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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| import 'dart:convert'; | ||
| import 'dart:js' as js; | ||
| import 'dart:html' as html; | ||
| import 'dart:ui_web'; | ||
| import 'package:flutter/foundation.dart'; | ||
| import 'package:flutter/material.dart'; | ||
| import 'package:open_earable/sensor_data_tab/sensor_chart.dart'; | ||
|
|
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| class ChartSeries { | ||
| final String id; | ||
| final String label; | ||
| final Function(SensorData, int?) getDomainFn; | ||
| final Function(SensorData, int?) getMeasureFn; | ||
| final Function(SensorData, String?) getColorFn; | ||
|
|
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| final List<SensorData> data; | ||
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| ChartSeries({ | ||
| required this.id, | ||
| required this.label, | ||
| required this.getDomainFn, | ||
| required this.getMeasureFn, | ||
| required this.getColorFn, | ||
| required this.data, | ||
| }); | ||
| } | ||
|
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|
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| class ChartJsWidget extends StatelessWidget { | ||
| final String chartType; | ||
| final List<ChartSeries> seriesList; | ||
|
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| final String title; | ||
|
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| const ChartJsWidget({super.key, | ||
| required this.chartType, | ||
| required this.seriesList, | ||
| required this.title, | ||
| }); | ||
|
|
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| @override | ||
| Widget build(BuildContext context) { | ||
| if (!kIsWeb) { | ||
| return Center( | ||
| child: Text("Chart.js is only supported on Flutter Web."), | ||
| ); | ||
| } | ||
|
|
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| // Generate a unique chart ID | ||
| final String chartId = 'chart-$title'; | ||
|
|
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| // Register a view for the HTML element (CanvasElement) | ||
| platformViewRegistry.registerViewFactory( | ||
| chartId, | ||
| (int viewId) => html.CanvasElement()..id = chartId, | ||
| ); | ||
|
|
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| // Extract labels and datasets after the widget has been built | ||
| WidgetsBinding.instance.addPostFrameCallback((_) { | ||
| final labels = seriesList[0].data.map((data) => seriesList[0].getDomainFn(data, null).toString()).toList(); | ||
| final datasets = seriesList.map((series) { | ||
| return { | ||
| 'label': series.label, | ||
| 'data': series.data.map((data) => series.getMeasureFn(data, null)).toList(), | ||
| 'borderColor': series.getColorFn(series.data[0], null), // Use colorFn for color | ||
| 'backgroundColor': series.getColorFn(series.data[0], null) + '33', // With transparency | ||
| }; | ||
| }).toList(); | ||
|
|
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| // Call the JavaScript function to render the Chart.js chart | ||
| js.context.callMethod('renderChartJS', [ | ||
| chartId, | ||
| chartType, | ||
| jsonEncode(labels), | ||
| jsonEncode(datasets), | ||
| ]); | ||
| }); | ||
|
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| return HtmlElementView(viewType: chartId); | ||
| } | ||
| } |
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| # | ||
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| list(APPEND FLUTTER_PLUGIN_LIST | ||
| open_file_linux | ||
| url_launcher_linux | ||
| ) | ||
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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