wx: Fix crash when garbage collect event handlers (debugger caused seg fault)

wxStyledTextCtrl had no wrapper class so, because it was not detected
that it had virtual destructors, thus references to it was not cleaned
up on destruction. When a process dies and wx cleans up the event handlers
access was made to the deleted object and caused a seg fault.

Added a testcase which I thought could provoke the bug but didn't.

1 files changed, 12 insertions, 1 deletions

diff --git a/lib/wx/test/wx_basic_SUITE.erl b/lib/wx/test/wx_basic_SUITE.erl
index d55a037599..c5b0927bf3 100644
--- a/lib/wx/test/wx_basic_SUITE.erl
+++ b/lib/wx/test/wx_basic_SUITE.erl
@@ -324,7 +324,18 @@ data_types(_Config) ->
 wx_object(TestInfo) when is_atom(TestInfo) -> wx_test_lib:tc_info(TestInfo);
 wx_object(Config) ->
     wx:new(),
-    Frame = ?mt(wxFrame, wx_obj_test:start([])),
+    Me = self(),
+    Init = fun() ->
+		   Frame = wxFrame:new(wx:null(), ?wxID_ANY, "Test wx_object", [{size, {500, 400}}]),
+		   Sz = wxBoxSizer:new(?wxHORIZONTAL),
+		   Panel = wxPanel:new(Frame),
+		   wxSizer:add(Sz, Panel, [{flag, ?wxEXPAND}, {proportion, 1}]),
+		   wxPanel:connect(Panel, size, [{skip, true}]),
+		   wxPanel:connect(Panel, paint, [callback, {userData, Me}]),
+		   wxWindow:show(Frame),
+		   {Frame, {Frame, Panel}}
+	   end,
+    Frame = ?mt(wxFrame, wx_obj_test:start([{init, Init}])),
     timer:sleep(500),
     ?m(ok, check_events(flush())),