Re: Unknown core dumps

["Juan R." García Blanco <juanrgar gmail com>]

Hi,

Stupid question: have you initialized goocanvasmm?

Regards,
Juan.

On Sat, 2014-10-11 at 13:07 +0200, Kees Kling wrote:
> Hi guys,
>
> Trying to do some coding with Goocanvasmm in combination with gtkmm-3.0. 
> I try to create a editable polyline as a custom item and it is displayed 
> correct, but when I move my mouse over the graphic I get the next 
> errormessages:
>
> (moveDump:28132): GLib-GObject-CRITICAL **: g_object_get_qdata: 
> assertion 'G_IS_OBJECT (object)' failed
>
> (moveDump:28132): GLib-GObject-CRITICAL **: g_object_get_qdata: 
> assertion 'G_IS_OBJECT (object)' failed
>
> (moveDump:28132): glibmm-WARNING **: Failed to wrap object of type 
> '(null)'. Hint: this error is commonly caused by failing to call a 
> library init() function.
>
> In the core I see:
> #0  0x00007f263597056a in g_type_get_qdata () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #1  0x00007f2636b3303c in Glib::wrap_auto(_GObject*, bool) () from 
> /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
> #2  0x00007f26378c9d7d in 
> Glib::ListHandler<Glib::RefPtr<Goocanvas::Item>, 
> Glib::Container_Helpers::TypeTraits<Glib::RefPtr<Goocanvas::Item> > 
>  >::list_to_vector(_GList*, Glib::OwnershipType) () from 
> /usr/lib/libgoocanvasmm-2.0.so.6
> #3  0x00007f26378d310a in Goocanvas::Item::get_items_at_vfunc(double, 
> double, Cairo::RefPtr<Cairo::Context> const&, bool, bool, 
> std::vector<Glib::RefPtr<Goocanvas::Item>, 
> std::allocator<Glib::RefPtr<Goocanvas::Item> > > const&) () from 
> /usr/lib/libgoocanvasmm-2.0.so.6
> #4  0x00007f26378d3284 in 
> Goocanvas::Item_Class::get_items_at_vfunc_callback(_GooCanvasItem*, 
> double, double, _cairo*, int, int, _GList*) ()
>     from /usr/lib/libgoocanvasmm-2.0.so.6
> #5  0x00007f2635ba4754 in ?? () from /usr/lib/libgoocanvas-2.0.so.9
> #6  0x00007f2635ba4754 in ?? () from /usr/lib/libgoocanvas-2.0.so.9
> #7  0x00007f2635bc1378 in goo_canvas_get_item_at () from 
> /usr/lib/libgoocanvas-2.0.so.9
> #8  0x00007f2635bc3817 in ?? () from /usr/lib/libgoocanvas-2.0.so.9
> #9  0x00007f2635bc4bda in ?? () from /usr/lib/libgoocanvas-2.0.so.9
> #10 0x00007f263751f824 in 
> Gtk::Widget::on_motion_notify_event(_GdkEventMotion*) () from 
> /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
> #11 0x00007f2637521a64 in 
> Gtk::Widget_Class::motion_notify_event_callback(_GtkWidget*, 
> _GdkEventMotion*) ()
>     from /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
> #12 0x00007f2634b5648e in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #13 0x00007f26359503b7 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #14 0x00007f2635968e82 in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #15 0x00007f2635969ae2 in g_signal_emit () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #16 0x00007f2634c77794 in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #17 0x00007f2634b5478c in ?? () from /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #18 0x00007f2634b56075 in gtk_main_do_event () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #19 0x00007f2634759d98 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
> #20 0x00007f2634764f9c in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
> #21 0x00007f26359503b7 in ?? () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #22 0x00007f2635968e82 in g_signal_emit_valist () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #23 0x00007f263596a012 in g_signal_emit_by_name () from 
> /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
> #24 0x00007f263475f439 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
> #25 0x00007f2634752be8 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
> #26 0x00007f2635687f13 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #27 0x00007f26356873b6 in g_main_context_dispatch () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #28 0x00007f2635687708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #29 0x00007f2635687b0a in g_main_loop_run () from 
> /lib/x86_64-linux-gnu/libglib-2.0.so.0
> #30 0x00007f2634b55525 in gtk_main () from 
> /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
> #31 0x00007f26374c6d2d in Gtk::Main::run(Gtk::Window&) () from 
> /usr/lib/x86_64-linux-gnu/libgtkmm-3.0.so.1
> #32 0x000000000040edbc in main (argc=1, argv=0x7fff556218c8) at 
> ../main.cc:39
>
>
> Has this something to do with my code or is it a bug in the underlying 
> librarys.
>
> Thanks
> Kees Kling
>
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