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Store fd for screen_size at creation time

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Kovid Goyal 2018-05-10 18:27:18 +05:30
parent 686727a7c3
commit 029500f3ed
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 4 additions and 2 deletions
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6
kitty/utils.py
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@ -78,7 +78,7 @@ def parse_color_set(raw):
continue
def screen_size_function():
def screen_size_function(fd=None):
ans = getattr(screen_size_function, 'ans', None)
if ans is None:
from collections import namedtuple
@ -86,11 +86,13 @@ def screen_size_function():
import fcntl
import termios
Size = namedtuple('Size', 'rows cols width height cell_width cell_height')
if fd is None:
fd = sys.stdout
def screen_size():
if screen_size.changed:
buf = array.array('H', [0, 0, 0, 0])
fcntl.ioctl(sys.stdout, termios.TIOCGWINSZ, buf)
fcntl.ioctl(fd, termios.TIOCGWINSZ, buf)
rows, cols, width, height = tuple(buf)
cell_width, cell_height = width // (cols or 1), height // (rows or 1)
screen_size.ans = Size(rows, cols, width, height, cell_width, cell_height)