comp.lang.idl-pvwave archive: archive » Re: Widget convulsions.

Home » Public Forums » archive » Re: Widget convulsions.

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Widget convulsions. [message #4552 is a reply to message #4550]

Fri, 09 June 1995 00:00

thompson
Messages: 584
Registered: August 1991

Senior Member

ph2tjh@sunc.sheffield.ac.uk (Tim Hammond) writes:

> Hello,

> I'm currently working on a project which involves the creation of
> a lot of compound widgets which act as the graphical interface to
> a large suite of FORTRAN routines. I'm finding the widgets in IDL
> very easy to handle and have produced what I think are good
> results, but I do have one problem which I wonder if anyone else
> has encountered (and perhaps knows a solution to?).
> I find that when the value of a widget is updated using the
> widget_control...set_value=... type construction the whole
> compound widget seems to go through a convulsion as the
> widget disappears and then reappears with its new value. This is
> particularly noticeable when the compound widget is destroyed
> and in some cases the effect can last for quite a while before
> the widget disappears. The actual running of the program is
> not affected in any way, but it makes the finished interface
> look a lot less professional.
> Is there perhaps a way of avoiding this that I haven't yet come
> across?

> Technical note: I am running IDL 3.6.1(c) on a DEC alpha (the problem
> did not seem to be there for IDL 3.5.0 - perhaps because it ran
> faster?).

> Many thanks,

> Tim Hammond.

> ------------
> hammond@solg2.bnsc.rl.ac.uk

I've also run into this behavior and complained to RSI about it. It appears to
have been introduced with IDL v3.6. My workaround was simply to not call
WIDGET_CONTROL so often, i.e. update the widget less frequently. It also
appeared that updating label widgets was faster than updating text widgets, but
maybe that's not always the case.

The problem appears to persist in IDL 4.0.

Bill Thompson

Report message to a moderator

[Message index]

		Re: Widget convulsions. By: patterso on Fri, 09 June 1995 00:00
		Re: Widget convulsions. By: thompson on Fri, 09 June 1995 00:00
		Re: Widget convulsions. By: kotsines on Thu, 08 June 1995 00:00

Previous Topic:	How to make GIF file?
Next Topic:	Re: Casting floating point number into e-notation

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 15:27:26 PDT 2025

Total time taken to generate the page: 1.28357 seconds