852 lines
32 KiB
C#
852 lines
32 KiB
C#
using Common.Attributes;
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using Model.Entity;
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using Model.Models;
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using NLog;
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using OxyPlot;
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using OxyPlot.Axes;
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using OxyPlot.Legends;
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using OxyPlot.Series;
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using Service.Interface;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.Linq;
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using System.Reflection;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Input;
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using System.Windows.Threading;
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using TSMasterCAN;
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using UIShare.GlobalVariable;
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using UIShare.PubEvent;
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using UIShare.UIViewModel;
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using UIShare.ViewModelBase;
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namespace MonitorModule.ViewModels
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{
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public class MonitorViewModel : NavigateViewModelBase, IRegionMemberLifetime, IDisposable
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{
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#region 属性
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private IMonitorValueService _monitorValueService;
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public bool KeepAlive => true;
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public ScopedContext _scopedContext { get; set; } = null!;
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public GlobalInfo _globalInfo { get; set; }
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private string _testStatus = string.Empty;
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public string TestStatus
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{
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get => _testStatus;
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set => SetProperty(ref _testStatus, value);
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}
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public PlotModel Plot { get; }
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/// <summary>已添加的监测通道列表</summary>
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public ObservableCollection<MonitorChannelVM> Channels
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{
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get => _systemConfig?.Channels ?? new ObservableCollection<MonitorChannelVM>();
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set
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{
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if (_systemConfig != null && _systemConfig.Channels != value)
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{
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_systemConfig.Channels = value;
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RaisePropertyChanged();
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}
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}
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}
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/// <summary>可添加的设备方法列表（供用户选择）</summary>
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public ObservableCollection<AvailableMethodItem> AvailableMethods { get; } = new();
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private MonitorChannelVM? _selectedChannel;
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public MonitorChannelVM? SelectedChannel
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{
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get => _selectedChannel;
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set => SetProperty(ref _selectedChannel, value);
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}
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private AvailableMethodItem? _selectedAvailableMethod;
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public AvailableMethodItem? SelectedAvailableMethod
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{
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get => _selectedAvailableMethod;
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set => SetProperty(ref _selectedAvailableMethod, value);
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}
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private string _statusMessage = "图表已就绪，暂无监测项";
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public string StatusMessage
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{
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get => _statusMessage;
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set => SetProperty(ref _statusMessage, value);
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}
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#endregion
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#region 命令
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public ICommand AddChannelCommand { get; }
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public ICommand DeleteChannelCommand { get; }
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public ICommand ResetViewCommand { get; }
