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svtplay-dl/lib/svtplay_dl/utils/terminal.py
2020-09-06 14:19:24 +02:00

85 lines
2.5 KiB
Python

import os
import platform
import shlex
import struct
import subprocess
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
https://gist.github.com/jtriley/1108174
"""
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"] 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_output(shlex.split("tput cols")))
rows = int(subprocess.check_output(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])