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List: kde-panel-devel
Subject: Re: multi-screen fixathon
From: "Aaron J. Seigo" <aseigo () kde ! org>
Date: 2008-12-16 17:47:02
Message-ID: 200812161047.06514.aseigo () kde ! org
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On Tuesday 16 December 2008, Marco Martin wrote:
> did set up a really precary twinview, and i can quite reproduce a problem
> like that, the problem seems when you try to select the same activity in
> two views, a thing that can likely break :p
the only way i can imagine that happening is with a multi-input (not multi-
touch!) system with one plasma thread per input queue. iow, doubtful.
what is supposed to happen is this (S for screen, C for containment, V for
view):
* V1 is on S1, V2 is on S2
* S1 is paired with C1, S2 is paired with C2
* user selects C2 on S1
* C2 takes S1 from C1, C1 temporarily get assigned no screen
* C2 then gives it's old screen, S2, to C1
* we end up with S1 paired with C2 and S2 paired with C1
* screenOwnerChanged signals should be emitted at every step along the way,
causing the V1 and V2 views to follow along with what's happening.
* V1 is now viewing C2, V2 is now viewing C1
the question is where along this path does it break down.
--
Aaron J. Seigo
humru othro a kohnu se
GPG Fingerprint: 8B8B 2209 0C6F 7C47 B1EA EE75 D6B7 2EB1 A7F1 DB43
KDE core developer sponsored by Qt Software
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