Period Checkin

mdfinder/SizeConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace mdfinder
+{
+    public class SizeConverter : IValueConverter
+    {
+        /// <summary> Suffix for size. </summary>
+        private static readonly string[] SUFFIX = { "B", "KB", "MB", "GB", "TB", "PB", "EB" };
+
+        /// <summary> Converts a value. </summary>
+        /// <param name="value">      The value produced by the binding source. </param>
+        /// <param name="targetType"> The type of the binding target property. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
+        /// <remarks>
+        /// Thanks to user deepee1 on stackoverflow for the implementation.
+        /// https://stackoverflow.com/a/4975942/1210377.
+        /// </remarks>
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (value != null)
+            {
+                var size = (long)value;
+
+                if (size == 0)
+                {
+                    return "0" + SUFFIX[0];
+                }
+
+                int place = System.Convert.ToInt32(Math.Floor(Math.Log(size, 1024)));
+                double num = Math.Round(size / Math.Pow(1024, place), 1);
+                return (Math.Sign(size) * num).ToString() + SUFFIX[place];
+            }
+            else
+            {
+                return string.Empty;
+            }
+        }
+
+        /// <summary> Converts a value. </summary>
+        /// <param name="value">      The value that is produced by the binding target. </param>
+        /// <param name="targetType"> The type to convert to. </param>
+        /// <param name="parameter">  The converter parameter to use. </param>
+        /// <param name="culture">    The culture to use in the converter. </param>
+        /// <returns>
+        /// A converted value. If the method returns <see langword="null" />, the valid null value is
+        /// used.
+        /// </returns>
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotSupportedException();
+        }
+    }
+}