propagated slots

From: Andrew Dorrell <andrewd_at_eng.uts.edu.au>
Date: Sat, 20 Sep 1997 10:24:53 +1000 (EST)

Hi,

Thanks for the quick replies to previous postings! On a slightly
different matter...

When designing composite widgets which use :propagated slots I would
like to be able to control the keyword used for the propagation. I
need this so that I can have a convinient mechanism for setting things
like the relief and border widths of components in a composite. I see
the idea working a little like this:

(define-class ...

   (button-1) (button-2)
        ...
   (button-relief :allocation :propagated
                        :propagate-as 'relief
                        :propagate-to (button-1 button-2))

        ...)

This approach seems to be much tidier than what I am doing at the
moment - which is allocating these slots as virtual and writing the
appropriate setters and getters manually. Has anyone done this
previously or have any hints as to how I would go about (best) doing
this. (I anticipate it would be a fairly minor change to stklos.stk)

Alternatively, is there already a mechanism for doing this; does
anyone have a better idea?

Thanks in advance,

-- 
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Mr Andrew Dorrell
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AUSTRALIA
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Received on Sat Sep 20 1997 - 02:22:29 CEST