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87 lines
2 KiB
Python
Executable file
87 lines
2 KiB
Python
Executable file
#!/usr/bin/python
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import sys
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import numpy as np
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import os
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if len(sys.argv) < 3:
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print("Usage: tablet [dev number] [property number] [scale factor] [aspect ratio]")
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#Arguments
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dev = sys.argv[1]
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prop = sys.argv[2]
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scale = float(sys.argv[3])
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tablet_ratio = (lambda s: float(s[0]) / float(s[1]))(sys.argv[4].split(":")) if len(sys.argv) > 4 else 16/9
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#Layout of screens: (x, y, w, h)
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#screens = [
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# (0, 0, 1280, 1024),
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# (1280, 0, 2560, 1440),
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# (3840, 0, 1080, 1920),
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# (4920, 0, 1080, 1920),
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#]
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screens = [
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(0, 0, 1920, 1080),
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]
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#TODO find this with xrandr
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target = screens[0]
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#Physical offset of the selected screen
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offsetx = target[0]
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offsety = target[1]
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#Size of the full screen areas
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sh = 1080
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sw = 1920
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#TODO calculate using list of screens
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#Aspect ratio of the tablet, to avoid weird scaling problems
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#Size of the tablet
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#Prioritize the with when scaling between aspect ratios
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tw = target[2]
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th = tw / tablet_ratio
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print(tw, "x", th)
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if "-r" in sys.argv or "-l" in sys.argv:
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th = target[2]
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tw = th / tablet_ratio
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#make a variable that will try to make the scale the same over diferent resoultions
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f = target[3] / target[3]
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print ("f value =", f)
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#calculate the new area size
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aw = tw * scale * f
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ah = th * scale * f
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ox = (target[2] - aw) / 2 + offsetx
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oy = (target[3] - ah) / 2 + offsety
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#ox = offsetx
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#oy = offsety
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c0 = aw / sw
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c2 = ah / sh
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c1 = ox / sw
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c3 = oy / sh
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print(str(c0), "0", str(c1), "0", str(c2), str(c3), "0 0 1")
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transform = np.matrix([[c0, 0, c1], [0, c2, c3], [0, 0, 1]])
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leftrotate = np.matrix([[0, -1, 1], [1, 0, 0], [0, 0, 1]])
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rightrotate = np.matrix([[0, 1, 0], [-1, 0, 1], [0, 0, 1]])
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if "-r" in sys.argv:
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transform *= rightrotate
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if "-l" in sys.argv:
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transform *= leftrotate
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arr = np.squeeze(np.asarray(transform))
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os.system(" ".join(["xinput set-prop", dev, prop, " ".join([str(x) for x in [arr[0, 0], arr[0, 1], arr[0, 2], arr[1, 0], arr[1, 1], arr[1, 2], arr[2, 0], arr[2, 1], arr[2, 2]]])]))
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#alias tablet2="xinput set-prop 18 156 2.45 0 -0.725 0 2.45 -0.725 0 0 1"
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