using PaintDotNet.Annotation.Enum;
using PaintDotNet.Base.SettingModel;
using PaintDotNet.Base.CommTool;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Windows.Forms;

namespace PaintDotNet.Annotation.Measure
{
    using PointList = List<PointF>;
    /// <summary>
    /// 测量->圆->点到圆距离
    /// </summary>
    public class MeasurePointArcSize : MeasureDrawObject
    {
        /// <summary>
        /// 点集合
        /// </summary>
        public PointList pointArray;
        /// <summary>
        /// 样式
        /// </summary>
        private MeasureStyleModel.MeasurePointArcSize measurePointArcSize;
        /// <summary>
        /// 圆心横坐标
        /// </summary>
        double x0;
        /// <summary>
        /// 圆心纵坐标
        /// </summary>
        double y0;
        /// <summary>
        /// 直径
        /// </summary>
        double radius = 0;
        /// <summary>
        /// 直线与圆心的交点
        /// </summary>
        Point distantPoint;
        /// <summary>
        /// 距离
        /// </summary>
        //private double length = 0.0;
        private GraphicsPath areaPath = null;
        private Pen areaPen = null;
        private Region areaRegion = null;
        /// <summary>
        /// 测量信息矩形定义
        /// </summary>
        private RectangleF rectangleF1 = new RectangleF();
        private RectangleF rectangleF2 = new RectangleF();
        private RectangleF rectangleF3 = new RectangleF();
        private RectangleF rectangleF4 = new RectangleF();
        private RectangleF rectangleF5 = new RectangleF();
        private RectangleF rectangleF6 = new RectangleF();
        private RectangleF rectangleF7 = new RectangleF();
        private RectangleF rectangleF8 = new RectangleF();
        private RectangleF rectangleF9 = new RectangleF();
        private RectangleF rectangleF10 = new RectangleF();
        private RectangleF rectangleF11 = new RectangleF();
        private RectangleF rectangleF12 = new RectangleF();
        private RectangleF rectangleF13 = new RectangleF();
        private RectangleF rectangleF14 = new RectangleF();
        private RectangleF rectangleF15 = new RectangleF();
        private RectangleF rectangleF16 = new RectangleF();
        private RectangleF rectangleF17 = new RectangleF();
        /// <summary>
        /// 文本上用于拖动的点
        /// </summary>
        private Point pointL = new Point();
        /// <summary>
        /// 绘制限制(第一次绘制时)
        /// </summary>
        public bool pointChange = true;
        /// <summary>
        /// 区分移动文本
        /// </summary>
        private int moveKb;
        /// <summary>
        /// 绘制限制(从配置文件加载)
        /// </summary>
        public bool configurationFile = false;
        /// <summary>
        /// 绘制限制(更改属性时)
        /// </summary>
        private bool SavePointChange;
        /// <summary>
        /// 绘制属性
        /// </summary>
        private string[] drawingPropertiesList;
        /// <summary>
        /// 绘制属性(克隆)
        /// </summary>
        private string[] drawingPropertiesListClone;
        /// <summary>
        /// 限制绘制(绘制中)
        /// </summary>
        public bool mouseUpPointChange = false;
        public MeasurePointArcSize(ISurfaceBox surfaceBox) : base(surfaceBox)
        {
            this.objectType = DrawClass.Measure;
            this.drawToolType = DrawToolType.MeasurePointArcSize;
            measurePointArcSize = surfaceBox.GetMeasureStyleModel().measurePointArcSize;
            pointArray = new PointList();
            Initialize();
        }

        public MeasurePointArcSize(ISurfaceBox surfaceBox, int x1, int y1, bool clone) : base(surfaceBox)
        {
            this.objectType = DrawClass.Measure;
            this.drawToolType = DrawToolType.MeasurePointArcSize;

            measurePointArcSize = surfaceBox.GetMeasureStyleModel().measurePointArcSize;
            pointArray = new PointList();
            if (clone)
                pointArray.Add(new Point(x1, y1));
            this.measurementUnit = (MeasurementUnit)System.Enum.Parse(typeof(MeasurementUnit), surfaceBox.GetPxPerUnit()[0]);
            this.unitString = surfaceBox.GetPxPerUnit()[1];
            this.unit = surfaceBox.GetPxPerUnit()[2];
            
            Initialize();
        }

        public MeasurePointArcSize(ISurfaceBox surfaceBox, List<PointF> points, ParentStyleModel parentStyleModel, Object content) : base(surfaceBox)
        {
            this.objectType = DrawClass.Measure;
            this.drawToolType = DrawToolType.MeasurePointArcSize;
            this.ISurfaceBox = surfaceBox;

            measurePointArcSize = (MeasureStyleModel.MeasurePointArcSize)parentStyleModel;
            pointArray = DrawRulerHelper.DeepCopyListByReflect(points); 
            startPoint = points[0];
            this.measurementUnit = (MeasurementUnit)System.Enum.Parse(typeof(MeasurementUnit), surfaceBox.GetPxPerUnit()[0]);
            this.unitString = surfaceBox.GetPxPerUnit()[1];
            this.unit = surfaceBox.GetPxPerUnit()[2];
            
            this.configurationFile = true;
        }

        /// <summary>
        /// Clone this instance
        /// </summary>
        public override DrawObject Clone()
        {
            MeasurePointArcSize drawPointEdgeSize = new MeasurePointArcSize(ISurfaceBox, (int)pointArray[0].X, (int)pointArray[0].Y, false);
            drawPointEdgeSize.ISurfaceBox = ISurfaceBox;
            foreach (PointF p in this.pointArray)
            {
                drawPointEdgeSize.pointArray.Add(p);
            }
            if (drawingPropertiesList != null)
                drawPointEdgeSize.drawingPropertiesListClone = drawingPropertiesList;
            FillDrawObjectFields(drawPointEdgeSize);
            return drawPointEdgeSize;
        }

        public override DrawObject Clone(ISurfaceBox surfaceBox)
        {
            MeasurePointArcSize drawPointEdgeSize = new MeasurePointArcSize(surfaceBox, this.GetPoints(), this.measurePointArcSize, null);
            if (drawingPropertiesList != null)
                drawPointEdgeSize.drawingPropertiesListClone = drawingPropertiesList;
            FillDrawObjectFields(drawPointEdgeSize);
            return drawPointEdgeSize;
        }

