[squeak-dev] Dependencies on Cursor

Nicolas Cellier nicolas.cellier.aka.nice at gmail.com
Tue Jun 25 19:58:15 UTC 2013


Ah yes, maybe it's some sort of useful warning: "beware of epileptic
crisis" or something like that...



2013/6/25 Chris Muller <asqueaker at gmail.com>

> That's a somewhat self contradicting statement -- because:
>
>    "the cursor was blinking fast between these states read/write/hour
> glass/normal"
>
> is chock full of information about the running program.  First, and
> foremost, one would know the system is not locked up.  Indicating
> reading vs. writing vs. processing is very useful with applications
> that involve a lot of I/O, such as database or network applications.
> By relating input actions to cursor status, the system can impart a
> lot information about what it's doing.
>
> By contrast, the Cuis approach of indicating busy on a timer confirms
> to the waiting user something they already know -- that they're
> waiting.  It tells them that the built-in timer to switch the cursor
> is working, but nothing else about what the system is or isn't doing.
>
> This should not be taken as a criticism of Cuis itself.  There's a lot
> to like about Cuis.
>
> On Tue, Jun 25, 2013 at 10:55 AM, Nicolas Cellier
> <nicolas.cellier.aka.nice at gmail.com> wrote:
> > That's another point, I remember when using ST80, the cursor was blinking
> > fast between these states read/write/hour glass/normal, and this
> particular
> > feedback did not add much value.
> >
> >
> > 2013/6/25 Frank Shearar <frank.shearar at gmail.com>
> >>
> >> On 25 June 2013 16:41, Ken Dickey <Ken.Dickey at whidbey.com> wrote:
> >> > I think Juan's point may have been missed, but shows up in his change
> >> > notes:
> >> >
> >> > - Automatic hourglass mouse pointer when Morphic is busy
> >> > - Removed about 80 calls like 'Cursor wait showWhile: []', as they are
> >> > no longer needed!
> >>
> >> I hadn't missed this particular point. But then, the #showWhile: calls
> >> usually show _kinds_ of busy-ness: reading, writing, etc.
> >>
> >> frank
> >>
> >> > $0.02
> >> > -KenD
> >> > --
> >> > Ken [dot] Dickey [at] whidbey [dot] com
> >> >
> >>
> >
> >
> >
> >
>
>
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