[Graphics] More convenient backend access

[Michael Goffioul]

On Fri, Feb 1, 2008 at 8:07 AM, Shai Ayal <shaiay at gmail.com> wrote:
> Attached is a patch which adds the figure.__backend__ property and
> relevant set method
> Michael, can you please have a look and approve -- I'm not sure I
> understood the interaction between graphics_backend and figure.
>
> Shai
>
> 2008-02-01  Shai Ayal  <shaiay at users.sourceforge.net>
>
>        * graphics.h.in (figure): add __backend__ property and set method
>        (class graphics_backend): add find_backend method
>

It looks OK (although I don't understand why you call find_backend
twice; you could re-use "b", no?).

Michael.