documented Set/GetIcon(), added (not quite pure) virtual GetIcon() in the base class

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36481 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/statbmp.h

@@ -18,9 +18,7 @@
 
 #include "wx/control.h"
 #include "wx/bitmap.h"
-
-class WXDLLEXPORT wxIcon;
-class WXDLLEXPORT wxBitmap;
+#include "wx/icon.h"
 
 extern WXDLLEXPORT_DATA(const wxChar*) wxStaticBitmapNameStr;
 
@@ -35,6 +33,12 @@ public:
     virtual void SetIcon(const wxIcon& icon) = 0;
     virtual void SetBitmap(const wxBitmap& bitmap) = 0;
     virtual wxBitmap GetBitmap() const = 0;
+    virtual wxIcon GetIcon() const /* = 0 -- should be pure virtual */
+    {
+        // stub it out here for now as not all ports implement it (but they
+        // should)
+        return wxIcon();
+    }
 
     // overriden base class virtuals
     virtual bool AcceptsFocus() const { return false; }