[pygtk] crash and burn in gtk app

[shawn bright]

hello there all.

i am getting this error, sometimes it comes as a warning, and
sometimes it crashes my GUI.

 GtkWarning: gtk_text_layout_real_invalidate: assertion
`layout->wrap_loop_count == 0' failed
  buffer.insert(buffer.get_end_iter(), data)

i am sure that it has something to do with how i plant data in a
buffer for a view.

the code i am using looks like this.


def write_to_viewer(data, buffer, viewer):
    data = '%s\n' % data
    buffer.insert(buffer.get_end_iter(), data)
    if buffer.get_line_count() > 1000:
        buffer.delete(buffer.get_start_iter(),  buffer.get_iter_at_line(200))
    mark = buffer.create_mark("end", buffer.get_end_iter(), False)
    viewer.scroll_to_mark(mark, 0.05, True, 0.0, 1.0)

i have several threads that share this code, in the thread i use something like
def buffer_add(self,  data):
        write_to_viewer(data, self.buffer, self.view)

and i call it with
gobject.idle_add(self.buffer_add, data)

is there something in all of this that could be causing my GUI to crash ?

thanks