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

namespace Gestor.Common.Converters
{
	public class ZeroToVisibilityConverter : MarkupExtension, IValueConverter
	{
		public ZeroToVisibilityConverter()
		{
		}

		public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
		{
			return (value == null || (int)Math.Round(double.Parse(value.ToString())) == 0 ? Visibility.Collapsed : Visibility.Visible);
		}

		public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
		{
			return (value == null || string.IsNullOrEmpty(value.ToString()) ? 0 : int.Parse(value.ToString()));
		}

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