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# -*- coding: utf-8 -*-
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# Author: Mauro Soria
import os
import shlex
import struct
import platform
import subprocess
def human_size(num):
base = 1024
for x in ["B ", "KB", "MB", "GB"]:
if num < base and num > -base:
return "%3.0f%s" % (num, x)
num /= base
return "%3.0f %s" % (num, "TB")
def get_terminal_size():
""" getTerminalSize()
- get width and height of console
- works on linux,os x,windows,cygwin(windows)
originally retrieved from:
http://stackoverflow.com/questions/566746/how-to-get-console-window-width-in-python
"""
current_os = platform.system()
tuple_xy = None
if current_os == "Windows":
tuple_xy = _get_terminal_size_windows()
if tuple_xy is None:
tuple_xy = _get_terminal_size_tput()
# needed for window's python in cygwin's xterm!
if current_os in ["Linux", "Darwin", "FreeBSD"] or current_os.startswith("CYGWIN"):
tuple_xy = _get_terminal_size_linux()
if tuple_xy is None:
tuple_xy = (80, 25) # default value
return tuple_xy
def _get_terminal_size_windows():
try:
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:
(
bufx,
bufy,
curx,
cury,
wattr,
left,
top,
right,
bottom,
maxx,
maxy,
) = struct.unpack("hhhhHhhhhhh", csbi.raw)
sizex = right - left + 1
sizey = bottom - top + 1
return sizex, sizey
except Exception:
pass
def _get_terminal_size_tput():
# get terminal width
# src: http://stackoverflow.com/questions/263890/how-do-i-find-the-width-height-of-a-terminal-window
try:
cols = int(subprocess.check_call(shlex.split("tput cols")))
rows = int(subprocess.check_call(shlex.split("tput lines")))
return (cols, rows)
except Exception:
pass
def _get_terminal_size_linux():
def ioctl_gwinsz(fd):
try:
import fcntl
import termios
cr = struct.unpack("hh", fcntl.ioctl(fd, termios.TIOCGWINSZ, "1234"))
return cr
except Exception:
pass
cr = ioctl_gwinsz(0) or ioctl_gwinsz(1) or ioctl_gwinsz(2)
if not cr:
try:
fd = os.open(os.ctermid(), os.O_RDONLY)
cr = ioctl_gwinsz(fd)
os.close(fd)
except Exception:
pass
if not cr:
try:
cr = (os.environ["LINES"], os.environ["COLUMNS"])
except Exception:
return None
return int(cr[1]), int(cr[0])
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