🚀 go-pugleaf

bgitv@termo.unit.no (Baard Grimsmo) writes:

:In article <1992Oct23.145352.6439@Celestial.COM> bill@Celestial.COM (Bill Campbell) writes:
:>In <1992Oct21.131950.16914@ugle.unit.no> bgitv@termo.unit.no (Baard Grimsmo) writes:
:>
:>:Is it possible to make Elvis(-1.6) resizing itself into the new window
:>:when the xterm is resized by pulling its corner with the mouse?
	...
:My problem is to make Elvis resize inside a xterm window if the window is
:stretched or shrinked using the mouse after Elvis is started.
:Is it possible or not? My standard vi editor on my SGI-Indigo does!

On most systems, it should be.

A windowsize change *should* send a signal SIGWINCH to apps running in
the window.  This will not work very portably, though!  On a HP-UX
machine, a windowsize change interrupts a pending read() if a SIGWINCH
handler is installed; on an Ultrix machine, it doesn't - you get the
interrupt when the read() is satisfied; and so on - but at least you
should get the windowsize change event at more-or-less appropriate
times.  Then you have to be able to query about the new windowsize.  On
Ultrix (BSD in general I think) you would do a ioctl() with TIOCGWINSZ,
and I *think* the same should work under HP-UX.

What the specific application could or should do upon encountering a
windowsize change, and learning about the new size, is of course fully
dependent upon the app itself (or the system-supplied curses, if the
app relies on that).  Sorry, I've never looked at Elvis internals so
I can't help on that specific score...
-- 
Email: martelli@cadlab.sublink.org                   Phone: ++39 (51) 6130360
CAD.LAB s.p.a., v. Ronzani 7/29, Casalecchio, Italia   Fax: ++39 (51) 6130294