| Re: Problem with modal widgets [message #8985 is a reply to message #8959] |
Fri, 16 May 1997 00:00   |
rivers
Messages: 228
Registered: March 1991
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Senior Member |
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In article <337B5385.5AC8@bial1.ucsd.edu>, David Foster <foster@bial1.ucsd.edu> writes:
> This will either be a good puzzle, or a stupid question. Enough said.
>
> I want to "truly center" a modal widget in the center of the screen,
> meaning that you have to take into account the size of the widget
> itself. Prior to IDL 5.0 I could do this by:
>
> * create widget
> * unmap widget
> * realize widget
> * use WIDGET_CONTROL, wid, TLB_GET_SIZE to get the size
> of the widget, and calculate position accordingly
> * use WIDGET_CONTROL, wid, TLB_SET_[XY]OFFSET to position widget
> * map the widget
...
> And since you have to realize the widget before you can get the size
> of it, I don't see a way around this problem.
I have not looked at this specific problem, but in general you do NOT have to
realize a widget to get its size. I frequently create dummy widgets which are
never realized just to get their size, allowing me to then neatly lay out real
widgets. Does this not work for your widget?
____________________________________________________________
Mark Rivers (773) 702-2279 (office)
CARS (773) 702-9951 (secretary)
Univ. of Chicago (773) 702-5454 (FAX)
5640 S. Ellis Ave. (708) 922-0499 (home)
Chicago, IL 60637 rivers@cars.uchicago.edu (e-mail)
or:
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Argonne, IL 60439 (630) 252-0443 (FAX)
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