This commit is contained in:
Martino Ferrari
2026-04-25 22:56:09 +02:00
parent 8b548ba1c2
commit 986f6cd6d8
85 changed files with 11479 additions and 5050 deletions
+105
View File
@@ -0,0 +1,105 @@
import { h } from 'preact';
import { useState, useEffect } from 'preact/hooks';
import { getSignalStore, getMetaStore } from '../lib/stores';
import type { Widget, SignalValue, SignalMeta } from '../lib/types';
const DEFAULT_VALUE: SignalValue = { value: null, quality: 'unknown', ts: null };
function qualityColor(q: string): string {
switch (q) {
case 'good': return '#4ade80';
case 'uncertain': return '#fbbf24';
case 'bad': return '#f87171';
default: return '#6b7280';
}
}
// Arc: -135deg to +135deg (270deg total)
const START_DEG = -135;
const END_DEG = 135;
const TOTAL_DEG = 270;
const cx = 50, cy = 54, r = 38;
function degToRad(deg: number) { return (deg * Math.PI) / 180; }
function polarToXY(deg: number, radius: number) {
const rad = degToRad(deg);
return { x: cx + radius * Math.cos(rad), y: cy + radius * Math.sin(rad) };
}
function arcPath(startDeg: number, endDeg: number, radius: number): string {
const s = polarToXY(startDeg, radius);
const e = polarToXY(endDeg, radius);
const largeArc = endDeg - startDeg > 180 ? 1 : 0;
return `M ${s.x} ${s.y} A ${radius} ${radius} 0 ${largeArc} 1 ${e.x} ${e.y}`;
}
function valueToDeg(v: number, minVal: number, maxVal: number): number {
const clamped = Math.max(minVal, Math.min(maxVal, v));
const frac = maxVal === minVal ? 0 : (clamped - minVal) / (maxVal - minVal);
return START_DEG + frac * TOTAL_DEG;
}
interface Props { widget: Widget; onContextMenu?: (e: MouseEvent) => void; }
export default function Gauge({ widget, onContextMenu }: Props) {
const sigRef = widget.signals[0];
const [sv, setSv] = useState<SignalValue>(DEFAULT_VALUE);
const [meta, setMeta] = useState<SignalMeta | null>(null);
useEffect(() => {
if (!sigRef) return;
const unsubV = getSignalStore(sigRef).subscribe(setSv);
const unsubM = getMetaStore(sigRef).subscribe(setMeta);
return () => { unsubV(); unsubM(); };
}, [sigRef?.ds, sigRef?.name]);
const label = widget.options['label'] ?? sigRef?.name ?? '';
const unit = widget.options['unit'] ?? meta?.unit ?? '';
const minVal = parseFloat(widget.options['min'] ?? String(meta?.displayLow ?? 0));
const maxVal = parseFloat(widget.options['max'] ?? String(meta?.displayHigh ?? 100));
const thresholdLow = widget.options['thresholdLow'] ? parseFloat(widget.options['thresholdLow']) : null;
const thresholdHigh = widget.options['thresholdHigh'] ? parseFloat(widget.options['thresholdHigh']) : null;
const quality = sv.quality;
const rawV = sv.value;
const rawValue: number | null = rawV === null || rawV === undefined ? null
: typeof rawV === 'number' ? rawV : parseFloat(String(rawV));
function displayValue(): string {
if (rawValue === null || isNaN(rawValue)) return '---';
return Number.isFinite(rawValue) ? rawValue.toPrecision(4).replace(/\.?0+$/, '') : String(rawValue);
}
function fillColor(): string {
if (rawValue === null) return '#4a9eff';
if (thresholdHigh !== null && rawValue >= thresholdHigh) return '#ef4444';
if (thresholdLow !== null && rawValue <= thresholdLow) return '#f59e0b';
return '#4a9eff';
}
const needleDeg = rawValue === null ? START_DEG : valueToDeg(rawValue, minVal, maxVal);
const bgPath = arcPath(START_DEG, END_DEG, r);
const fillPath = needleDeg > START_DEG ? arcPath(START_DEG, needleDeg, r) : '';
const needlePos = polarToXY(needleDeg, r - 4);
const fc = fillColor();
return (
<div
class="gauge"
style={`left:${widget.x}px;top:${widget.y}px;width:${widget.w}px;height:${widget.h}px;`}
onContextMenu={onContextMenu}
>
<span class="quality-dot" style={`background:${qualityColor(quality)};`} title={`Quality: ${quality}`} />
<svg viewBox="0 0 100 80" class="gauge-svg">
<path d={bgPath} fill="none" stroke="#2d3748" stroke-width="6" stroke-linecap="round" />
{fillPath && (
<path d={fillPath} fill="none" stroke={fc} stroke-width="6" stroke-linecap="round" />
)}
<circle cx={needlePos.x} cy={needlePos.y} r="3" fill={fc} />
<text x={cx} y={cy + 10} text-anchor="middle" class="gauge-value">{displayValue()}</text>
{unit && <text x={cx} y={cy + 20} text-anchor="middle" class="gauge-unit">{unit}</text>}
<text x="12" y="76" text-anchor="middle" class="gauge-range">{minVal}</text>
<text x="88" y="76" text-anchor="middle" class="gauge-range">{maxVal}</text>
</svg>
{label && <div class="gauge-label">{label}</div>}
</div>
);
}