using System;
using System.Drawing;
using System.Windows.Forms;
using System.Drawing.Drawing2D;

namespace SmartCoalApplication.Core.CustomControl
{
    /// <summary>
    /// 位置导航的圆形控件
    /// </summary>
    public partial class CircleControl : UserControl
    {
        /// <summary>
        /// 半径
        /// </summary>
        private int radius;
        private int smallRadius;
        private int location;
        public int position = 0;
        private Pen internalpen1 = new Pen(Color.Pink);
        private Pen internalpen2 = new Pen(Color.Pink);
        private Pen internalpen3 = new Pen(Color.Pink);
        private Pen internalpen4 = new Pen(Color.Pink);
        private Pen internalpen5 = new Pen(Color.Pink);
        private Pen internalpen6 = new Pen(Color.Pink);
        private Pen internalpen7 = new Pen(Color.Pink);
        private Pen internalpen8 = new Pen(Color.Pink);

        private Pen outpen1 = new Pen(Color.Black);
        private Pen outpen2 = new Pen(Color.Black);
        private Pen outpen3 = new Pen(Color.Black);
        private Pen outpen4 = new Pen(Color.Black);
        private Pen outpen5 = new Pen(Color.Black);
        private Pen outpen6 = new Pen(Color.Black);
        private Pen outpen7 = new Pen(Color.Black);
        private Pen outpen8 = new Pen(Color.Black);

        private GraphicsPath graphicsPath = new GraphicsPath();

        GraphicsPath internalLeft = new GraphicsPath();
        GraphicsPath internalLeftTop = new GraphicsPath();
        GraphicsPath internalTop = new GraphicsPath();
        GraphicsPath internalRightTop = new GraphicsPath();
        GraphicsPath internalRight = new GraphicsPath();
        GraphicsPath internalRightBottom = new GraphicsPath();
        GraphicsPath internalBottom = new GraphicsPath();
        GraphicsPath internalLeftBottom = new GraphicsPath();

        GraphicsPath outLeft = new GraphicsPath();
        GraphicsPath outLeftTop = new GraphicsPath();
        GraphicsPath outTop = new GraphicsPath();
        GraphicsPath outRightTop = new GraphicsPath();
        GraphicsPath outRight = new GraphicsPath();
        GraphicsPath outRightBottom = new GraphicsPath();
        GraphicsPath outBottom = new GraphicsPath();
        GraphicsPath outLeftBottom = new GraphicsPath();


        public CircleControl(int radius)
        {
            SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor, true);

            InitializeComponent();
            this.Size = new Size(radius*2+2, radius*2+2);
            this.radius = radius;
            this.smallRadius = (radius - 10)/2;
            this.location = (radius * 2 - smallRadius * 2) / 2;
            this.Paint += new PaintEventHandler(this.Control_Paint);
            this.MouseMove += new MouseEventHandler(this.Control_Move);
            this.MouseLeave += new EventHandler(this.Control_Leave);
            this.MouseClick += new MouseEventHandler(this.Control_Click);
            this.MouseDown += new MouseEventHandler(this.Control_MouseDown);
            this.MouseUp += new MouseEventHandler(this.Control_MouseUp);

            //double d = smallRadius / Math.Tan(90.0-22.5);
            //double x = Math.Sqrt(Math.Pow(d,2) - Math.Pow(smallRadius, 2));
            //int x1 = (int)((smallRadius * 2 - x) / 2);

            double d = smallRadius * 2 * Math.Sin(22.5 * Math.PI / 180);
            double x1 = (smallRadius * 2 - d*2) / 2;
            float d1 = (float)d;
            float x2 = (float)x1;

