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218 lines
6.2 KiB
Dart
218 lines
6.2 KiB
Dart
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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class LineChartCurved 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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LineChartCurved({this.title, this.timeSeries, this.indexes});
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List<int> xAxixs = List();
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List<double> yAxixs = List();
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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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return AspectRatio(
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aspectRatio: 1.1,
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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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const SizedBox(
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height: 4,
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),
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Text(
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title,
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style: TextStyle(
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color: Colors.black,
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fontSize: 15,
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letterSpacing: 2),
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textAlign: TextAlign.center,
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),
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SizedBox(height: 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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int indexess= (timeSeries.length*0.30).toInt();
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for (int index = 0; index < timeSeries.length; index++) {
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int mIndex = indexess * 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: (LineTouchResponse touchResponse) {},
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handleBuiltInTouches: true,
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),
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gridData: FlGridData(
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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: (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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//rotateAngle:-65,
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margin: 22,
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getTitles: (value) {
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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}/ ${timeSeries[value.toInt()].time.year}';
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} else
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return '';
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} else {
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if (value.toInt() == 0)
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return '${timeSeries[value.toInt()].time.month}/ ${timeSeries[value.toInt()].time.year}';
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if (value.toInt() == timeSeries.length - 1)
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return '${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}/ ${timeSeries[value.toInt()].time.year}';
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}
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}
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return '';
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},
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),
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leftTitles: SideTitles(
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showTitles: true,
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getTextStyles: (value) => const TextStyle(
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color: Colors.black,
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fontWeight: FontWeight.bold,
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fontSize: 10,
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),
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getTitles: (value) {
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// if (timeSeries.length < 10) {
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// return '${value.toInt()}';
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// } else {
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// if (value == getMinY())
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// return '${value.toInt()}';
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// if (value == getMaxY())
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// return '${value.toInt()}';
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// if (yAxixs.contains(value)) {
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// return '${value.toInt()}';
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// }
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// return '';
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// }
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return '${value.toInt()}';
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},
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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: 0,
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maxX: (timeSeries.length - 1).toDouble(),
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maxY: getMaxY()+0.3,
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minY: getMinY(),
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lineBarsData: getData(context),
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);
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}
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double getMaxY() {
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double max = 0;
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timeSeries.forEach((element) {
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double resultValueDouble = element.sales;
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if (resultValueDouble > max) max = resultValueDouble;
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});
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return max.roundToDouble() ;
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}
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double getMinY() {
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double min = timeSeries[0].sales;
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timeSeries.forEach((element) {
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double resultValueDouble = element.sales;
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if (resultValueDouble < min) min = resultValueDouble;
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});
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int value = min.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: [Theme.of(context).primaryColor],
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barWidth: 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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