ApolloNewWorld/FurnaceNewWorld/UIModules/UniversalControls/Controls/SignalLight.xaml.cs

using System;
using System.Collections.Generic;
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 UniversalControls.Controls
{
    /// <summary>
    /// Interaction logic for SignalLight.xaml
    /// </summary>
    public partial class SignalLight : UserControl
    {
        public SignalLight()
        {
            InitializeComponent();
        }
        public bool IsOn
        {
            get { return (bool)GetValue(IsOnProperty); }
            set { SetValue(IsOnProperty, value); }
        }

        // Using a DependencyProperty as the backing store for IsOn.  This enables animation, styling, binding, etc...
        public static readonly DependencyProperty IsOnProperty =
            DependencyProperty.Register(nameof(IsOn), typeof(bool), typeof(SignalLight), new PropertyMetadata(false, PropertyChangedCallback));

        static void PropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            if (d is not SignalLight light)
                return;

            if (e.NewValue is not bool on)
                return;

            light.light.Fill = on ?
                (SolidColorBrush)Application.Current.Resources["NiceGreen"] :
                (SolidColorBrush)Application.Current.Resources["LightDisableColor"];
        }

    }
}