[prev in list] [next in list] [prev in thread] [next in thread] 

List:       kde-core-devel
Subject:    Re: Support for animated icons (on mouseover)
From:       Waldo Bastian <bastian () kde ! org>
Date:       2002-01-17 23:11:09
[Download RAW message or body]

On Thursday 17 January 2002 05:44 am, David Faure wrote:
> > I have to try it to want it defaulted off?  I can't apply common sense,
> > and experience with other animations locking up my XServer?
>
> This is about changing the icon's pixmap, a simple
> QIconViewItem::setPixmap()! How is this going to lock up your X server
> ??????

That happens in the QMovie::current_frame() call where the frame is prepared 
and send to the X-server. It doesn't lock up the X-server of course, but it 
certainly causes traffic. Just like a regular mouse-over causes tarffic, only 
this time it is more prolonged.

The biggest performance problem is probably just the disk-access for opening 
the movie. That's not a problem when your system is idle, but when you have 
pressure on your io-system it might take a while. In that case it would 
probably make the UI jerky.

Cheers,
Waldo
-- 
bastian@kde.org  |   SuSE Labs KDE Developer  |  bastian@suse.com

[prev in list] [next in list] [prev in thread] [next in thread]