[Panel-devel] Finishing up the Layout Stuff

Aaron J. Seigo aseigo at kde.org
Thu Jun 21 05:34:31 CEST 2007

On Wednesday 20 June 2007, Matias Valdenegro T. wrote:
> The actual proposal is just make ALL widgets inherit Plasma::Widget and
> create glue/wrapper code for the elements already provided by Qt (SVG,
> Text, etc)

correct me if i'm wrong, but i thought we had decided to have all widget 
inherit Plasma::LayoutItem directly?

this solves the problem of multiply inheriting GraphicsItem, which would be 
problematic for things such as QGraphicsTextItem, and keeps the hierarchy 

we can use the parent/child relationships that already exist in QGraphicsScene 
betwen QGraphicsItems.

the difference in API that i see right now between LayoutItem and Widget is 
that widget adds geometry, setGeometry, updateGeometry, invalidate (ugly 
name, btw =) and resize. 

invalidate can easily go away and the rest could be moved up into LayoutItem .

the additional parent/child relationships seem to duplicate what is already 
there in QGraphicsScene really.

i'd like to see us keep it simple and move with LayoutItem if at all possible.

Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA  EE75 D6B7 2EB1 A7F1 DB43

Full time KDE developer sponsored by Trolltech (http://www.trolltech.com)
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