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

namespace UILib
{
    public class BoolVisiableConverter : IValueConverter
    {
        public static BoolVisiableConverter Instance = new BoolVisiableConverter();
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is bool flag)
            {
                if (parameter?.ToString() == "REV")
                {
                    return flag ? Visibility.Collapsed : Visibility.Visible;
                }
                return flag ? Visibility.Visible : Visibility.Collapsed;
            }
            return Visibility.Collapsed;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is Visibility flag)
            {
                if (parameter?.ToString() == "REV")
                {
                    return flag == Visibility.Visible ? false : true;
                }
                return flag == Visibility.Visible ? true : false;
            }
            return false;
        }
    }
}