gitinspector/terminal.py

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2012-05-04 11:40:30 +02:00
# coding: utf-8
#
# Copyright © 2012-2013 Ejwa Software. All rights reserved.
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#
# This file is part of gitinspector.
#
# gitinspector 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 3 of the License, or
# (at your option) any later version.
#
# gitinspector 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 gitinspector. If not, see <http://www.gnu.org/licenses/>.
from __future__ import print_function
import codecs
import os
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import platform
import sys
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__bold__ = "\033[1m"
__normal__ = "\033[0;0m"
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def __get_size_windows__():
res = None
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try:
from ctypes import windll, create_string_buffer
handler = windll.kernel32.GetStdHandle(-12) # stderr
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csbi = create_string_buffer(22)
res = windll.kernel32.GetConsoleScreenBufferInfo(handler, csbi)
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except:
return None
if res:
import struct
(_, _, _, _, _, left, top, right, bottom, _, _) = struct.unpack("hhhhHhhhhhh", csbi.raw)
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sizex = right - left + 1
sizey = bottom - top + 1
return sizex, sizey
else:
return None
def __get_size_linux__():
def ioctl_get_window_size(file_descriptor):
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try:
import fcntl, termios, struct
size = struct.unpack('hh', fcntl.ioctl(file_descriptor, termios.TIOCGWINSZ, '1234'))
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except:
return None
return size
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size = ioctl_get_window_size(0) or ioctl_get_window_size(1) or ioctl_get_window_size(2)
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if not size:
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try:
file_descriptor = os.open(os.ctermid(), os.O_RDONLY)
size = ioctl_get_window_size(file_descriptor)
os.close(file_descriptor)
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except:
pass
if not size:
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try:
size = (os.environ["LINES"], os.environ["COLUMNS"])
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except:
return None
return int(size[1]), int(size[0])
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def clear_row():
print("\b" * 200, end="")
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def skip_escapes(skip):
if skip:
global __bold__
global __normal__
__bold__ = ""
__normal__ = ""
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def printb(string):
print(__bold__ + string + __normal__)
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def get_size():
width = 0
height = 0
if sys.stdout.isatty():
current_os = platform.system()
if current_os == 'Windows':
(width, height) = __get_size_windows__()
elif current_os == 'Linux' or current_os == 'Darwin' or current_os.startswith('CYGWIN'):
(width, height) = __get_size_linux__()
if width > 0:
return (width, height)
return (80, 25)
def set_stdout_encoding():
if not sys.stdout.isatty() and sys.version_info < (3,):
sys.stdout = codecs.getwriter('utf-8')(sys.stdout)