Re: [pygame] I nedd speed

[Pete Shinners <pete@shinners.org>]

Gabriele Farina wrote:
> Tnx a lot I already have a "dirty" flag. Tnx a lot for the other things...
if you're just using standardish button controls it shouldn't be hard to 
 get the rendering speed up to speed. if you find yourself needing to 
redraw the same control many times, you could render the widget to an 
offscreen surface, then use that as a cache each time you need to draw 
the control. but with good 'dirty' control this is not always such a big 
issue.

for most gui stuff, rendering is the only real bottleneck. outside that 
you can do all the widget traversal and message passing you want and not 
notice any effect on speed.

> Another question:
> To manageing events like rollover, rollour, etc  I test if the mouse is in
> or not in the widget...but I see that if I create more than one window, the
> events will be managed also for the widgets hidden by other windows
an easy way to handle this is to render the widgets in reverse order. 
(or you could pass events to widgets in reverse order). if you are just 
drawing a list of widgets, the ones at the end of the list are drawn "on 
top" of everything else. so reversing one of these will make them both 
appear to sync up better.