DiscordChatExporter/DiscordChatExporter.Gui/Converters/InverseBoolConverter.cs

using System;
using System.Globalization;
using System.Windows.Data;

namespace DiscordChatExporter.Gui.Converters;

[ValueConversion(typeof(bool), typeof(bool))]
public class InverseBoolConverter : IValueConverter
{
    public static InverseBoolConverter Instance { get; } = new();

    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is bool boolValue)
            return !boolValue;

        return default(bool);
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is bool boolValue)
            return !boolValue;

        return default(bool);
    }
}