Artemis/src/Artemis.UI/Converters/InverseBooleanConverter.cs

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

namespace Artemis.UI.Converters
{
    [ValueConversion(typeof(bool), typeof(bool))]
    public class InverseBooleanConverter : IValueConverter
    {
        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter,
            CultureInfo culture)
        {
            if (targetType != typeof(bool))
                throw new InvalidOperationException("The target must be a boolean");

            return !(bool) value;
        }

        public object ConvertBack(object value, Type targetType, object parameter,
            CultureInfo culture)
        {
            throw new NotSupportedException();
        }

        #endregion
    }
}