using PaintDotNet.Annotation.Enum;
using PaintDotNet.Base.SettingModel;

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Globalization;
using System.Windows.Forms;
using PaintDotNet.Base.CommTool;
using PaintDotNet.Annotation.Measure;
using System.Linq;

namespace PaintDotNet.Annotation.Measure
{
    using PointList = List<PointF>;

    /// <summary>
    /// 测量->平行线测量->平行多点平行线
    /// </summary>
    public class MeasureHMulParallelLine : MeasureDrawObject
    {
        public PointList pointArray;

        /// <summary>
        ///  Graphic objects for hit test
        /// </summary>
        private GraphicsPath areaPath = null;
        private Pen areaPen = null;
        private Region areaRegion = null;
        /// <summary>
        /// 总长度
        /// </summary>
        private double Length = 0.0;
        /// <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();
        /// <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>
        /// 多点绘制时的文本矩形集合
        /// </summary>
        public List<RectangleF> RectangleFList = new List<RectangleF>();
        /// <summary>
        /// 绘制属性
        /// </summary>
        private string[] drawingPropertiesList;
        /// <summary>
        /// 绘制属性(克隆)
        /// </summary>
        private string[] drawingPropertiesListClone;
        private bool drawing;
        /// <summary>
        /// 属性绘制点
        /// </summary>
        private PointF rotationPoint;
        private PointF rotationPoint1;
        /// <summary>
        /// 字体角度
        /// </summary>
        private double angleRotationP = 0;
        private double angleRotationL = 0;
        private int num = 0;
        /// <summary>
        /// 限制绘制(绘制中)
        /// </summary>
        public bool mouseUpPointChange = false;
        /// <summary>
        /// 测量样式信息model
        /// </summary>
        private MeasureStyleModel.MeasureHMulParallelLine measureStyleModel;

        public MeasureStyleModel.MeasureHMulParallelLine MeasureStyleModel
        {
            set
            {
                this.measureStyleModel = value;
            }
        }

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

            measureStyleModel = surfaceBox.GetMeasureStyleModel().measureHMulParallelLine;
            pointArray = new PointList();
            startPoint.X = x1;
            startPoint.Y = y1;
            if (clone)
            {
                drawing = true;
                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();
        }
        /// <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.ParallelLines.Text");
            else
                data.Add(MeasureAttributes.MeasureMethod, PdnResources.GetString("Menu.MeasureAction.ParallelLines.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.PixelStartX))
                data[MeasureAttributes.PixelStartX] = startPoint.X;
            else
                data.Add(MeasureAttributes.PixelStartX, startPoint.X);

            if (data.ContainsKey(MeasureAttributes.PixelStartY))
                data[MeasureAttributes.PixelStartY] = startPoint.Y;
            else
                data.Add(MeasureAttributes.PixelStartY, startPoint.Y);

            if (data.ContainsKey(MeasureAttributes.PhysicalStartX))
                data[MeasureAttributes.PhysicalStartX] = Math.Round(startPoint.X * unitLength, decimalPlaces);
            else
                data.Add(MeasureAttributes.PhysicalStartX, Math.Round(startPoint.X * unitLength, decimalPlaces));

            if (data.ContainsKey(MeasureAttributes.PhysicalStartY))
                data[MeasureAttributes.PhysicalStartY] = Math.Round(startPoint.Y * unitLength, decimalPlaces);
            else
                data.Add(MeasureAttributes.PhysicalStartY, Math.Round(startPoint.Y * unitLength, decimalPlaces));

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

            string s = Math.Round(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";
                    }
                }
            }
            if (data.ContainsKey(MeasureAttributes.PhysicalLength))
                data[MeasureAttributes.PhysicalLength] = s;
            else
                data.Add(MeasureAttributes.PhysicalLength, s);

            if (data.ContainsKey(MeasureAttributes.PixelAverageDistance))
                data[MeasureAttributes.PixelAverageDistance] = Math.Round(Length / (pointArray.Count - 2), decimalPlaces);
            else
                data.Add(MeasureAttributes.PixelAverageDistance, Math.Round(Length / (pointArray.Count - 2), decimalPlaces));

            s = Math.Round(Length / (pointArray.Count - 2) * 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.PhysicalAverageDistance))
                data[MeasureAttributes.PhysicalAverageDistance] = s;
            else
                data.Add(MeasureAttributes.PhysicalAverageDistance, s);

            return data;
        }
        public MeasureHMulParallelLine(ISurfaceBox surfaceBox, List<PointF> points, ParentStyleModel parentStyleModel, Object content) : base()
        {
            this.objectType = DrawClass.Measure;
            this.drawToolType = DrawToolType.MeasureHMulParallelLine;
            this.ISurfaceBox = surfaceBox;
            measureStyleModel = (MeasureStyleModel.MeasureHMulParallelLine)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];
            
            for (int i = 0; i < (points.Count - 2) * 6; i++)
            {
                this.RectangleFList.Add(new RectangleF());
            }
            this.configurationFile = true;
        }

