xcb_pointer_control.py
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| #!/usr/bin/env python | |
| # requires xpyb - XCB bindings for python | |
| import xcb | |
| import xcb.xproto | |
| from time import sleep | |
| from itertools import tee | |
| from functools import partial | |
| conn = xcb.connect() | |
| screen = conn.get_setup().roots[0] | |
| window = screen.root | |
| def draw_with_pointer(speed, xs, ys): | |
| period = 1.0/speed | |
| for x, y in zip(xs, ys): | |
| conn.core.WarpPointerChecked(0, window, 0, 0, 0, 0, x, y).check() | |
| sleep(period) | |
| def diagonal(width, height, xs): | |
| y = lambda x: x * float(height) / width | |
| xs1, xs2 = tee(xs) | |
| return xs1, map(y, xs2) | |
| def circle_left_right(r, x0, xs): | |
| import math | |
| def y(x): | |
| x_circle = x - x0 | |
| if abs(x_circle) > r: | |
| return r | |
| elif x % 2 == 0: | |
| return r + math.sqrt(pow(r, 2) - pow(x_circle, 2)) | |
| else: | |
| return r - math.sqrt(pow(r, 2) - pow(x_circle, 2)) | |
| xs1, xs2 = tee(xs) | |
| return xs1, map(y, xs2) | |
| def sin(scale_x, scale_y, xs): | |
| import math | |
| def y(x): | |
| return scale_y - scale_y * math.sin(2 * math.pi * float(x) / scale_x) | |
| xs1, xs2 = tee(xs) | |
| return xs1, map(y, xs2) | |
| def circle(r, x0, y0, rounds, xs): | |
| import math | |
| xs = list(xs) | |
| xs = map(lambda x: float(x) / len(xs) * rounds, xs) | |
| xs, ys = tee(map(lambda x: 2 * math.pi * x, xs)) | |
| xs = map(math.sin, xs) | |
| xs = map(lambda x: x0 + x * r, xs) | |
| ys = map(math.cos, ys) | |
| ys = map(lambda y: y0 + y * r, ys) | |
| return xs, ys | |
| width = screen.width_in_pixels | |
| height = screen.height_in_pixels | |
| diagonal = partial(diagonal, width, height) | |
| circle_left_right = partial(circle_left_right, height / 2, width / 2) | |
| sin = partial(sin, width, height / 2) | |
| circle = partial(circle, height / 2, width / 2, height / 2, 5) | |
| draw_with_pointer(1000, *diagonal(range(width))) | |
| draw_with_pointer(1000, *circle_left_right(range(width))) | |
| draw_with_pointer(1000, *sin(range(width))) | |
| draw_with_pointer(1000, *circle(range(width))) |
