153 lines
5.2 KiB
Dart
153 lines
5.2 KiB
Dart
import 'dart:math';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:paladinvpn/logic/session_timer.dart';
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/// ClockDisplay shows a large circular progress ring and the session countdown timer.
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///
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/// The timer text glows electric cyan when a session is active and dims to slate gray when idle.
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class ClockDisplay extends StatelessWidget {
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const ClockDisplay({super.key});
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static const Color _cyanGlow = Color(0xFF00E5FF);
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static const Color _dimSlate = Color(0xFF4A5568);
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@override
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Widget build(BuildContext context) {
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return Consumer<SessionTimer>(
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builder: (context, timer, _) {
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final isLive = timer.isRunning;
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final color = isLive ? _cyanGlow : _dimSlate;
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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SizedBox(
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width: 220,
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height: 220,
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child: Stack(
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alignment: Alignment.center,
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children: [
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// Background track ring representing the maximum capacity of the countdown
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const CustomPaint(
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size: Size(220, 220),
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painter: _ArcPainter(
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progress: 1.0,
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color: Color.fromRGBO(74, 85, 104, 0.2),
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strokeWidth: 4,
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),
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),
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// Live progress ring showing current remaining time relative to the session limit
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if (isLive)
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TweenAnimationBuilder<double>(
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tween: Tween(begin: 0, end: timer.progress),
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duration: const Duration(milliseconds: 400),
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builder: (context, value, _) => CustomPaint(
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size: const Size(220, 220),
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painter: _ArcPainter(
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progress: value,
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color: _cyanGlow,
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strokeWidth: 4,
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glow: true,
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),
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),
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),
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// Monospaced digital clock display for session countdown
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AnimatedDefaultTextStyle(
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duration: const Duration(milliseconds: 300),
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style: TextStyle(
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fontFamily: 'RobotoMono',
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fontSize: 48,
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fontWeight: FontWeight.w300,
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letterSpacing: 4,
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color: color,
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shadows: isLive
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? const [
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Shadow(
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color: Color.fromRGBO(0, 229, 255, 0.6),
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blurRadius: 20,
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),
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Shadow(
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color: Color.fromRGBO(0, 229, 255, 0.3),
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blurRadius: 40,
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),
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]
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: const [],
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),
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child: Text(timer.formatted),
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),
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],
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),
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),
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const SizedBox(height: 12),
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// Subtitle state label below the timer
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AnimatedSwitcher(
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duration: const Duration(milliseconds: 200),
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child: Text(
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isLive ? 'SESSION ACTIVE' : 'STANDBY',
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key: ValueKey(isLive),
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style: TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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letterSpacing: 3,
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color: isLive
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? const Color.fromRGBO(0, 229, 255, 0.7)
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: const Color.fromRGBO(74, 85, 104, 0.7),
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),
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),
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),
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],
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);
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},
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);
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}
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}
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/// A custom painter to render a circular progress arc or background track ring.
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class _ArcPainter extends CustomPainter {
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final double progress;
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final Color color;
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final double strokeWidth;
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final bool glow;
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const _ArcPainter({
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required this.progress,
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required this.color,
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this.strokeWidth = 4,
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this.glow = false,
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});
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@override
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void paint(Canvas canvas, Size size) {
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final rect = Rect.fromLTWH(0, 0, size.width, size.height)
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.deflate(strokeWidth / 2);
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// Optional blurred background paint to create an electric neon glow effect
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if (glow) {
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final glowPaint = Paint()
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..color = const Color.fromRGBO(0, 229, 255, 0.15)
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..style = PaintingStyle.stroke
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..strokeWidth = strokeWidth + 8
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..strokeCap = StrokeCap.round
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..maskFilter = const MaskFilter.blur(BlurStyle.normal, 8);
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canvas.drawArc(rect, -pi / 2, 2 * pi * progress, false, glowPaint);
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}
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// Core progress stroke paint
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final paint = 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.drawArc(rect, -pi / 2, 2 * pi * progress, false, paint);
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}
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@override
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bool shouldRepaint(covariant _ArcPainter old) =>
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old.progress != progress || old.color != color;
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}
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