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

        public override DrawObject Clone(ISurfaceBox surfaceBox)
        {
            MeasureHMulParallelLine drawPolygon = new MeasureHMulParallelLine(surfaceBox, this.GetPoints(), this.measureStyleModel, null);
            if (drawingPropertiesList != null)
                drawPolygon.drawingPropertiesListClone = drawingPropertiesList;
            drawPolygon.RectangleFList = DrawRulerHelper.DeepCopyListByReflect(RectangleFList);
            FillDrawObjectFields(drawPolygon);
            return drawPolygon;
        }
        private List<PointF> pointFs = new PointList();
        private List<PointF> pointFs1 = new PointList();
        public override void Draw(Graphics g)
        {
            lengthParagraphs = new List<string>();
            pointFs.Clear();
            pointFs1.Clear();
            drawingProperties.TryGetValue(this.drawToolType, out drawingPropertiesList);
            if (drawingPropertiesList == null)
            {
                drawingPropertiesList = drawingPropertiesListClone;
                if (!this.drawing)
                    this.configurationFile = true;
            }
            pointChangeObject.TryGetValue(this.drawToolType, out SavePointChange);
            Font textfont1 = new Font(measureStyleModel.font, measureStyleModel.fontSize);
            Brush textbrush1 = new SolidBrush(Color.FromArgb(measureStyleModel.textColor));
            // 总长度
            double allLength = 0.0;
            SizeF sizeF = new SizeF();
            measureStyleModel = this.ISurfaceBox.GetMeasureStyleModel().measureHMulParallelLine;

            int a1 = 0;
            int a2 = 1;
            int a3 = 2;
            int a4 = 3;
            int a5 = 4;
            int a6 = 5;
            RectangleF rectangleF;

            string frontStr = string.Empty;

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

            if (this.measureStyleModel.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.measureStyleModel.showAlias)
            {

                frontStr = this.measureStyleModel.aliasName + frontStr;
            }

            // 连续绘制
            for (int a = 1; a <= HandleCount - 2; a++)
            {
                if (HandleCount - 1 >= 2)
                {
                    Font textfont = new Font(measureStyleModel.font, measureStyleModel.fontSize);
                    Brush textbrush = new SolidBrush(Color.FromArgb(measureStyleModel.textColor));
                    g.SmoothingMode = SmoothingMode.AntiAlias;
                    Color color = Color.FromArgb(this.measureStyleModel.lineColor);
                    Pen pen = new Pen(color, this.measureStyleModel.lineWidth);
                    pen.DashStyle = (DashStyle)this.measureStyleModel.lineStyle;


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

                    if (!this.Selected)
                    {
                        this.pointChange = true;
                        rectangleF1 = new RectangleF();
                        rectangleF2 = new RectangleF();
                        rectangleF3 = new RectangleF();
                        rectangleF4 = new RectangleF();
                        rectangleF5 = new RectangleF();
                    }

