SetStyle/GetStyle corrections

Added compatibility ctor to wxTextAttrEx
wxRichTextCtrl should take a string value for wxTextCtrl compatibility


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39961 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/richtext/richtextbuffer.h

@@ -263,6 +263,7 @@ class WXDLLIMPEXP_RICHTEXT wxTextAttrEx: public wxTextAttr
 public:
     // ctors
     wxTextAttrEx(const wxTextAttrEx& attr);
+    wxTextAttrEx(const wxTextAttr& attr) { Init(); (*this) = attr; }
     wxTextAttrEx() { Init(); }
 
     // Initialise this object.