FullAutoWaterCheck/全自动水压检测仪/ChartManager.cs

using LiveCharts;
using LiveCharts.Wpf;
using System;
using System.Drawing;
using System.Windows.Forms;
using System.Windows.Forms.Integration;

namespace 全自动水压检测仪
{
    /// <summary>
    /// 图表管理器 - 负责实时曲线图的创建和数据更新
    /// </summary>
    public class ChartManager
    {
        private ElementHost _chartHost;
        private LiveCharts.Wpf.CartesianChart _chart;
        private ChartValues<double> _pressureValues;
        private ChartValues<double> _temperatureValues;
        private ChartValues<string> _timeLabels;
        private const int MAX_DATA_POINTS = 60; // 最多显示60个数据点

        /// <summary>
        /// 初始化图表并添加到指定面板
        /// </summary>
        public void InitializeChart(Control targetPanel)
        {
            if (targetPanel == null)
                throw new ArgumentNullException(nameof(targetPanel));

            // 清除占位文字
            targetPanel.Text = null;

            // 初始化数据集合
            _pressureValues = new ChartValues<double>();
            _temperatureValues = new ChartValues<double>();
            _timeLabels = new ChartValues<string>();

            // 创建WPF图表控件
            _chart = new LiveCharts.Wpf.CartesianChart
            {
                Background = System.Windows.Media.Brushes.White,
                DisableAnimations = false,
                Hoverable = true,
                DataTooltip = null,
                LegendLocation = LegendLocation.Top
            };

            // 配置X轴（时间轴）
            _chart.AxisX.Add(new Axis
            {
                Title = "时间",
                Labels = _timeLabels,
                FontSize = 12,
                Foreground = System.Windows.Media.Brushes.Black,
                Separator = new LiveCharts.Wpf.Separator
                {
                    Step = 5,
                    IsEnabled = true
                }
            });

            // 配置Y轴（压力）
            _chart.AxisY.Add(new Axis
            {
                Title = "压力 (MPa)",
                FontSize = 12,
                Foreground = System.Windows.Media.Brushes.Blue,
                LabelFormatter = value => value.ToString("F2"),
                MinValue = 0
            });

            // 配置第二Y轴（温度）
            _chart.AxisY.Add(new Axis
            {
                Title = "温度 (°C)",
                FontSize = 12,
                Foreground = System.Windows.Media.Brushes.Red,
                LabelFormatter = value => value.ToString("F1"),
                Position = AxisPosition.RightTop,
                MinValue = 0
            });

            // 添加压力曲线
            _chart.Series.Add(new LineSeries
            {
                Title = "实时压力",
                Values = _pressureValues,
                Stroke = System.Windows.Media.Brushes.Blue,
                Fill = System.Windows.Media.Brushes.Transparent,
                PointGeometry = DefaultGeometries.Circle,
                PointGeometrySize = 5,
                StrokeThickness = 2,
                LineSmoothness = 0.3,
                ScalesYAt = 0
            });

            // 添加温度曲线
            _chart.Series.Add(new LineSeries
            {
                Title = "箱体温度",
                Values = _temperatureValues,
                Stroke = System.Windows.Media.Brushes.Red,
                Fill = System.Windows.Media.Brushes.Transparent,
                PointGeometry = DefaultGeometries.Diamond,
                PointGeometrySize = 5,
                StrokeThickness = 2,
                LineSmoothness = 0.3,
                ScalesYAt = 1
            });

            // 创建ElementHost以承载WPF控件
            _chartHost = new ElementHost
            {
                Dock = DockStyle.Fill,
                Child = _chart
            };

            // 添加到目标面板
            targetPanel.Controls.Add(_chartHost);
        }

        /// <summary>
        /// 添加新的数据点
        /// </summary>
        /// <param name="pressure">压力值</param>
        /// <param name="temperature">温度值</param>
        /// <param name="time">时间标签（可选，默认使用当前时间）</param>
        public void AddDataPoint(double pressure, double temperature, string time = null)
        {
            if (_pressureValues == null || _temperatureValues == null || _timeLabels == null)
                return;

            // 使用当前时间作为默认标签
            if (string.IsNullOrEmpty(time))
                time = DateTime.Now.ToString("HH:mm:ss");

            // 添加数据点
            _pressureValues.Add(pressure);
            _temperatureValues.Add(temperature);
            _timeLabels.Add(time);

            // 限制数据点数量，保持图表流畅
            if (_pressureValues.Count > MAX_DATA_POINTS)
            {
                _pressureValues.RemoveAt(0);
                _temperatureValues.RemoveAt(0);
                _timeLabels.RemoveAt(0);
            }
        }

        /// <summary>
        /// 清除所有数据
        /// </summary>
        public void ClearData()
        {
            _pressureValues?.Clear();
            _temperatureValues?.Clear();
            _timeLabels?.Clear();
        }

        /// <summary>
        /// 更新图表配置（例如切换温度模式时）
        /// </summary>
        /// <param name="isHighTemperatureMode">是否为高温模式</param>
        public void UpdateChartMode(bool isHighTemperatureMode)
        {
            if (_chart == null || _chart.Series.Count < 2)
                return;

            // 更新温度曲线标题
            var tempSeries = _chart.Series[1] as LineSeries;
            if (tempSeries != null)
            {
                tempSeries.Title = isHighTemperatureMode ? "箱体温度（高温）" : "箱体温度（常温）";
            }

            // 可以根据模式调整Y轴范围
            if (_chart.AxisY.Count > 1)
            {
                _chart.AxisY[1].MaxValue = isHighTemperatureMode ? 200 : 100;
            }
        }

        /// <summary>
        /// 释放资源
        /// </summary>
        public void Dispose()
        {
            _chartHost?.Dispose();
            _chart = null;
            _pressureValues = null;
            _temperatureValues = null;
            _timeLabels = null;
        }
    }
}