BPASmartClient/BPASmartClient.CustomResource/UserControls/Control/CircularDiagram.xaml.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace BPASmartClient.CustomResource.UserControls
{
    /// <summary>
    /// CircularDiagram.xaml 的交互逻辑
    /// </summary>
    public partial class CircularDiagram : UserControl
    {
        public CircularDiagram()
        {
            InitializeComponent();
            this.Loaded += (s, e) => { sData = this.path.Data.ToString(); Refresh(); };
        }
        string sData = string.Empty;
        private static void OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            (d as CircularDiagram)?.Refresh();
        }

        private void Refresh()
        {
            if (Value <= 0)
            {
                this.path.Visibility = Visibility.Collapsed;
                this.tb.Text = "0%";
            }
            else
            {
                var datas = sData.Split('z');
                if (int.TryParse(Math.Round(Value * 0.36f).ToString(), out int temp))
                {
                    if (temp >= 0 && temp <= datas.Length - 1)
                    {
                        StringBuilder sb = new StringBuilder();
                        datas[0..temp].ToList()?.ForEach(item =>
                        {
                            sb.Append($"{item}z");
                        });
                        var converter = TypeDescriptor.GetConverter(typeof(Geometry));
                        this.path.Data = (Geometry)converter.ConvertFrom(sb.ToString());
                    }
                }
                this.path.Visibility = Visibility.Visible;
                this.tb.Text = $"{Value}%";
            }
        }

        public int Value
        {
            get { return (int)GetValue(ValueProperty); }
            set { SetValue(ValueProperty, value); }
        }
        public static readonly DependencyProperty ValueProperty =
            DependencyProperty.Register("Value", typeof(int), typeof(CircularDiagram),
             new PropertyMetadata(0, new PropertyChangedCallback(OnPropertyChanged)));



    }
}