qtile: scale down bar on HD monitors

qtile/.config/qtile/monitors.py

@@ -0,0 +1,13 @@
+import re
+import subprocess
+from collections import namedtuple
+
+Monitor = namedtuple('Monitor', ["name", "width", "height"])
+
+monitor_line = re.compile(r"^ *[0-9]+: +[+*]*([-A-Za-z0-9]+) +([0-9]+)/([0-9]+)x([0-9]+)/([0-9]+)\+([0-9]+)\+([0-9]+) +([-A-Za-z0-9]+)")
+
+def list_monitors():
+    p = subprocess.run(["xrandr", "--listmonitors"], capture_output=True, encoding='UTF-8')
+    return [Monitor(name=m.group(1), width=int(m.group(2)), height=int(m.group(4)))
+            for m in map(monitor_line.match, p.stdout.split('\n'))
+            if m is not None]