import 'package:diplomaticquarterapp/uitl/utils_new.dart'; import 'package:diplomaticquarterapp/widgets/charts/app_time_series_chart.dart'; import 'package:fl_chart/fl_chart.dart'; import 'package:flutter/material.dart'; import '../../Constants.dart'; class ShowChart extends StatelessWidget { final String title; final List timeSeries; final int indexes; final double horizontalInterval; ShowChart({this.title, this.timeSeries, this.indexes, this.horizontalInterval = 8.0}); List xAxixs = List(); List yAxixs = List(); double minY = 0; double maxY = 0; double intialY = 0; double lastY = 0; double minX = 0; double maxX = 0; double increasingY = 0; @override Widget build(BuildContext context) { getXaxix(); getYaxix(); getInitialY(); calculateMaxAndMin(); return AspectRatio( aspectRatio: 1.0, child: Container( decoration: const BoxDecoration( borderRadius: BorderRadius.all(Radius.circular(18)), // color: Colors.white, ), child: Stack( children: [ Column( crossAxisAlignment: CrossAxisAlignment.stretch, children: [ Row( crossAxisAlignment: CrossAxisAlignment.start, children: [ Padding( padding: const EdgeInsets.all(16.0), child: Text( title, style: TextStyle(color: Colors.black, fontSize: 16, letterSpacing: -0.64, fontWeight: FontWeight.w600), textAlign: TextAlign.center, ), ), ], ), mHeight(10), Expanded( child: Padding( padding: const EdgeInsets.only(right: 18.0, left: 16.0), child: LineChart( sampleData1(context), swapAnimationDuration: const Duration(milliseconds: 250), ), ), ), const SizedBox( height: 10, ), ], ), ], ), ), ); } getXaxix() { for (int index = 0; index < timeSeries.length; index++) { int mIndex = indexes * index; if (mIndex < timeSeries.length) { xAxixs.add(mIndex); } } } getYaxix() { for (int index = 0; index < timeSeries.length; index++) { int mIndex = indexes * index; if (mIndex < timeSeries.length) { yAxixs.add(timeSeries[mIndex].sales); } } } LineChartData sampleData1(context) { return LineChartData( lineTouchData: LineTouchData( touchTooltipData: LineTouchTooltipData( tooltipBgColor: Colors.white, ), touchCallback: (LineTouchResponse touchResponse) {}, handleBuiltInTouches: true, ), gridData: FlGridData(show: true, drawVerticalLine: true, drawHorizontalLine: true), titlesData: FlTitlesData( bottomTitles: SideTitles( showTitles: true, getTextStyles: (value) => const TextStyle( color: Colors.black, fontSize: 10, ), rotateAngle: -65, margin: 22, getTitles: (value) { if (timeSeries.length < 15) { if (timeSeries.length > value.toInt()) { return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}'; } else return ''; } else { if (value.toInt() == 0) return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}'; if (value.toInt() == timeSeries.length - 1) return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}'; if (xAxixs.contains(value.toInt())) { return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}'; } } return ''; }, ), leftTitles: SideTitles( showTitles: true, getTextStyles: (value) => const TextStyle( color: Colors.black, fontWeight: FontWeight.bold, fontSize: 10, ), interval: null, margin: 12, ), ), borderData: FlBorderData( show: true, border: const Border( bottom: BorderSide( color: Colors.black, width: 0.5, ), left: BorderSide( color: Colors.black, ), right: BorderSide( color: Colors.black, ), top: BorderSide( color: Colors.transparent, ), ), ), minX: minX, maxX: maxX, maxY: lastY + 1, minY: intialY - 0.5, lineBarsData: getData(context), ); } calculateMaxAndMin() { getMaxY(); getMaxX(); getMin(); getMinY(); increasingY = ((maxY - minY) / timeSeries.length - 1) * 15; maxY += increasingY.abs(); minY -= increasingY.abs(); } double getMaxY() { maxY = 0; timeSeries.forEach((element) { double resultValueDouble = element.sales; if (resultValueDouble > maxY) { lastY = resultValueDouble; maxY = resultValueDouble; } }); print("maxY " + lastY.toString()); return maxY.roundToDouble(); } double getInitialY() { try { intialY = timeSeries.first.sales; timeSeries.forEach((element) { double resultValueDouble = element.sales; if (resultValueDouble < intialY) intialY = resultValueDouble; }); } catch (e) { intialY = 0; } print("minY " + intialY.toString()); return intialY.roundToDouble(); } getMaxX() { maxX = (timeSeries.length - 1).toDouble(); } double getMin() { minX = 0; timeSeries.forEach((element) { double resultValueDouble = element.sales; if (resultValueDouble < minX) minX = resultValueDouble; }); return minX.roundToDouble(); } double getMinY() { minY = 0; timeSeries.forEach((element) { double resultValueDouble = element.sales; if (resultValueDouble < minY) minY = resultValueDouble; }); int value = minY.toInt(); return value.toDouble(); } List getData(context) { List spots = List(); for (int index = 0; index < timeSeries.length; index++) { spots.add(FlSpot(index.toDouble(), timeSeries[index].sales)); } final LineChartBarData lineChartBarData1 = LineChartBarData( spots: spots, isCurved: true, colors: [secondaryColor], barWidth: 1.5, isStrokeCapRound: true, dotData: FlDotData( show: false, ), belowBarData: BarAreaData( show: false, ), ); return [ lineChartBarData1, ]; } }