app/windows/StreamPlayer.Desktop/Converters/InverseBooleanConverter.cs

using System;
using Avalonia.Data.Converters;

namespace StreamPlayer.Desktop.Converters;

public sealed class InverseBooleanConverter : IValueConverter
{
    public static readonly InverseBooleanConverter Instance = new();

    public object? Convert(object? value, Type targetType, object? parameter, System.Globalization.CultureInfo culture)
    {
        if (value is bool boolean)
        {
            return !boolean;
        }
        return Avalonia.AvaloniaProperty.UnsetValue;
    }

    public object? ConvertBack(object? value, Type targetType, object? parameter, System.Globalization.CultureInfo culture)
    {
        if (value is bool boolean)
        {
            return !boolean;
        }
        return Avalonia.AvaloniaProperty.UnsetValue;
    }
}