                    if (HandleCount - 1 == 2)
                    {
                        g.DrawLine(pen, pointArray[0], pointArray[1]);
                    }
                    if (HandleCount - 1 >= 3)
                    {
                        // 垂足坐标
                        PointF footPoint = new PointF();
                        footPoint.X = pointArray[0].X;
                        footPoint.Y = pointArray[a].Y;
                        //判断第三个点相对于第一个点的象限
                        int x3 = (int)(pointArray[a].X - pointArray[0].X);
                        if (x3 == 0)
                            x3 = 1;
                        int y3 = (int)(pointArray[a].Y - pointArray[0].Y);
                        if (y3 == 0)
                            y3 = 1;
                        int i3 = 0;
                        if (x3 > 0 && y3 > 0)             //第4象限
                        {
                            i3 = 4;
                        }
                        else if (x3 > 0 && y3 < 0)      //第1象限
                        {
                            i3 = 1;
                        }
                        else if (x3 < 0 && y3 < 0)       //第2象限
                        {
                            i3 = 2;
                        }
                        else if (x3 < 0 && y3 > 0)          //第3象限
                        {
                            i3 = 3;
                        }
                        double angle = 0.0;
                        if (i3 == 1 || i3 == 4)
                        {
                            angle = 0;
                        }
                        else
                        {
                            angle = 180;
                        }
                        // 点到直线距离
                        double length = BasicCalculationHelper.GetDistance(new PointF(pointArray[0].X, pointArray[a].Y), pointArray[a], 10);
                        PointF point = BasicCalculationHelper.GetAnglePoint(new PointF(pointArray[0].X + (int)length,
                            pointArray[0].Y), pointArray[0], angle);
                        PointF point1 = BasicCalculationHelper.GetAnglePoint(new PointF(pointArray[1].X + (int)length,
                            pointArray[1].Y), pointArray[1], angle);
                        pointFs.Add(point);
                        pointFs1.Add(point1);
                        g.DrawLine(pen, new PointF(pointArray[0].X, pointArray[a].Y), pointArray[a]);
                        g.DrawLine(pen, point, point1);
                        // 总长度
                        allLength = allLength + length;
                        if (a > 1)
                        {
                            int offsetValuePoint = measureStyleModel.fontSize + measureStyleModel.fontSize / 2;
                            int offsetValue1Point = measureStyleModel.lineWidth * 2 / 3;
                            int offsetPoint = offsetValue1Point;
                            if (drawingPropertiesList != null)
                            {
                                // 像素长度
                                if (drawingPropertiesList.Contains(MeasureAttributes.PixelLength.ToString()))
                                {
                                    offsetPoint += offsetValuePoint;
                                }
                                // 物理长度
                                if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalLength.ToString()))
                                {
                                    offsetPoint += offsetValuePoint;
                                }
                                // 像素起始点X
                                if (drawingPropertiesList.Contains(MeasureAttributes.PixelStartX.ToString()))
                                {
                                    offsetPoint += offsetValuePoint;
                                }
                                // 像素起始点Y
                                if (drawingPropertiesList.Contains(MeasureAttributes.PixelStartY.ToString()))
                                {
                                    offsetPoint += offsetValuePoint;
                                }
                                // 物理起始点X
                                if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalStartX.ToString()))
                                {
                                    offsetPoint += offsetValuePoint;
                                }
                                // 物理起始点Y
                                if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalStartY.ToString()))
                                {
                                    offsetPoint += offsetValuePoint;
                                }
                            }
                            if (measureStyleModel.linePositionP == 0)
                                this.rotationPoint1 = new PointF(footPoint.X, footPoint.Y - offsetPoint );
                            else if (measureStyleModel.linePositionP == 1)
                                this.rotationPoint1 = new PointF((footPoint.X + pointArray[a].X) / 2, footPoint.Y - offsetPoint );
                            else if (measureStyleModel.linePositionP == 2)
                                this.rotationPoint1 = new PointF(pointArray[a].X, pointArray[a].Y - offsetPoint );
                            else if (measureStyleModel.linePositionP == 3)
                                this.rotationPoint1 = new PointF( footPoint.X, footPoint.Y + offsetValue1Point);
                            else if (measureStyleModel.linePositionP == 4)
                                this.rotationPoint1 = new PointF((footPoint.X + pointArray[a].X) / 2, (footPoint.Y + pointArray[a].Y) / 2 + offsetValue1Point);
                            else if (measureStyleModel.linePositionP == 5)
                                this.rotationPoint1 = new PointF(pointArray[a].X, pointArray[a].Y + offsetValue1Point);
                            int offsetValue = measureStyleModel.fontSize + measureStyleModel.fontSize / 2;
                            int offsetValue1 = measureStyleModel.lineWidth * 2 / 3;
                            int offset = 0;
                            if (drawingPropertiesList != null)
                            {
                                // 像素长度
                                if (drawingPropertiesList.Contains(MeasureAttributes.PixelLength.ToString()))
                                {
                                    rectangleF = this.RectangleFList[a1];
                                    sizeF = g.MeasureString("" + Math.Round(length, decimalPlaces) + "px", textfont1);
                                    rectangleF.Width = sizeF.Width;
                                    rectangleF.Height = sizeF.Height;
                                    if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                                    {
                                        rectangleF.Location = new Point((int)this.rotationPoint1.X - (int)sizeF.Width / 2, (int)this.rotationPoint1.Y - offset);
                                        offset += offsetValue;
                                        this.RectangleFList[a1] = rectangleF;
                                    }
                                    g.DrawString("" + Math.Round(length, decimalPlaces) + "px", textfont1, textbrush1, this.RectangleFList[a1]);
                                    a1 += 6;
                                }
                                else
                                {
                                    this.RectangleFList[a1] = new RectangleF();
                                    a1 += 6;
                                }
                                string s = Math.Round(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";
                                        }
                                    }
                                }
                                lengthParagraphs.Add(s);
                                // 物理长度
                                if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalLength.ToString()))
                                {
                                    rectangleF = this.RectangleFList[a2];

