135 lines
4.1 KiB
Dart
135 lines
4.1 KiB
Dart
import 'package:charts_flutter/flutter.dart' as charts;
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import 'package:charts_flutter/flutter.dart';
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import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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import 'package:provider/provider.dart';
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import 'package:fcs/charts/po_balance_table.dart';
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import 'package:fcs/model/chart_model.dart';
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import 'package:fcs/model/product_model.dart';
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import 'package:fcs/theme/theme.dart';
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import 'package:fcs/vo/po.dart';
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import 'package:fcs/widget/local_text.dart';
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class POBalanceChart extends StatefulWidget {
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@override
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_POBalanceChartState createState() => _POBalanceChartState();
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}
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class _POBalanceChartState extends State<POBalanceChart> {
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static final numberFormatter = new NumberFormat("#,###");
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List<POChartData> chartSummary = new List();
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List<charts.Series<POChartData, String>> series;
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@override
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void initState() {
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super.initState();
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var chartModel = Provider.of<ChartModel>(context, listen: false);
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if (mounted) {
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load(chartModel);
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}
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}
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Future<void> load(ChartModel chartModel) async {
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var _u = await chartModel.loadPOBalancesForBuyer();
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if (_u == null) return;
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if (mounted) {
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setState(() {
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this.chartSummary = _u;
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});
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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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var productModel = Provider.of<ProductModel>(context);
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if (this.chartSummary.isNotEmpty) {
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this.chartSummary.forEach((s) {
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productModel.products.forEach((p) {
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if (p.id == s.productID) {
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s.displayOrder = p.displayOrder;
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} else {
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return;
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}
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});
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});
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this
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.chartSummary
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.sort((s1, s2) => s1.displayOrder.compareTo(s2.displayOrder));
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}
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List<charts.Series<POChartData, String>> series = [
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charts.Series(
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id: "Subscribers",
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data: this.chartSummary,
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domainFn: (POChartData series, _) => series.productName,
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measureFn: (POChartData series, _) => series.balanceQty,
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colorFn: (POChartData series, _) =>
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charts.ColorUtil.fromDartColor(series.getColor),
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labelAccessorFn: (POChartData series, _) =>
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'${numberFormatter.format(series.balanceQty)}'),
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];
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return Container(
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height: 200,
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child: Column(
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children: <Widget>[
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: <Widget>[
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LocalText(context, 'po.balances',
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color: primaryColor, fontSize: 16),
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IconButton(
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icon: Icon(
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Icons.refresh,
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color: primaryColor,
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),
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onPressed: () {
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_load();
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},
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)
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],
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),
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Expanded(
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child: charts.BarChart(
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series,
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animate: true,
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vertical: false,
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defaultRenderer: new charts.BarRendererConfig(
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barRendererDecorator: new charts.BarLabelDecorator<String>(
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labelPosition: charts.BarLabelPosition.auto,
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),
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),
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selectionModels: [
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SelectionModelConfig(changedListener: (SelectionModel model) {
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final selectedDatum = model.selectedDatum;
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if (selectedDatum.isNotEmpty) {
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selectedDatum.forEach((charts.SeriesDatum datumPair) {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => POBalanceTable(
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poChartData: datumPair.datum,
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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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Future<void> _load() async {
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var chartModel = Provider.of<ChartModel>(context);
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var _s = await chartModel.loadPOBalancesForBuyer();
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if (mounted) {
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setState(() {
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this.chartSummary = _s ?? [];
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});
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}
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}
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}
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