84 lines
2.3 KiB
C#
84 lines
2.3 KiB
C#
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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using System.Threading.Tasks;
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namespace Debug;
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public class ModeSwitch
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{
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public event Action<int>? Enter;
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private readonly string[] str = ["退出"];
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private readonly int mode = 0;
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public ModeSwitch(string title, string[] a, Action<int> Enter)
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{
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this.Enter = Enter;
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str = a;
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Console.WriteLine(title);
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for (int i = 0; i < str.Length; i++)
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{
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Console.WriteLine($"{i}.{str[i]}");
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}
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do
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{
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Console.SetCursorPosition(CalculateActualLength($"{mode}.{str[mode]}") + 1, mode + 1);
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Console.Write('>');
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var key = Console.ReadKey(true);
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Console.SetCursorPosition(CalculateActualLength($"{mode}.{str[mode]}") + 1, mode + 1);
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Console.Write(' ');
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if (key.Key >= ConsoleKey.D0 && key.Key <= ConsoleKey.D9)
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{
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int v1 = int.Parse(key.KeyChar.ToString());
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if (v1 >= 0 && v1 < str.Length)
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mode = v1;
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}
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else
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switch (key.Key)
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{
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case ConsoleKey.UpArrow:
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case ConsoleKey.W:
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mode--;
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break;
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case ConsoleKey.S:
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case ConsoleKey.DownArrow:
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mode++;
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break;
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case ConsoleKey.Enter:
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Enter?.Invoke(mode);
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return;
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default:
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break;
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}
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mode = int.Max(0, int.Min(str.Length - 1, mode));
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} while (true);
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//Console.CursorVisible = false;
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}
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private static int CalculateActualLength(string text)
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{
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Encoding encoding = Encoding.UTF8;
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int length = 0;
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foreach (char c in text)
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{
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byte[] bytes = encoding.GetBytes(c.ToString());
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if (bytes.Length > 1) // 汉字或宽字符
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length += 2;
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else
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length += 1;
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}
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return length;
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}
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public static void New(string title, string[] a, Action<int> Enter)
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{
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_ = new ModeSwitch(title, a, Enter);
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}
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}
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