Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!apple!baum
From: baum@Apple.COM (Allen J. Baum)
Newsgroups: comp.sys.mac.hypercard
Subject: Re: using fields with scroll bars
Message-ID: <32570@apple.Apple.COM>
Date: 21 Jun 89 17:33:17 GMT
References: <4161@emory.mathcs.emory.edu>
Reply-To: baum@apple.UUCP (Allen Baum)
Organization: Apple Computer, Inc.
Lines: 27

[]
>In article <4161@emory.mathcs.emory.edu> riddle@mathcs.emory.edu (Larry Riddle) writes:
>I need some help with the following problem:
...basically, highlighting a line of a scrolling field
>Any suggestions?

I had exactly the same problem. I'm assuming you don't want more than one line
highlighted at once. I set the locktext of the scrolling field to true, so that
mouseclicks on the field send mouseup/down to the script of the field. The
script is:
  on mouseup
    set lockText of me to false --stop intercepted mouseclicks
    click at clickloc           --put text cursor in field
    select the selectedline     --use 'selectedline' function to select line
    set lockText of me true     --start intercepting mouseclicks again
   --put your action here, i.e.
    set visible of field (word 2 of the selectedline) to true
  end mouseup
You can determine the number of the line that you selected by looking at
    word 2 of the selectedline
Note that if a line wraps, both 'physical' lines will be selected.
This is fairly slow, unfortunately. I'm not sure what is taking so long,
but it may be just a bit too slow for real interactive work.

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