rjb at rz.uni-potsdam.de
Mon Jan 3 07:05:31 EST 2005
>>Are there advantages of this approach compared to Dave C's suggestion of
>>>on menuPick pNew, pOld
>>> hide group pOld
>>> show group pNew
>>Now that I realize that there is a second parameter provided, it
>>seems like the better way - but are there any cases where the
>>"pOld" wouldn't be what might be expected ?
>I don't think it makes much difference, but the former may be a
>better example of "defensive programming" as it accounts for the
>possibility that some other script (or even the developer during
>editing) may leave a group visible that isn't the same as pOld.
> Richard Gaskin
> Fourth World Media Corporation
Richard's approach is more generic and can be used when some tabs
show more than a single grp (it is plausible to have some group
'shared' by a few tabs).
Furthermore, the pOld parameter is not always passed, although I
think this happens only when changing cards (I never bothered to
investigate the circumstances). This is why I mentioned using a
on menuPick pNew
if the showingTab of me is not empty then hide grp (the showingTab of me)
show grp pNew -- or: go cd pNew
set the showingTab of me to pNew
Preserving the visible grp name allows me also to sync the tab button
correctly with the displayed grp when reopening the stack. This can
be required when using multiple card approach.
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