304 lines
12 KiB
Dart
304 lines
12 KiB
Dart
import 'package:fl_chart/fl_chart.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import '../../config/statistics.dart';
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import '../meal_page_text/secondary_big_text_component.dart';
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import '../meal_page_text/secondary_text_component.dart';
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import '../meal_page_text/title_component.dart';
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class ChartComponent extends StatelessWidget {
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const ChartComponent({Key? key}) : super(key: key);
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BarTouchData get barTouchData => BarTouchData(
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enabled: false,
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touchTooltipData: BarTouchTooltipData(
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tooltipBgColor: Colors.transparent,
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tooltipPadding: EdgeInsets.zero,
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tooltipMargin: 4,
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getTooltipItem: (
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BarChartGroupData group,
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int groupIndex,
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BarChartRodData rod,
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int rodIndex,
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) {
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return BarTooltipItem(
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rod.toY.round().toString(),
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const TextStyle(
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color: Colors.transparent,
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fontWeight: FontWeight.bold,
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),
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);
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},
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),
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);
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Widget getTitles(double value, TitleMeta meta) {
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const style = TextStyle(
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color: Colors.orange,
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fontWeight: FontWeight.bold,
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fontSize: 14,
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);
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String text;
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switch (value.toInt()) {
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case 0:
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text = 'M';
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break;
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case 1:
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text = 'T';
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break;
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case 2:
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text = 'W';
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break;
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case 3:
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text = 'T';
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break;
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case 4:
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text = 'F';
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break;
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case 5:
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text = 'S';
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break;
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case 6:
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text = 'S';
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break;
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default:
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text = '';
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break;
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}
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return SideTitleWidget(
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axisSide: meta.axisSide,
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space: 4,
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child: Text(text, style: style),
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);
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}
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FlTitlesData get titlesData => FlTitlesData(
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show: true,
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bottomTitles: AxisTitles(
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sideTitles: SideTitles(
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showTitles: true,
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reservedSize: 30,
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getTitlesWidget: getTitles,
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),
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),
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topTitles: AxisTitles(
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sideTitles: SideTitles(showTitles: false),
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),
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rightTitles: AxisTitles(
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sideTitles: SideTitles(
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showTitles: false,
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),
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),
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leftTitles: AxisTitles(
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sideTitles: SideTitles(
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showTitles: true,
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getTitlesWidget: (value, _) {
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// Return a custom widget for each axis value
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return Container(
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constraints:
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const BoxConstraints.tightFor(width: double.infinity),
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child: Padding(
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padding: const EdgeInsets.only(right: 3.0),
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// Adjust the margin value as needed
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child: FittedBox(
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fit: BoxFit.scaleDown,
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alignment: Alignment.centerLeft,
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child: Text(
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value.toInt().toString(),
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style: const TextStyle(
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color: Colors.orange,
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fontWeight: FontWeight.bold,
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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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FlBorderData get borderData => FlBorderData(
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show: true, // Set to true to display the chart border
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border: const Border(
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bottom: BorderSide(color: Colors.black, width: 1),
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left:
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BorderSide(color: Colors.black, width: 1), // Hide the left border
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),
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);
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@override
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Widget build(BuildContext context) {
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return Container(
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decoration: const BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.all(Radius.circular(8))),
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child: Padding(
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padding:
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const EdgeInsets.symmetric(vertical: 8, horizontal: 16),
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child: Column(
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children: [
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ValueListenableBuilder(
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valueListenable: StatisticsService
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.instance.dailyAverageForCurrentWeek,
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builder: (context, value, child) {
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return SizedBox(
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height: 100,
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width: 400,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const TitleComponent("Kalorien"),
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const SizedBox(
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height: 10,
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),
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const SecondaryTextComponent(
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"Durchschnittlich",
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null
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),
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SecondaryBigTextComponent(
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"${value.toString()} kcal/Tag"),
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],
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),
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);
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},
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),
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ValueListenableBuilder(
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valueListenable:
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StatisticsService.instance.barChartData,
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builder: (context, value, child) {
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return SizedBox(
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height: 300,
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SizedBox(
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height: 15,
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// Adjust the height of the legend as needed
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child: Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Container(
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margin: const EdgeInsets.symmetric(
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horizontal: 8.0),
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// Adjust the spacing between legend items
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child: Row(
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children: [
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Container(
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width: 12,
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height: 12,
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decoration: const BoxDecoration(
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color: Colors.red,
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// Use the color of the first bar rod for the legend item
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shape: BoxShape.circle,
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),
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),
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const SizedBox(width: 4.0),
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// Adjust the spacing between the color indicator and the legend label
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const Text(
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'Frühstück',
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// Replace with your desired legend label
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style: TextStyle(
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fontSize:
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12), // Adjust the font size of the legend labels
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),
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],
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),
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),
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Container(
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margin: const EdgeInsets.symmetric(
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horizontal: 8.0),
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// Adjust the spacing between legend items
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child: Row(
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children: [
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Container(
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width: 12,
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height: 12,
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decoration: const BoxDecoration(
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color: Colors.green,
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// Use the color of the first bar rod for the legend item
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shape: BoxShape.circle,
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),
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),
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const SizedBox(width: 4.0),
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// Adjust the spacing between the color indicator and the legend label
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const Text(
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'Mittagessen',
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// Replace with your desired legend label
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style: TextStyle(
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fontSize:
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12), // Adjust the font size of the legend labels
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),
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],
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),
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),
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Container(
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margin: const EdgeInsets.symmetric(
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horizontal: 8.0),
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// Adjust the spacing between legend items
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child: Row(
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children: [
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Container(
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width: 12,
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height: 12,
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decoration: const BoxDecoration(
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color: Colors.yellow,
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// Use the color of the first bar rod for the legend item
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shape: BoxShape.circle,
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),
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),
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const SizedBox(width: 4.0),
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// Adjust the spacing between the color indicator and the legend label
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const Text(
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'Abendessen',
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// Replace with your desired legend label
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style: TextStyle(
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fontSize:
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12), // Adjust the font size of the legend labels
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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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Container(
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margin:
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const EdgeInsets.fromLTRB(0, 24, 0, 0),
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height: 250,
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child: BarChart(
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BarChartData(
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barTouchData: barTouchData,
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titlesData: titlesData,
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borderData: borderData,
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barGroups: value,
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gridData: FlGridData(show: false),
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alignment: BarChartAlignment.spaceAround,
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extraLinesData: ExtraLinesData(
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horizontalLines: [
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HorizontalLine(
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y: StatisticsService.instance.getCaloryTargetForOneDay(), // Specify the y-value where you want the line to be positioned
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color: Colors.black, // Change the color as per your requirement
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strokeWidth: 2, // Adjust the width as needed
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dashArray: [3, 2],
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label: HorizontalLineLabel(
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show: true,
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labelResolver: (x) => "Zielwert"
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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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);
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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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