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

namespace DTS.Common.Converters
{
    /// <summary>
    /// Represents the converter that converts Text (GroupName) values to and from <see cref="Visibility">Visibility</see>  enumeration values.
    /// </summary>
    public class GroupNameToVisibilityConverter : IValueConverter
    {
        /// <summary>
        /// Converts a Group Name value to a Visibility enumeration value.
        /// </summary>
        /// <param name="value">The Boolean value to convert. This value can be a standard Boolean value or a nullable Boolean value.</param>
        /// <param name="targetType">This parameter is not used.</param>
        /// <param name="parameter">The converter parameter to use.</param>
        /// <param name="culture">This parameter is not used.</param>
        /// <returns>The value to be passed to the target dependency property.</returns>
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value != null && value.ToString().Trim().StartsWith("Graph")) { return Visibility.Visible; }
            return Visibility.Collapsed;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="value">A Visibility enumeration value.</param>
        /// <param name="targetType">This parameter is not used.</param>
        /// <param name="parameter">This parameter is not used.</param>
        /// <param name="culture">This parameter is not used.</param>
        /// <returns>The value to be passed to the source object.</returns>
        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return null;
        }
    }
}