[Traverso-devel] Some QGraphicsView (the canvas) problems

[Remon]

Hi,

As you know, there has been some babbling going on here about painting 
performance, or the lack of it.

The painting overhead for the playhead is insignificant, and perhaps a triple 
buffer approach can make it even more insignificant.


Zooming however has doubled the cpu usage, which is correct, currently zooming 
generates 2 paintevents!

I'm sorry for the trouble, and you was right to make note of this Nicola, it 
could in fact have been gone by unnoticed due me thinking it was a xorg 
problem.

There are some more issues that cause unwanted repaints, I'll investigate why 
this happens (no luck so far), eventually send a problem report about this to 
trolltech, and hope the best for it.

(Or burn the damn thing to the ground, and use another canvas that does what 
it advertises it should do!!!!!!)

Have a nice weekend,

Remon