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List:       koffice-devel
Subject:    Re: Caching of shapes
From:       Johannes Simon <johannes.simon () gmail ! com>
Date:       2007-10-30 16:55:00
Message-ID: 1193763300.25139.38.camel () Speedstar
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Am Dienstag, den 30.10.2007, 16:59 +0100 schrieb Thomas Zander:
> On Tuesday 30 October 2007 16:50:54 Boudewijn Rempt wrote:
> > The big problem if you cache the shape as a QPixmap per shape, you
> > will lose transparency when painting the shapes.
> 
> AFAIK pixmaps can be transparent.

Quote from doc.trolltech.com:
"Depending on the system, QPixmap is stored using a RGB32 or a premultiplied alpha \
format. If the image has an alpha channel, and if the system allows, the preferred \
format is premultiplied alpha." So we apparently do have transparency support in a \
QPixmap.

 - Joh

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