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--- lehrkraefte:blc:plg:stift [2023/11/03 10:48]
Karlheinz Schubert
+++ lehrkraefte:blc:plg:stift [2024/01/20 10:56]
Karlheinz Schubert
@@ Line 19: / Line 19: @@
 Der Stift wird über die kombinierte Bildschirmbreite/~höhe gemappt, was natürlich Mist ist.
-Folgendes Python-Script behebt das Problem, indem es den Stift nur auf den TouchScreen des Laptops (eDP-1) mapped: {{lehrkraefte:sbt:map-pen.py}}.
+Folgendes Python-Script behebt das Problem, indem es den Stift nur auf den TouchScreen des Laptops (eDP-1) mapped:
+{{lehrkraefte:sbt:map-pen.py}}
+<code python>
+#!/usr/bin/env -S python3
+import subprocess
+import re
+import sys
+# configure you devices:
+display_id_wayland = "XWAYLAND0"
+device_names_wayland = ["xwayland-touch", "xwayland-tablet stylus", "xwayland-tablet eraser", "xwayland-tablet cursor"]
+display_id_x11 = "eDP-1"
+device_names_x11 = ["Wacom Pen and multitouch sensor Finger touch", "Wacom Pen and multitouch sensor Pen stylus", "Wacom Pen and multitouch sensor Pen eraser"]
+# end configure
+verbose = False
+def is_wayland():
+    """check sessiontype (Wayland or X11)"""
+    ret_value = cmd("echo $XDG_SESSION_TYPE").lower()
+    return ret_value == "wayland\n"
+def cmd(c):
+    """run shell command and return output, if verbose print command and output"""
+    print(c) if verbose else None
+    res = subprocess.check_output(c, shell=True).decode()
+    print(res) if verbose else None
+    return res
+def get_device_id(device_name):
+    """get xinput device id for device name"""
+    id = re.search(r"id=(\d+)", [l for l in cmd("xinput").split("\n") if re.search(device_name, l)][0]).group(1)
+    return int(id) if id else 0
+def set_xinput_mapping(device_id, display_id):
+    cmd(f"xinput map-to-output {device_id} {display_id}")
+if __name__ == "__main__":
+    try:
+        args = sys.argv[1:]
+        if len(args) > 0 and ("-v" in args or "--verbose" in args):
+            verbose = True
+        else:
+            print("Use -v or --verbose to see xinput output\nSet mappings:")
+        is_wayland()
+        if is_wayland():
+            display_id = display_id_wayland
+            device_names = device_names_wayland
+        else:
+            display_id = display_id_x11
+            device_names = device_names_x11
+        name_length = max([len(n) for n in device_names])
+        for device_name in device_names:
+            device_id = get_device_id(device_name)
+            print(f" - Map {device_name:{name_length}} with Id={device_id:02d} to '{display_id}'")
+            set_xinput_mapping(device_id, display_id)
+    except Exception as e:
+        print(e)
+    print("")
+    input("Press Enter to continue...")
+</code>.
 Mit --verbose (oder -v) aufrufen, um //xinput// Ausgaben zu zeigen.
 </hidden>