From 37860093b0e0a767344673717fa0896c0e22e2ea Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Wed, 23 Sep 2020 19:36:20 +1000
Subject: [PATCH] examples: add an example for a fake tablet
Testing tablets without acces to the hw is reasonably common, let's provide a
simple example that can be extended to the user's liking.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
examples/fake-tablet.py | 130 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 130 insertions(+)
create mode 100755 examples/fake-tablet.py
diff --git a/examples/fake-tablet.py b/examples/fake-tablet.py
new file mode 100755
index 0000000..f8b91d5
--- /dev/null
+++ b/examples/fake-tablet.py
@@ -0,0 +1,130 @@
+#!/usr/bin/env python3
+#
+# Fake tablet emulator
+
+import sys
+import libevdev
+from libevdev import InputEvent, InputAbsInfo
+import time
+
+
+def prox_in(x, y, z=0, tilt=(0, 0), pressure=100, distance=0):
+ return [
+ InputEvent(libevdev.EV_ABS.ABS_X, x),
+ InputEvent(libevdev.EV_ABS.ABS_Y, y),
+ InputEvent(libevdev.EV_ABS.ABS_Z, z),
+ # Note: wheel for pen/eraser must be 0
+ InputEvent(libevdev.EV_ABS.ABS_WHEEL, 0),
+ InputEvent(libevdev.EV_ABS.ABS_PRESSURE, pressure),
+ InputEvent(libevdev.EV_ABS.ABS_DISTANCE, distance),
+ InputEvent(libevdev.EV_ABS.ABS_TILT_X, tilt[0]),
+ InputEvent(libevdev.EV_ABS.ABS_TILT_Y, tilt[1]),
+ InputEvent(libevdev.EV_ABS.ABS_MISC, 2083),
+ InputEvent(libevdev.EV_MSC.MSC_SERIAL, 297797542),
+ # Change to BTN_TOOL_RUBBER for the eraser end
+ InputEvent(libevdev.EV_KEY.BTN_TOOL_PEN, 1),
+ InputEvent(libevdev.EV_SYN.SYN_REPORT, 0),
+ ]
+
+
+def prox_out():
+ return [
+ InputEvent(libevdev.EV_ABS.ABS_X, 0),
+ InputEvent(libevdev.EV_ABS.ABS_Y, 0),
+ InputEvent(libevdev.EV_ABS.ABS_Z, 0),
+ InputEvent(libevdev.EV_ABS.ABS_WHEEL, 0),
+ InputEvent(libevdev.EV_ABS.ABS_PRESSURE, 0),
+ InputEvent(libevdev.EV_ABS.ABS_DISTANCE, 0),
+ InputEvent(libevdev.EV_ABS.ABS_TILT_X, 0),
+ InputEvent(libevdev.EV_ABS.ABS_TILT_Y, 0),
+ InputEvent(libevdev.EV_ABS.ABS_MISC, 0),
+ InputEvent(libevdev.EV_MSC.MSC_SERIAL, 297797542),
+ InputEvent(libevdev.EV_KEY.BTN_TOOL_PEN, 0),
+ InputEvent(libevdev.EV_SYN.SYN_REPORT, 0),
+ ]
+
+
+def motion(x, y, z=0, tilt=(0, 0), pressure=100, distance=0):
+ return [
+ InputEvent(libevdev.EV_ABS.ABS_X, x),
+ InputEvent(libevdev.EV_ABS.ABS_Y, y),
+ InputEvent(libevdev.EV_ABS.ABS_Z, z),
+ InputEvent(libevdev.EV_ABS.ABS_WHEEL, 0),
+ InputEvent(libevdev.EV_ABS.ABS_PRESSURE, pressure),
+ InputEvent(libevdev.EV_ABS.ABS_DISTANCE, distance),
+ InputEvent(libevdev.EV_ABS.ABS_TILT_X, tilt[0]),
+ InputEvent(libevdev.EV_ABS.ABS_TILT_Y, tilt[1]),
+ InputEvent(libevdev.EV_MSC.MSC_SERIAL, 297797542),
+ InputEvent(libevdev.EV_SYN.SYN_REPORT, 0),
+ ]
+
+
+def main(args):
+ dev = libevdev.Device()
+ dev.name = "Wacom Cintiq Pro 16 Pen"
+ dev.id = {'bustype': 0x3,
+ 'vendor': 0x56a,
+ 'product': 0x350,
+ 'version': 0xb}
+ dev.enable(libevdev.EV_KEY.BTN_TOOL_PEN)
+ dev.enable(libevdev.EV_KEY.BTN_TOOL_RUBBER)
+ dev.enable(libevdev.EV_KEY.BTN_TOOL_BRUSH)
+ dev.enable(libevdev.EV_KEY.BTN_TOOL_PENCIL)
+ dev.enable(libevdev.EV_KEY.BTN_TOOL_AIRBRUSH)
+ dev.enable(libevdev.EV_KEY.BTN_TOUCH)
+ dev.enable(libevdev.EV_KEY.BTN_STYLUS)
+ dev.enable(libevdev.EV_KEY.BTN_STYLUS2)
+ dev.enable(libevdev.EV_KEY.BTN_STYLUS3)
+ dev.enable(libevdev.EV_MSC.MSC_SERIAL)
+ dev.enable(libevdev.INPUT_PROP_DIRECT)
+
+ a = InputAbsInfo(minimum=0, maximum=69920, resolution=200)
+ dev.enable(libevdev.EV_ABS.ABS_X, data=a)
+ a = InputAbsInfo(minimum=0, maximum=39980, resolution=200)
+ dev.enable(libevdev.EV_ABS.ABS_Y, data=a)
+ a = InputAbsInfo(minimum=-900, maximum=899, resolution=287)
+ dev.enable(libevdev.EV_ABS.ABS_Z, data=a)
+ a = InputAbsInfo(minimum=0, maximum=2047)
+ dev.enable(libevdev.EV_ABS.ABS_WHEEL, data=a)
+ a = InputAbsInfo(minimum=0, maximum=8196)
+ dev.enable(libevdev.EV_ABS.ABS_PRESSURE, data=a)
+ a = InputAbsInfo(minimum=0, maximum=63)
+ dev.enable(libevdev.EV_ABS.ABS_DISTANCE, data=a)
+ a = InputAbsInfo(minimum=-64, maximum=63, resolution=57)
+ dev.enable(libevdev.EV_ABS.ABS_TILT_X, data=a)
+ dev.enable(libevdev.EV_ABS.ABS_TILT_Y, data=a)
+ a = InputAbsInfo(minimum=0, maximum=0)
+ dev.enable(libevdev.EV_ABS.ABS_MISC, data=a)
+
+ try:
+ uinput = dev.create_uinput_device()
+ print("New device at {} ({})".format(uinput.devnode, uinput.syspath))
+
+ # Sleep for a bit so udev, libinput, Xorg, Wayland, ... all have had
+ # a chance to see the device and initialize it. Otherwise the event
+ # will be sent by the kernel but nothing is ready to listen to the
+ # device yet.
+ time.sleep(1)
+
+ x, y = 3000, 5000
+
+ events = prox_in(x, y)
+ uinput.send_events(events)
+ time.sleep(0.012)
+
+ for _ in range(5):
+ x += 1000
+ y += 1000
+ events = motion(x, y)
+ uinput.send_events(events)
+ time.sleep(0.012)
+
+ events = prox_out()
+ uinput.send_events(events)
+ time.sleep(0.012)
+ except OSError as e:
+ print(e)
+
+
+if __name__ == "__main__":
+ main(sys.argv)
--
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