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=================
Cairo Integration
=================
Despite `cairo <https://cairographics.org/>`__ not being a GObject based
library, PyGObject provides special cairo integration through `pycairo
<https://pycairo.readthedocs.io>`__. Functions returning and taking cairo data
types get automatically converted to pycairo objects and vice versa.
Some distros ship the PyGObject cairo support in a separate package. If you've
followed the instructions on ":ref:`gettingstarted`" you should have everything
installed.
If your application requires the cairo integration you can use
:func:`gi.require_foreign`:
.. code:: python
try:
gi.require_foreign("cairo")
except ImportError:
print("No pycairo integration :(")
Note that PyGObject currently does not support `cairocffi
<https://pypi.python.org/pypi/cairocffi>`__, only pycairo.
Demo
----
The following example shows a :obj:`Gtk.Window` with a custom drawing in Python
using pycairo.
.. figure:: images/cairo_integration.png
:scale: 75%
:align: center
.. literalinclude:: code/cairo-demo.py
:linenos:
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