                                    if (a == 2)
                                    {
                                        sizeF = g.MeasureString(frontStr + "" + s + this.unit, textfont1);
                                    }
                                    else
                                    {
                                        sizeF = g.MeasureString("" + s + this.unit, textfont1);
                                    }

                                    sizeF = g.MeasureString(s + this.unit, textfont1);
                                    rectangleF.Width = sizeF.Width;
                                    rectangleF.Height = sizeF.Height;
                                    if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                                    {
                                        rectangleF.Location = new Point((int)this.rotationPoint1.X - (int)sizeF.Width / 2, (int)this.rotationPoint1.Y - offset);
                                        offset += offsetValue;
                                        this.RectangleFList[a2] = rectangleF;
                                    }
                                    if (a == 2)
                                    {
                                        g.DrawString(frontStr + "" + s + this.unit, textfont1, textbrush1, this.RectangleFList[a2]);
                                    }
                                    else
                                    {
                                        g.DrawString("" + s + this.unit, textfont1, textbrush1, this.RectangleFList[a2]);
                                    }
                                    a2 += 6;
                                }
                                else
                                {
                                    this.RectangleFList[a2] = new RectangleF();
                                    a2 += 6;
                                }
                                // 像素起始点X
                                if (drawingPropertiesList.Contains(MeasureAttributes.PixelStartX.ToString()))
                                {
                                    rectangleF = this.RectangleFList[a3];
                                    sizeF = g.MeasureString("" + pointArray[a].X, textfont1);
                                    rectangleF.Width = sizeF.Width;
                                    rectangleF.Height = sizeF.Height;
                                    if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                                    {
                                        rectangleF.Location = new Point((int)this.rotationPoint1.X - (int)sizeF.Width / 2, (int)this.rotationPoint1.Y - offset);
                                        offset += offsetValue;
                                        this.RectangleFList[a3] = rectangleF;
                                    }
                                    g.DrawString("" + pointArray[a].X, textfont1, textbrush1, this.RectangleFList[a3]);
                                    a3 += 6;
                                }
                                else
                                {
                                    this.RectangleFList[a3] = new RectangleF();
                                    a3 += 6;
                                }
                                // 像素起始点Y
                                if (drawingPropertiesList.Contains(MeasureAttributes.PixelStartY.ToString()))
                                {
                                    rectangleF = this.RectangleFList[a4];
                                    sizeF = g.MeasureString("" + pointArray[a].Y, textfont1);
                                    rectangleF.Width = sizeF.Width;
                                    rectangleF.Height = sizeF.Height;
                                    if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                                    {
                                        rectangleF.Location = new Point((int)this.rotationPoint1.X - (int)sizeF.Width / 2, (int)this.rotationPoint1.Y - offset);
                                        offset += offsetValue;
                                        this.RectangleFList[a4] = rectangleF;
                                    }
                                    g.DrawString("" + pointArray[a].Y, textfont1, textbrush1, this.RectangleFList[a4]);
                                    a4 += 6;
                                }
                                else
                                {
                                    this.RectangleFList[a4] = new RectangleF();
                                    a4 += 6;
                                }
                                // 物理起始点X
                                if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalStartX.ToString()))
                                {
                                    rectangleF = this.RectangleFList[a5];
                                    sizeF = g.MeasureString("" + Math.Round(pointArray[a].X * unitLength, decimalPlaces), textfont1);
                                    rectangleF.Width = sizeF.Width;
                                    rectangleF.Height = sizeF.Height;
                                    if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                                    {
                                        rectangleF.Location = new Point((int)this.rotationPoint1.X - (int)sizeF.Width / 2, (int)this.rotationPoint1.Y - offset);
                                        offset += offsetValue;
                                        this.RectangleFList[a5] = rectangleF;
                                    }
                                    g.DrawString("" + Math.Round(pointArray[a].X * unitLength, decimalPlaces), textfont1, textbrush1, this.RectangleFList[a5]);
                                    a5 += 6;
                                }
                                else
                                {
                                    this.RectangleFList[a5] = new RectangleF();
                                    a5 += 6;
                                }
                                // 物理起始点Y
                                if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalStartY.ToString()))
                                {
                                    rectangleF = this.RectangleFList[a6];
                                    sizeF = g.MeasureString("" + Math.Round(pointArray[a].Y * unitLength, decimalPlaces), textfont1);
                                    rectangleF.Width = sizeF.Width;
                                    rectangleF.Height = sizeF.Height;
                                    if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                                    {
                                        rectangleF.Location = new Point((int)this.rotationPoint1.X - (int)sizeF.Width / 2, (int)this.rotationPoint1.Y - offset);
                                        offset += offsetValue;
                                        this.RectangleFList[a6] = rectangleF;
                                    }
                                    g.DrawString("" + Math.Round(pointArray[a].Y * unitLength, decimalPlaces), textfont1, textbrush1, this.RectangleFList[a6]);
                                    a6 += 6;
                                }
                                else
                                {
                                    this.RectangleFList[a6] = new RectangleF();
                                    a6 += 6;
                                }
                            }
                        }
                        pen.Dispose();
                    }
                }
            }
            if(pointArray.Count > 1)
            {
                Matrix mtxSave1 = g.Transform;
                Matrix matrix1 = g.Transform;
