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Re: Widget creation performance [message #47313 is a reply to message #47312]

Fri, 03 February 2006 08:17

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Ricardo Bugalho writes:

> I'm having some trouble with the performance of widget creation.
> One of the components in my program contains a list of items, for which
> I need to have a few labels and buttons per entry.
> To achieve this, whenever the item list changes, I destroy the list's
> base widget and then recreate a new base for my entry list and the
> entries' widgets.
> But it's slow. I can actually see IDL redrawing the widgets. The problem
> seems to be that for every widget I add, IDL reorganizes the layout.
> Does anyone have any ideias?

Turn updating off for your top-level base widget until you
are finished creating your new widget, then turn it back on.

Widget_Control, tlb, UPDATE=0
..... do your widget thing here....
Widget_Control, tlb, UPDATE=1

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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		Re: Widget creation performance By: Ricardo Bugalho on Fri, 03 February 2006 09:01
		Re: Widget creation performance By: David Fanning on Fri, 03 February 2006 08:17

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