        /// <summary>
        /// 测量属性
        /// </summary>
        /// <returns></returns>
        public override Dictionary<System.Enum, object> GetData()
        {
            if (data.ContainsKey(MeasureAttributes.MeasureMethod))
                data[MeasureAttributes.MeasureMethod] = PdnResources.GetString("Menu.MeasureAction.CircularMeasurement.Text");
            else
                data.Add(MeasureAttributes.MeasureMethod, PdnResources.GetString("Menu.MeasureAction.CircularMeasurement.Text"));

            if (data.ContainsKey(MeasureAttributes.MeasureUnitCN))
                data[MeasureAttributes.MeasureUnitCN] = this.unitString;
            else
                data.Add(MeasureAttributes.MeasureUnitCN, this.unitString);

            if (data.ContainsKey(MeasureAttributes.MeasureUnitEN))
                data[MeasureAttributes.MeasureUnitEN] = this.unit;
            else
                data.Add(MeasureAttributes.MeasureUnitEN, this.unit);

            if (data.ContainsKey(MeasureAttributes.PixelDistance))
                data[MeasureAttributes.PixelDistance] = Math.Round(this.length, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelDistance, Math.Round(this.length, decimalPlaces));

            string s = Math.Round(this.length * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int a = s.Length - s.IndexOf(".") - 1;
                if (a < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - a; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalDistance))
                data[MeasureAttributes.PhysicalDistance] = s;
            else
                data.Add(MeasureAttributes.PhysicalDistance, s);


            if (data.ContainsKey(MeasureAttributes.PixelArea))
                data[MeasureAttributes.PixelArea] = Math.Round(Math.PI * radius / 2 * radius / 2, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelArea, Math.Round(Math.PI * radius / 2 * radius / 2, decimalPlaces));

             s = Math.Round(Math.PI * radius / 2 * radius / 2 * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int dic = s.Length - s.IndexOf(".") - 1;
                if (dic < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - dic; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalArea))
                data[MeasureAttributes.PhysicalArea] = s;
            else
                data.Add(MeasureAttributes.PhysicalArea, s);

            if (data.ContainsKey(MeasureAttributes.PixelCircumference))
                data[MeasureAttributes.PixelCircumference] = Math.Round(Math.PI * radius , decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelCircumference, Math.Round(Math.PI * radius, decimalPlaces));

             s = Math.Round(Math.PI * radius * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int dic = s.Length - s.IndexOf(".") - 1;
                if (dic < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - dic; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalCircumference))
                data[MeasureAttributes.PhysicalCircumference] = s;
            else
                data.Add(MeasureAttributes.PhysicalCircumference, s);

            if (data.ContainsKey(MeasureAttributes.PixelCenterX))
                data[MeasureAttributes.PixelCenterX] = Math.Round(this.x0, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelCenterX, Math.Round(this.x0, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PixelCenterY))
                data[MeasureAttributes.PixelCenterY] = Math.Round(this.y0, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelCenterY, Math.Round(this.y0, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PhysicalCenterX))
                data[MeasureAttributes.PhysicalCenterX] = Math.Round(this.x0 * unitLength, decimalPlaces);
            else
                data.Add(MeasureAttributes.PhysicalCenterX, Math.Round(this.x0 * unitLength, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PhysicalCenterY))
                data[MeasureAttributes.PhysicalCenterY] = Math.Round(this.y0 * unitLength, decimalPlaces);
            else
                data.Add(MeasureAttributes.PhysicalCenterY, Math.Round(this.y0 * unitLength, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PixelRadius))
                data[MeasureAttributes.PixelRadius] = Math.Round(radius / 2, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelRadius, Math.Round(radius / 2, decimalPlaces));

             s = Math.Round(radius / 2 * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int dic = s.Length - s.IndexOf(".") - 1;
                if (dic < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - dic; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalRadius))
                data[MeasureAttributes.PhysicalRadius] = s;
            else
                data.Add(MeasureAttributes.PhysicalRadius, s);

            if (data.ContainsKey(MeasureAttributes.PixelDiameter))
                data[MeasureAttributes.PixelDiameter] = Math.Round(radius, decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelDiameter, Math.Round(radius, decimalPlaces));

             s = Math.Round(radius * unitLength, decimalPlaces).ToString();
            if (s.IndexOf(".") == -1)
            {
                for (int i = 0; i < decimalPlaces; i++)
                {
                    if (i == 0)
                        s += ".";
                    s += "0";
                }
            }
            else
            {
                int dic = s.Length - s.IndexOf(".") - 1;
                if (dic < decimalPlaces)
                {
                    for (int i = 0; i < decimalPlaces - dic; i++)
                    {
                        s += "0";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalDiameter))
                data[MeasureAttributes.PhysicalDiameter] = s;
            else
                data.Add(MeasureAttributes.PhysicalDiameter, s);

            return data;
        }
        
        GraphicsPath path = new GraphicsPath();
        
        public override void Draw(Graphics g)
        {
            path = new GraphicsPath();

            measurePointArcSize = this.ISurfaceBox.GetMeasureStyleModel().measurePointArcSize;

            drawingProperties.TryGetValue(this.drawToolType, out drawingPropertiesList);
            pointChangeObject.TryGetValue(this.drawToolType, out SavePointChange);
            Color color = Color.FromArgb(this.measurePointArcSize.lineColor);
            Pen pen = new Pen(color, PenWidth);
            int penWidth = this.measurePointArcSize.lineWidth;
            pen.DashStyle = (DashStyle)this.measurePointArcSize.lineStyle;
            pen.Width = penWidth;

