58 lines
2.7 KiB
C#
58 lines
2.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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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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using System.Windows.Forms;
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namespace WFA
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{
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public partial class Form1 : Form
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{
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public Form1()
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{
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InitializeComponent();
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ClockTimer_Tick(null, null);
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}
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private void Form1_Paint(object sender, PaintEventArgs e)
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{
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e.Graphics.Clear(this.BackColor);
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e.Graphics.DrawEllipse(Pens.Black, 20, 20, this.ClientSize.Width - 40, this.ClientSize.Width - 40);
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label1.Location = new Point(0, this.ClientSize.Width);
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this.Height = 40 + this.ClientSize.Width + label1.Height;
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int p1 = this.ClientSize.Width / 2;
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double angle = DateTime.Now.Second * 6 - 90;
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int p2x = (int)(p1 + Math.Cos((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 20));
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int p2y = (int)(p1 + Math.Sin((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 20));
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e.Graphics.DrawLine(Pens.Black, p1, p1, p2x, p2y);
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angle = (DateTime.Now.Minute + DateTime.Now.Second / 60f) * 6 - 90;
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p2x = (int)(p1 + Math.Cos((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 40));
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p2y = (int)(p1 + Math.Sin((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 40));
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e.Graphics.DrawLine(Pens.Black, p1, p1, p2x, p2y);
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angle = (DateTime.Now.Hour + DateTime.Now.Minute / 60f + DateTime.Now.Second / 3600f) * 30 - 90;
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p2x = (int)(p1 + Math.Cos((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 60));
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p2y = (int)(p1 + Math.Sin((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 60));
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e.Graphics.DrawLine(Pens.Black, p1, p1, p2x, p2y);
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for (int i = 0; i < 12; i++)
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{
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angle = i * 30 - 90;
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int p1x = (int)(p1 + Math.Cos((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 20));
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int p1y = (int)(p1 + Math.Sin((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 20));
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p2x = (int)(p1 + Math.Cos((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 20 - this.ClientSize.Width / 12));
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p2y = (int)(p1 + Math.Sin((Math.PI / 180.0) * angle) * (this.ClientSize.Width / 2 - 20 - this.ClientSize.Width / 12));
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e.Graphics.DrawLine(Pens.Black, p1x, p1y, p2x, p2y);
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}
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}
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private void ClockTimer_Tick(object sender, EventArgs e)
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{
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this.Refresh();
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label1.Text = DateTime.Now.ToString("HH:mm:ss");
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}
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}
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}
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