using System;
using System.Globalization;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace MMEA.Converters
{
    /// <summary>
    ///     Converter to inverse the boolean value for views
    /// </summary>
    public class InverseBoolConverter : IValueConverter, IMarkupExtension
    {
        /// <inheritdoc />
        public object ProvideValue(IServiceProvider serviceProvider)
        {
            return this;
        }

        /// <inheritdoc />
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return !(bool) value;
        }

        /// <inheritdoc />
        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            return !(bool) value;
        }
    }
}