init

.gitignore

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+/.idea/

LICENSE

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README.md

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+# RotateScreen
+
+## Further ideas
+
+```python
+def get_sensor_orientation():
+    """
+    Get rotation from `monitor-sensor`.
+    Example:
+    - stdout: === Has accelerometer (orientation: left-up)
+    - stdout:     Accelerometer orientation changed: left-up
+    """
+```

de-p1st-rotate.py

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+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+import configparser
+import subprocess
+import re
+from pathlib import Path
+from typing import NamedTuple
+
+orientations = ['normal', 'right', 'inverted', 'left']
+
+
+class Screen(NamedTuple):
+    name: str
+    devices: list[str]
+
+
+def main():
+    rotate_clockwise()
+
+
+def rotate_clockwise():
+    cfg = get_cfg()
+
+    # screens from cfg that are connected
+    screens = [Screen(name=name, devices=list(cfg[name].values()))
+               for name in cfg
+               if name != cfg.default_section
+               and is_connected(name)]
+
+    if len(screens) == 0:
+        raise Exception('None of the configured screens are connected.')
+
+    current_orientation = get_current_orientation(screens[0].name)
+    next_orientation = orientations[(orientations.index(current_orientation) + 1) % len(orientations)]
+
+    for screen in screens:
+        rotate(screen, next_orientation)
+
+
+def get_cfg() -> configparser.ConfigParser:
+    config: configparser.ConfigParser = configparser.ConfigParser()
+    config.read(get_cfg_path())
+    return config
+
+
+def get_cfg_path() -> Path:
+    global_path = Path('/etc/rotate-screen.cfg')
+    if global_path.exists():
+        return global_path
+
+    local_path = Path('example.cfg')
+    if local_path.exists():
+        return local_path
+
+    raise Exception('No configuration file found.')
+
+
+def rotate(screen: Screen, orientation):
+    execute(['xrandr', '--output', screen.name, '--rotate', orientation])
+    for device in screen.devices:
+        execute(['xrandr', '--map-to-output', device, screen.name])
+
+
+def get_current_orientation(screen: str):
+    """
+    @precond: is_connected(screen) = True
+
+    Example:
+    - stdout includes line: eDP connected primary 2880x1620+0+0 (0x55) normal (normal left inverted right x axis y axis) 344mm x 194mm
+    - screen: eDP
+    - returns: normal
+    """
+    stdout = execute(['xrandr', '--query', '--verbose'])
+    pattern = re.compile(rf'^({re.escape(screen)}\s.*)$', flags=re.MULTILINE)
+    match = pattern.search(stdout)
+    if match is None: raise Exception(f'Did not find screen {screen} in stdout:\n{stdout}')
+    line = match.group(1)
+    return line.rsplit()[5]
+
+
+def is_connected(screen: str):
+    """
+    Example:
+    - stdout includes line: eDP connected primary 2880x1620+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
+    - returns: True
+    """
+    stdout = execute(['xrandr'])
+    pattern = re.compile(rf'^({re.escape(screen)}\sconnected\s.*)$', flags=re.MULTILINE)
+    match = pattern.search(stdout)
+    return match is not None
+
+
+def execute(command: list[str]) -> str:
+    """
+    :return: stdout of command execution
+    """
+    completed: subprocess.CompletedProcess = subprocess.run(
+        command,
+        capture_output=True,
+        text=True,
+    )
+    if completed.returncode != 0:
+        raise Exception(f'Exit Code: {completed.returncode}\n'
+                        f'Stdout:\n{completed.stdout}\n'
+                        f'Stderr:\n{completed.stderr}')
+    return completed.stdout
+
+
+if __name__ == '__main__':
+    main()

example.cfg

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+[eDP]
+
+[HDMI-A-0]
+
+[eDP-1]
+
+1 = pointer:ELAN9038:00 04F3:2A1C
+2 = pointer:ELAN9038:00 04F3:2A1C Stylus Pen (0)
+3 = pointer:ELAN9038:00 04F3:2A1C Stylus Eraser (0)
+
+4 = pointer:ELAN9038:00 04F3:2A1C touch
+5 = pointer:ELAN9038:00 04F3:2A1C stylus
+6 = pointer:ELAN9038:00 04F3:2A1C eraser