ApolloNewWorld/FurnaceNewWorld/UIModules/MaintainModule/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 MaintainModule.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"];
    }
}