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public ICommand RefreshDataCommand { get; }
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public ICommand RefreshCommand { get; }
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public ICommand SaveCommand { get; }
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#endregion
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#region 私有字段
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private bool IsInitiated = false;
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private IScopedProvider? _scope;
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private DeviceManager? _deviceManager;
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private SystemConfig? _systemConfig;
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private CancellationTokenSource? _monitorCTS = new();
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// 颜色调色盘
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private static readonly OxyColor[] _palette =
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{
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OxyColors.SteelBlue, OxyColors.IndianRed, OxyColors.SeaGreen,
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OxyColors.DarkOrange, OxyColors.MediumPurple, OxyColors.Goldenrod,
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OxyColors.Teal, OxyColors.Crimson, OxyColors.OliveDrab
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};
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private int _colorIndex;
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/// <summary>设备数据广播器（全局单例）</summary>
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private HardwareDataBroadcaster? _broadcaster;
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/// <summary>CAN 信号广播器（全局单例）</summary>
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private CANSignalBroadcaster? _canSignalBroadcaster;
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/// <summary>用于 OxyPlot X 轴相对秒数</summary>
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private readonly Stopwatch _stopwatch = new();
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/// <summary>OxyPlot 刷新定时器（仅负责滚动 X 轴 + InvalidatePlot）</summary>
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private readonly DispatcherTimer _plotRefreshTimer;
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/// <summary>事件订阅令牌，用于 Dispose 时取消订阅</summary>
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private SubscriptionToken? _subscriptionToken;
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private SubscriptionToken? _dbcLoadedToken;
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private SubscriptionToken? _dbcUnloadedToken;
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// ==========================================
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// 批量入库核心结构
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// ==========================================
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private readonly ConcurrentQueue<MonitorValueEntity> _insertQueue = new();
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private Task? _dbFlushTask;
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private const int BulkInsertThreshold = 50;
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private int _isFlushing = 0;
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#endregion
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public MonitorViewModel(IContainerExtension container) : base(container)
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{
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_globalInfo = container.Resolve<GlobalInfo>();
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_monitorValueService = container.Resolve<IMonitorValueService>();
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Plot = BuildEmptyPlot();
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AddChannelCommand = new DelegateCommand(OnAddChannel);
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DeleteChannelCommand = new DelegateCommand(OnDeleteChannel);
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ResetViewCommand = new DelegateCommand(OnResetView);
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RefreshDataCommand = new DelegateCommand(OnRefreshData);
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RefreshCommand = new DelegateCommand(OnExpand);
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SaveCommand = new DelegateCommand(OnSave);
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// OxyPlot 刷新定时器（1000ms，只负责视觉更新）
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_plotRefreshTimer = new DispatcherTimer(DispatcherPriority.Background)
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{
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Interval = TimeSpan.FromMilliseconds(1000)
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};
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_plotRefreshTimer.Tick += OnPlotRefreshTick;
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}
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public void Dispose()
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{
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_monitorCTS?.Cancel();
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_monitorCTS?.Dispose();
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_monitorCTS = null;
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_plotRefreshTimer.Stop();
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_plotRefreshTimer.Tick -= OnPlotRefreshTick;
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_stopwatch.Stop();
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// 取消 EventAggregator 订阅
