2 /* -----------------------------------------------------------------------
3 * <copyright file="SizeExtensions.cs" company="GRNet">
5 * Copyright 2011-2012 GRNET S.A. All rights reserved.
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43 using System.Collections.Generic;
47 namespace Pithos.Client.WPF.FileProperties
49 public static class SizeExtensions
53 static readonly string[] SizeSuffixes = {
54 "B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" };
56 public static string ToByteSize(this long size)
59 const string formatTemplate = "{0}{1:0.#} {2}";
63 return string.Format(formatTemplate, null, 0, SizeSuffixes[0]);
66 var absSize = Math.Abs((double)size);
67 var fpPower = Math.Log(absSize, 1000);
68 var intPower = (int)fpPower;
69 var iUnit = intPower >= SizeSuffixes.Length
70 ? SizeSuffixes.Length - 1
72 var normSize = absSize / Math.Pow(1000, iUnit);
76 size < 0 ? "-" : null, normSize, SizeSuffixes[iUnit]);