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

namespace Gestor.Application.Converters;

public class ActualHeightConverter : MarkupExtension, IValueConverter
{
	public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
	{
		if (value == null)
		{
			return 0;
		}
		return (double)value - 20.0;
	}

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

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