positioning of the insertion point at the end

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27030 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/textctrl.cpp

@@ -1451,6 +1451,7 @@ void wxTextCtrl::WriteText(const wxString& str)
         val.Remove( start , end - start ) ;
         val.insert( start , str ) ;
         SetValue( val ) ;
+        SetInsertionPoint( start + str.Length() ) ;
     #endif
     #endif
     }