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if (_subscriptionToken != null)
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_eventAggregator.GetEvent<HardwareDataReportedEvent>().Unsubscribe(_subscriptionToken);
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if (_dbcLoadedToken != null)
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_eventAggregator.GetEvent<DBCLoadedEvent>().Unsubscribe(_dbcLoadedToken);
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if (_dbcUnloadedToken != null)
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_eventAggregator.GetEvent<DBCUnloadedEvent>().Unsubscribe(_dbcUnloadedToken);
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if (_dbFlushTask != null)
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{
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try { _dbFlushTask.Wait(TimeSpan.FromSeconds(1.5)); } catch { }
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}
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// 3. 释放容器作用域
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_scope?.Dispose();
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Channels.Clear();
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AvailableMethods.Clear();
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}
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private void OnSave()
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{
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// 将当前 Channels 序列化为 MonitorChannelConfig 列表保存到 MonitorChannels
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if (_systemConfig != null)
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{
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_systemConfig.MonitorChannels = new ObservableCollection<MonitorChannelConfig>(Channels
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.Select(c => new MonitorChannelConfig
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{
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Fingerprint = c.Fingerprint,
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MethodName = c.MethodName,
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IsDisplayed = c.IsDisplayed
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}));
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}
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ConfigService.Save(_systemConfig);
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}
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#region 事件驱动：接收广播数据
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/// <summary>
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/// 由 HardwareDataBroadcaster 通过 EventAggregator 广播触发。
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/// 已通过 ThreadOption.UIThread 确保在 UI 线程执行。
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/// 通过 HardwareFingerprint + MethodName 匹配监测通道。
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/// </summary>
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private void OnHardwareDataReceived(HardwareReportArgs args)
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{
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// 仅处理属于当前 Scope 的事件
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if (string.IsNullOrEmpty(TestStatus) || args.Scope != TestStatus) return;
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// 以硬件指纹 + 方法名唯一匹配通道（与逻辑名解耦）
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var channel = Channels.FirstOrDefault(c =>
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c.Fingerprint == args.HardwareFingerprint &&
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c.MethodName == args.MethodName &&
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c.IsMonitored);
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if (channel == null) return;
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// 记录数据点（线程安全：Record 内部 ConcurrentQueue + Series 操作）
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channel.Record(args.Time, args.Value);
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// 入队数据库批量写入
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// CreateTime 使用 args.Time（采样触发时刻），而不是 DateTime.Now（设备响应到达时刻），
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// 这样即使设备响应有延迟，数据库里的时间戳仍然按设定采样间隔分布。
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var entity = new MonitorValueEntity
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{
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MonitorName = channel.DisplayName,
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MonitorValue = args.Value,
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Scope = args.Scope,
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CreateTime = args.Time,
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IsDel = 0
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};
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_insertQueue.Enqueue(entity);
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if (_insertQueue.Count >= BulkInsertThreshold)
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{
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_ = Task.Run(async () => await DoFlushWorkAsync().ConfigureAwait(false));
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}
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}
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#endregion
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#region OxyPlot 视觉刷新定时器
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private void OnPlotRefreshTick(object? sender, EventArgs e)
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{
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if (!_stopwatch.IsRunning) return;
