - minimal working wxPalmOS port
-// Modified by:
+// Modified by: Yunhui Fu
 // Created:     10/13/04
 // RCS-ID:      $Id$
 // Copyright:   (c) William Osborne
@@ -20,9 +20,9 @@
 #include "wx/gdicmn.h"          // wxBITMAP_TYPE_INVALID
 #include "wx/list.h"
 
-class WXDLLEXPORT wxGDIImageRefData;
-class WXDLLEXPORT wxGDIImageHandler;
-class WXDLLEXPORT wxGDIImage;
+class WXDLLIMPEXP_FWD_CORE wxGDIImageRefData;
+class WXDLLIMPEXP_FWD_CORE wxGDIImageHandler;
+class WXDLLIMPEXP_FWD_CORE wxGDIImage;
 
 WX_DECLARE_EXPORTED_LIST(wxGDIImageHandler, wxGDIImageHandlerList);
 
@@ -41,7 +41,7 @@ public:
     }
 
     // accessors
-    bool IsOk() const { return m_handle != 0; }
+    virtual bool IsOk() const { return m_handle != 0; }
 
     void SetSize(int w, int h) { m_width = w; m_height = h; }
 
@@ -94,7 +94,7 @@ public:
 
     // real handler operations: to implement in derived classes
     virtual bool Create(wxGDIImage *image,
-                        void *data,
+                        const void* data,
                         long flags,
                         int width, int height, int depth = 1) = 0;
     virtual bool Load(wxGDIImage *image,
@@ -147,8 +147,6 @@ public:
     void SetHandle(WXHANDLE handle)
         { EnsureHasData(); GetGDIImageData()->m_handle = handle; }
 
-    bool Ok() const { return GetHandle() != 0; }
-
     int GetWidth() const { return IsNull() ? 0 : GetGDIImageData()->m_width; }
     int GetHeight() const { return IsNull() ? 0 : GetGDIImageData()->m_height; }
     int GetDepth() const { return IsNull() ? 0 : GetGDIImageData()->m_depth; }
@@ -171,6 +169,15 @@ public:
 protected:
     // create the data for the derived class here
     virtual wxGDIImageRefData *CreateData() const = 0;
+    virtual wxGDIRefData *CreateGDIRefData() const { return CreateData(); }
+    // we can't [efficiently] clone objects of this class
+    virtual wxGDIRefData *
+    CloneGDIRefData(const wxGDIRefData *WXUNUSED(data)) const
+    {
+        wxFAIL_MSG( _T("must be implemented if used") );
+
+        return NULL;
+    }
 
     static wxGDIImageHandlerList ms_handlers;
 };