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From: sho@gibbs.physics.purdue.edu (Sho Kuwamoto)
Newsgroups: comp.sys.mac.programmer
Subject: ThinkC CEditText confusion
Message-ID: <5021@dirac.physics.purdue.edu>
Date: 1 May 91 11:42:04 GMT
Sender: news@dirac.physics.purdue.edu
Organization: Purdue Univ. Physics Dept, W.Lafayette, IN
Lines: 36

Is the think-c list still active?  I haven't gotten anything from
them in a while.  Could someone send me their address?  It's possible
that I've unsubscribed and forgotten about it.  In either case I have
a question about the class library, and any suggestions will save
countless hairs from being ripped out of this scalp.

***

I have a CEditText inside another enclosure.  I move that
enclosure using the ChangeSize() method.  Everything works
roughly right, but I find the text has scrolled to a strange
position.  I'm not talking about things being scrolled a little
oddly.  I'm talking about text scrolled completely out of the 
enclosure.  It seems that this doesn't happen for short moves.
(<1 line vertically, <? horizontally)

I'd almost understand it if the text had stayed put while the
CEditText moved above it, but the text moves in an odd,
hard-to-describe relationship to the pane.  I've looked at the source
code for CStaticText, and it's obvious that the author put
considerable effort in calculating how the text should be altered in
response to a ResizeFrame().  I've tried a couple of things, but I
can't seem to find a simple fix, short of completely rewriting large
portions of that code.

I see roughly three possibilities:
   * I misunderstand how the CEditText class is supposed to behave.
   * I am misusing the class somehow.
   * There is a bug.

Anyone else have this problem?  Anyone have any suggestions?  I'm running
Think C 4.0.2.  If this is actually a bug, was it fixed in 4.0.4?  

-Sho
-- 
sho@physics.purdue.edu