340 lines
9.0 KiB
Dart
340 lines
9.0 KiB
Dart
import 'dart:ui' as ui;
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import 'package:flutter/material.dart';
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import 'package:flutterflow_ui/flutterflow_ui.dart';
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import 'package:vbvs_app/common/util/FitTool.dart';
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import 'package:vbvs_app/common/util/MyUtils.dart';
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import 'package:intl/intl.dart';
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class SnoreChartContainer extends StatelessWidget {
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final List<dynamic> snoreValues;
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final List<dynamic> barData;
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final List<dynamic> showLabel;
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final int startTime;
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final int endTime;
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const SnoreChartContainer({
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required this.snoreValues,
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required this.barData,
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required this.showLabel,
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required this.startTime,
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required this.endTime,
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super.key,
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});
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@override
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Widget build(BuildContext context) {
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// barData.add({
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// "type": 6,
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// "et": 1765291778963,
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// "st": 1765289341000,
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// });
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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SnoreBarOverlay(
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barData: barData,
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showLabel: showLabel,
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startTime: startTime,
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endTime: endTime,
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),
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Container(height: 32.rpx),
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Container(
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height: 23.rpx,
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child: SnoreWaveform(
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snoreValues: snoreValues,
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startTime: startTime,
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endTime: endTime,
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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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class SnoreBarOverlay extends StatelessWidget {
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final List<dynamic> barData;
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final List<dynamic> showLabel;
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final int startTime;
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final int endTime;
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const SnoreBarOverlay({
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required this.barData,
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required this.showLabel,
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required this.startTime,
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required this.endTime,
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super.key,
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});
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@override
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Widget build(BuildContext context) {
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const double barHeight = 50;
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return SizedBox(
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height: barHeight,
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child: CustomPaint(
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size: Size(double.infinity, barHeight),
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painter: SnoreBarPainter(
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barData: barData,
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showLabel: showLabel,
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startTime: startTime,
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endTime: endTime,
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),
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),
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);
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}
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}
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class SnoreBarPainter extends CustomPainter {
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final List<dynamic> barData;
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final List<dynamic> showLabel;
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final int startTime;
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final int endTime;
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SnoreBarPainter({
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required this.barData,
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required this.showLabel,
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required this.startTime,
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required this.endTime,
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});
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@override
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void paint(Canvas canvas, Size size) {
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final double width = size.width;
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final double height = size.height;
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final double pixelPerMs = width / (endTime - startTime);
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for (var item in barData) {
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final int st = item['st'];
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final int et = item['et'];
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final int type = item['type'];
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int heightInit = 1;
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final match = showLabel.firstWhere(
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(e) => e['type'] == type,
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orElse: () => null,
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);
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Color barColor = Colors.transparent;
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if (match != null) {
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final dynamic colorStr = match['color'];
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if (colorStr != null && colorStr.toString().isNotEmpty) {
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barColor = stringToColor(colorStr);
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}
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}
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final Paint barPaint = Paint()
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..color = barColor
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..style = PaintingStyle.fill;
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final double leftX = (st - startTime) * pixelPerMs;
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final double rightX = (et - startTime) * pixelPerMs;
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final double barWidth = rightX - leftX;
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//rem 深睡 中
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//浅睡 低
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//其他 高
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if (type == 1) {
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heightInit = 1;
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} else if (type == 2 || type == 6) {
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heightInit = 2;
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} else {
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heightInit = 3;
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}
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final double barHeight = (heightInit + 5).toDouble() * 8;
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final double top = height - barHeight;
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final rect = Rect.fromLTWH(leftX, top, barWidth, barHeight);
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canvas.drawRect(rect, barPaint);
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}
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}
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@override
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bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
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}
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class SnoreWaveform extends StatelessWidget {
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final List<dynamic> snoreValues;
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final int startTime;
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final int endTime;
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const SnoreWaveform({
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required this.snoreValues,
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required this.startTime,
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required this.endTime,
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super.key,
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});
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@override
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Widget build(BuildContext context) {
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return SizedBox(
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height: 150,
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child: CustomPaint(
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size: Size(double.infinity, 150),
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painter: SnoreWaveformPainter(
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snoreValues: snoreValues,
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startTime: startTime,