            internalLeft.AddPie(location, location, smallRadius*2, smallRadius * 2, 157.5f, 45f);
            internalLeftTop.AddPie(location, location, smallRadius*2, smallRadius * 2, 202.5f, 45f);
            internalTop.AddPie(location, location, smallRadius * 2, smallRadius * 2, 247.5f, 45f);
            internalRightTop.AddPie(location, location, smallRadius * 2, smallRadius * 2, 292.5f, 45f);
            internalRight.AddPie(location, location, smallRadius * 2, smallRadius * 2, 337.5f, 45f);
            internalRightBottom.AddPie(location, location, smallRadius * 2, smallRadius * 2, 22.5f, 45f);
            internalBottom.AddPie(location, location, smallRadius * 2, smallRadius * 2, 67.5f, 45f);
            internalLeftBottom.AddPie(location, location, smallRadius * 2, smallRadius * 2, 112.5f, 45f);

            outLeft.AddPie(0, 0, radius*2, radius * 2, 157.5f, 45f);
            outLeftTop.AddPie(0, 0, radius * 2, radius * 2, 202.5f, 45f);
            outTop.AddPie(0, 0, radius * 2, radius * 2, 247.5f, 45f);
            outRightTop.AddPie(0, 0, radius * 2, radius * 2, 292.5f, 45f);
            outRight.AddPie(0, 0, radius * 2, radius * 2, 337.5f, 45f);
            outRightBottom.AddPie(0, 0, radius * 2, radius * 2, 22.5f, 45f);
            outBottom.AddPie(0, 0, radius * 2, radius * 2, 67.5f, 45f);
            outLeftBottom.AddPie(0, 0, radius * 2, radius * 2, 112.5f, 45f);

            graphicsPath.AddEllipse(0, 0, radius * 2, radius * 2);
        }

        public event EventHandler clicked;
        public event EventHandler mouseUp;
        public event EventHandler mouseDown;

        private void Control_MouseDown(object sender, MouseEventArgs e)
        {
            OutMouseUpOrDown(e);
            if (!graphicsPath.IsVisible(e.Location))
            {
                this.Refresh();
                this.position = 9;
            }
            else
            {
                if (mouseDown != null)
                {
                    mouseDown(this, e);
                }
                Console.WriteLine(position.ToString());
            }
        }

        private void Control_MouseUp(object sender, MouseEventArgs e)
        {
            OutMouseUpOrDown(e);
            if (!graphicsPath.IsVisible(e.Location))
            {
                this.Refresh();
                this.position = 9;
            }
            else
            {
                if (mouseUp != null)
                {
                    mouseUp(this, e);
                }
                Console.WriteLine(position.ToString());
            }
        }

        private void Control_Click(object sender, MouseEventArgs e)
        {
            InternalClickEvent(e);
            OutClickEvent(e);
            if (!graphicsPath.IsVisible(e.Location))
            {
                this.Refresh();
                this.position = 0;
            }
            else
            {
                if (clicked != null)
                {
                    clicked(this, e);
                }
                Console.WriteLine(position.ToString());
                //MessageBox.Show("" + position);
            }
        }

        private void Control_Leave(object sender, EventArgs e)
        {
            InitPen();
            this.position = 0;
        }

        private void Control_Move(object sender, MouseEventArgs e)
        {
            InitPen();
            InternalMoveEvent(e);
            OutMoveEvent(e);
            if(!graphicsPath.IsVisible(e.Location))
            {
                InitPen();
                this.Refresh();
            }
        }

        private void Control_Paint(object sender, PaintEventArgs e)
        {

            e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;

            e.Graphics.DrawPath(outpen1, outLeft);
            e.Graphics.DrawPath(outpen2, outLeftTop);
            e.Graphics.DrawPath(outpen3, outTop);
            e.Graphics.DrawPath(outpen4, outRightTop);
            e.Graphics.DrawPath(outpen5, outRight);
            e.Graphics.DrawPath(outpen6, outRightBottom);
            e.Graphics.DrawPath(outpen7, outBottom);
            e.Graphics.DrawPath(outpen8, outLeftBottom);

            e.Graphics.DrawPath(internalpen1, internalLeft);
            e.Graphics.DrawPath(internalpen2, internalLeftTop);
            e.Graphics.DrawPath(internalpen3, internalTop);
            e.Graphics.DrawPath(internalpen4, internalRightTop);
            e.Graphics.DrawPath(internalpen5, internalRight);
            e.Graphics.DrawPath(internalpen6, internalRightBottom);
            e.Graphics.DrawPath(internalpen7, internalBottom);
            e.Graphics.DrawPath(internalpen8, internalLeftBottom);