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var now = DateTime.Now;
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var xAxis = Plot.Axes.FirstOrDefault(a => a.Position == AxisPosition.Bottom);
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if (xAxis != null)
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{
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xAxis.Minimum = DateTimeAxis.ToDouble(now.AddSeconds(-20));
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xAxis.Maximum = DateTimeAxis.ToDouble(now.AddSeconds(0.5));
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}
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Plot.InvalidatePlot(true);
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}
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#endregion
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#region 后台数据库批量入库
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private void StartDbFlushWorker(CancellationToken token)
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{
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_dbFlushTask = Task.Run(async () =>
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{
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while (!token.IsCancellationRequested)
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{
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try
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{
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await Task.Delay(TimeSpan.FromSeconds(1), token).ConfigureAwait(false);
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await DoFlushWorkAsync().ConfigureAwait(false);
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}
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catch (OperationCanceledException) { break; }
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catch (Exception ex)
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{
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System.Diagnostics.Debug.WriteLine($"[DB Worker Error] {ex.Message}");
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}
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}
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await DoFlushWorkAsync().ConfigureAwait(false);
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}, token);
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}
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private async Task DoFlushWorkAsync()
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{
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if (_insertQueue.IsEmpty) return;
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if (Interlocked.CompareExchange(ref _isFlushing, 1, 0) != 0) return;
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try
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{
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var listToInsert = new List<MonitorValueEntity>();
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while (_insertQueue.TryDequeue(out var entity)) listToInsert.Add(entity);
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if (listToInsert.Count > 0)
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{
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var result = await _monitorValueService.InsertRangeAsync(listToInsert).ConfigureAwait(false);
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}
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}
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finally { Interlocked.Exchange(ref _isFlushing, 0); }
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}
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#endregion
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#region Navigation 导航
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public override void OnNavigatedTo(NavigationContext navigationContext)
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{
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base.OnNavigatedTo(navigationContext);
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if (!IsInitiated && navigationContext.Parameters.ContainsKey("Name"))
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{
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TestStatus = navigationContext.Parameters.GetValue<string>("Name");
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Plot.Title = $"监控 - {TestStatus}";
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Plot.InvalidatePlot(false);
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_scope = _globalInfo.ScopeDic[TestStatus];
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_scopedContext = _scope.Resolve<ScopedContext>();
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_deviceManager = _scope.Resolve<DeviceManager>();
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_systemConfig = _scope.Resolve<SystemConfig>();
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RaisePropertyChanged(nameof(Channels));
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_broadcaster = _scope.Resolve<HardwareDataBroadcaster>();
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_canSignalBroadcaster = _scope.Resolve<CANSignalBroadcaster>();
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IsInitiated = true;
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if (_monitorCTS == null) _monitorCTS = new CancellationTokenSource();
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// 1. 启动后台数据库消费
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StartDbFlushWorker(_monitorCTS.Token);
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// 2. 扫描可监测方法（供 UI 选择）
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DiscoverAvailableMethods();