                int count = 0;
                if (pointArray.Count == 2)
                    count = 1;
                else
                    count = pointArray.Count - 2;
                // 是否绘制
                if (this.pointChange || this.SavePointChange || this.mouseUpPointChange || this.mouseUpAttribute)
                {
                    if (measureStyleModel.linePositionL == 0)
                    {
                        this.rotationPoint = pointArray[1];
                        angleRotationL = -90;
                    }
                    else if (measureStyleModel.linePositionL == 1)
                    {
                        this.rotationPoint = new PointF((pointArray[1].X + pointArray[0].X) / 2, (pointArray[0].Y + pointArray[1].Y) / 2);
                        angleRotationL = -90;
                    }
                    else if (measureStyleModel.linePositionL == 2)
                    {
                        this.rotationPoint = pointArray[0];
                        angleRotationL = -90;
                    }
                    else if (measureStyleModel.linePositionL == 3)
                    {
                        this.rotationPoint = pointArray[1];
                        angleRotationL = 90;
                    }
                    else if (measureStyleModel.linePositionL == 4)
                    {
                        this.rotationPoint = new PointF((pointArray[1].X + pointArray[0].X) / 2, (pointArray[0].Y + pointArray[1].Y) / 2);
                        angleRotationL = 90;
                    }
                    else if (measureStyleModel.linePositionL == 5)
                    {
                        this.rotationPoint = pointArray[0];
                        angleRotationL = 90;
                    }
                    // 文本间隔定义
                    int offsetValue = measureStyleModel.fontSize + measureStyleModel.fontSize / 2;
                    int offsetValue1 = measureStyleModel.lineWidth * 2 / 3;
                    int offset = offsetValue + offsetValue1;
                    this.pointL = new Point((int)this.rotationPoint.X, (int)this.rotationPoint.Y);
                    if (drawingPropertiesList != null)
                    {
                        // 像素平均距离
                        if (drawingPropertiesList.Contains(MeasureAttributes.PixelAverageDistance.ToString()))
                        {
                            sizeF = g.MeasureString(frontStr + Math.Round(Length / count, decimalPlaces) + "px", textfont1);
                            rectangleF4.Location = new Point((int)this.rotationPoint.X - (int)sizeF.Width / 2, (int)this.rotationPoint.Y - offset);
                            offset += offsetValue;
                        }
                        // 物理平均距离
                        if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalAverageDistance.ToString()))
                        {
                            string s = Math.Round(Length / count * 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";
                                    }
                                }
                            }
                            sizeF = g.MeasureString(frontStr + s + this.unit, textfont1);
                            rectangleF5.Location = new Point((int)this.rotationPoint.X - (int)sizeF.Width / 2, (int)this.rotationPoint.Y - offset);
                            offset += offsetValue;
                        }
                        // 测量方式
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureMethod.ToString()))
                        {
                            sizeF = g.MeasureString(frontStr + PdnResources.GetString("Menu.MeasureAction.ParallelLines.Text"), textfont1);
                            rectangleF1.Location = new Point((int)this.rotationPoint.X - (int)sizeF.Width / 2, (int)this.rotationPoint.Y - offset);
                            offset += offsetValue;
                        }
                        // 测量单位(中文)
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitCN.ToString()))
                        {
                            sizeF = g.MeasureString(frontStr + this.unitString, textfont1);
                            rectangleF2.Location = new Point((int)this.rotationPoint.X - (int)sizeF.Width / 2, (int)this.rotationPoint.Y - offset);
                            offset += offsetValue;
                        }
                        // 测量单位(英文)
                        if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitEN.ToString()))
                        {
                            sizeF = g.MeasureString(frontStr + this.unit, textfont1);
                            rectangleF3.Location = new Point((int)this.rotationPoint.X - (int)sizeF.Width / 2, (int)this.rotationPoint.Y - offset);
                        }
                    }
                }
                matrix1.RotateAt((float)angleRotationL, rotationPoint);
                g.Transform = matrix1;
                if (drawingPropertiesList != null)
                {
                    // 测量方式
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureMethod.ToString()))
                    {
                        sizeF = g.MeasureString(frontStr + PdnResources.GetString("Menu.MeasureAction.ParallelLines.Text"), textfont1);
                        rectangleF1.Width = sizeF.Width;
                        rectangleF1.Height = sizeF.Height;
                        g.DrawString(frontStr + PdnResources.GetString("Menu.MeasureAction.ParallelLines.Text"), textfont1, textbrush1, rectangleF1);
                    }
                    else
                    {
                        rectangleF1 = new RectangleF();
                    }
                    // 测量单位(中文)
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitCN.ToString()))
                    {
                        sizeF = g.MeasureString(frontStr + this.unitString, textfont1);
                        rectangleF2.Width = sizeF.Width;
                        rectangleF2.Height = sizeF.Height;
                        g.DrawString(frontStr + this.unitString, textfont1, textbrush1, rectangleF2);
                    }
                    else
                    {
                        rectangleF2 = new RectangleF();
                    }
                    // 测量单位(英文)
                    if (drawingPropertiesList.Contains(MeasureAttributes.MeasureUnitEN.ToString()))
                    {
                        sizeF = g.MeasureString(frontStr + this.unit, textfont1);
                        rectangleF3.Width = sizeF.Width;
                        rectangleF3.Height = sizeF.Height;
                        g.DrawString(frontStr + this.unit, textfont1, textbrush1, rectangleF3);
                    }
                    else
                    {
                        rectangleF3 = new RectangleF();
                    }
                    // 像素平均距离
                    if (drawingPropertiesList.Contains(MeasureAttributes.PixelAverageDistance.ToString()))
                    {
                        sizeF = g.MeasureString(frontStr + Math.Round(Length / count, decimalPlaces) + "px", textfont1);
                        rectangleF4.Width = sizeF.Width;
                        rectangleF4.Height = sizeF.Height;
                        g.DrawString(frontStr + Math.Round(Length / count, decimalPlaces) + "px", textfont1, textbrush1, rectangleF4);
                    }
                    else
                    {
                        rectangleF4 = new RectangleF();
                    }
                    // 物理平均距离
                    if (drawingPropertiesList.Contains(MeasureAttributes.PhysicalAverageDistance.ToString()))
                    {
                        string s = Math.Round(Length / count * 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";
                                }
                            }
                        }


