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extract SparklineCanvas component from 5 applets

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This commit is contained in:
Damocles 2026-04-24 00:43:40 +02:00
parent 732a14e5cb
commit 8d76df6ef5
8 changed files with 178 additions and 233 deletions
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95
shell/applets/BatteryApplet.qml
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@ -87,91 +87,28 @@ Column {
}
// 24h history sparkline (area chart)
Canvas {
id: _sparkline
SparklineCanvas {
anchors.left: parent.left
anchors.leftMargin: 12
anchors.right: parent.right
anchors.rightMargin: 12
height: 44
property var _hist: S.BatteryService.history
property color _col: root._stateColor
on_HistChanged: if (root.active)
requestPaint()
on_ColChanged: if (root.active)
requestPaint()
onVisibleChanged: if (visible)
requestPaint()
onPaint: {
const ctx = getContext("2d");
if (!ctx)
return;
ctx.clearRect(0, 0, width, height);
const d = _hist;
if (d.length < 2)
return;
const maxSamples = 1440;
const xScale = width / maxSamples;
const xOffset = (maxSamples - d.length) * xScale;
// Background tint
ctx.fillStyle = Qt.rgba(_col.r, _col.g, _col.b, 0.07).toString();
ctx.fillRect(0, 0, width, height);
// Warning threshold line
const warnY = height - height * (S.BatteryService.warnThresh / 100);
ctx.strokeStyle = S.Theme.base0A.toString();
ctx.globalAlpha = 0.3;
ctx.lineWidth = 1;
ctx.setLineDash([3, 3]);
ctx.beginPath();
ctx.moveTo(0, warnY);
ctx.lineTo(width, warnY);
ctx.stroke();
// Critical threshold line
const critY = height - height * (S.BatteryService.critThresh / 100);
ctx.strokeStyle = S.Theme.base08.toString();
ctx.beginPath();
ctx.moveTo(0, critY);
ctx.lineTo(width, critY);
ctx.stroke();
ctx.setLineDash([]);
ctx.globalAlpha = 1.0;
// Filled area under the curve
ctx.beginPath();
ctx.moveTo(xOffset, height);
for (let i = 0; i < d.length; i++) {
const x = xOffset + i * xScale;
const y = height - height * (d[i] / 100);
ctx.lineTo(x, y);
history: S.BatteryService.history
color: root._stateColor
active: root.active
maxSamples: 1440
backgroundTint: 0.07
areaMode: true
thresholds: [
{
value: S.BatteryService.warnThresh,
color: S.Theme.base0A
},
{
value: S.BatteryService.critThresh,
color: S.Theme.base08
}
ctx.lineTo(xOffset + (d.length - 1) * xScale, height);
ctx.closePath();
ctx.fillStyle = Qt.rgba(_col.r, _col.g, _col.b, 0.18).toString();
ctx.fill();
// Top line
ctx.beginPath();
for (let i = 0; i < d.length; i++) {
const x = xOffset + i * xScale;
const y = height - height * (d[i] / 100);
if (i === 0)
ctx.moveTo(x, y);
else
ctx.lineTo(x, y);
}
ctx.strokeStyle = _col.toString();
ctx.lineWidth = 1.5;
ctx.stroke();
}
]
}
// Footer: thresholds + time label