curses and terminal resize

[janne halttunen]

Hello all,

I am writing a curses widget library.  The trouble I am having is to 
obtain new values for lines and columns in terminal after resize event. 
  I have a short program below that should demostrate the problem:

"""curses window resize test program. ctrl-c to exit"""

import curses
import signal

def main(w):

     w.nodelay(1)

     count=0

     def handle(*args):
         w.erase()
         w.addstr(0,0, str(count)+str(w.getmaxyx()))

     signal.signal(signal.SIGWINCH, handle)

     handle() # to get the initial values

     while 1:
         count+=1
         w.refresh()

if __name__=='__main__':
     curses.wrapper(main)

# EOF

If you run this in a xterm, you will see that the screen dimesions 
remain the same after every resize.  I have tried calling curses.initscr 
again, but to no avail.  Also the curses.tigetnum for 'lines' and 'cols'
always return the same values.

$ python -V
Python 2.2

$ python -c 'import sys; print sys.platform'
linux-i386

Any help is appreciated,


janne