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endTime: endTime,
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),
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),
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);
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}
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}
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class SnoreWaveformPainter extends CustomPainter {
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final List<dynamic> snoreValues;
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final int startTime;
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final int endTime;
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SnoreWaveformPainter({
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required this.snoreValues,
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required this.startTime,
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required this.endTime,
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});
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@override
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void paint(Canvas canvas, Size size) {
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final double width = size.width;
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final double height = size.height;
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final double centerY = height / 2;
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final double totalDuration = (endTime - startTime).toDouble();
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final double pixelPerMs = width / totalDuration;
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final Paint wavePaint = Paint()
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..color = stringToColor("#8E7DEF").withOpacity(0.8)
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..strokeWidth = 1.5
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..style = PaintingStyle.stroke;
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final Path upperPath = Path();
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final Path lowerPath = Path();
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double maxValue = snoreValues.fold<double>(0, (prev, e) {
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final value = e["value"]?.toDouble() ?? 0;
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return value > prev ? value : prev;
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});
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final double maxWaveHeight = height * 1;
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final double scaleY = maxValue > 0 ? (maxWaveHeight / maxValue) : 1;
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for (int i = 0; i < snoreValues.length; i++) {
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final timestamp = snoreValues[i]["st"];
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final value = snoreValues[i]["value"]?.toDouble() ?? 0;
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final x = (timestamp - startTime) * pixelPerMs;
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final y = centerY - value * scaleY;
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final yMirror = centerY + value * scaleY;
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if (i == 0) {
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upperPath.moveTo(x, y);
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lowerPath.moveTo(x, yMirror);
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} else {
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upperPath.lineTo(x, y);
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lowerPath.lineTo(x, yMirror);
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}
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}
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canvas.drawPath(upperPath, wavePaint);
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canvas.drawPath(lowerPath, wavePaint);
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final Paint axisPaint = Paint()
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..color = Colors.grey.withOpacity(0.6)
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..strokeWidth = 0.5;
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canvas.drawLine(Offset(0, centerY), Offset(width, centerY), axisPaint);
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final textPainter = TextPainter(
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textAlign: TextAlign.center,
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textDirection: ui.TextDirection.ltr,
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);
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final int hourMs = 60 * 60 * 1000;
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final int totalHours = (endTime - startTime) ~/ hourMs;
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// 1. 始终显示开始时间
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double x = 0;
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DateTime startDt = DateTime.fromMillisecondsSinceEpoch(startTime);
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String label = DateFormat('HH:mm').format(startDt);
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textPainter.text = TextSpan(
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text: label,
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style: TextStyle(fontSize: 10, color: Colors.grey),
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);
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textPainter.layout();
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textPainter.paint(
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canvas,
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Offset(x - textPainter.width / 2, height + 2),
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);
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// 2. 决定显示策略
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if (totalHours <= 8) {
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// 小时间段：显示所有整点小时
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for (int t = startTime + hourMs; t < endTime; t += hourMs) {
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x = (t - startTime) * pixelPerMs;
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DateTime dt = DateTime.fromMillisecondsSinceEpoch(t);
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// 判断是否接近边界（30分钟内不显示）
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if (t - startTime < 30 * 60 * 1000 || endTime - t < 30 * 60 * 1000) {
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continue;
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}
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label = dt.hour == 0 ? "0" : "${dt.hour}";
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textPainter.text = TextSpan(
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text: label,
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style: TextStyle(fontSize: 10, color: Colors.grey),
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);
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textPainter.layout();
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textPainter.paint(
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canvas,
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Offset(x - textPainter.width / 2, height + 2),
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);
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}
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} else {
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// 长时间段：使用自适应间隔
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int labelInterval = (totalHours / 6).ceil();
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// 计算第一个标签位置（对齐整点）
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int firstLabelMs =
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((startTime ~/ (labelInterval * hourMs))) * labelInterval * hourMs;
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if (firstLabelMs <= startTime) {
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firstLabelMs += labelInterval * hourMs;
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}
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// 绘制中间标签
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for (int t = firstLabelMs; t < endTime; t += labelInterval * hourMs) {
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// 跳过太接近边界的时间点（1小时内不显示）
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if (t - startTime < hourMs || endTime - t < hourMs) continue;
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x = (t - startTime) * pixelPerMs;
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DateTime dt = DateTime.fromMillisecondsSinceEpoch(t);
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label = dt.hour == 0 ? "0" : "${dt.hour}";
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textPainter.text = TextSpan(
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text: label,
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style: TextStyle(fontSize: 10, color: Colors.grey),
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);
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textPainter.layout();
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textPainter.paint(
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canvas,
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Offset(x - textPainter.width / 2, height + 2),
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);
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}
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}
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// 3. 始终显示结束时间
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x = (endTime - startTime) * pixelPerMs;
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DateTime endDt = DateTime.fromMillisecondsSinceEpoch(endTime);
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label = DateFormat('HH:mm').format(endDt);
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textPainter.text = TextSpan(
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text: label,
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style: TextStyle(fontSize: 10, color: Colors.grey),
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);
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textPainter.layout();
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textPainter.paint(
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canvas,
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Offset(x - textPainter.width / 2, height + 2),
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);
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}
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@override
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bool shouldRepaint(covariant CustomPainter oldDelegate) => true;
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}
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