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/msw/calctrl.cpp

@@ -97,6 +97,8 @@ wxCalendarCtrl::Create(wxWindow *parent,
 
     UpdateMarks();
 
+    Connect(wxEVT_LEFT_DOWN,
+            wxMouseEventHandler(wxCalendarCtrl::MSWOnClick));
     Connect(wxEVT_LEFT_DCLICK,
             wxMouseEventHandler(wxCalendarCtrl::MSWOnDoubleClick));
 
@@ -400,4 +402,13 @@ void wxCalendarCtrl::MSWOnDoubleClick(wxMouseEvent& event)
     event.Skip();
 }
 
+void wxCalendarCtrl::MSWOnClick(wxMouseEvent& event)
+{
+    // for some reason, the control doesn't get focus on its own when the user
+    // clicks in it
+    SetFocus();
+
+    event.Skip();
+}
+
 #endif // wxUSE_CALENDARCTRL