GMap.NET.Core/GMap.NET.Internals/Stuff.cs

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namespace GMap.NET.Internals
{
   using System;
   using System.Collections.Generic;
   using System.ComponentModel;
   using System.IO;
   using System.Reflection;

   /// <summary>
   /// etc functions...
   /// </summary>
   internal class Stuff
   {
      public static string EnumToString(Enum value)
      {
         FieldInfo fi = value.GetType().GetField(value.ToString());
         DescriptionAttribute[] attributes =
                (DescriptionAttribute[])fi.GetCustomAttributes(
               typeof(DescriptionAttribute), false);

         return (attributes.Length > 0) ? attributes[0].Description : value.ToString();
      }

      [System.Runtime.InteropServices.DllImportAttribute("user32.dll", EntryPoint = "SetCursorPos")]
      [return: System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.Bool)]
      public static extern bool SetCursorPos(int X, int Y);

      static readonly Random random = new System.Random();

      public static void Shuffle<T>(List<T> deck)
      {
         int N = deck.Count;

         for(int i = 0; i < N; ++i)
         {
            int r = i + (int)(random.Next(N - i));
            T t = deck[r];
            deck[r] = deck[i];
            deck[i] = t;
         }
      }

      public static MemoryStream CopyStream(Stream inputStream, bool SeekOriginBegin)
      {
         const int readSize = 32 * 1024;
         byte[] buffer = new byte[readSize];
         MemoryStream ms = new MemoryStream();
         {
            int count = 0;
            while((count = inputStream.Read(buffer, 0, readSize)) > 0)
            {
               ms.Write(buffer, 0, count);
            }
         }
         buffer = null;
         if(SeekOriginBegin)
         {
            inputStream.Seek(0, SeekOrigin.Begin);
         }