[pygtk] Memory leak when using pangocairo for animation

[Kyle Schaffrick]

On Tue, 30 Sep 2008 09:28:51 -0400
"Seth Remington" <sremington at saberlogic.com> wrote:

> Hello,
> 
> I am not a member of the list but can confirm the OP's discovery of
> the memory leak. I was Googling for this and found this mailing list
> post and then noticed that the date was only three days ago (thanks
> for the quick indexing Google) and thought I should chime in.
> 

Thanks, I was still waiting to hear if anyone was able to reproduce it.
My code does it on two different Linux distros so far. I was hoping I'd
someone would just say "it's because you forgot to X", but unfortunately
I'm beginning to think it's a bug.

> I have a custom cairo widget inheriting from a gtk.DrawingArea that
> displays some text and refreshes very frequently. Using cairo's
> built-in text rendering (i.e. show_text()) I do not see the memory
> leak but when I switched to using pangocairo then I saw the massive
> memory growth.
> 

Good to know the Cairo native rendering doesn't leak, I may have to work
around it this way. Unfortunately, I don't think the built-in Cairo
text rendering supports any sort of markup like Pango does; I am using
that heavily in my app. If I'm right, it would be lots of tedious code
to position things and set fonts and so forth by hand. :(

-Kyle