Shaker/Avalonia/ShakerApp/ViewModels/PlotConfig/PlotConfigViewModel.cs

using Avalonia.Collections;
using Avalonia.Controls;
using Avalonia.Media;
using CommunityToolkit.Mvvm.Input;
using OxyPlot;
using OxyPlot.Series;
using Shaker.Models;
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;

namespace ShakerApp.ViewModels
{
    internal class PlotConfigViewModel:DisplayViewModelBase<IModel>
    {
        public override double Width => 750;
        public override double Height => 600;
        public override bool CanResize => false;
        public bool NoSeries { get => noSeries; set =>SetProperty(ref noSeries , value); }
        public AvaloniaList<SeriesConfigViewModel> SeriesConfigs { get; } = new AvaloniaList<SeriesConfigViewModel>();
        private PlotConfigViewModel()
        {
            Content = typeof(Views.PlotConfigView);
            Title = "PlotConfig";
        }
        static PlotConfigViewModel()
        {

        }

        public ICommand PlotConfigCommand => new RelayCommand<PlotModel>(InitPlot);
        [AllowNull]
        private PlotModel _PlotModel;
        private bool noSeries = false;

        public async void InitPlot(object? sender, PlotModel? model)
        {
            if(model ==null || sender is not Control control)
            {
                NoSeries = true;
                SaveIsEnabled = false;
                return;
            }
            _PlotModel = model;
            SeriesConfigs.Clear();
            var lists = _PlotModel.Series.OfType<LineSeries>().ToList();
            if (lists.Count == 0)
            {
                NoSeries = true;
                SaveIsEnabled = false;
                return;
            }
            NoSeries = false;
            SaveIsEnabled = true;
            lists.ForEach(x => SeriesConfigs.Add(new SeriesConfigViewModel(x)));
            base.InitData();
            BaseDialogWindow window = new BaseDialogWindow();
            window.DataContext = this;
            CloseWindowAction = () => window?.Close();
            await window.ShowDialog((Window)Window.GetTopLevel(control)!);
        }
        protected override void Save()
        {
            base.Save();
            var lists = _PlotModel.Series.OfType<LineSeries>().ToList();
            if (lists.Count == 0) return;
            _PlotModel.InvalidatePlot(false);
            try
            {
                /*
                 * 关联的曲线可能由于后台通信指令重新加载
                 */
                for(int i=0;i<Math.Min(lists.Count,SeriesConfigs.Count);i++)
                {
                    lists[i].Color = OxyColor.FromUInt32(SeriesConfigs[i].Color.ToUInt32());
                    lists[i].StrokeThickness = SeriesConfigs[i].StrokeThickness;
                    lists[i].LineStyle = SeriesConfigs[i].LineStyle;
                    lists[i].MarkerType = SeriesConfigs[i].MarkerType;
                }
            }
            catch
            {

            }
            _PlotModel.InvalidatePlot(true);
        }
        public static PlotConfigViewModel Instance { get; } = new PlotConfigViewModel();
    }

    internal class SeriesConfigViewModel : ViewModelBase
    {
        private Color color;
        private LineStyle lineStyle;
        private MarkerType markerType;
        private double strokeThickness;

        public SeriesConfigViewModel(LineSeries series)
        {
            Color = new Color(series.ActualColor.A, series.ActualColor.R, series.ActualColor.G, series.ActualColor.B);
            LineStyle = series.LineStyle;
            MarkerType = series.MarkerType;
            StrokeThickness = series.StrokeThickness;
            Name = series.Title;
        }

        public string Name { get; }
        public Avalonia.Media.Color Color { get => color; set =>SetProperty(ref color , value); }
        public LineStyle LineStyle { get => lineStyle; set =>SetProperty(ref lineStyle , value); }
        public MarkerType MarkerType { get => markerType; set =>SetProperty(ref markerType , value); }
        public double StrokeThickness { get => strokeThickness; set =>SetProperty(ref strokeThickness , value); }
    }
}