            Font textfont = new Font(measurePointArcSize.font, measurePointArcSize.fontSize);
            Brush textbrush = new SolidBrush(Color.FromArgb(measurePointArcSize.textColor));
            Pen linePen = new Pen(Color.FromArgb(measurePointArcSize.lineColor), measurePointArcSize.lineWidth);
            linePen.DashStyle = (DashStyle)measurePointArcSize.lineStyle;

            if (this.Selected)
            {
                if (measurePointArcSize.chooseStyle != null)
                {
                    textfont = new Font(measurePointArcSize.chooseStyle.font, measurePointArcSize.chooseStyle.fontSize);
                    textbrush = new SolidBrush(Color.FromArgb(measurePointArcSize.chooseStyle.textColor));
                    linePen = new Pen(Color.FromArgb(measurePointArcSize.chooseStyle.lineColor), measurePointArcSize.chooseStyle.lineWidth);
                    linePen.DashStyle = (DashStyle)measurePointArcSize.chooseStyle.lineStyle;
                }
            }

            if (!this.Selected)
            {
                this.pointChange = true;
                rectangleF1 = new RectangleF();
                rectangleF2 = new RectangleF();
                rectangleF3 = new RectangleF();
                rectangleF4 = new RectangleF();
                rectangleF5 = new RectangleF();
                rectangleF6 = new RectangleF();
                rectangleF7 = new RectangleF();
                rectangleF8 = new RectangleF();
                rectangleF9 = new RectangleF();
                rectangleF10 = new RectangleF();
                rectangleF11 = new RectangleF();
                rectangleF12 = new RectangleF();
                rectangleF13 = new RectangleF();
                rectangleF14 = new RectangleF();
                rectangleF15 = new RectangleF();
                rectangleF16 = new RectangleF();
                rectangleF17 = new RectangleF();
            }

            g.SmoothingMode = SmoothingMode.AntiAlias;

            if (HandleCount - 1 == 2) {
                g.DrawLine(linePen, pointArray[0].X, pointArray[0].Y, pointArray[1].X, pointArray[1].Y);
            }

            string frontStr = string.Empty;

            if (this.measurePointArcSize.showSuffix)
            {
                frontStr = this.measurePointArcSize.suffixName;
            }

            if (this.measurePointArcSize.showSerial)
            {
                #region [获取序号]

                List<DrawObject> newGraphicsList = new List<DrawObject>();

                int n = ISurfaceBox.GraphicsList.Count;

                int num = 0;

                for (int i = n - 1; i >= 0; i--)
                {
                    newGraphicsList.Add(ISurfaceBox.GraphicsList[i].Clone());
                }

                var newGraphics = newGraphicsList.Where(m => m.ID.Equals(this.ID)).FirstOrDefault();

                if (newGraphics != null)
                {
                    num = newGraphicsList.IndexOf(newGraphics) + 1;
                }

                #endregion

                frontStr = $"[{ num }]{frontStr}";
            }

            if (this.measurePointArcSize.showAlias)
            {
                frontStr = this.measurePointArcSize.aliasName + frontStr;
            }

            if (HandleCount - 1 > 2)
            {
                if (drawingPropertiesList == null)
                {
                    drawingPropertiesList = drawingPropertiesListClone;
                    this.configurationFile = true;
                }
                
                double a = pointArray[0].X - pointArray[1].X;
                double b = pointArray[0].Y - pointArray[1].Y;
                double c = pointArray[0].X - pointArray[2].X;
                double d = pointArray[0].Y - pointArray[2].Y;
                double e = ((pointArray[0].X * pointArray[0].X - pointArray[1].X * pointArray[1].X)
                    + (pointArray[0].Y * pointArray[0].Y - pointArray[1].Y * pointArray[1].Y)) / 2.0;
                double f = ((pointArray[0].X * pointArray[0].X - pointArray[2].X * pointArray[2].X)
                    + (pointArray[0].Y * pointArray[0].Y - pointArray[2].Y * pointArray[2].Y)) / 2.0;
                double det = b * c - a * d;

                if (Math.Abs(det) > 0.001)
                {
                    //x0,y0为计算得到的原点
                    x0 = -(d * e - b * f) / det;
                    y0 = -(a * f - c * e) / det;

                    radius = Math.Sqrt((pointArray[0].X - x0) * (pointArray[0].X - x0) + (pointArray[0].Y - y0) * (pointArray[0].Y - y0));
                    double angle1;
                    double angle2;
                    double angle3;
                    double sinValue1;
                    double cosValue1;
                    double sinValue2;
                    double cosValue2;
                    double sinValue3;
                    double cosValue3;

                    sinValue1 = (pointArray[0].Y - y0) / radius; cosValue1 = (pointArray[0].X - x0) / radius;
                    if (cosValue1 >= 0.99999)
                        cosValue1 = 0.99999;
                    if (cosValue1 <= -0.99999)
                        cosValue1 = -0.99999;

                    angle1 = Math.Acos(cosValue1); angle1 = angle1 / 3.14 * 180;
                    if (sinValue1 < -0.05)
                        angle1 = 360 - angle1;

                    sinValue2 = (pointArray[1].Y - y0) / radius; cosValue2 = (pointArray[1].X - x0) / radius;
                    if (cosValue2 >= 0.99999)
                        cosValue2 = 0.99999;
                    if (cosValue2 <= -0.99999)
                        cosValue2 = -0.99999;
                    angle2 = Math.Acos(cosValue2);

