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From: mcgregor@zin.DEC.COM (SCOTT MCGREGOR)
Newsgroups: comp.windows.x
Subject: Re: Warping the pointer for a reconfigured widget
Message-ID: <8711232121.AA19584@decwrl.dec.com>
Date: Mon, 23-Nov-87 19:05:00 EST
Article-I.D.: decwrl.8711232121.AA19584
Posted: Mon Nov 23 19:05:00 1987
Date-Received: Thu, 26-Nov-87 20:32:14 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 22

Ellis;

My underlying model of the system leads me to have some difficulty with your
proposal. 

First of all, I view the user as "owning" the pointer and not the system,
suggesting that it is almost never the right thing to do to change the location
of the pointer unless the user moves it.  Assuming we disagree on that
religious point, then it still isn't ok for an individual widget to decide
whether the pointer should be warped because presumably the behaviour should be
consistent across the system. 

The disable concept points out another difficulty-- you can't always tell
(from the widget) what the right thing to do is.  Sometimes the desired
effect is to warp and other times not.

If you insist on warping, it seems better to leave the warping to the code that
caused the re-layout, since it is the only place that has a chance of knowing
what the right thing to do is.

Scott.