Chris
87 lines
2.0 KiB
Dart
87 lines
2.0 KiB
Dart
import 'dart:math' as math;
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import 'package:flutter/material.dart';
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import '../theme.dart';
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class ProgressRing extends StatelessWidget {
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final double percent;
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final double size;
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final double strokeWidth;
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final Color? color;
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final Color? backgroundColor;
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const ProgressRing({
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super.key,
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required this.percent,
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this.size = 36,
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this.strokeWidth = 3,
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this.color,
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this.backgroundColor,
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});
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@override
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Widget build(BuildContext context) {
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final effectiveColor = percent >= 95
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? MirrorTheme.success
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: (color ?? MirrorTheme.accent);
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return SizedBox(
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width: size,
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height: size,
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child: CustomPaint(
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painter: _ProgressRingPainter(
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percent: percent.clamp(0, 100),
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strokeWidth: strokeWidth,
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color: effectiveColor,
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backgroundColor: backgroundColor ?? MirrorTheme.surfaceLight,
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),
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),
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);
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}
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}
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class _ProgressRingPainter extends CustomPainter {
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final double percent;
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final double strokeWidth;
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final Color color;
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final Color backgroundColor;
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_ProgressRingPainter({
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required this.percent,
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required this.strokeWidth,
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required this.color,
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required this.backgroundColor,
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});
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@override
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void paint(Canvas canvas, Size size) {
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final center = Offset(size.width / 2, size.height / 2);
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final radius = (size.width - strokeWidth) / 2;
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final bgPaint = Paint()
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..color = backgroundColor
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..style = PaintingStyle.stroke
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..strokeWidth = strokeWidth;
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final fgPaint = Paint()
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..color = color
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..style = PaintingStyle.stroke
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..strokeWidth = strokeWidth
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..strokeCap = StrokeCap.round;
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canvas.drawCircle(center, radius, bgPaint);
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final sweepAngle = (percent / 100) * 2 * math.pi;
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canvas.drawArc(
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Rect.fromCircle(center: center, radius: radius),
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-math.pi / 2,
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sweepAngle,
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false,
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fgPaint,
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);
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}
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@override
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bool shouldRepaint(_ProgressRingPainter oldDelegate) =>
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oldDelegate.percent != percent || oldDelegate.color != color;
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}
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