                    angle2 = angle2 / 3.14 * 180;
                    if (sinValue2 < -0.05)
                        angle2 = 360 - angle2;

                    sinValue3 = (pointArray[2].Y - y0) / radius; cosValue3 = (pointArray[2].X - x0) / radius;
                    if (cosValue3 >= 0.99999)
                        cosValue3 = 0.99999;
                    if (cosValue3 <= -0.99999)
                        cosValue3 = -0.99999;

                    angle3 = Math.Acos(cosValue3); angle3 = angle3 / 3.14 * 180;
                    if (sinValue3 < -0.05)
                        angle3 = 360 - angle3;

                    bool PosDown = false;
                    double Delta13;

                    if (angle1 < angle3)
                    {
                        Delta13 = angle3 - angle1;
                    }
                    else
                        Delta13 = angle3 - angle1 + 360;
                    double Delta12;
                    if (angle1 < angle2)
                    {
                        Delta12 = angle2 - angle1;
                    }
                    else
                        Delta12 = angle2 - angle1 + 360;
                    if (Delta13 > Delta12)
                        PosDown = true;
                    else
                        PosDown = false;
                    double radius1 = radius + 5;
                    if (PosDown)
                    {
                        if (angle3 > angle1)
                        {
                            g.DrawArc(pen, (int)(x0 - radius), (int)(y0 - radius),
                               (int)(2 * radius), (int)(2 * radius), (int)(angle1), (int)(angle3 - angle1));
                            path.AddArc((int)(x0 - radius1), (int)(y0 - radius1),
                               (int)(2 * radius1), (int)(2 * radius1), (int)(angle1), (int)(angle3 - angle1));
                        }
                        else
                        {
                            g.DrawArc(pen, (int)(x0 - radius), (int)(y0 - radius),
                               (int)(2 * radius), (int)(2 * radius), (int)(angle1), (int)(angle3 - angle1 + 360));
                            path.AddArc((int)(x0 - radius1), (int)(y0 - radius1),
                               (int)(2 * radius1), (int)(2 * radius1), (int)(angle1), (int)(angle3 - angle1 + 360));
                        }
                    }
                    else
                    {
                        if (angle1 > angle3)
                        {
                            g.DrawArc(pen, (int)(x0 - radius), (int)(y0 - radius),
                                                         (int)(2 * radius), (int)(2 * radius), (int)(angle3), (int)(angle1 - angle3));
                            path.AddArc((int)(x0 - radius1), (int)(y0 - radius1),
                                                         (int)(2 * radius1), (int)(2 * radius1), (int)(angle3), (int)(angle1 - angle3));
                        }
                        else
                        {
                            g.DrawArc(pen, (int)(x0 - radius), (int)(y0 - radius),
                                                        (int)(2 * radius), (int)(2 * radius), (int)(angle3), (int)(angle1 - angle3 + 360));
                            path.AddArc((int)(x0 - radius1), (int)(y0 - radius1),
                                                        (int)(2 * radius1), (int)(2 * radius1), (int)(angle3), (int)(angle1 - angle3 + 360));
                        }
                    }

                }

                float x1 = pointArray[0].X;
                float y1 = pointArray[0].Y;
                float x2 = pointArray[1].X;
                float y2 = pointArray[1].Y;
                float x3 = pointArray[2].X;
                float y3 = pointArray[2].Y;

                 a = x1 - x2;
                 b = y1 - y2;
                 c = x1 - x3;
                 d = y1 - y3;
                 e = ((x1 * x1 - x2 * x2) + (y1 * y1 - y2 * y2)) / 2.0;
                 f = ((x1 * x1 - x3 * x3) + (y1 * y1 - y3 * y3)) / 2.0;

                 x0 = x1;
                 y0 = y1;

                double det1 = b * c - a * d;

                if (Math.Abs(det1) > 0.001)
                {
                    //x0,y0为计算得到的原点
                    x0 = -(d * e - b * f) / det1;
                    y0 = -(a * f - c * e) / det1;

                    radius = Math.Round(Math.Sqrt((x1 - x0) * (x1 - x0) + (y1 - y0) * (y1 - y0)) * 2, 2);
                }
                
                rectangle.X = Convert.ToInt32(x0 - radius / 2);
                rectangle.Y = Convert.ToInt32(y0 - radius / 2);
                rectangle.Width = Convert.ToInt32(radius);
                rectangle.Height = Convert.ToInt32(radius);

                if (HandleCount - 1 == 4)
                {
                    if (drawingPropertiesList == null)
                    {
                        drawingPropertiesList = drawingPropertiesListClone;
                        this.configurationFile = true;
                    }
                    SizeF sizeF1 = new SizeF();
                
                    double towPointDistance = BasicCalculationHelper.GetDistance(new Point(Convert.ToInt32(x0), Convert.ToInt32(y0)), new PointF(pointArray[3].X, pointArray[3].Y), 2);
                    double edgeSize = Math.Abs(towPointDistance - (radius / 2));

                    double arrowAngle = BasicCalculationHelper.CalculateAngle(x0, y0, x0 - radius / 2, y0, pointArray[3].X, pointArray[3].Y);
                    if (pointArray[3].X - x0 >= 0 && pointArray[3].Y - y0 <= 0)
                    {
                        arrowAngle = arrowAngle + 180;
                    }
                    if (pointArray[3].X - x0 >= 0 && pointArray[3].Y - y0 >= 0)
                    {
                        arrowAngle = arrowAngle - 180;
                    }

                    distantPoint = BasicCalculationHelper.GetAnglePoint(new Point(Convert.ToInt32(x0 - radius / 2), Convert.ToInt32(y0)), new Point(Convert.ToInt32(x0), Convert.ToInt32(y0)), arrowAngle);

