Re: Canvas redraw priority / speed

[ERDI Gergo <cactus cactus rulez org>]

On 23 Aug 2002, Federico Mena Quintero wrote:

> You should be fine with something like (GDK_PRIORITY_EVENTS + 5), that
> is, a lower priority than events but higher priority than the canvas
> update/redraw cycle.  It should work if I understand your scheme
> correctly.

I tried that (with canvas from HEAD), but it gave much worse results than
updating from G_PRIORITY_LOW. Actually, I think anything higher than the
canvas update cycle will be slow -- as this will produce lots of canvas
item creations/deletions totally in vain.

Mind you, canvas HEAD with G_PRIORITY_LOW is still a lot slower than the
GNOME 1 version was. But maybe GTK+ itself is at fault here as well, since
some GTK+ widgets (like spinbuttons) are updated 'live' as well.


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