                        sizeF = g.MeasureString(frontStr + s + this.unit, textfont1);
                        rectangleF5.Width = sizeF.Width;
                        rectangleF5.Height = sizeF.Height;
                        g.DrawString(frontStr + s + this.unit, textfont1, textbrush1, rectangleF5);
                    }
                    else
                    {
                        rectangleF5 = new RectangleF();
                    }
                }
                g.Transform = mtxSave1;
                matrix1.Dispose();
                // 长度文本显示
                //g.DrawString(Math.Round(allLength * unitLength, decimalPlaces) + unit, textfont1, textbrush1, pointArray[0]);
                this.Length = allLength;
                if (this.configurationFile)
                    this.pointChange = false;
                this.mouseUpAttribute = false;
                pointChangeObject.Remove(this.drawToolType);
            }
        }
        /// 停止绘制时
        /// </summary>
        /// <param name="up"></param>
        public override void MouseUp(bool up)
        {
            mouseUpPointChange = up;
        }
        public void AddPoint(PointF 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)
        {
            if (handleNumber < 1)
                handleNumber = 1;

            if (handleNumber > pointArray.Count && handleNumber != pointArray.Count + 1)
                handleNumber = pointArray.Count;
            if (handleNumber == pointArray.Count + 1)
                return this.pointL;
            else
                return pointArray[handleNumber - 1];
        }

        public override Cursor GetHandleCursor(int handleNumber)
        {
            return handleCursor;
        }

        public override void MoveHandleTo(Point point, int handleNumber)
        {
            if (handleNumber < 1)
                handleNumber = 1;