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// 3. 从配置自动恢复已保存的监测通道
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RestoreChannelsFromConfig();
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// 4. 启动广播器（Discover + Start）
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_broadcaster.Discover();
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_broadcaster.Start();
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_canSignalBroadcaster.Discover();
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_canSignalBroadcaster.Start();
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// 5. 订阅 HardwareDataReportedEvent（UI 线程回调）
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_subscriptionToken = _eventAggregator.GetEvent<HardwareDataReportedEvent>()
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.Subscribe(OnHardwareDataReceived, ThreadOption.UIThread);
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// 5b. 订阅 DBC 加载/卸载事件，动态发现或清除 CAN 信号
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_dbcLoadedToken = _eventAggregator.GetEvent<DBCLoadedEvent>()
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.Subscribe(OnDbcLoaded, ThreadOption.UIThread);
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_dbcUnloadedToken = _eventAggregator.GetEvent<DBCUnloadedEvent>()
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.Subscribe(OnDbcUnloaded, ThreadOption.UIThread);
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// 5c. 根据 SystemConfig.ConfigurationList 刷新已加载 DBC 中的 CAN 信号
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RefreshConfiguredCanSignals();
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// 6. 启动 OxyPlot 视觉刷新定时器
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_stopwatch.Start();
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_plotRefreshTimer.Start();
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}
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}
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#endregion
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#region PlotModel 构建
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private static PlotModel BuildEmptyPlot()
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{
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var pm = new PlotModel
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{
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Title = string.Empty,
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PlotAreaBorderColor = OxyColors.LightGray,
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Background = OxyColors.White
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};
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pm.Axes.Add(new DateTimeAxis
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{
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Position = AxisPosition.Bottom,
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Title = "时间",
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StringFormat = "HH:mm:ss",
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MajorGridlineStyle = LineStyle.Dot,
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MinorGridlineStyle = LineStyle.None
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});
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pm.Axes.Add(new LinearAxis
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{
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Position = AxisPosition.Left,
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Title = "值",
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MajorGridlineStyle = LineStyle.Dot,
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MinorGridlineStyle = LineStyle.None
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});
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pm.Legends.Add(new Legend
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{
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LegendPosition = LegendPosition.RightTop,
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LegendBackground = OxyColor.FromAColor(200, OxyColors.White),
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LegendBorder = OxyColors.LightGray
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});
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return pm;
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}
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#endregion
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#region 设备方法发现（仅用于 UI 展示可选项）
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/// <summary>
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/// 通过 GlobalInfo.HardwarePool 构建 设备实例引用→硬件指纹 的反向查找表。
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/// </summary>
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private Dictionary<object, string> BuildInstanceToFingerprint()
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{
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var map = new Dictionary<object, string>(ReferenceEqualityComparer.Instance);
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foreach (var poolEntry in _globalInfo.HardwarePool)
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{
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var lazy = poolEntry.Value;
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if (lazy.IsValueCreated && lazy.Value != null)
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map[lazy.Value] = poolEntry.Key;
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}
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return map;
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}
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private void DiscoverAvailableMethods()