                    System.Drawing.Region region = new Region(path);
                  double length =  BasicCalculationHelper.GetDistance(distantPoint, pointArray[0], 0);
                    double length1 = BasicCalculationHelper.GetDistance(distantPoint, pointArray[2], 0);

                    if (!region.IsVisible(distantPoint))
                    {
                        if(length >= length1)
                        {
                            pointArray[3] = BasicCalculationHelper.GetIntersection(new PointF((float)x0, (float)y0), pointArray[2], pointArray[3], new PointF(pointArray[3].X + 10, pointArray[3].Y));
                            distantPoint = new Point((int)pointArray[2].X, (int)pointArray[2].Y);
                        }
                        else
                        {
                            pointArray[3] = BasicCalculationHelper.GetIntersection(new PointF((float)x0, (float)y0), pointArray[0], pointArray[3], new PointF(pointArray[3].X + 10, pointArray[3].Y));
                            distantPoint = new Point((int)pointArray[0].X, (int)pointArray[0].Y);
                        }
                    }
                    g.DrawLine(linePen, pointArray[3].X, pointArray[3].Y, distantPoint.X, distantPoint.Y);
                    this.length = edgeSize;
                    if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                    {
                        int offsetValue = measurePointArcSize.fontSize + measurePointArcSize.fontSize / 2;
                        int offsetValue1 = measurePointArcSize.lineWidth * 2 / 3;
                        int offset = offsetValue1;
                        this.pointL = new Point((int)pointArray[0].X, (int)pointArray[0].Y);
                        if (drawingPropertiesList != null)
                        {
                            if (drawingPropertiesList.Contains(MeasureAttributes.PixelDistance.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.length, decimalPlaces) + "px", textfont);
                                rectangleF16.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDistance.ToString()))
                            {
                                string s = Math.Round(this.length * unitLength, decimalPlaces).ToString();
                                if (s.IndexOf(".") == -1)
                                {
                                    for (int i = 0; i < decimalPlaces; i++)
                                    {
                                        if (i == 0)
                                            s += ".";
                                        s += "0";
                                    }
                                }
                                else
                                {
                                    int dic = s.Length - s.IndexOf(".") - 1;
                                    if (dic < decimalPlaces)
                                    {
                                        for (int i = 0; i < decimalPlaces - dic; i++)
                                        {
                                            s += "0";
                                        }
                                    }
                                }
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.length * unitLength, decimalPlaces) + this.unit, textfont);
                                rectangleF17.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PixelRadius.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(radius / 2, decimalPlaces) + "px", textfont);
                                rectangleF12.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalRadius.ToString()))
                            {
                                string s = Math.Round(radius / 2 * unitLength, decimalPlaces).ToString();
                                if (s.IndexOf(".") == -1)
                                {
                                    for (int i = 0; i < decimalPlaces; i++)
                                    {
                                        if (i == 0)
                                            s += ".";
                                        s += "0";
                                    }
                                }
                                else
                                {
                                    int dic = s.Length - s.IndexOf(".") - 1;
                                    if (dic < decimalPlaces)
                                    {
                                        for (int i = 0; i < decimalPlaces - dic; i++)
                                        {
                                            s += "0";
                                        }
                                    }
                                }
                                sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                                rectangleF13.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PixelDiameter.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(radius, decimalPlaces) + "px", textfont);
                                rectangleF14.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDiameter.ToString()))
                            {
                                string s = Math.Round(radius * unitLength, decimalPlaces).ToString();
                                if (s.IndexOf(".") == -1)
                                {
                                    for (int i = 0; i < decimalPlaces; i++)
                                    {
                                        if (i == 0)
                                            s += ".";
                                        s += "0";
                                    }
                                }
                                else
                                {
                                    int dic = s.Length - s.IndexOf(".") - 1;
                                    if (dic < decimalPlaces)
                                    {
                                        for (int i = 0; i < decimalPlaces - dic; i++)
                                        {
                                            s += "0";
                                        }
                                    }
                                }
                                sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                                rectangleF15.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PixelCircumference.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(Math.PI * radius, decimalPlaces) + "px", textfont);
                                rectangleF6.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCircumference.ToString()))
                            {
                                string s = Math.Round(Math.PI * radius * unitLength, decimalPlaces).ToString();
                                if (s.IndexOf(".") == -1)
                                {
                                    for (int i = 0; i < decimalPlaces; i++)
                                    {
                                        if (i == 0)
                                            s += ".";
                                        s += "0";
                                    }
                                }
                                else
                                {
                                    int dic = s.Length - s.IndexOf(".") - 1;
                                    if (dic < decimalPlaces)
                                    {
                                        for (int i = 0; i < decimalPlaces - dic; i++)
                                        {
                                            s += "0";
                                        }
                                    }
                                }

                                sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                                rectangleF7.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PixelArea.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(Math.PI * (radius / 2) * (radius / 2), decimalPlaces) + "px²", textfont);
                                rectangleF4.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalArea.ToString()))
                            {
                                string s = Math.Round(Math.PI * (radius / 2) * (radius / 2) * unitLength, decimalPlaces).ToString();
                                if (s.IndexOf(".") == -1)
                                {
                                    for (int i = 0; i < decimalPlaces; i++)
                                    {
                                        if (i == 0)
                                            s += ".";
                                        s += "0";
                                    }
                                }
                                else
                                {
                                    int dic = s.Length - s.IndexOf(".") - 1;
                                    if (dic < decimalPlaces)
                                    {
                                        for (int i = 0; i < decimalPlaces - dic; i++)
                                        {
                                            s += "0";
                                        }
                                    }
                                }
                                sizeF1 = g.MeasureString(frontStr + s + this.unit + "²", textfont);
                                rectangleF5.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterX.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.x0, decimalPlaces), textfont);
                                rectangleF8.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterY.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.y0, decimalPlaces), textfont);
                                rectangleF9.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterX.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.x0 * unitLength, decimalPlaces), textfont);
                                rectangleF10.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterY.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.y0 * unitLength, decimalPlaces), textfont);
                                rectangleF11.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.MeasureMethod.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + PdnResources.GetString("Menu.MeasureAction.CircularMeasurement.Text"), textfont);
                                rectangleF1.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitCN.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + this.unitString, textfont);
                                rectangleF2.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                            if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitEN.ToString()))
                            {
                                sizeF1 = g.MeasureString(frontStr + "" + this.unit, textfont);
                                rectangleF3.Location = new Point((int)pointArray[0].X + offsetValue1 - (int)sizeF1.Width / 2, (int)pointArray[0].Y + offset);
                                offset += offsetValue;
                            }
                        }
                    }
                    if (drawingPropertiesList != null)
                    {
                      
