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Re: gtk/quartz ... a tale of nested incompatible event loops




Hi,
    For Shoebot we use python with gi.repository, along with main_iteration + custom drawing with cairocffi, however on the most recent OSX, when I try and run, nothing is rendered - could this be the same / a similar issue ?
 
S++




On Monday, May 23, 2016 7:20 PM, Paul Davis <paul@xxxxxxxxxxxxxxxxxxxxx> wrote:




On Mon, May 23, 2016 at 2:07 PM, Sébastien Wilmet <swilmet@xxxxxxxxx> wrote:
On Mon, May 23, 2016 at 01:29:44PM -0400, Paul Davis wrote:
<snip>
> I'm emailing it
> just in case anybody else decides to wade into a complete overhaul of the
> design of the glib event loop on Quartz.
<snip>

Looks somewhat obscure and low-level.

The conditions that led to use needing to do this are obscure. The fix is definitely low level. But the issue is a design that landed in GTK+ some years ago (possibly as many as 10 years ago), and is fundamentally problematic. Replacing a call to some variant of poll() with a call into the native windowing system's own event loop is ... well, different :)

 
I think on bugzilla it would have more chances to be read by someone
interested to improve the quartz support in the future. When doing a
complete overhaul, looking at the existing reported bugs seems a good
thing to do.


I would say that there is a 90% chance that I will be person to reimplement things. I wasn't looking so much for someone to fix it for me, but to see how much moral support I might raise :)



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