Honey
132e133b1d
The epd4in0e panel's palette has no gray at all (just black/white/ yellow/red/blue/green -- see epd4in0e.py's putpalette), so any gray RGB fill gets Floyd-Steinberg dithered into a black/white checkerboard across the whole glyph body. At the small font sizes most of these screens use (Navidrome's artist/album/genre/source lines, Departures' direction/platform columns, Weather's description/forecast labels, Clock's date line, the placeholder messages), that reads as blurry, half-rendered text -- same root cause already fixed in Journey. Switched every gray fill/outline to solid black across navidrome.py, weather.py, departures.py, clock.py, and picture.py. Left the intentionally-faint row-divider hairlines (228,228,228) alone -- those are meant to almost disappear, not readable text. Removed departures.py's now-unused MUTED constant.
206 lines
7.8 KiB
Python
206 lines
7.8 KiB
Python
"""Current weather + daily forecast via Open-Meteo (free, no API key)."""
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import logging
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from datetime import date
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import requests
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from PIL import Image, ImageDraw
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from screens.base import Screen
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from screens.render_utils import load_font, text_width
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from screens.weather_icons import WMO_CODES, draw_weather_icon
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logger = logging.getLogger(__name__)
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HTTP_TIMEOUT = 10
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GEOCODE_URL = "https://geocoding-api.open-meteo.com/v1/search"
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FORECAST_DAY_CHOICES = (3, 5, 7)
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WEEKDAY_ABBR_DE = ["Mo", "Di", "Mi", "Do", "Fr", "Sa", "So"]
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class WeatherScreen(Screen):
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id = "weather"
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display_name = "Weather"
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poll_interval = 1800 # fallback default (30 min) if settings has no update_minutes yet
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def default_settings(self) -> dict:
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return {"city": "", "latitude": None, "longitude": None, "forecast_days": 3, "update_minutes": 30}
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def get_poll_interval(self, settings: dict) -> int:
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raw = settings.get("update_minutes")
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try:
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# `raw or 30` would also catch a legitimate 0 (falsy) and silently
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# replace it with 30 instead of clamping to the 1-minute floor
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# below -- only fall back to the default when it's genuinely unset.
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minutes = int(raw) if raw is not None else 30
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except (TypeError, ValueError):
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minutes = 30
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return max(1, minutes) * 60
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def geocode(self, city: str):
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"""Resolve a city name to coordinates via Open-Meteo's free geocoding
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API (no key needed). Returns {"latitude", "longitude", "label"} or
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None if nothing matched."""
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response = requests.get(
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GEOCODE_URL,
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params={"name": city, "count": 1, "language": "de"},
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timeout=HTTP_TIMEOUT,
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)
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response.raise_for_status()
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results = response.json().get("results") or []
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if not results:
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return None
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top = results[0]
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label_parts = [top.get("name"), top.get("admin1"), top.get("country")]
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return {
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"latitude": top["latitude"],
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"longitude": top["longitude"],
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"label": ", ".join(p for p in label_parts if p),
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}
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def check(self, settings: dict):
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lat = settings.get("latitude")
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lon = settings.get("longitude")
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if lat is None or lon is None:
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logger.warning("Weather screen has no latitude/longitude configured")
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return None
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forecast_days = settings.get("forecast_days", 3)
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if forecast_days not in FORECAST_DAY_CHOICES:
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forecast_days = 3
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response = requests.get(
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"https://api.open-meteo.com/v1/forecast",
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params={
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"latitude": lat,
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"longitude": lon,
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"current_weather": "true",
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"daily": "weather_code,temperature_2m_max,temperature_2m_min",
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"forecast_days": forecast_days,
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"timezone": "auto",
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},
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timeout=HTTP_TIMEOUT,
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)
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response.raise_for_status()
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payload = response.json()
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current = payload.get("current_weather") or {}
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if "temperature" not in current:
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return None
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code = int(current.get("weathercode", -1))
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description, kind = WMO_CODES.get(code, ("Unbekannt", "clear"))
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days = []
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daily = payload.get("daily") or {}
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for i, date_str in enumerate(daily.get("time", [])):
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try:
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weekday = date.fromisoformat(date_str).weekday()
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except ValueError:
