Tray icon flickering
Will Stephenson
wstephenson at kde.org
Sun Jul 9 10:25:29 CEST 2006
On Friday 07 July 2006 13:48, Valentine Sinitsyn wrote:
> When KNetworkManage connects to a wireless network, it shows rotating
> gears with a small progress bar as a tray icon. This is pretty good,
> but sometimes the gear flickers. Am I the only who seeing this? Any
No - it's because the draw to the widget is not double buffered.
> ideas why this may happen? BTW, what's wrong with tray->setMovie()? I
> see the commented code that uses that method but it seems that
> afterwards everything was moved to QTimer/setPixmap animation.
With QMovie the transparent areas of the frame are not cleared before the next
frame is drawn, so you get a smearing overdraw effect. It would work fine if
the animation did not have any transparent areas.
Will
--
Will Stephenson
IRC: Bille
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