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureMethod.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + PdnResources.GetString("Menu.MeasureAction.CircularMeasurement.Text"), textfont);
                            rectangleF1.Width = sizeF1.Width;
                            rectangleF1.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + PdnResources.GetString("Menu.MeasureAction.CircularMeasurement.Text"), textfont, textbrush, rectangleF1);
                        }
                        else
                        {
                            rectangleF1 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitCN.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + this.unitString, textfont);
                            rectangleF2.Width = sizeF1.Width;
                            rectangleF2.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + this.unitString, textfont, textbrush, rectangleF2);
                        }
                        else
                        {
                            rectangleF2 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitEN.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + this.unit, textfont);
                            rectangleF3.Width = sizeF1.Width;
                            rectangleF3.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + this.unit, textfont, textbrush, rectangleF3);
                        }
                        else
                        {
                            rectangleF3 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelArea.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(Math.PI * (radius / 2) * (radius / 2), decimalPlaces) + "px²", textfont);
                            rectangleF4.Width = sizeF1.Width;
                            rectangleF4.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(Math.PI * (radius / 2) * (radius / 2), decimalPlaces) + "px²", textfont, textbrush, rectangleF4);
                        }
                        else
                        {
                            rectangleF4 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalArea.ToString()))
                        {
                            string s = Math.Round(Math.PI * (radius / 2) * (radius / 2) * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit + "²", textfont);
                            rectangleF5.Width = sizeF1.Width;
                            rectangleF5.Height = sizeF1.Height;
                            g.DrawString(frontStr + s + this.unit + "²", textfont, textbrush, rectangleF5);
                        }
                        else
                        {
                            rectangleF5 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelCircumference.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(Math.PI * radius, decimalPlaces) + "px", textfont);
                            rectangleF6.Width = sizeF1.Width;
                            rectangleF6.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(Math.PI * radius, decimalPlaces) + "px", textfont, textbrush, rectangleF6);
                        }
                        else
                        {
                            rectangleF6 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCircumference.ToString()))
                        {
                            string s = Math.Round(Math.PI * radius * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }

                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF7.Width = sizeF1.Width;
                            rectangleF7.Height = sizeF1.Height;
                            g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF7);
                        }
                        else
                        {
                            rectangleF7 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterX.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.x0, decimalPlaces), textfont);
                            rectangleF8.Width = sizeF1.Width;
                            rectangleF8.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(this.x0, decimalPlaces), textfont, textbrush, rectangleF8);
                        }
                        else
                        {
                            rectangleF8 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelCenterY.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.y0, decimalPlaces), textfont);
                            rectangleF9.Width = sizeF1.Width;
                            rectangleF9.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(this.y0, decimalPlaces), textfont, textbrush, rectangleF9);
                        }
                        else
                        {
                            rectangleF9 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterX.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.x0 * unitLength, decimalPlaces), textfont);
                            rectangleF10.Width = sizeF1.Width;
                            rectangleF10.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(this.x0 * unitLength, decimalPlaces), textfont, textbrush, rectangleF10);
                        }
                        else
                        {
                            rectangleF10 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalCenterY.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.y0 * unitLength, decimalPlaces), textfont);
                            rectangleF11.Width = sizeF1.Width;
                            rectangleF11.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(this.y0 * unitLength, decimalPlaces), textfont, textbrush, rectangleF11);
                        }
                        else
                        {
                            rectangleF11 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelRadius.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(radius / 2, decimalPlaces) + "px", textfont);
                            rectangleF12.Width = sizeF1.Width;
                            rectangleF12.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(radius / 2, decimalPlaces) + "px", textfont, textbrush, rectangleF12);
                        }
                        else
                        {
                            rectangleF12 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalRadius.ToString()))
                        {
                            string s = Math.Round(radius / 2 * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF13.Width = sizeF1.Width;
                            rectangleF13.Height = sizeF1.Height;
                            g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF13);
                        }
                        else
                        {
                            rectangleF13 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelDiameter.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(radius, decimalPlaces) + "px", textfont);
                            rectangleF14.Width = sizeF1.Width;
                            rectangleF14.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(radius, decimalPlaces) + "px", textfont, textbrush, rectangleF14);
                        }
                        else
                        {
                            rectangleF14 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDiameter.ToString()))
                        {
                            string s = Math.Round(radius * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF15.Width = sizeF1.Width;
                            rectangleF15.Height = sizeF1.Height;
                            g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF15);
                        }
                        else
                        {
                            rectangleF15 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelDistance.ToString()))
                        {
                            sizeF1 = g.MeasureString(frontStr + "" + Math.Round(this.length, decimalPlaces) + "px", textfont);
                            rectangleF16.Width = sizeF1.Width;
                            rectangleF16.Height = sizeF1.Height;
                            g.DrawString(frontStr + "" + Math.Round(this.length, decimalPlaces) + "px", textfont, textbrush, rectangleF16);
                        }
                        else
                        {
                            rectangleF16 = new RectangleF();
                        }
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalDistance.ToString()))
                        {
                            string s = Math.Round(this.length * unitLength, decimalPlaces).ToString();
                            if (s.IndexOf(".") == -1)
                            {
                                for (int i = 0; i < decimalPlaces; i++)
                                {
                                    if (i == 0)
                                        s += ".";
                                    s += "0";
                                }
                            }
                            else
                            {
                                int dic = s.Length - s.IndexOf(".") - 1;
                                if (dic < decimalPlaces)
                                {
                                    for (int i = 0; i < decimalPlaces - dic; i++)
                                    {
                                        s += "0";
                                    }
                                }
                            }
                            sizeF1 = g.MeasureString(frontStr + s + this.unit, textfont);
                            rectangleF17.Width = sizeF1.Width;
                            rectangleF17.Height = sizeF1.Height;
                            g.DrawString(frontStr + s + this.unit, textfont, textbrush, rectangleF17);
                        }
                        else
                        {
                            rectangleF17 = new RectangleF();
                        }
                    }
                }
            }
            pen.Dispose();
            linePen.Dispose();
            if (this.configurationFile)
                this.pointChange = false;
            this.mouseUpAttribute = false;
            pointChangeObject.Remove(this.drawToolType);
        }
        /// <summary>
        /// 停止绘制时
        /// </summary>
        /// <param name="up"></param>
        public override void MouseUp(bool up)
        {
            mouseUpPointChange = up;
        }
        public void AddPoint(Point point)
        {
            pointArray.Add(point);
        }

