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#! /usr/bin/env python
##############################################################################
## DendroPy Phylogenetic Computing Library.
##
## Copyright 2010-2015 Jeet Sukumaran and Mark T. Holder.
## All rights reserved.
##
## See "LICENSE.rst" for terms and conditions of usage.
##
## If you use this work or any portion thereof in published work,
## please cite it as:
##
## Sukumaran, J. and M. T. Holder. 2010. DendroPy: a Python library
## for phylogenetic computing. Bioinformatics 26: 1569-1571.
##
##############################################################################
import sys
def ttysize():
try:
fp = os.popen('stty -a', 'r')
ln1 = fp.readline()
fp.close()
if not ln1:
raise ValueError('tty size not supported for input')
vals = {'rows':None, 'columns':None}
for ph in string.split(ln1, ';'):
x = string.split(ph)
if len(x) == 2:
vals[x[0]] = x[1]
vals[x[1]] = x[0]
return vals['rows'], vals['columns']
except:
return 40, 80
def posix_terminal_width():
"""Return estimated terminal width."""
width = 0
try:
import struct, fcntl, termios
s = struct.pack('HHHH', 0, 0, 0, 0)
x = fcntl.ioctl(1, termios.TIOCGWINSZ, s)
width = struct.unpack('HHHH', x)[1]
except IOError:
pass
if width <= 0:
try:
width = int(os.environ['COLUMNS'])
except:
pass
if width <= 0:
width = 80
return width
def win_terminal_width():
from ctypes import windll, create_string_buffer
# stdin handle is -10, stdout handle is -11, stderr handle is -12
h = windll.kernel32.GetStdHandle(-12)
csbi = create_string_buffer(22)
res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
if res:
import struct
(bufx, bufy, curx, cury, wattr,
left, top, right, bottom, maxx, maxy) = struct.unpack("hhhhHhhhhhh", csbi.raw)
sizex = right - left + 1
sizey = bottom - top + 1
else:
sizex, sizey = 80, 25 # can't determine actual size - return default values
return sizex-1
def terminal_width():
if sys.platform.startswith('win'):
return win_terminal_width()
else:
return posix_terminal_width()
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