set focus to the control when it's clicked

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@53014 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/calctrlg.cpp

@@ -1500,6 +1500,10 @@ void wxGenericCalendarCtrl::OnClick(wxMouseEvent& event)
             event.Skip();
             break;
     }
+
+    // as we don't (always) skip the message, we're not going to receive the
+    // focus on click by default if we don't do it ourselves
+    SetFocus();
 }
 
 wxCalendarHitTestResult wxGenericCalendarCtrl::HitTest(const wxPoint& pos,