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250 lines
7.6 KiB
250 lines
7.6 KiB
using System;
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using System.Threading;
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using System.Threading.Tasks;
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using JetBrains.Annotations;
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namespace Ameliorated.ConsoleUtils
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{
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[AttributeUsage(AttributeTargets.Property)]
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internal sealed class OptionalAttribute : Attribute
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{
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}
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public static class ConsoleUtils
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{
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public class LoadingIndicator : IDisposable
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{
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public LoadingIndicator() {}
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public LoadingIndicator(bool start)
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{
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if (start)
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StartAsync();
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}
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private CancellationTokenSource cts = new CancellationTokenSource();
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Task currentTask = Task.CompletedTask;
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public async Task StartAsync()
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{
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Console.CursorVisible = false;
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cts = new CancellationTokenSource();
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currentTask = Task.Run(() =>
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{
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if (cts.IsCancellationRequested)
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{
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Console.WriteLine("...");
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return;
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}
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Console.Write('.');
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while (true)
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{
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Thread.Sleep(500);
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Console.Write('.');
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Thread.Sleep(500);
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Console.Write('.');
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Thread.Sleep(500);
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if (cts.IsCancellationRequested)
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{
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Console.WriteLine();
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return;
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}
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Console.Write("\b \b\b \b");
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}
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});
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await currentTask;
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}
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public void Stop()
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{
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cts.Cancel();
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currentTask.Wait();
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}
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public void Dispose()
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{
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Stop();
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this.currentTask = null;
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this.cts = null;
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}
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}
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public static bool DisplayErrors { get; set; } = true;
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public static void ClearInputBuffer()
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{
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while (Console.KeyAvailable) Console.ReadKey(true);
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}
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internal static void WriteError(string text)
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{
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if (DisplayErrors) Console.WriteLine("ConsoleUtils: " + text);
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}
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private static ConsoleColor foregroundCache;
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private static ConsoleColor backgroundCache;
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private static bool? foregroundOnly;
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internal static void SetColor([CanBeNull] ConsoleColor? foreground)
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{
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foregroundCache = Console.ForegroundColor;
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if (foreground.HasValue)
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Console.ForegroundColor = foreground.Value;
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foregroundOnly = true;
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}
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internal static void SetColor([CanBeNull] ConsoleColor? foreground, [CanBeNull] ConsoleColor? background)
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{
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foregroundCache = Console.ForegroundColor;
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backgroundCache = Console.BackgroundColor;
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if (foreground.HasValue)
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Console.ForegroundColor = foreground.Value;
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if (background.HasValue)
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Console.BackgroundColor = background.Value;
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foregroundOnly = false;
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}
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internal static void ResetColor()
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{
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if (!foregroundOnly.HasValue) throw new MethodAccessException("SetColor must be used before calling ResetColor.");
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if (foregroundOnly.Value)
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{
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Console.ForegroundColor = foregroundCache;
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} else
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{
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Console.ForegroundColor = foregroundCache;
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Console.BackgroundColor = backgroundCache;
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}
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foregroundOnly = null;
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}
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public static void WriteLine(string text, ConsoleColor? foreground)
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{
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foreach (var line in text.SplitByLine())
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{
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ConsoleUtils.SetColor(foreground);
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Console.WriteLine(line);
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ConsoleUtils.ResetColor();
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}
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}
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public static void WriteLine(string text, ConsoleColor? foreground, ConsoleColor? background)
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{
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foreach (var line in text.SplitByLine())
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{
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ConsoleUtils.SetColor(foreground);
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Console.WriteLine(line);
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ConsoleUtils.ResetColor();
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}
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}
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public static void WriteLine(string text, int offset)
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{
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foreach (var line in text.SplitByLine())
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{
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Console.WriteLine(line.Insert(0, new string(' ', offset)));
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}
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}
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public static void WriteLine(string text, int offset, ConsoleColor? foreground)
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{
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foreach (var line in text.SplitByLine())
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{
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Console.Write(new string(' ', offset));
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ConsoleUtils.SetColor(foreground);
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Console.WriteLine(line);
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ConsoleUtils.ResetColor();
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}
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}
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public static void WriteLine(string text, int offset, ConsoleColor? foreground, ConsoleColor? background)
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{
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foreach (var line in text.SplitByLine())
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{
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Console.Write(new string(' ', offset));
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ConsoleUtils.SetColor(foreground, background);
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Console.WriteLine(line);
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ConsoleUtils.ResetColor();
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}
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}
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public static void Write(string text, ConsoleColor? foreground)
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{
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foreach (var line in text.SplitByLine())
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{
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ConsoleUtils.SetColor(foreground);
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Console.Write(line);
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ConsoleUtils.ResetColor();
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}
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}
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public static void Write(string text, ConsoleColor? foreground, ConsoleColor? background)
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{
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foreach (var line in text.SplitByLine())
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{
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ConsoleUtils.SetColor(foreground);
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Console.Write(line);
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ConsoleUtils.ResetColor();
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}
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}
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public static void Write(string text, int offset)
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{
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foreach (var line in text.SplitByLine())
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{
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Console.Write(line.Insert(0, new string(' ', offset)));
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}
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}
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public static void Write(string text, int offset, ConsoleColor? foreground)
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{
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foreach (var line in text.SplitByLine())
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{
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Console.Write(new string(' ', offset));
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ConsoleUtils.SetColor(foreground);
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Console.Write(line);
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ConsoleUtils.ResetColor();
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}
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}
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public static void Write(string text, int offset, ConsoleColor? foreground, ConsoleColor? background)
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{
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foreach (var line in text.SplitByLine())
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{
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Console.Write(new string(' ', offset));
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ConsoleUtils.SetColor(foreground, background);
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Console.Write(line);
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ConsoleUtils.ResetColor();
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}
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}
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}
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}
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