using System;
using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Runtime.InteropServices;
using System.Threading;

namespace AnalogClock {
	public class MyClock : Form {
		private System.Windows.Forms.Timer timer1;
		private const int MIDX = 120;
		private const int MIDY = 120;

		private System.ComponentModel.IContainer components;

		public MyClock() {
			InitializeComponent();
			this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
			this.SetStyle(ControlStyles.UserPaint, true);
			this.SetStyle(ControlStyles.DoubleBuffer, true);
			//this.Cursor = new Cursor("c:\\swf\\winforms\\PaintBrushToolCursor.cur");
			this.Cursor = new Cursor("c:\\swf\\winforms\\pb.cur");
		}

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

		private void InitializeComponent() {
			this.components = new System.ComponentModel.Container();
			timer1 = new System.Windows.Forms.Timer();
			this.SuspendLayout();

			timer1.Enabled = true;
			timer1.Interval = 1000;
			timer1.Start();
			timer1.Tick += new EventHandler(Timer_Tick);

			this.FormBorderStyle = FormBorderStyle.FixedSingle;
			this.MaximizeBox = false;
			this.Name = "MyClock";
			this.Paint += new PaintEventHandler(f1_paint);
			this.Text = "Analogue clock";
			this.Size = new Size(255, 270);
			this.Font = new Font("Arial", 12F, FontStyle.Regular, GraphicsUnit.Point,
				((System.Byte)(0)));

			this.ResumeLayout(false);
		}

		static void Main() {
			Application.Run(new MyClock());
		}

		public class PEA : PaintEventArgs {
			public PEA (Graphics g, Rectangle clip) : base(g, clip) {
			}

			~PEA() {
				Dispose(true);
			}

			protected override void Dispose(bool disposing) {
				Console.WriteLine("Disposing PEA, {0}", disposing);
				base.Dispose (disposing);
			}

		}

		private void Timer_Tick(object sender, System.EventArgs e) {
			if (sender == timer1) {
				Invalidate();
			}
		}

		void SubPaint(PaintEventArgs e) {
			//PaintEventArgs f;
			PEA f;

			//f = new PaintEventArgs(e.Graphics, e.ClipRectangle);
			f = new PEA(e.Graphics, e.ClipRectangle);
			Console.WriteLine("e.Hash={0:X}, f.Hash={1:X}", e.Graphics.GetHashCode(), f.Graphics.GetHashCode());
		}

		protected override void OnPaint(PaintEventArgs e) {
			SubPaint(e);
			GC.Collect();
			base.OnPaint (e);
		}


		private static void f1_paint(object sender, PaintEventArgs e) {
			Graphics g = e.Graphics;
			Rectangle rect = new Rectangle(20, 20, 230, 230);
			LinearGradientBrush linearBrush = new LinearGradientBrush
				(rect, Color.FromArgb(0, 0, 0), Color.FromArgb(120, 120, 255), 225);
  
			g.FillEllipse(linearBrush, 20, 20, 200, 200);

			linearBrush.LinearColors = new Color[] {Color.FromArgb(120, 120, 255),
								       Color.FromArgb(0, 0, 0)};

			g.FillEllipse(linearBrush, 30, 30, 180, 180);

			linearBrush.LinearColors = new Color[] {Color.FromArgb(0, 0, 0),
								       Color.FromArgb(120, 120, 255)};

			g.FillEllipse(linearBrush, 33, 33, 174, 174);

			SolidBrush numeralBrush = new SolidBrush(Color.White);

			Font textFont = new Font("Arial Bold", 12F);

			g.DrawString("12", textFont, numeralBrush, 109, 40 );
			g.DrawString("11", textFont, numeralBrush, 75, 50);
			g.DrawString("10", textFont, numeralBrush, 47, 75);
			g.DrawString("9", textFont, numeralBrush, 43, 110);
			g.DrawString("8", textFont, numeralBrush, 52, 145);
			g.DrawString("7", textFont, numeralBrush, 75, 170);
			g.DrawString("6", textFont, numeralBrush, 113, 180);
			g.DrawString("5", textFont, numeralBrush, 150, 170);
			g.DrawString("4", textFont, numeralBrush, 173, 145);
			g.DrawString("3", textFont, numeralBrush, 182, 110);
			g.DrawString("2", textFont, numeralBrush, 173, 75);
			g.DrawString("1", textFont, numeralBrush, 150, 50);

			g.TranslateTransform(120, 120, MatrixOrder.Append);

			int hour = DateTime.Now.Hour;
			int min = DateTime.Now.Minute;
			int sec = DateTime.Now.Second;

			SolidBrush hourBrush = new SolidBrush(Color.White);
			SolidBrush minuteBrush = new SolidBrush(Color.LightGray);
			Pen secondPen = new Pen(Color.Red, 1);

			double secondAngle = 2.0 * Math.PI * sec / 60.0;
			double minuteAngle = 2.0 * Math.PI * (min + sec / 60.0) / 60.0;
			double hourAngle = 2.0 * Math.PI * (hour + min / 60.0) / 12.0;

			Point centre = new Point(0, 0);

			GraphicsPath gpHour = new GraphicsPath();
			Point[] HourArrow = new Point[4] {
		new Point((int)(40 * Math.Sin(hourAngle)), (int)(-40 * Math.Cos(hourAngle))),
		new Point((int)(-5 * Math.Cos(hourAngle)), (int)(-5 * Math.Sin(hourAngle))),
		new Point((int)(5 * Math.Cos(hourAngle)), (int)(5 * Math.Sin(hourAngle))),
		new Point((int)(40 * Math.Sin(hourAngle)), (int)(-40 * Math.Cos(hourAngle)))
	};
			gpHour.AddPolygon(HourArrow);
			g.FillPath(hourBrush, gpHour);
			g.FillEllipse(hourBrush, -5, -5, 10, 10);

			GraphicsPath gpMinute = new GraphicsPath();
			Point[] MinuteArrow = new Point[4] {
		new Point((int)(70 * Math.Sin(minuteAngle)), (int)(-70 * Math.Cos(minuteAngle))),
		new Point((int)(-5 * Math.Cos(minuteAngle)), (int)(-5 * Math.Sin(minuteAngle))),
		new Point((int)(5 * Math.Cos(minuteAngle)), (int)(5 * Math.Sin(minuteAngle))),
		new Point((int)(70 * Math.Sin(minuteAngle)), (int)(-70 * Math.Cos(minuteAngle)))
	};
			gpMinute.AddPolygon(MinuteArrow);
			g.FillPath(minuteBrush, gpMinute);
			g.FillEllipse(minuteBrush, -5, -5, 10, 10);

			Point secHand = new Point((int)(70 * Math.Sin(secondAngle)),
				(int)(-70 * Math.Cos(secondAngle)));
			g.DrawLine(secondPen, centre, secHand);

			linearBrush.Dispose();
			numeralBrush.Dispose();
			textFont.Dispose();
			hourBrush.Dispose();
			minuteBrush.Dispose();
			secondPen.Dispose();
		}
	}
}