Re: A bug or a screw up?

[Emmanuele Bassi <ebassi gmail com>]

hi Chris;

it worked in the past by "accident": every widget had its own cairo
context. in GTK+ 3.10 we changed that so that every widget shared the
same cairo surface and context, and the ::draw() signal always got the
context with the correct clip and transformation matrix appropriate
for it. if you want more information, you should read the blog post on
the GTK+ drawing model:

  http://blogs.gnome.org/alexl/2013/11/04/the-modern-gtk-drawing-model/

and this bug:

  https://bugzilla.gnome.org/show_bug.cgi?id=700674#c10

both should explain the issue and the fix.

ciao,
 Emmanuele.


On 7 May 2014 18:03, Chris Moller <moller mollerware com> wrote:
> Yep, that did it.
>
> And to think I stuck that in just to guarantee a known initial condition...
>
> Still, It didn't used to work that way, and I'm not sure it should, but I'll
> leave that to the maintainers.
>
> Thanks a lot--I've been tearing my hair for three days over this.
>
>
>
>
> On 05/07/14 12:50, Nicola Fontana wrote:
> > Il Wed, 07 May 2014 09:22:48 -0400 Chris Moller <moller mollerware com>
> > scrisse:
> >
> > > Is there something new I'm missing?  It didn't used to work that way.
> >
> > Hi,
> >
> > I just removed what seems wrong to me (cairo_identity_matrix) and it
> > appears to work the way you want.
> >
> > Ciao.
>
>
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-- 
W: http://www.emmanuelebassi.name
B: http://blogs.gnome.org/ebassi/