Path: utzoo!attcan!uunet!snorkelwacker!bloom-beacon!EXPO.LCS.MIT.EDU!kit
From: kit@EXPO.LCS.MIT.EDU (Chris D. Peterson)
Newsgroups: comp.windows.x
Subject: Re: Athena asciiStringWidget questions
Message-ID: <8910262127.AA20276@expo.lcs.mit.edu>
Date: 26 Oct 89 21:27:39 GMT
References: <8909252128.AA28066@mbunix.mitre.org>
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 32


> I'd like prevent a user from
> typing into just any text widget (ie talking in some else's window).

Smash all the editing translations for the text widget that is to be read only
(Use *Text.Translations: #replace ...).  Also use SetKeyboard focus so that all
editing commands go to the other text widget.  The function
XtSetKeyboardFocus(form, edit_text) should do the trick.

> Now, for a more mundane question: How do I allow more text to be saved 
> in an asciiStringWidget...Should I just allocate a big bunch of memory and
> create my own string source?  

In R3 this is about it, don't forget to pass the allocacted size of the buffer
to the text widget at XtNlength.

> Also, I'd like the widget to just forget about
> text further back than N characters, instead of beeping at me.  A sliding text
> window of sorts.  Is that possible?  (As an aside, DEC's S TEXT WIDGET allows
> for a string 2^31 - 1 characters long.  How do they do that?)

You can do this, but you will have to do the work, when you get close you will
have to delete the first N characters of the buffer, and add in the new N
characters at the end of the buffer, use XtTextReplace(). 


						Chris D. Peterson     
						MIT X Consortium 

Net:	 kit@expo.lcs.mit.edu
Phone:   (617) 253 - 9608	
Address: MIT - Room NE43-213