一個c#模擬時鐘的源代碼

2019-11-17 04:08:11

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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;

namespace AnalogClock
{

public class AnalogClock : System.Windows.Forms.Form
{
  private System.Windows.Forms.Timer timer1;
  private System.ComponentModel.IContainer components;

  public AnalogClock()
  {

   InitializeComponent();
   //初始化；


  }


  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if (components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }

  #region Windows Form Designer generated code

  private void InitializeComponent()
  {
   this.components = new System.ComponentModel.Container();
   System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(AnalogClock));
   this.timer1 = new System.Windows.Forms.Timer(this.components);
   //
   // timer1
   //
   this.timer1.Enabled = true;
   this.timer1.Interval = 1000;
   this.timer1.Tick += new System.EventHandler(this.OnTick);
   //
   // AnalogClock
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.BackColor = System.Drawing.SystemColors.Control;
   this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage")));
   this.ClientSize = new System.Drawing.Size(306, 271);
   this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
   this.MaximizeBox = false;
   this.Name = "AnalogClock";
   this.Text = "模擬時鐘 v1.1 neowang008";
   this.Load += new System.EventHandler(this.AnalogClock_Load);
   this.Paint += new System.Windows.Forms.PaintEventHandler(this.OnFormPaint);

  }
  #endregion


  [STAThread]
  static void Main()
  {
   application.Run(new AnalogClock());
  }


  private void OnFormPaint(object sender, System.Windows.Forms.PaintEventArgs e)
  {
   Graphics g = e.Graphics;

   g.TranslateTransform(ClientSize.Width/2, ClientSize.Height/2, MatrixOrder.Append);

   DrawClock( e.Graphics );
  }

  private void DrawClock(Graphics g)
  {
   const double pai = Math.PI;
   Point center = new Point (0, 0);

   DateTime time = DateTime.Now;
   //讀取時間；
   double secAng = 2.0*pai*time.Second/60.0;
   double minAng = 2.0*pai*(time.Minute + time.Second/60.0)/60.0;
   double hourAng = 2.0*pai*(time.Hour + time.Minute/60.0)/12.0;
   //各指針單位換算；
   int r = Math.Min( ClientSize.Width, ClientSize.Height ) / 2;
   int secHandLength = (int)(0.65*r);
   int minHandLength = (int)(0.6*r);
   int hourHandLength = (int)(0.5*r);
   //指針的長度定義；

   Point secHand = new Point((int)(secHandLength*Math.Sin(secAng)),
    (int)(-secHandLength*Math.Cos(secAng)));
   Point minHand = new Point((int)(minHandLength*Math.Sin(minAng)),
    (int)(-minHandLength*Math.Cos(minAng)));
   Point hourHand = new Point((int)(hourHandLength*Math.Sin(hourAng)),
    (int)(-hourHandLength*Math.Cos(hourAng)));
   //刷新指針；

   Pen SecPen = new Pen(Color.Red, 1);
   g.DrawLine(SecPen, center, secHand);

   Pen MinPen = new Pen(Color.RoyalBlue, 3);
   g.DrawLine(MinPen, center, minHand);

   Pen HourPen = new Pen(Color.CornflowerBlue, 5);
   g.DrawLine(HourPen, center, hourHand);
   //指針的樣式定義；
  }


  private void OnTick(object sender, System.EventArgs e)
  {
   Invalidate();
  }

  private void AnalogClock_Load(object sender, System.EventArgs e)
  {

  }
}
}

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