root / trunk / Pithos.Client.WPF / FileProperties / SizeExtensions.cs @ 255f5f86
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#region |
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/* ----------------------------------------------------------------------- |
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* <copyright file="SizeExtensions.cs" company="GRNet"> |
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* |
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* Copyright 2011-2012 GRNET S.A. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* |
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* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS |
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* The views and conclusions contained in the software and |
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* documentation are those of the authors and should not be |
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* interpreted as representing official policies, either expressed |
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* or implied, of GRNET S.A. |
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* </copyright> |
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* ----------------------------------------------------------------------- |
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*/ |
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#endregion |
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using System; |
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using System.Collections.Generic; |
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using System.Linq; |
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using System.Text; |
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|
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namespace Pithos.Client.WPF.FileProperties |
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{ |
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public static class SizeExtensions |
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{ |
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|
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|
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static readonly string[] SizeSuffixes = { |
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"B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB" }; |
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|
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public static string ToByteSize(this long size) |
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{ |
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|
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const string formatTemplate = "{0}{1:0.#} {2}"; |
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|
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if (size == 0) |
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{ |
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return string.Format(formatTemplate, null, 0, SizeSuffixes[0]); |
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} |
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|
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var absSize = Math.Abs((double)size); |
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var fpPower = Math.Log(absSize, 1000); |
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var intPower = (int)fpPower; |
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var iUnit = intPower >= SizeSuffixes.Length |
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? SizeSuffixes.Length - 1 |
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: intPower; |
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var normSize = absSize / Math.Pow(1000, iUnit); |
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|
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return string.Format( |
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formatTemplate, |
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size < 0 ? "-" : null, normSize, SizeSuffixes[iUnit]); |
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} |
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|
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} |
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} |