add an assert indicating that old code overriding OnExecute() must be updated with 2.9

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

diff --git a/include/wx/imagpng.h b/include/wx/imagpng.h
index 8a1cbdb74672c0042dfce31bf6cbf4fcef160bbc..67aae57b63697111e9ccdd9003742b1211c8b3d9 100644 (file)
--- a/include/wx/imagpng.h
+++ b/include/wx/imagpng.h
@@ -10,11 +10,7 @@
 #ifndef _WX_IMAGPNG_H_
 #define _WX_IMAGPNG_H_
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma interface "imagpng.h"
-#endif
-
-#include "wx/image.h"
+#include "wx/defs.h"
 
 //-----------------------------------------------------------------------------
 // wxPNGHandler
@@ -22,6 +18,8 @@
 
 #if wxUSE_LIBPNG
 
+#include "wx/image.h"
+
 #define wxIMAGE_OPTION_PNG_FORMAT    wxT("PngFormat")
 #define wxIMAGE_OPTION_PNG_BITDEPTH  wxT("PngBitDepth")
 
@@ -29,10 +27,10 @@ enum
 {
     wxPNG_TYPE_COLOUR = 0,
     wxPNG_TYPE_GREY = 2,
-    wxPNG_TYPE_GREY_RED = 3,
+    wxPNG_TYPE_GREY_RED = 3
 };
 
-class WXDLLEXPORT wxPNGHandler: public wxImageHandler
+class WXDLLIMPEXP_CORE wxPNGHandler: public wxImageHandler
 {
 public:
     inline wxPNGHandler()
@@ -46,14 +44,16 @@ public:
 #if wxUSE_STREAMS
     virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1 );
     virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=true );
+protected:
     virtual bool DoCanRead( wxInputStream& stream );
 #endif
 
 private:
     DECLARE_DYNAMIC_CLASS(wxPNGHandler)
 };
-#endif
 
+#endif
+  // wxUSE_LIBPNG
 
 #endif
   // _WX_IMAGPNG_H_