            if (handleNumber > pointArray.Count && handleNumber != pointArray.Count + 1)
                handleNumber = pointArray.Count;
            if (handleNumber == pointArray.Count + 1)
            {
                if(this.moveKb == 1 || this.moveKb == 2 || this.moveKb == 3 || this.moveKb == 4 || this.moveKb == 5)
                {
                    point = SetOffsetAfterRotation(point, this.rotationPoint, angleRotationL);
                    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
                {
                    for (int i = 0; i < this.RectangleFList.Count; i++)
                    {
                        num = i / 6;
                        if (num + 1 < pointArray.Count)
                        {
                            if (measureStyleModel.linePositionP == 0)
                            {
                                this.rotationPoint1 = pointArray[num + 1];
                            }
                            else if (measureStyleModel.linePositionP == 1)
                            {
                                this.rotationPoint1 = new PointF((pointArray[num + 1].X + pointFs[num].X) / 2, (pointFs[num].Y + pointArray[num + 1].Y) / 2);
                            }
                            else if (measureStyleModel.linePositionP == 2)
                            {
                                this.rotationPoint1 = pointFs[num];
                            }
                            else if (measureStyleModel.linePositionP == 3)
                            {
                                this.rotationPoint1 = pointArray[num + 1];
                            }
                            else if (measureStyleModel.linePositionP == 4)
                            {
                                this.rotationPoint1 = new PointF((pointArray[num + 1].X + pointFs[num].X) / 2, (pointFs[num].Y + pointArray[num + 1].Y) / 2);
                            }
                            else if (measureStyleModel.linePositionP == 5)
                            {
                                this.rotationPoint1 = pointArray[num];
                            }
                            RectangleF rectangleF = this.RectangleFList[i];
                            if (this.moveKb == -i)
                            {
                                point = SetOffsetAfterRotation(point, this.rotationPoint1, angleRotationP);
                                rectangleF.Offset(point.X - this.pointL.X, point.Y - this.pointL.Y);
                                this.RectangleFList[i] = rectangleF;
                                break;
                            }
                        }
                    }
                }
                this.pointL = point;
            }
            else
            {
                this.mouseUpPointChange = true;
                if (handleNumber == 1)
                {
                    this.rectangleF1.Offset(pointArray[0].X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF2.Offset(pointArray[0].X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF3.Offset(pointArray[0].X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF4.Offset(pointArray[0].X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    this.rectangleF5.Offset(pointArray[0].X - this.pointArray[0].X, point.Y - this.pointArray[0].Y);
                    pointArray[0] = new PointF(pointArray[0].X, point.Y);
                }
                else if (handleNumber == 2)
                {
                    pointArray[1] = new PointF(pointArray[1].X, point.Y);
                }
                else
                {
                    for (int i = 1; i <= this.RectangleFList.Count; i++)
                    {
                        if (i == handleNumber && handleNumber != 2)
                        {
                            RectangleF rectangleF = this.RectangleFList[i * 6 - 18];
                            rectangleF.Offset(point.X - this.pointArray[i - 1].X, point.Y - this.pointArray[i - 1].Y);
                            this.RectangleFList[i * 6 - 18] = rectangleF;
                            rectangleF = this.RectangleFList[i * 6 - 17];
                            rectangleF.Offset(point.X - this.pointArray[i - 1].X, point.Y - this.pointArray[i - 1].Y);
                            this.RectangleFList[i * 6 - 17] = rectangleF;
                            rectangleF = this.RectangleFList[i * 6 - 16];
                            rectangleF.Offset(point.X - this.pointArray[i - 1].X, point.Y - this.pointArray[i - 1].Y);
                            this.RectangleFList[i * 6 - 16] = rectangleF;
                            rectangleF = this.RectangleFList[i * 6 - 15];
                            rectangleF.Offset(point.X - this.pointArray[i - 1].X, point.Y - this.pointArray[i - 1].Y);
                            this.RectangleFList[i * 6 - 15] = rectangleF;
                            rectangleF = this.RectangleFList[i * 6 - 14];
                            rectangleF.Offset(point.X - this.pointArray[i - 1].X, point.Y - this.pointArray[i - 1].Y);
                            this.RectangleFList[i * 6 - 14] = rectangleF;
                            rectangleF = this.RectangleFList[i * 6 - 13];
                            rectangleF.Offset(point.X - this.pointArray[i - 1].X, point.Y - this.pointArray[i - 1].Y);
                            this.RectangleFList[i * 6 - 13] = rectangleF;
                        }
                    }
                    pointArray[handleNumber - 1] = point;
                }
            }
            Invalidate();
        }

        public override void Move(int deltaX, int deltaY)
        {
            int n = pointArray.Count;
            PointF point;

            for (int i = 0; i < n; i++)
            {
                point = new PointF(pointArray[i].X + ISurfaceBox.UnscaleScalar(deltaX), pointArray[i].Y + ISurfaceBox.UnscaleScalar(deltaY));
                pointArray[i] = point;
            }
            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);
            for (int i = 0; i < this.RectangleFList.Count; i++)
            {
                RectangleF rectangleF = this.RectangleFList[i];
                rectangleF.Offset(x, y);
                this.RectangleFList[i] = rectangleF;
            }
            Invalidate();
        }

        /// <summary>
        /// 用于创建一个路径或者是闭合的范围
        /// 用于响应点击选中
        /// 需要咨询用户是仅点击线还是矩形选择
        /// </summary>
        protected virtual void CreateObjects()
        {
            if (AreaPath != null)
                return;