        public override int HandleCount
        {
            get
            {
                return pointArray.Count + 1;
            }
        }

        /// <summary>
        /// Get handle pointscroll by 1-based number
        /// </summary>
        /// <param name="handleNumber"></param>
        /// <returns></returns>
        public override PointF GetHandle(int handleNumber)
        {
            float x = 0;
            float y = 0;

            switch (handleNumber)
            {
                case 1:
                    x = pointArray[0].X;
                    y = pointArray[0].Y;
                    break;
                case 2:
                    x = pointArray[1].X;
                    y = pointArray[1].Y;
                    break;
                case 3:
                    x = pointArray[2].X;
                    y = pointArray[2].Y;
                    break;
                case 4:
                    x = pointArray[3].X;
                    y = pointArray[3].Y;
                    break;
                case 5:
                    x = distantPoint.X;
                    y = distantPoint.Y;
                    break;
                case 6:
                    x = Convert.ToInt32(x0);
                    y = Convert.ToInt32(y0);
                    break;
                case 7:
                    x = this.pointL.X;
                    y = this.pointL.Y;
                    break;
            }

            return new PointF(x, y);
        }

        /// <summary>
        /// Hit test.
        /// Return value: -1 - no hit
        ///                0 - hit anywhere
        ///                > 1 - handle number
        /// </summary>
        /// <param name="pointscroll"></param>
        /// <returns></returns>
        public override int HitTest(Point point)
        {
            if (Selected)
            {
                for (int i = 1; i <= 6; i++)
                {
                    if (GetHandleRectangle(i).Contains(point))
                        return i;
                }
                if (this.rectangleF1.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 1;
                    return 7;
                }
                else if (this.rectangleF2.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 2;
                    return 7;
                }
                else if (this.rectangleF3.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 3;
                    return 7;
                }
                else if (this.rectangleF4.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 4;
                    return 7;
                }
                else if (this.rectangleF5.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 5;
                    return 7;
                }
                else if (this.rectangleF6.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 6;
                    return 7;
                }
                else if (this.rectangleF7.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 7;
                    return 7;
                }
                else if (this.rectangleF8.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 8;
                    return 7;
                }
                else if (this.rectangleF9.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 9;
                    return 7;
                }
                else if (this.rectangleF10.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 10;
                    return 7;
                }
                else if (this.rectangleF11.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 11;
                    return 7;
                }
                else if (this.rectangleF12.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 12;
                    return 7;
                }
                else if (this.rectangleF13.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 13;
                    return 7;
                }
                else if (this.rectangleF14.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 14;
                    return 7;
                }
                else if (this.rectangleF15.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 15;
                    return 7;
                }
                else if (this.rectangleF16.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 16;
                    return 7;
                }
                else if (this.rectangleF17.Contains(point))
                {
                    this.pointL = point;
                    moveKb = 17;
                    return 7;
                }
            }

            if (PointInObject(point))
                return 0;

            return -1;
        }

        protected override bool PointInObject(Point point)
        {
            CreateObjects();

            return rectangle.Contains(point);
        }

        public override bool IntersectsWith(Rectangle rectangle)
        {
            CreateObjects();

            return AreaRegion.IsVisible(rectangle);
        }
        protected virtual void CreateObjects()
        {
            if (AreaPath != null)
                return;

            AreaPath = new GraphicsPath();
            AreaPath.AddRectangle(GetBoundingBox());
            AreaPath.CloseFigure();
            AreaRegion = new Region(AreaPath);
        }
        protected GraphicsPath AreaPath
        {
            get
            {
                return areaPath;
            }
            set
            {
                areaPath = value;
            }
        }
        protected Region AreaRegion
        {
            get
            {
                return areaRegion;
            }
            set
            {
                areaRegion = value;
            }
        }
        protected Pen AreaPen
        {
            get
            {
                return areaPen;
            }
            set
            {
                areaPen = value;
            }
        }
        public override Cursor GetHandleCursor(int handleNumber)
        {
            return handleCursor;
        }
        public override void MoveHandleTo(Point point, int handleNumber)
        {
            //aaa = false;
            //System.Drawing.Region region = new Region(path);
            //if (region.IsVisible(distantPoint))
            //{
            //    aaa = true;
            //}
            if (handleNumber < 5)
            {
                this.mouseUpPointChange = true;
                if (handleNumber == 1)
                {
                    this.rectangleF1.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF2.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF3.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF4.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF5.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF6.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF7.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF8.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF9.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF10.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF11.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF12.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF13.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF14.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF15.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF16.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF17.Offset(point.X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                }
                //else if (handleNumber == 4)
                //{
                //    if (aaa)
                //        pointArray[handleNumber - 1] = point;
                //    else
                //    {
                //        //pointArray[handleNumber - 1] = pointF;

