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From: holland@m2.csc.ti.com (Fred Hollander)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Editable TextItems in Dialogs - Help!
Message-ID: <68270@ti-csl.CSNET>
Date: 26 Jan 89 16:50:26 GMT
References: <3543@ucdavis.ucdavis.edu> <887@mailrus.cc.umich.edu>
Sender: news@ti-csl.CSNET
Reply-To: holland@m2.UUCP (Fred Hollander)
Organization: TI Computer Science Center, Dallas
Lines: 23

In article <887@mailrus.cc.umich.edu> shane@chablis.cc.umich.edu (Shane Looker) writes:
>In article <3543@ucdavis.ucdavis.edu> jedeline@deneb.ucdavis.edu (Jim Deline) writes:
>>
>>I would like to be able to parse a string as it is being typed
>>into an editable textitem field of a dialog, and have all numbers
>>typed appear subscripted relative to the rest of the string.
>
>An interesting idea.  I don't think you can do it with the normal EditText
>item, since it uses TextEdit.  Probably your best bet is to create a UserItem
>which is modified (the text in it) based on what field you are in, and what key is hit.  The way to do that is to create a filter proc which interecpts keydown
>events, and modifies a global variable.  Then return a hit in the UserItem

I'm not sure if this would work, but, why couldn't you use a filterProc even
with an editText field?  The filterProc could intercept keyDown events.  If
the character is invalid, it could modify itemHit and possibly theEvent.  Like
I said, I haven't tried this but it sounds like it should work.

Fred Hollander
Computer Science Center
Texas Instruments, Inc.
holland%ti-csl@csnet-rela

The above statements are my own and not representative of Texas Instruments.