mirror of
https://github.com/kuhyx/testsAndMisc.git
synced 2026-11-12 18:10:56 +01:00
Krzysztof kuhy Rudnicki
d502580e3f
Six text-free styles (gradient, flow/Voronoi, habit heatmap, shutdown clock, Earth day/night, plasma) replace the white i3 root. A 15-minute systemd user timer picks a new random style per monitor every 3 hours, unlike its previous one and the other monitor's; live styles refresh in between. Also syncs i3/config with the live config and prunes the oldest evidence artifact for the 60-file cap. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WzxdWX51FMD58yKUC1eYWf
89 lines
2.8 KiB
Python
89 lines
2.8 KiB
Python
"""One timer tick: rotate or refresh the background, then remember it."""
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from __future__ import annotations
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from dataclasses import replace
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import json
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import os
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from pathlib import Path
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import random
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import re
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import subprocess
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from typing import cast
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import numpy as np
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from python_pkg.wallpaper_rotator import _paint
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from python_pkg.wallpaper_rotator._context import DEFAULT_CACHE, RenderContext
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from python_pkg.wallpaper_rotator._rotation import State, plan
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from python_pkg.wallpaper_rotator.styles import STYLES
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ROOT_IMAGE = DEFAULT_CACHE / "root.png"
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STATE_FILE = DEFAULT_CACHE / "state.json"
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# X writes its server pid to <tmp>/.X<display>-lock.
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_X_LOCK_DIR = Path("/") / "tmp"
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_PIXMAP = re.compile(r"#\s*(0x[0-9a-f]+)")
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def i3_outputs() -> list[dict[str, object]]:
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"""Return ``i3-msg -t get_outputs`` as parsed JSON."""
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out = subprocess.run(
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["/usr/bin/i3-msg", "-t", "get_outputs"],
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check=True,
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capture_output=True,
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text=True,
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).stdout
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return cast("list[dict[str, object]]", json.loads(out))
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def root_identity(display: str | None = None) -> str | None:
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"""Identify the root pixmap now shown: X server pid plus pixmap id.
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The pid (from the X lock file) changes with every X session, so a fresh
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login never matches a pixmap id saved in an earlier one. ``None`` means
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no background is set at all.
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"""
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display = display or os.environ.get("DISPLAY", ":0")
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number = display.lstrip(":").split(".")[0]
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try:
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server = (_X_LOCK_DIR / f".X{number}-lock").read_text(encoding="utf-8").strip()
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except OSError:
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server = "?"
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prop = subprocess.run(
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["/usr/bin/xprop", "-root", "_XROOTPMAP_ID"],
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check=False,
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capture_output=True,
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text=True,
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).stdout
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found = _PIXMAP.search(prop)
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return f"{server}:{found.group(1)}" if found else None
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def tick(rng: random.Random | None = None) -> bool:
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"""Run one tick; return whether the background was repainted."""
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rects = _paint.layout(i3_outputs())
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ctx = RenderContext.live()
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names = [name for name, style in STYLES.items() if style.available(ctx)]
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state, paint = plan(
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State.load(STATE_FILE),
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list(rects),
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ctx.now,
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names,
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rng or random.SystemRandom(),
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root_id=root_identity(),
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)
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if paint:
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images = {
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output: STYLES[pick.style].render(
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ctx,
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(rects[output][2], rects[output][3]),
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np.random.default_rng(pick.seed),
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)
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for output, pick in state.picks.items()
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if output in rects
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}
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_paint.apply(_paint.compose(rects, images), ROOT_IMAGE)
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state = replace(state, root_id=root_identity())
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state.save(STATE_FILE)
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return paint
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