From kde-panel-devel  Mon Oct 06 20:47:06 2008
From: Rafael =?iso-8859-15?q?Fern=E1ndez_L=F3pez?= <ereslibre () kde ! org>
Date: Mon, 06 Oct 2008 20:47:06 +0000
To: kde-panel-devel
Subject: Re: Plasma::Svg question
Message-Id: <200810062247.08947.ereslibre () kde ! org>
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Hi,

> you can also call setOpacity on the QPainter directly, but that can *very*
> slow and that above method is usually faster, and at worst the same speed.

Aaron explained it pretty well, and please, don't use setOpacity (as also=20
Aaron did suggest). I want to put emphasis here... since setOpacity disable=
s=20
all the hardware acceleration (as Fredrik said: "the kiss of death"). Check=
=20
out this techbase tutorial for further information:

http://techbase.kde.org/Development/Tutorials/Graphics/Performance


Regards,
Rafael Fern=E1ndez L=F3pez.

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