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#!/usr/bin/python3
# Toggle the brightness on the given randr output
import subprocess
import os
import os.path
import re
import random
import sys
import tempfile
class Display:
index = None
name = None
offset = None
size = None
wall_filename = None
def __cmp__(self, other):
if self.offset[1] != other.offset[1]:
return cmp(self.offset[1], other.offset[1])
return cmp(self.offset[0], other.offset[0])
def parse_outputs():
outputs = {}
p = subprocess.run(['xrandr', '--verbose'], check = True, capture_output = True,
encoding = 'utf-8')
cur_output = None
for line in p.stdout.splitlines():
m = re.match(r'(\S*) connected.*', line)
if m:
cur_output = m.group(1)
continue
if 'Brightness:' in line:
_, val = line.strip().split()
outputs[cur_output] = float(val)
cur_output = None
return outputs
if len(sys.argv) < 2:
sys.stderr.write('Usage: %s <output name>\n'%(sys.argv[0]))
sys.exit(1)
output = sys.argv[1]
outputs = parse_outputs()
if not output in outputs:
sys.stderr.write('No such output: %s\n' % output)
sys.exit(1)
val = 0.0 if outputs[output] == 1.0 else 1.0
subprocess.run(['xrandr', '--output', output, '--brightness', str(val)],
check = True)
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