            

            //e.Graphics.DrawEllipse(internalpen, 0, 0, radius*2, radius*2);
            //e.Graphics.DrawEllipse(internalpen, location, location, smallRadius*2, smallRadius*2);
            
        }

        private void InitPen()
        {
            internalpen1 = new Pen(Color.Pink);
            internalpen2 = new Pen(Color.Pink);
            internalpen3 = new Pen(Color.Pink);
            internalpen4 = new Pen(Color.Pink);
            internalpen5 = new Pen(Color.Pink);
            internalpen6 = new Pen(Color.Pink);
            internalpen7 = new Pen(Color.Pink);
            internalpen8 = new Pen(Color.Pink);

            outpen1 = new Pen(Color.Black);
            outpen2 = new Pen(Color.Black);
            outpen3 = new Pen(Color.Black);
            outpen4 = new Pen(Color.Black);
            outpen5 = new Pen(Color.Black);
            outpen6 = new Pen(Color.Black);
            outpen7 = new Pen(Color.Black);
            outpen8 = new Pen(Color.Black);
        }

        private void InternalMoveEvent(MouseEventArgs e)
        {
            if (internalLeft.IsVisible(e.Location))
            {
                internalpen1 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
            if (internalLeftTop.IsVisible(e.Location))
            {
                internalpen2 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
            if (internalTop.IsVisible(e.Location))
            {
                internalpen3 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
            if (internalRightTop.IsVisible(e.Location))
            {
                internalpen4 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
            if (internalRight.IsVisible(e.Location))
            {
                internalpen5 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
            if (internalRightBottom.IsVisible(e.Location))
            {
                internalpen6 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
            if (internalBottom.IsVisible(e.Location))
            {
                internalpen7 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
            if (internalLeftBottom.IsVisible(e.Location))
            {
                internalpen8 = new Pen(Color.Blue);
                this.Refresh();
                return;
            }
        }

        private void OutMoveEvent(MouseEventArgs e)
        {
            if (outLeft.IsVisible(e.Location) && !internalLeft.IsVisible(e.Location))
            {
                outpen1 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
            if (outLeftTop.IsVisible(e.Location) && !internalLeftTop.IsVisible(e.Location))
            {
                outpen2 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
            if (outTop.IsVisible(e.Location) && !internalTop.IsVisible(e.Location))
            {
                outpen3 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
            if (outRightTop.IsVisible(e.Location) && !internalRightTop.IsVisible(e.Location))
            {
                outpen4 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
            if (outRight.IsVisible(e.Location) && !internalRight.IsVisible(e.Location))
            {
                outpen5 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
            if (outRightBottom.IsVisible(e.Location) && !internalRightBottom.IsVisible(e.Location))
            {
                outpen6 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
            if (outBottom.IsVisible(e.Location) && !internalBottom.IsVisible(e.Location))
            {
                outpen7 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
            if (outLeftBottom.IsVisible(e.Location) && !internalLeftBottom.IsVisible(e.Location))
            {
                outpen8 = new Pen(Color.Red);
                this.Refresh();
                return;
            }
        }

        private void InternalClickEvent(MouseEventArgs e)
        {
            if (internalLeft.IsVisible(e.Location))
            {
                internalpen1 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 1;
                return;
            }
            if (internalLeftTop.IsVisible(e.Location))
            {
                internalpen2 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 2;
                return;
            }
            if (internalTop.IsVisible(e.Location))
            {
                internalpen3 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 3;
                return;
            }
            if (internalRightTop.IsVisible(e.Location))
            {
                internalpen4 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 4;
                return;
            }
            if (internalRight.IsVisible(e.Location))
            {
                internalpen5 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 5;
                return;
            }
            if (internalRightBottom.IsVisible(e.Location))
            {
                internalpen6 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 6;
                return;
            }
            if (internalBottom.IsVisible(e.Location))
            {
                internalpen7 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 7;
                return;
            }
            if (internalLeftBottom.IsVisible(e.Location))
            {
                internalpen8 = new Pen(Color.Blue);
                this.Refresh();
                this.position = 8;
                return;
            }
        }

