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268 lines
7.4 KiB
Dart
268 lines
7.4 KiB
Dart
import 'package:diplomaticquarterapp/uitl/utils_new.dart';
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import 'package:diplomaticquarterapp/widgets/charts/app_time_series_chart.dart';
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import 'package:fl_chart/fl_chart.dart';
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import 'package:flutter/material.dart';
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import '../../Constants.dart';
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class ShowChart extends StatelessWidget {
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final String title;
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final List<TimeSeriesSales2> timeSeries;
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final int indexes;
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final double horizontalInterval;
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final bool isWeeklyOrMonthly;
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ShowChart({this.title, this.timeSeries, this.indexes, this.horizontalInterval = 8.0, this.isWeeklyOrMonthly = false});
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List<int> xAxixs = List();
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List<double> yAxixs = List();
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double minY = 0;
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double maxY = 0;
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double intialY = 0;
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double lastY = 0;
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double minX = 0;
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double maxX = 0;
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double increasingY = 0;
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@override
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Widget build(BuildContext context) {
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getXaxix();
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getYaxix();
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getInitialY();
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calculateMaxAndMin();
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return AspectRatio(
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aspectRatio: 1.0,
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child: Container(
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decoration: const BoxDecoration(
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borderRadius: BorderRadius.all(Radius.circular(18)),
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// color: Colors.white,
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),
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child: Stack(
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children: <Widget>[
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Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: <Widget>[
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Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Padding(
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padding: const EdgeInsets.all(16.0),
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child: Text(
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title,
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style: TextStyle(color: Colors.black, fontSize: 16, letterSpacing: -0.64, fontWeight: FontWeight.w600),
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textAlign: TextAlign.center,
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),
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),
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],
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),
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mHeight(10),
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Expanded(
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child: Padding(
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padding: const EdgeInsets.only(right: 18.0, left: 16.0),
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child: LineChart(
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sampleData1(context),
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swapAnimationDuration: const Duration(milliseconds: 250),
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),
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),
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),
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const SizedBox(
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height: 10,
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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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getXaxix() {
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for (int index = 0; index < timeSeries.length; index++) {
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int mIndex = indexes * index;
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if (mIndex < timeSeries.length) {
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xAxixs.add(mIndex);
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}
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}
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}
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getYaxix() {
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for (int index = 0; index < timeSeries.length; index++) {
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int mIndex = indexes * index;
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if (mIndex < timeSeries.length) {
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yAxixs.add(timeSeries[mIndex].sales);
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}
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}
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}
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LineChartData sampleData1(context) {
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return LineChartData(
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lineTouchData: LineTouchData(
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touchTooltipData: LineTouchTooltipData(
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tooltipBgColor: Colors.white,
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),
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touchCallback: (touchEvent, LineTouchResponse touchResponse) {},
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handleBuiltInTouches: true,
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),
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gridData: FlGridData(show: true, drawVerticalLine: true, drawHorizontalLine: true),
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titlesData: FlTitlesData(
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bottomTitles: SideTitles(
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showTitles: true,
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getTextStyles: (cxt, value) => const TextStyle(
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color: Colors.black,
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fontSize: 10,
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),
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rotateAngle: -65,
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margin: 22,
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getTitles: (value) {
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if (isWeeklyOrMonthly) {
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return '${timeSeries[value.toInt()].time.day}/ ${timeSeries[value.toInt()].time.month}';
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} else {
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if (timeSeries.length < 15) {
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if (timeSeries.length > value.toInt()) {
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return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}';
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} else
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return '';
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} else {
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if (value.toInt() == 0) return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}';
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if (value.toInt() == timeSeries.length - 1) return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}';
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if (xAxixs.contains(value.toInt())) {
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return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}';
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}
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}
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return '';
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}
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},
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),
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leftTitles: SideTitles(
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showTitles: true,
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getTextStyles: (cxt, value) => const TextStyle(
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color: Colors.black,
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fontWeight: FontWeight.bold,
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fontSize: 10,
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),
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interval: _fetchLeftTileInterval(),
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margin: 12,
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),
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),
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borderData: FlBorderData(
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show: true,
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border: const Border(
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bottom: BorderSide(
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color: Colors.black,
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width: 0.5,
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),
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left: BorderSide(
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color: Colors.black,
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),
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right: BorderSide(
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color: Colors.black,
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),
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top: BorderSide(
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color: Colors.transparent,
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),
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),
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),
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minX: minX,
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maxX: maxX,
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maxY: lastY + 1,
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minY: intialY - 0.5,
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lineBarsData: getData(context),
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);
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}
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calculateMaxAndMin() {
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getMaxY();
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getMaxX();
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getMin();
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getMinY();
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increasingY = ((maxY - minY) / timeSeries.length - 1) * 15;
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maxY += increasingY.abs();
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minY -= increasingY.abs();
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}
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double _fetchLeftTileInterval() {
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final interval = ((lastY - intialY) / 5).toDouble();
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return interval < 1.0 ? 1.0 : interval;
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}
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double getMaxY() {
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maxY = 0;
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timeSeries.forEach((element) {
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double resultValueDouble = element.sales;
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if (resultValueDouble > maxY) {
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lastY = resultValueDouble;
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maxY = resultValueDouble;
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}
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});
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print("maxY " + lastY.toString());
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return maxY.roundToDouble();
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}
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double getInitialY() {
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try {
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intialY = timeSeries.first.sales;
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timeSeries.forEach((element) {
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double resultValueDouble = element.sales;
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if (resultValueDouble < intialY) intialY = resultValueDouble;
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});
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} catch (e) {
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intialY = 0;
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}
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print("minY " + intialY.toString());
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return intialY.roundToDouble();
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}
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getMaxX() {
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maxX = (timeSeries.length - 1).toDouble();
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}
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double getMin() {
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minX = 0;
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timeSeries.forEach((element) {
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double resultValueDouble = element.sales;
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if (resultValueDouble < minX) minX = resultValueDouble;
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});
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return minX.roundToDouble();
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}
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double getMinY() {
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minY = 0;
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timeSeries.forEach((element) {
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double resultValueDouble = element.sales;
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if (resultValueDouble < minY) minY = resultValueDouble;
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});
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int value = minY.toInt();
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return value.toDouble();
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}
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List<LineChartBarData> getData(context) {
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List<FlSpot> spots = List();
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for (int index = 0; index < timeSeries.length; index++) {
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spots.add(FlSpot(index.toDouble(), timeSeries[index].sales));
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}
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final LineChartBarData lineChartBarData1 = LineChartBarData(
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spots: spots,
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isCurved: true,
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colors: [secondaryColor],
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barWidth: 1.5,
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isStrokeCapRound: true,
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dotData: FlDotData(
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show: false,
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),
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belowBarData: BarAreaData(
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show: false,
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),
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);
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return [
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lineChartBarData1,
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];
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}
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}
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