[cairo] [patch] pycairo: support for unknown surface and pattern types

Owen Taylor otaylor at redhat.com
Thu Aug 28 18:48:19 PDT 2008

The attached patch makes pycairo create a generic proxy of the base type
if it doesn't know the specific type of a surface.

Where I wanted this was to call cr.get_target() and then pass the result
to matplotlib ... I didn't care what type of surface it was, but I
needed it to be wrapped in Python.

The particular surface type that was problematic was a Quartz surface,
so adding Quartz support along the lines of:


Would also fix my problem, but this patch is simple and I believe
correct on principle and increases robustness against future changes:
there is no reason not to let the user manipulate a surface or pattern
generically even if we don't know the specific subclass.

- Owen

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