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94 lines
2.5 KiB
Python
94 lines
2.5 KiB
Python
#!/usr/bin/env python
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from time import sleep
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from os import path as op
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import sys
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from subprocess import check_call, check_output
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from glob import glob
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def bdopen(fname):
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return open(op.join(basedir, fname))
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def read(fname):
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return bdopen(fname).read()
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for basedir in glob('/sys/bus/iio/devices/iio:device*'):
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if 'accel' in read('name'):
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break
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else:
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sys.stderr.write("Can't find an accellerator device!\n")
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sys.exit(1)
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def update_devices():
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devices = check_output(['xinput', '--list', '--name-only']).splitlines()
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touchscreen_names = ['touchscreen', 'wacom', 'pen']
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touchscreens = [i for i in devices if any(j in i.lower() for j in touchscreen_names)]
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touchpad_names = ['touchpad', 'trackpoint']
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touchpads = [i for i in devices if any(j in i.lower() for j in touchpad_names)]
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return touchscreens, touchpads
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disable_touchpads = False
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scale = float(read('in_accel_scale'))
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g = 7.0 # (m^2 / s) sensibility, gravity trigger
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STATES = [
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{'rot': 'normal', 'coord': '1 0 0 0 1 0 0 0 1', 'touchpad': 'enable',
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'check': lambda x, y: y <= -g},
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{'rot': 'inverted', 'coord': '-1 0 1 0 -1 1 0 0 1', 'touchpad': 'disable',
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'check': lambda x, y: y >= g},
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{'rot': 'left', 'coord': '0 -1 1 1 0 0 0 0 1', 'touchpad': 'disable',
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'check': lambda x, y: x >= g},
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{'rot': 'right', 'coord': '0 1 0 -1 0 1 0 0 1', 'touchpad': 'disable',
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'check': lambda x, y: x <= -g},
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]
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def rotate(state):
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s = STATES[state]
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check_call(['xrandr', '-o', s['rot']])
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touchscreens, touchpads = update_devices()
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for dev in touchscreens if disable_touchpads else (touchscreens + touchpads):
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check_call([
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'xinput', 'set-prop', dev,
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'Coordinate Transformation Matrix',
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] + s['coord'].split())
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if disable_touchpads:
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for dev in touchpads:
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check_call(['xinput', s['touchpad'], dev])
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def read_accel(fp):
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fp.seek(0)
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return float(fp.read()) * scale
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if __name__ == '__main__':
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accel_x = bdopen('in_accel_x_raw')
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accel_y = bdopen('in_accel_y_raw')
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current_state = None
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while True:
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x = read_accel(accel_x)
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y = read_accel(accel_y)
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for i in range(4):
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if i == current_state:
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continue
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if STATES[i]['check'](x, y):
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current_state = i
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try:
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rotate(i)
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except Exception as ex:
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print('Error rotating: {}'.format(ex))
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break
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sleep(1)
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