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

namespace Gestor.Common.Converters;

public class NullVisibilityConverter : MarkupExtension, IValueConverter
{
	public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
	{
		return (object)(Visibility)((value == null) ? 2 : 0);
	}

	public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
	{
		return null;
	}

	public override object ProvideValue(IServiceProvider serviceProvider)
	{
		return this;
	}
}