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ReVoltVPN/lib/components/clock_display.dart
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Dart

import 'dart:math';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:paladinvpn/logic/session_timer.dart';
/// ClockDisplay renders inside the ConnectButton circle when the VPN is active.
///
/// Shows a circular quota-progress arc, a glowing countdown timer, and the
/// current transfer speed — all sized to fit within the 260px button.
class ClockDisplay extends StatelessWidget {
const ClockDisplay({super.key});
static const Color _cyanGlow = Color(0xFF00E5FF);
@override
Widget build(BuildContext context) {
return Consumer<SessionTimer>(
builder: (context, timer, _) {
return SizedBox(
width: 200,
height: 200,
child: Stack(
alignment: Alignment.center,
children: [
// Background quota track ring
const CustomPaint(
size: Size(200, 200),
painter: _ArcPainter(
progress: 1.0,
color: Color.fromRGBO(74, 85, 104, 0.2),
strokeWidth: 4,
),
),
// Live quota progress ring
TweenAnimationBuilder<double>(
tween: Tween(begin: 0, end: timer.progress),
duration: const Duration(milliseconds: 400),
builder: (context, value, _) => CustomPaint(
size: const Size(200, 200),
painter: _ArcPainter(
progress: value,
color: _cyanGlow,
strokeWidth: 4,
glow: true,
),
),
),
// Center content: countdown + speed
Column(
mainAxisSize: MainAxisSize.min,
children: [
// Glowing countdown timer
Text(
timer.formatted,
style: const TextStyle(
fontSize: 40,
fontWeight: FontWeight.w800,
color: Colors.white,
letterSpacing: 2,
shadows: [
Shadow(
color: Color.fromRGBO(0, 229, 255, 0.5),
blurRadius: 16,
),
],
),
),
const SizedBox(height: 6),
// Speed indicator
Row(
mainAxisSize: MainAxisSize.min,
children: [
const Icon(Icons.speed, color: Colors.white54, size: 14),
const SizedBox(width: 4),
Text(
'${timer.currentSpeedKbps.toStringAsFixed(1)} KB/s',
style: const TextStyle(
fontSize: 12,
color: Colors.white54,
fontWeight: FontWeight.w500,
),
),
],
),
],
),
],
),
);
},
);
}
}
class _ArcPainter extends CustomPainter {
final double progress;
final Color color;
final double strokeWidth;
final bool glow;
const _ArcPainter({
required this.progress,
required this.color,
this.strokeWidth = 4,
this.glow = false,
});
@override
void paint(Canvas canvas, Size size) {
final rect = Rect.fromLTWH(0, 0, size.width, size.height)
.deflate(strokeWidth / 2);
if (glow) {
final glowPaint = Paint()
..color = const Color.fromRGBO(0, 229, 255, 0.15)
..style = PaintingStyle.stroke
..strokeWidth = strokeWidth + 8
..strokeCap = StrokeCap.round
..maskFilter = const MaskFilter.blur(BlurStyle.normal, 8);
canvas.drawArc(rect, -pi / 2, 2 * pi * progress, false, glowPaint);
}
final paint = Paint()
..color = color
..style = PaintingStyle.stroke
..strokeWidth = strokeWidth
..strokeCap = StrokeCap.round;
canvas.drawArc(rect, -pi / 2, 2 * pi * progress, false, paint);
}
@override
bool shouldRepaint(covariant _ArcPainter old) =>
old.progress != progress || old.color != color;
}