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RE: [platform-swt-dev] Scrollbar doesn't allow negative values.
|
I cannot add a fixed offset because the region is NOT finite. (Well, I
supose it's MIN_INTEGER).
The workaround would have to be to create a new offset every time I update
the extent (and thus minimums) of the freeform area, and then substract
this offset from the "selection" returned from the Scrollbar during user
scrolls, so 0 becomes 0-offset.
Also, I have to update all of the values on the scrollbar all the time,
even if just the "minimum" is changing, since really the minimum can't
change, it's always 0.
|---------+---------------------------------->
| | "Jeff Brown" |
| | <j9brown@math.uwaterloo|
| | .ca> |
| | Sent by: |
| | platform-swt-dev-admin@|
| | eclipse.org |
| | |
| | |
| | 05/06/2002 09:27 PM |
| | Please respond to |
| | platform-swt-dev |
| | |
|---------+---------------------------------->
>------------------------------------------------------------------------------------------------------------|
| |
| To: <platform-swt-dev@xxxxxxxxxxx> |
| cc: |
| Subject: RE: [platform-swt-dev] Scrollbar doesn't allow negative values. |
| |
| |
>------------------------------------------------------------------------------------------------------------|
... I expect the answer to be of the form: "Platform XYZ does not support
it
natively."
Since you're planning on using a scrollbar, I assume the region to be
scrolled is of a finite size. Why not just add an offset? Think of
setMinimumValue() as a convenience method that unfortunately does not apply
to your scenario.
> -----Original Message-----
> From: platform-swt-dev-admin@xxxxxxxxxxx
> [mailto:platform-swt-dev-admin@xxxxxxxxxxx] On Behalf Of Randy Hudson
> Sent: May 6, 2002 5:55 PM
> To: platform-swt-dev@xxxxxxxxxxx
> Subject: [platform-swt-dev] Scrollbar doesn't allow negative values.
>
>
> I am trying to create a "freeform" surface that potentially
> extends in all
> 4 directions. To do this, I need to do a
> scrollbar.setMinimumValue(int),
> where that int might be less than zero.
>
> Is there any reason Scrollbar doesn't allow its setMinimum to
> take a number
> less than 0?
>
> _______________________________________________
> platform-swt-dev mailing list
> platform-swt-dev@xxxxxxxxxxx
> http://dev.eclipse.org/mailman/listinfo/platform-swt-dev
>
>
#### winmail.dat has been removed from this note on May 06 2002 by Randy
Hudson
