import 'package:filcnaplo/models/settings.dart'; import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; import 'package:provider/provider.dart'; class GoalInput extends StatelessWidget { const GoalInput( {Key? key, required this.currentAverage, required this.value, required this.onChanged}) : super(key: key); final double currentAverage; final double value; final void Function(double value) onChanged; void offsetToValue(Offset offset, Size size) { double v = ((offset.dx / size.width * 4 + 1) * 10).round() / 10; v = v.clamp(1.5, 5); v = v.clamp(((currentAverage * 10).round() / 10), 5); setValue(v); } void setValue(double v) { if (v != value) { HapticFeedback.lightImpact(); } onChanged(v); } @override Widget build(BuildContext context) { SettingsProvider settings = Provider.of(context); List presets = [2, 3, 4, 5]; presets = presets.where((e) => gradeToAvg(e) > currentAverage).toList(); return Column( mainAxisSize: MainAxisSize.min, children: [ LayoutBuilder(builder: (context, size) { return GestureDetector( onTapDown: (details) { offsetToValue(details.localPosition, size.biggest); }, onHorizontalDragUpdate: (details) { offsetToValue(details.localPosition, size.biggest); }, child: SizedBox( height: 32.0, width: double.infinity, child: Padding( padding: const EdgeInsets.only(right: 20.0), child: CustomPaint( painter: GoalSliderPainter( value: (value - 1) / 4, settings: settings), ), ), ), ); }), const SizedBox(height: 12.0), Row( mainAxisAlignment: MainAxisAlignment.center, children: presets.map((e) { final pv = (value * 10).round() / 10; final selected = gradeToAvg(e) == pv; return Padding( padding: const EdgeInsets.symmetric(horizontal: 12.0), child: Container( decoration: BoxDecoration( borderRadius: BorderRadius.circular(99.0), color: gradeColor(e, settings).withOpacity(selected ? 1.0 : 0.2), border: Border.all(color: gradeColor(e, settings), width: 4), ), child: Material( type: MaterialType.transparency, child: InkWell( borderRadius: BorderRadius.circular(99.0), onTap: () => setValue(gradeToAvg(e)), child: Padding( padding: const EdgeInsets.symmetric( vertical: 2.0, horizontal: 24.0), child: Text( e.toString(), style: TextStyle( color: selected ? Colors.white : gradeColor(e, settings), fontWeight: FontWeight.bold, fontSize: 24.0, ), ), ), ), ), ), ); }).toList(), ) ], ); } } class GoalSliderPainter extends CustomPainter { final double value; final SettingsProvider settings; GoalSliderPainter({required this.value, required this.settings}); @override void paint(Canvas canvas, Size size) { final radius = size.height / 2; const cpadding = 4; final rect = Rect.fromLTWH(0, 0, size.width + radius, size.height); final vrect = Rect.fromLTWH(0, 0, size.width * value + radius, size.height); canvas.drawRRect( RRect.fromRectAndRadius( rect, const Radius.circular(99.0), ), Paint()..color = Colors.black.withOpacity(.1), ); canvas.drawRRect( RRect.fromRectAndRadius( vrect, const Radius.circular(99.0), ), Paint() ..shader = LinearGradient(colors: [ settings.gradeColors[0], settings.gradeColors[1], settings.gradeColors[2], settings.gradeColors[3], settings.gradeColors[4], ]).createShader(rect), ); canvas.drawOval( Rect.fromCircle( center: Offset(size.width * value, size.height / 2), radius: radius - cpadding), Paint()..color = Colors.white, ); for (int i = 1; i < 4; i++) { canvas.drawOval( Rect.fromCircle( center: Offset(size.width / 4 * i, size.height / 2), radius: 4), Paint()..color = Colors.white.withOpacity(.5), ); } } @override bool shouldRepaint(GoalSliderPainter oldDelegate) { return oldDelegate.value != value; } } double gradeToAvg(int grade) { return grade - 0.5; } Color gradeColor(int grade, SettingsProvider settings) { // return [ // const Color(0xffFF3B30), // const Color(0xffFF9F0A), // const Color(0xffFFD60A), // const Color(0xff34C759), // const Color(0xff247665), // ].elementAt(grade.clamp(1, 5) - 1); return [ settings.gradeColors[0], settings.gradeColors[1], settings.gradeColors[2], settings.gradeColors[3], settings.gradeColors[4], ].elementAt(grade.clamp(1, 5) - 1); }