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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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76
shell/applets/TemperatureApplet.qml
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@ -104,72 +104,28 @@ Column {
}
// History sparkline
Canvas {
id: _sparkline
SparklineCanvas {
anchors.left: parent.left
anchors.leftMargin: 12
anchors.right: parent.right
anchors.rightMargin: 12
height: 40
property var _hist: root.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)
return;
const maxSamples = 150;
const bw = width / maxSamples;
// Background tint
ctx.fillStyle = Qt.rgba(_col.r, _col.g, _col.b, 0.08).toString();
ctx.fillRect(0, 0, width, height);
// Warm threshold line
const warmY = height - height * (root.warm / 100);
ctx.strokeStyle = S.Theme.base0A.toString();
ctx.globalAlpha = 0.3;
ctx.lineWidth = 1;
ctx.setLineDash([3, 3]);
ctx.beginPath();
ctx.moveTo(0, warmY);
ctx.lineTo(width, warmY);
ctx.stroke();
// Hot threshold line
const hotY = height - height * (root.hot / 100);
ctx.strokeStyle = S.Theme.base08.toString();
ctx.beginPath();
ctx.moveTo(0, hotY);
ctx.lineTo(width, hotY);
ctx.stroke();
ctx.setLineDash([]);
ctx.globalAlpha = 1.0;
// Bars
const offset = maxSamples - d.length;
for (let i = 0; i < d.length; i++) {
const barH = Math.max(1, height * d[i] / 100);
const barColor = d[i] > root.hot ? S.Theme.base08 : d[i] > root.warm ? S.Theme.base0A : _col;
ctx.fillStyle = barColor.toString();
ctx.fillRect((offset + i) * bw, height - barH, Math.max(1, bw - 0.5), barH);
history: root.history
color: root.stateColor
active: root.active
maxSamples: 150
backgroundTint: 0.08
thresholds: [
{
value: root.warm,
color: S.Theme.base0A
},
{
value: root.hot,
color: S.Theme.base08
}
}
]
colorFunction: v => v > root.hot ? S.Theme.base08 : v > root.warm ? S.Theme.base0A : root.stateColor
}
// Threshold labels