BPASmartClient/BPASmartClient.SCADAControl/Converters/Style3ArcConverter.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Data;
using System.Windows.Media;
namespace BPASmartClient.SCADAControl.Converters
{
    public class Style3ArcConverter :IMultiValueConverter
    {
        public object Convert(object[] values,Type targetType,object parameter,CultureInfo culture)
        {
            double value = (double)values[0];
            double thickness = (double)values[1];

            double radius = 40;

            double 周长 = Math.PI * (2 * radius - thickness) / thickness;

            double showPrecent = value / 100 * 周长;

            var converter = TypeDescriptor.GetConverter(typeof(DoubleCollection));

            return (DoubleCollection)converter.ConvertFrom($"{showPrecent} {周长}");
        }

        public object[] ConvertBack(object value,Type[] targetTypes,object parameter,CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    public class Style3DashConverter :IValueConverter
    {
        public object Convert(object value,Type targetType,object parameter,CultureInfo culture)
        {
            double v = (double)value;

            if (v == 0)
            {
                return PenLineCap.Flat;
            }
            else
            {
                return PenLineCap.Round;
            }

        }

        public object ConvertBack(object value,Type targetType,object parameter,CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

}