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continue
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day_code = int(daily["weather_code"][i])
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_, day_kind = WMO_CODES.get(day_code, ("Unbekannt", "clear"))
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days.append({
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"label": WEEKDAY_ABBR_DE[weekday],
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"kind": day_kind,
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"high": daily["temperature_2m_max"][i],
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"low": daily["temperature_2m_min"][i],
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})
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return {
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"temperature": current["temperature"],
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"windspeed": current.get("windspeed"),
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"description": description,
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"kind": kind,
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"days": days,
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}
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def render(self, state, settings: dict, resolution: tuple[int, int]) -> Image.Image:
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width, height = resolution
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image = Image.new("RGB", (width, height), "white")
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draw = ImageDraw.Draw(image)
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scale = min(width, height)
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if not state:
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font = load_font(size=int(scale * 0.06))
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msg = "Kein Standort konfiguriert" if not (
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settings.get("latitude") and settings.get("longitude")
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) else "Wetterdaten nicht verfügbar"
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mw = text_width(draw, msg, font)
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draw.text(((width - mw) / 2, height / 2), msg, font=font, fill="black")
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return image
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days = state.get("days") or []
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has_forecast = bool(days)
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# Icon + temperature + description, stacked. Sized from `scale`
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# directly (not a guessed fraction of current_h) and measured via
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# actual text bounding boxes, so current_h can be *derived* from
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# what the block actually needs -- rather than picking current_h
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# first and hoping the content fits in it, which overflowed into
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# the forecast row for some font metrics.
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icon_size = scale * (0.24 if has_forecast else 0.5)
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temp_font = load_font(size=int(scale * (0.13 if has_forecast else 0.22)), bold=True)
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desc_font = load_font(size=int(scale * (0.045 if has_forecast else 0.05)))
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temp_str = f"{round(state['temperature'])}°"
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desc = state["description"]
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temp_left, temp_top, temp_right, temp_bottom = draw.textbbox((0, 0), temp_str, font=temp_font)
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temp_h = temp_bottom - temp_top
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desc_left, desc_top, desc_right, desc_bottom = draw.textbbox((0, 0), desc, font=desc_font)
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desc_h = desc_bottom - desc_top
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icon_gap = icon_size * 0.12
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temp_gap = temp_h * 0.4
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block_h = icon_size + icon_gap + temp_h + temp_gap + desc_h
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if has_forecast:
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top_pad = height * 0.04
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bottom_pad = height * 0.035
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current_h = block_h + top_pad + bottom_pad
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block_top = top_pad
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else:
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current_h = height
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block_top = (current_h - block_h) / 2
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icon_cy = block_top + icon_size / 2
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draw_weather_icon(draw, state["kind"], width / 2, icon_cy, icon_size)
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temp_y = block_top + icon_size + icon_gap
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tw = temp_right - temp_left
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draw.text(((width - tw) / 2, temp_y - temp_top), temp_str, font=temp_font, fill="black")
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desc_y = temp_y + temp_h + temp_gap
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dw = desc_right - desc_left
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draw.text(((width - dw) / 2, desc_y - desc_top), desc, font=desc_font, fill="black")
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if has_forecast:
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forecast_y = current_h
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forecast_h = height - forecast_y
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draw.rectangle((width * 0.06, forecast_y, width * 0.94, forecast_y + 2), fill=(0, 0, 0))
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col_w = width / len(days)
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label_font = load_font(size=int(scale * 0.052), bold=True)
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day_temp_font = load_font(size=int(scale * 0.046), bold=True)
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day_icon_size = min(col_w * 0.75, forecast_h * 0.48)
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for i, day in enumerate(days):
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cx = col_w * i + col_w / 2
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y = forecast_y + forecast_h * 0.1
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label = day["label"]
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lw = text_width(draw, label, label_font)
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draw.text((cx - lw / 2, y), label, font=label_font, fill="black")
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y += label_font.size * 1.4
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draw_weather_icon(draw, day["kind"], cx, y + day_icon_size / 2, day_icon_size)
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y += day_icon_size * 1.1
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temps = f"{round(day['high'])}°/{round(day['low'])}°"
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dtw = text_width(draw, temps, day_temp_font)
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draw.text((cx - dtw / 2, y), temps, font=day_temp_font, fill="black")
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return image
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