            AreaPath = new GraphicsPath();
            AreaPath.AddRectangle(GetBoundingBox());
            AreaPath.CloseFigure();
            AreaRegion = new Region(AreaPath);
        }

        /// <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;
            }
        }
        protected GraphicsPath AreaPath
        {
            get
            {
                return areaPath;
            }
            set
            {
                areaPath = value;
            }
        }

        protected Pen AreaPen
        {
            get
            {
                return areaPen;
            }
            set
            {
                areaPen = value;
            }
        }

        protected Region AreaRegion
        {
            get
            {
                return areaRegion;
            }
            set
            {
                areaRegion = value;
            }
        }

        /// <summary>
        /// Draw tracker for selected object
        /// </summary>
        /// <param name="g"></param>
        public override void DrawTracker(Graphics g)
        {
            if (!Selected)
                return;
            SolidBrush brush = new SolidBrush(Color.FromArgb(MarkpointAreaColor));
            Pen pen = new Pen(Color.FromArgb(MarkpointLineColor), MarkpointLineWidth);
            for (int i = 1; i <= HandleCount; i++)
            {
                if (i == HandleCount)
                {
                    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;
                }
            }

            brush.Dispose();
            pen.Dispose();
        }

        /// <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 <= HandleCount; i++)
                {
                    if (GetHandleRectangle(i).Contains(point))
                        return i;
                }
                if (GetRectanglePosition(this.rectangleF1, point, this.rotationPoint, angleRotationL))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angleRotationL);
                    moveKb = 1;
                    return this.pointArray.Count + 1;
                }
                else if (GetRectanglePosition(this.rectangleF2, point, this.rotationPoint, angleRotationL))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angleRotationL);
                    moveKb = 2;
                    return this.pointArray.Count + 1;
                }
                else if (GetRectanglePosition(this.rectangleF3, point, this.rotationPoint, angleRotationL))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angleRotationL);
                    moveKb = 3;
                    return this.pointArray.Count + 1;
                }
                else if (GetRectanglePosition(this.rectangleF4, point, this.rotationPoint, angleRotationL))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angleRotationL);
                    moveKb = 4;
                    return this.pointArray.Count + 1;
                }
                else if (GetRectanglePosition(this.rectangleF5, point, this.rotationPoint, angleRotationL))
                {
                    this.pointL = SetOffsetAfterRotation(point, this.rotationPoint, angleRotationL);
                    moveKb = 5;
                    return this.pointArray.Count + 1;
                }
                for (int i = 0; i < this.RectangleFList.Count; i++)
                {
                    num = i / 6;
                    RectangleF rectangleF = this.RectangleFList[i];
                    if (num + 1 < pointArray.Count)
                    {
                        if (measureStyleModel.linePositionP == 0)
                        {
                            this.rotationPoint1 = pointArray[num + 1];
                        }
                        else if (measureStyleModel.linePositionP == 1)
                        {
                            this.rotationPoint1 = new PointF((pointArray[num + 1].X + pointFs[num].X) / 2, (pointFs[num].Y + pointArray[num + 1].Y) / 2);
                        }
                        else if (measureStyleModel.linePositionP == 2)
                        {
                            this.rotationPoint1 = pointFs[num];
                        }
                        else if (measureStyleModel.linePositionP == 3)
                        {
                            this.rotationPoint1 = pointArray[num + 1];
                        }
                        else if (measureStyleModel.linePositionP == 4)
                        {
                            this.rotationPoint1 = new PointF((pointArray[num + 1].X + pointFs[num].X) / 2, (pointFs[num].Y + pointArray[num + 1].Y) / 2);
                        }
                        else if (measureStyleModel.linePositionP == 5)
                        {
                            this.rotationPoint1 = pointArray[num];
                        }
                        if (GetRectanglePosition(rectangleF, point, this.rotationPoint1, angleRotationP))
                        {
                            this.pointL = SetOffsetAfterRotation(point, this.rotationPoint1, angleRotationP);
                            moveKb = -i;
                            return this.pointArray.Count + 1;
                        }
                    }
                }
            }

            if (PointInObject(point))
                return 0;

            return -1;
        }

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

            return AreaRegion.IsVisible(point);
        }
        public override bool IntersectsWith(Rectangle rectangle)
        {
            CreateObjects();

            return AreaRegion.IsVisible(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(PointF p)
        {
            AddPoint(p);
            //startPoint = endPoint;
            //endPoint = p;
        }

        internal void setEndPoint(Point p)
        {
            endPoint = p;
        }
        public override List<PointF> GetPoints()
        {
            return pointArray;
        }

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