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{
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AvailableMethods.Clear();
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if (_deviceManager?.DeviceMap == null || _deviceManager.DeviceMap.Count == 0)
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{
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StatusMessage = "当前工位无可用设备";
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return;
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}
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var instanceToFp = BuildInstanceToFingerprint();
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foreach (var kvp in _deviceManager.DeviceMap)
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{
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string deviceName = kvp.Key;
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var device = kvp.Value;
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var deviceType = device.GetType();
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// 反查该实例的硬件指纹
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if (!instanceToFp.TryGetValue(device, out string? fingerprint))
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continue;
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var methods = deviceType.GetMethods(BindingFlags.Public | BindingFlags.Instance)
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.Where(m =>
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{
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if (m.GetCustomAttribute<MonitorableAttribute>() == null) return false;
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if (m.ReturnType != typeof(Task<string>)) return false;
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var parms = m.GetParameters();
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return parms.Length == 0 ||
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(parms.Length == 1 && parms[0].ParameterType == typeof(CancellationToken));
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});
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foreach (var method in methods)
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{
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var attr = method.GetCustomAttribute<MonitorableAttribute>();
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string displayName = !string.IsNullOrEmpty(attr?.Description)
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? $"{deviceName}.{attr.Description}"
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: $"{deviceName}.{method.Name}";
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AvailableMethods.Add(new AvailableMethodItem
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{
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DeviceName = deviceName,
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Fingerprint = fingerprint,
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MethodName = method.Name,
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DisplayName = displayName,
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MethodInfo = method,
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Device = device
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});
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}
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}
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StatusMessage = AvailableMethods.Count > 0
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? $"发现 {AvailableMethods.Count} 个可监测项"
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: "未发现可监测的设备方法";
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}
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/// <summary>
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/// 从 SystemConfig.MonitorChannels 持久化列表自动还原监测通道。
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/// </summary>
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private void RestoreChannelsFromConfig()
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{
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if (_systemConfig?.MonitorChannels == null || _systemConfig.MonitorChannels.Count == 0) return;
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int restored = 0;
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foreach (var config in _systemConfig.MonitorChannels)
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{
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if (string.IsNullOrWhiteSpace(config.Fingerprint) ||
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string.IsNullOrWhiteSpace(config.MethodName)) continue;
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// 已在 Channels 中存在则跳过
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if (Channels.Any(c => c.Fingerprint == config.Fingerprint && c.MethodName == config.MethodName))
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continue;
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// 在 AvailableMethods 中查找匹配项
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var method = AvailableMethods.FirstOrDefault(m =>
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m.Fingerprint == config.Fingerprint && m.MethodName == config.MethodName);
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if (method == null) continue;
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var color = _palette[_colorIndex % _palette.Length];
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_colorIndex++;
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var channel = new MonitorChannelVM
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{
