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Spinner
=======
The :class:`Gtk.Spinner` displays an icon-size spinning animation.
It is often used as an alternative to a :class:`GtkProgressBar`
for displaying indefinite activity, instead of actual progress.
To start the animation, use :meth:`Gtk.Spinner.start`,
to stop it use :meth:`Gtk.Spinner.stop`.
Example
-------
.. image:: ../images/spinner_example.png
.. literalinclude:: ../examples/spinner_example.py
:linenos:
Extended example
----------------
An extended example that uses a timeout function to start and stop
the spinning animation.
The :func:`on_timeout` function is called at regular intervals
until it returns ``False``, at which point the timeout is automatically
destroyed and the function will not be called again.
Example
^^^^^^^
.. image:: ../images/spinner_ext_example.png
.. literalinclude:: ../examples/spinner_ext_example.py
:linenos: