Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!olivea!oliveb!amdahl!JUTS!duts!gjf00
From: gjf00@duts.ccc.amdahl.com (Gordon Freedman)
Newsgroups: comp.windows.x.motif
Subject: How do I get window to resize?
Message-ID: <33iu02bN07Of01@JUTS.ccc.amdahl.com>
Date: 30 Apr 91 02:16:07 GMT
Sender: netnews@ccc.amdahl.com
Reply-To: gjf00@DUTS.ccc.amdahl.com (Gordon Freedman)
Organization: Amdahl Corporation, Sunnyvale CA
Lines: 32

Does anybody know how request or force a window to resize itself to something
sensible after changing the layout of some of the widgets in the window?

I have a window with two rowcols in it. They start out with XmNpacking
set to PACK_TIGHT, but I want to be able to change to PACK_COLUMN with 2
for XmNnumColumns. I defined a callback for a toggle button to toggle 
between the two states.

In the callback, I set XmNpacking for the two rowcols. Unfortunately, I can't
figure out how to get the window to resize itself. I don't want to have to
figure out how big the window should be and use something like XtResizeWidget.
I don't explicitly specify any sizes at all for the widgets in the window,
Motif (or Xt or X) does the right thing based on attachments and number of
characters/columns/etc, so I don't get involved at all trying to figure out
the size of any widgets/forms/windows when creating and realizing the window
and its widgets.

I have tried many things, such as unmanaging and remanaging all of the
widgets from the rowcols on up to the main window (just under the top
level shell), and unrealizing and then realizing the top level. All this
does is make the window flash funny, and then make the user have to 
resposition the window. The rowcols change from one column to two (from
TIGHT to COLUMN) and vice versa, but the window size stays the same. 

Note that the rowcols shrink vertically when going from PACK_TIGHT to
PACK_COLUMN, but grow horizontally. They do the opposite when going the
other way.

Any help would be greatly apreciated. Thanks in advance.
--
Gordon Freedman: gjf00@duts.ccc.amdahl.com
Disclaimer: My opinions! Not my employers!