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DeviceName = method.DeviceName,
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Fingerprint = method.Fingerprint,
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MethodName = method.MethodName,
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DisplayName = method.DisplayName,
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Color = color,
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IsMonitored = true,
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IsDisplayed = config.IsDisplayed
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};
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// 仅当 IsDisplayed=true 时才创建 LineSeries
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if (channel.IsDisplayed)
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{
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channel.Series = new LineSeries
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{
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Title = channel.DisplayName,
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Color = color,
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StrokeThickness = 1.5
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};
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Plot.Series.Add(channel.Series);
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}
|
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|
||
channel.PropertyChanged += (s, e) =>
|
||
{
|
||
if (e.PropertyName == nameof(MonitorChannelVM.IsDisplayed))
|
||
OnChannelDisplayChanged(channel);
|
||
};
|
||
|
||
Channels.Add(channel);
|
||
restored++;
|
||
}
|
||
|
||
if (restored > 0)
|
||
{
|
||
Plot.InvalidatePlot(true);
|
||
StatusMessage = $"已从配置自动恢复 {restored} 个监测通道";
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 根据 SystemConfig.ConfigurationList 刷新所有已加载 DBC 中的 CAN 信号。
|
||
/// 只添加 ConfigurationList 中配置且实际存在于 DBC 的信号；不存在则清理。
|
||
/// </summary>
|
||
private void RefreshConfiguredCanSignals()
|
||
{
|
||
if (_systemConfig?.ConfigurationList == null || _systemConfig.ConfigurationList.Count == 0) return;
|
||
if (_deviceManager?.CANFD == null) return;
|
||
|
||
var msgDb = DBCParse.MsgDatabase;
|
||
foreach (var channel in _systemConfig.ConfigurationList.Select(c => c.Channel).Distinct())
|
||
{
|
||
if (channel < 0 || channel >= msgDb.Count) continue;
|
||
RefreshCanSignalsForChannel((uint)channel, msgDb[channel]);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 刷新单个通道的 CAN 信号：以 ConfigurationList 为白名单，对照 DBC 实际存在性。
|
||
/// - DBC 中存在 → 加入 AvailableMethods；若 MonitorChannels 中也有，则恢复 Channel。
|
||
/// - DBC 中不存在 → 从 AvailableMethods 移除；若已在 Channels 中，则删除。
|
||
/// </summary>
|
||
private void RefreshCanSignalsForChannel(uint channel, List<_Msg_> messages)
|
||
{
|
||
if (_systemConfig?.ConfigurationList == null) return;
|
||
|
||
string canDeviceFingerprint = _deviceManager?.GetCanDeviceFingerprint() ?? string.Empty;
|
||
string fingerprint = CANSignalBroadcaster.BuildFingerprint(canDeviceFingerprint, channel);
|
||
var configs = _systemConfig.ConfigurationList.Where(c => c.Channel == (int)channel).ToList();
|
||
bool changed = false;
|
||
|
||
foreach (var cfg in configs)
|
||
{
|
||
if (string.IsNullOrEmpty(cfg.SignalName)) continue;
|
||
|
||
string methodName = CANSignalBroadcaster.BuildMethodName((uint)cfg.MessageID, cfg.SignalName);
|
||
bool existsInDbc = messages.Any(m =>
|
||
m.msg_id == cfg.MessageID &&
|
||
m.signal_Name != null &&
|
||
m.signal_Name.Contains(cfg.SignalName));
|
||
|
||
if (existsInDbc)
|
||
{
|
||
// 加入 AvailableMethods（去重）
|
||
if (!AvailableMethods.Any(m => m.Fingerprint == fingerprint && m.MethodName == methodName))
|
||
{
|
||
string displayName = CANSignalBroadcaster.BuildDisplayName(cfg.MessageName, cfg.SignalName);
|
||
AvailableMethods.Add(new AvailableMethodItem
|
||
{
|
||
DeviceName = $"CAN{channel}",
|
||
Fingerprint = fingerprint,
|
||
MethodName = methodName,
|
||
DisplayName = displayName,
|
||
MethodInfo = null!,
|
||
Device = null!
|
||
});
|
||
changed = true;
|
||
}
|
||
|
||
// 如果 MonitorChannels 中有持久化记录，自动恢复 Channel
|
||
var monitorConfig = _systemConfig.MonitorChannels?.FirstOrDefault(m =>
|
||
m.Fingerprint == fingerprint && m.MethodName == methodName);
|
||
if (monitorConfig != null && !Channels.Any(c =>
|
||
c.Fingerprint == fingerprint && c.MethodName == methodName))
|
||
{
|
||
AddCanChannel(cfg, fingerprint, methodName, monitorConfig.IsDisplayed);
|
||
changed = true;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
// DBC 中不存在：从 AvailableMethods 移除
|
||
var methodToRemove = AvailableMethods.FirstOrDefault(m =>
|
||
m.Fingerprint == fingerprint && m.MethodName == methodName);
|
||
if (methodToRemove != null)
|
||
{
|
||
AvailableMethods.Remove(methodToRemove);
|
||
changed = true;
|
||
}
|
||
|
||
// 如果该信号已经在 Channels（或 MonitorChannels）中，删除
|
||
var channelToRemove = Channels.FirstOrDefault(c =>
|
||
c.Fingerprint == fingerprint && c.MethodName == methodName);
|
||
if (channelToRemove != null)
|
||
{
|
||
if (channelToRemove.Series != null) Plot.Series.Remove(channelToRemove.Series);
|
||
Channels.Remove(channelToRemove);
|
||
changed = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (changed)
|
||
{
|
||
Plot.InvalidatePlot(true);
|
||
StatusMessage = $"CAN{channel} 已刷新配置信号";
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// DBCLoadedEvent 回调：DBC 加载后刷新该通道的配置信号。
|
||
/// </summary>
|
||
private void OnDbcLoaded(DBCLoadedArgs args)
|
||
{
|
||
if (args.Scope != TestStatus) return;
|
||
if (_deviceManager?.CANFD == null) return;
|
||
int channel = (int)args.Channel;
|
||
var msgDb = DBCParse.MsgDatabase;
|
||
if (channel < 0 || channel >= msgDb.Count) return;
|
||
|
||
RefreshCanSignalsForChannel(args.Channel, msgDb[channel]);
|
||
}
|
||
|
||
