wasSharpNET – Rev 11
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///////////////////////////////////////////////////////////////////////////
// Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3 //
// Please see: http://www.gnu.org/licenses/gpl.html for legal details, //
// rights of fair usage, the disclaimer and warranty conditions. //
///////////////////////////////////////////////////////////////////////////
using System;
using System.Threading;
using wasSharp.Collections.Generic;
namespace wasSharpNET.Console
{
///////////////////////////////////////////////////////////////////////////
// Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 //
///////////////////////////////////////////////////////////////////////////
/// <summary>
/// A command-line spinner indicating activity.
/// </summary>
public class ConsoleSpin : IDisposable
{
private static readonly CircularQueue<string> spinArt =
new CircularQueue<string>(new[] { ".oOo", "oOo.", "Oo.o", "o.oO" });
private static readonly ManualResetEvent spinEvent = new ManualResetEvent(false);
private static Thread spinThread;
private static bool run = true;
public ConsoleSpin() : this(ConsoleExtensions.ConsoleTextAlignment.TOP_LEFT)
{
}
public ConsoleSpin(ConsoleExtensions.ConsoleTextAlignment alignment)
{
spinThread = new Thread(() =>
{
while (run)
{
spinEvent.WaitOne();
var deco = spinArt.Dequeue();
deco.Write(alignment);
foreach (var c in deco)
"\b".Write(alignment);
Thread.Sleep(100);
}
})
{
IsBackground = true
};
spinThread.Start();
}
public void Dispose()
{
// Stop the callback thread.
try
{
if (spinThread != null)
{
run = false;
spinEvent.Reset();
if ((!spinThread.ThreadState.Equals(ThreadState.Running) &&
!spinThread.ThreadState.Equals(ThreadState.WaitSleepJoin)) || spinThread.Join(1000))
return;
spinThread.Abort();
spinThread.Join();
}
}
catch (Exception)
{
/* We are going down and we do not care. */
}
finally
{
spinThread = null;
}
}
public void Start()
{
spinEvent.Set();
}
public void Stop()
{
spinEvent.Reset();
}
}
}