                //    }
                //}
                //else
                    pointArray[handleNumber - 1] = point;
            }
            else if (handleNumber == 7)
            {
                if (this.moveKb == 1)
                    this.rectangleF1.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 2)
                    this.rectangleF2.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 3)
                    this.rectangleF3.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 4)
                    this.rectangleF4.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 5)
                    this.rectangleF5.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 6)
                    this.rectangleF6.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 7)
                    this.rectangleF7.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 8)
                    this.rectangleF8.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 9)
                    this.rectangleF9.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 10)
                    this.rectangleF10.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 11)
                    this.rectangleF11.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 12)
                    this.rectangleF12.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 13)
                    this.rectangleF13.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 14)
                    this.rectangleF14.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 15)
                    this.rectangleF15.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 16)
                    this.rectangleF16.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                else if (this.moveKb == 17)
                    this.rectangleF17.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                this.pointL = point;
            }
        }

        public override void Move(int deltaX, int deltaY)
        {
            for (int i = 0; i < pointArray.Count; i++)
            {
                pointArray[i] = new PointF(pointArray[i].X + ISurfaceBox.UnscaleScalar(deltaX), pointArray[i].Y + ISurfaceBox.UnscaleScalar(deltaY));
            }
            this.startPoint = pointArray[0];
            int x = ISurfaceBox.UnscaleScalar(deltaX);
            int y = ISurfaceBox.UnscaleScalar(deltaY);
            pointL.X += x;
            pointL.Y += y;
            this.rectangleF1.Offset(x, y);
            this.rectangleF2.Offset(x, y);
            this.rectangleF3.Offset(x, y);
            this.rectangleF4.Offset(x, y);
            this.rectangleF5.Offset(x, y);
            this.rectangleF6.Offset(x, y);
            this.rectangleF7.Offset(x, y);
            this.rectangleF8.Offset(x, y);
            this.rectangleF9.Offset(x, y);
            this.rectangleF10.Offset(x, y);
            this.rectangleF11.Offset(x, y);
            this.rectangleF12.Offset(x, y);
            this.rectangleF13.Offset(x, y);
            this.rectangleF14.Offset(x, y);
            this.rectangleF15.Offset(x, y);
            this.rectangleF16.Offset(x, y);
            this.rectangleF17.Offset(x, y);
            Invalidate();
        }
        /// <summary>
        /// Invalidate object.
        /// When object is invalidated, path used for hit test
        /// is released and should be created again.
        /// </summary>
        protected void Invalidate()
        {
            if (AreaPath != null)
            {
                AreaPath.Dispose();
                AreaPath = null;
            }

            if (AreaPen != null)
            {
                AreaPen.Dispose();
                AreaPen = null;
            }

            if (AreaRegion != null)
            {
                AreaRegion.Dispose();
                AreaRegion = null;
            }
        }
        /// <summary>
        /// Normalize rectangle
        /// </summary>
        public override void Normalize()
        {
            rectangle = Annotation.DrawObject.GetNormalizedRectangle(rectangle);
        }

        public override RectangleF GetBoundingBox()
        {
            Rectangle rectangle;
            int minx = 0, maxx = 0, miny = 0, maxy = 0;
            for (int i = 0; i < pointArray.Count; i++)
            {
                if (i == 0)
                {
                    minx = maxx = (int)pointArray[i].X;
                    miny = maxy = (int)pointArray[i].Y;
                }
                else
                {
                    if (pointArray[i].X > maxx) maxx = (int)pointArray[i].X;
                    if (pointArray[i].X < minx) minx = (int)pointArray[i].X;
                    if (pointArray[i].Y > maxy) maxy = (int)pointArray[i].Y;
                    if (pointArray[i].Y < miny) miny = (int)pointArray[i].Y;
                }
            }
            rectangle = new Rectangle(minx, miny, maxx - minx, maxy - miny);

            return rectangle;
        }

        internal void setNextPoint(Point p)
        {
            AddPoint(p);
        }

        public override void DrawTracker(Graphics g)
        {
            if (!Selected)
                return;

           if (pointArray.Count >= 4)
            {
                SolidBrush brush = new SolidBrush(Color.FromArgb(MarkpointAreaColor));
                Pen pen = new Pen(Color.FromArgb(MarkpointLineColor), MarkpointLineWidth);
                for (int i = 1; i <= 6; i++)
                {
                    if (i == 7)
                    {
                        brush = new SolidBrush(Color.Transparent);
                        pen = new Pen(Color.Transparent);
                    }
                    switch (MarkpointStyle)
                    {
                        case 0:
                            g.FillRectangle(brush, GetHandleRectangle(i));
                            g.DrawRectangle(pen, GetHandleRectangle(i));
                            break;
                        case 1:
                            g.FillEllipse(brush, GetHandleRectangle(i));
                            g.DrawEllipse(pen, GetHandleRectangle(i));
                            break;
                        case 2:
                            g.FillPolygon(brush, GetHandlePoint(i));
                            g.DrawPolygon(pen, GetHandlePoint(i));
                            break;
                    }
                }
                pen.Dispose();
                brush.Dispose();
                RectangleF r = GetBoundingBox();
                //g.DrawRectangle(new Pen(Color.White), r.X, r.Y, r.Width, r.Height);
            }
        }

        public override List<PointF> GetPoints()
        {
            return pointArray;
        }

        public override ParentStyleModel GetStyle()
        {
            return measurePointArcSize;
        }
    }
}