/// <summary>
|
||
/// DBCUnloadedEvent 回调：移除对应通道的 CAN 信号（AvailableMethods + Channels）。
|
||
/// </summary>
|
||
private void OnDbcUnloaded(DBCUnloadedArgs args)
|
||
{
|
||
if (args.Scope != TestStatus) return;
|
||
|
||
string canDeviceFingerprint = _deviceManager?.GetCanDeviceFingerprint() ?? string.Empty;
|
||
string fingerprint = CANSignalBroadcaster.BuildFingerprint(canDeviceFingerprint, args.Channel);
|
||
|
||
// 从 AvailableMethods 中移除
|
||
var toRemoveMethods = AvailableMethods.Where(m => m.Fingerprint == fingerprint).ToList();
|
||
foreach (var m in toRemoveMethods)
|
||
AvailableMethods.Remove(m);
|
||
|
||
// 从 Channels 中移除（并清理 Plot）
|
||
var toRemoveChannels = Channels.Where(c => c.Fingerprint == fingerprint).ToList();
|
||
foreach (var c in toRemoveChannels)
|
||
{
|
||
if (c.Series != null) Plot.Series.Remove(c.Series);
|
||
Channels.Remove(c);
|
||
}
|
||
|
||
if (toRemoveMethods.Count > 0 || toRemoveChannels.Count > 0)
|
||
{
|
||
Plot.InvalidatePlot(true);
|
||
StatusMessage = $"CAN{args.Channel} DBC 已卸载，移除 {toRemoveMethods.Count} 个信号";
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将单个 CAN 信号添加为监测通道。
|
||
/// </summary>
|
||
private void AddCanChannel(CANSignalConfig cfg, string fingerprint, string methodName, bool isDisplayed)
|
||
{
|
||
var color = _palette[_colorIndex % _palette.Length];
|
||
_colorIndex++;
|
||
|
||
string displayName = CANSignalBroadcaster.BuildDisplayName(cfg.MessageName, cfg.SignalName);
|
||
var channel = new MonitorChannelVM
|
||
{
|
||
DeviceName = $"CAN{cfg.Channel}",
|
||
Fingerprint = fingerprint,
|
||
MethodName = methodName,
|
||
DisplayName = displayName,
|
||
Color = color,
|
||
IsMonitored = true,
|
||
IsDisplayed = isDisplayed
|
||
};
|
||
|
||
if (channel.IsDisplayed)
|
||
{
|
||
channel.Series = new LineSeries
|
||
{
|
||
Title = channel.DisplayName,
|
||
Color = color,
|
||
StrokeThickness = 1.5
|
||
};
|
||
Plot.Series.Add(channel.Series);
|
||
}
|
||
|
||
channel.PropertyChanged += (s, e) =>
|
||
{
|
||
if (e.PropertyName == nameof(MonitorChannelVM.IsDisplayed))
|
||
OnChannelDisplayChanged(channel);
|
||
};
|
||
|
||
Channels.Add(channel);
|
||
}
|
||
#endregion
|
||
|
||
#region 命令处理
|
||
private void OnAddChannel()
|
||
{
|
||
var method = SelectedAvailableMethod;
|
||
if (method == null)
|
||
{
|
||
StatusMessage = "请先在列表中选择一个监测项";
|
||
return;
|
||
}
|
||
|
||
// 以指纹+方法名去重，防止同一物理设备重复添加
|
||
if (Channels.Any(c => c.Fingerprint == method.Fingerprint && c.MethodName == method.MethodName))
|
||
{
|
||
StatusMessage = $"监测项 [{method.DisplayName}] 已存在";
|
||
return;
|
||
}
|
||
|
||
var color = _palette[_colorIndex % _palette.Length];
|
||
_colorIndex++;
|
||
|
||
var channel = new MonitorChannelVM
|
||
{
|
||
DeviceName = method.DeviceName,
|
||
Fingerprint = method.Fingerprint,
|
||
MethodName = method.MethodName,
|
||
DisplayName = method.DisplayName,
|
||
Color = color,
|
||
IsMonitored = true,
|
||
IsDisplayed = true
|
||
};
|
||
|
||
channel.Series = new LineSeries
|
||
{
|
||
Title = channel.DisplayName,
|
||
Color = color,
|
||
StrokeThickness = 1.5
|
||
};
|
||
Plot.Series.Add(channel.Series);
|
||
|
||
channel.PropertyChanged += (s, e) =>
|
||
{
|
||
if (e.PropertyName == nameof(MonitorChannelVM.IsDisplayed))
|
||
OnChannelDisplayChanged(channel);
|
||
};
|
||
|
||
Channels.Add(channel);
|
||
SelectedChannel = channel;
|
||
|
||
Plot.InvalidatePlot(true);
|
||
StatusMessage = $"已添加监测项 [{channel.DisplayName}]，当前共 {Channels.Count} 项";
|
||
}
|
||
|
||
private void OnDeleteChannel()
|
||
{
|
||
var target = SelectedChannel ?? Channels.LastOrDefault();
|
||
if (target == null)
|
||
{
|
||
StatusMessage = "无可删除的监测项";
|
||
return;
|
||
}
|
||
|
||
if (target.Series != null) Plot.Series.Remove(target.Series);
|
||
Channels.Remove(target);
|
||
SelectedChannel = Channels.LastOrDefault();
|
||
|
||
Plot.InvalidatePlot(true);
|
||
StatusMessage = $"已删除监测项 [{target.DisplayName}]，剩余 {Channels.Count} 项";
|
||
}
|
||
|
||
private void OnResetView()
|
||
{
|
||
Plot.ResetAllAxes();
|
||
Plot.InvalidatePlot(false);
|
||
StatusMessage = "视图已按数据范围复原";
|
||
}
|
||
|
||
private void OnRefreshData()
|
||
{
|
||
Plot.InvalidatePlot(true);
|
||
StatusMessage = $"已刷新（{DateTime.Now:HH:mm:ss}）";
|
||
}
|
||
|
||
private void OnExpand()
|
||
{
|
||
if (string.IsNullOrEmpty(TestStatus)) return;
|
||
_globalInfo.CurrentScope = TestStatus;
|
||
_eventAggregator.GetEvent<ExpandViewEvent>().Publish(TestStatus);
|
||
}
|
||
#endregion
|
||
|
||
#region 显示/隐藏切换与数学变换
|
||
public void OnChannelDisplayChanged(MonitorChannelVM channel)
|
||
{
|
||
if (channel.IsDisplayed)
|
||
{
|
||
if (channel.Series == null)
|
||
{
|
||
channel.Series = new LineSeries
|
||
{
|
||
Title = channel.DisplayName,
|
||
Color = channel.Color,
|
||
StrokeThickness = 1.5
|
||
};
|
||
|
||
var recent = channel.DataPoints.ToArray();
|
||
var startIdx = Math.Max(0, recent.Length - 10000);
|
||
for (int i = startIdx; i < recent.Length; i++)
|
||
channel.Series.Points.Add(new DataPoint(recent[i].Time.ToOADate(), recent[i].DisplayValue));
|
||
|
||
Plot.Series.Add(channel.Series);
|
||
Plot.InvalidatePlot(true);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (channel.Series != null)
|
||
{
|
||
Plot.Series.Remove(channel.Series);
|
||
channel.Series = null;
|
||
Plot.InvalidatePlot(true);
|
||
}
|
||
}
|
||
}
|
||
|
||
public void OnChannelMathChanged(MonitorChannelVM channel)
|
||
{
|
||
if (channel.Series == null) return;
|
||
var points = channel.DataPoints.ToArray();
|
||
channel.Series.Points.Clear();
|
||
var startIdx = Math.Max(0, points.Length - 10000);
|
||
for (int i = startIdx; i < points.Length; i++)
|
||
channel.Series.Points.Add(new DataPoint(points[i].Time.ToOADate(), points[i].DisplayValue));
|
||
Plot.InvalidatePlot(true);
|
||
}
|
||
#endregion
|
||
}
|
||
}
|