        private void OutClickEvent(MouseEventArgs e)
        {
            if (outLeft.IsVisible(e.Location) && !internalLeft.IsVisible(e.Location))
            {
                outpen1 = new Pen(Color.Red);
                this.Refresh();
                this.position = 9;
                return;
            }
            if (outLeftTop.IsVisible(e.Location) && !internalLeftTop.IsVisible(e.Location))
            {
                outpen2 = new Pen(Color.Red);
                this.Refresh();
                this.position = 10;
                return;
            }
            if (outTop.IsVisible(e.Location) && !internalTop.IsVisible(e.Location))
            {
                outpen3 = new Pen(Color.Red);
                this.Refresh();
                this.position = 11;
                return;
            }
            if (outRightTop.IsVisible(e.Location) && !internalRightTop.IsVisible(e.Location))
            {
                outpen4 = new Pen(Color.Red);
                this.Refresh();
                this.position = 12;
                return;
            }
            if (outRight.IsVisible(e.Location) && !internalRight.IsVisible(e.Location))
            {
                outpen5 = new Pen(Color.Red);
                this.Refresh();
                this.position = 13;
                return;
            }
            if (outRightBottom.IsVisible(e.Location) && !internalRightBottom.IsVisible(e.Location))
            {
                outpen6 = new Pen(Color.Red);
                this.Refresh();
                this.position = 14;
                return;
            }
            if (outBottom.IsVisible(e.Location) && !internalBottom.IsVisible(e.Location))
            {
                outpen7 = new Pen(Color.Red);
                this.Refresh();
                this.position = 15;
                return;
            }
            if (outLeftBottom.IsVisible(e.Location) && !internalLeftBottom.IsVisible(e.Location))
            {
                outpen8 = new Pen(Color.Red);
                this.Refresh();
                this.position = 16;
                return;
            }
        }

        private void OutMouseUpOrDown(MouseEventArgs e)
        {
            if (outLeft.IsVisible(e.Location) && !internalLeft.IsVisible(e.Location))
            {
                outpen1 = new Pen(Color.Red);
                this.Refresh();
                this.position = 9;
                return;
            }
            if (outLeftTop.IsVisible(e.Location) && !internalLeftTop.IsVisible(e.Location))
            {
                outpen2 = new Pen(Color.Red);
                this.Refresh();
                this.position = 10;
                return;
            }
            if (outTop.IsVisible(e.Location) && !internalTop.IsVisible(e.Location))
            {
                outpen3 = new Pen(Color.Red);
                this.Refresh();
                this.position = 11;
                return;
            }
            if (outRightTop.IsVisible(e.Location) && !internalRightTop.IsVisible(e.Location))
            {
                outpen4 = new Pen(Color.Red);
                this.Refresh();
                this.position = 12;
                return;
            }
            if (outRight.IsVisible(e.Location) && !internalRight.IsVisible(e.Location))
            {
                outpen5 = new Pen(Color.Red);
                this.Refresh();
                this.position = 13;
                return;
            }
            if (outRightBottom.IsVisible(e.Location) && !internalRightBottom.IsVisible(e.Location))
            {
                outpen6 = new Pen(Color.Red);
                this.Refresh();
                this.position = 14;
                return;
            }
            if (outBottom.IsVisible(e.Location) && !internalBottom.IsVisible(e.Location))
            {
                outpen7 = new Pen(Color.Red);
                this.Refresh();
                this.position = 15;
                return;
            }
            if (outLeftBottom.IsVisible(e.Location) && !internalLeftBottom.IsVisible(e.Location))
            {
                outpen8 = new Pen(Color.Red);
                this.Refresh();
                this.position = 16;
                return;
            }
        }

    }
}