using System;
using System.Collections;
using System.Drawing;
using System.Text;

using Zanetti.Data;
using Travis.Storage;

namespace Zanetti.UI
{
    /// <summary>
    /// Fibonacci の概要の説明です。
    /// </summary>
    internal class Fibonacci
    {
        private PointF _pivot;
        private PointF _destination;
        private int _id; //SolidFibonacciからの作成時のみセット、それ以外は-1
        private LineDrawMode _mode;

        public enum LineDrawMode
        {
            Normal,
            Hilight,//☆Fibonacci 20180816 カンマ「,」追加
            Move//☆Fibonacci 20180816 追加
        }

        public Fibonacci(PointF p)
        {
            _pivot = p;
            _destination = p;
            _id = -1;
        }
        public Fibonacci(PointF p1, PointF p2)
        {
            _pivot = p1;
            _destination = p2;
            _id = -1;
        }
        //リサイズしたときなどの再計算
        public Fibonacci(DataFarm farm, int firstdateindex, SolidFibonacci fl, Trans value_to_y)
        {
            int p = Env.Layout.DatePitch;
            _pivot = new PointF((farm.DateToIndex(fl._date1) - firstdateindex) * p + p / 2, (float)value_to_y.TransValue(fl._value1));
            _destination = new PointF((farm.DateToIndex(fl._date2) - firstdateindex) * p + p / 2, (float)value_to_y.TransValue(fl._value2));
            _id = fl._id;
        }

        public PointF Pivot
        {
            get
            {
                return _pivot;
            }
            //☆Fibonacci 20180816 setは不要
        }
        public PointF Destination
        {
            get
            {
                return _destination;
            }
            set
            {
                _destination = value;
            }
        }
        public LineDrawMode DrawMode
        {
            get
            {
                return _mode;
            }
            set
            {
                _mode = value;
            }
        }
        public int ID
        {
            get
            {
                return _id;
            }
        }

        public void SetHighPriceAndLowPrice(DataFarm farm, Trans pricetrans, float x1, float x2, int FirstDateIndex)
        {
            var range_max = double.MinValue;//☆Fibonacci 20180816 新規追加
            var range_min = double.MaxValue;//☆Fibonacci 20180816 新規追加
            var y1 = double.MinValue;//☆Fibonacci 20180816 新規追加
            var y2 = double.MinValue;//☆Fibonacci 20180816 新規追加
            if (x1 > Env.Layout.ChartAreaWidth || x2 > Env.Layout.ChartAreaWidth)
                return;
            int ind1 = FirstDateIndex + (int)Math.Floor((double)Math.Min(x1, x2) / Env.Layout.DatePitch);
            int ind2 = FirstDateIndex + (int)Math.Floor((double)Math.Max(x1, x2) / Env.Layout.DatePitch);
            if (ind1 < 0) ind1 = 0;
            if (ind2 < 0) ind2 = 0;
            if (ind1 >= farm.FilledLength) ind1 = farm.FilledLength - 1;//☆Fibonacci 20180816 修正
            if (ind2 >= farm.FilledLength) ind2 = farm.FilledLength - 1;//☆Fibonacci 20180816 修正
            //最高値と最安値の株価
            range_max = Max(farm, ind1, ind2);//☆Fibonacci 20180816 修正
            range_min = Min(farm, ind1, ind2);//☆Fibonacci 20180816 修正
            //最高値と最安値の画面上の位置
            //var y1 = pricetrans.TransValue(_pivot.Y > _destination.Y ? Env.Preference.InverseChart ? range_max : range_min : Env.Preference.InverseChart ? range_min : range_max);//☆Fibonacci 20180816 コメントアウト
            //var y2 = pricetrans.TransValue(_pivot.Y > _destination.Y ? Env.Preference.InverseChart ? range_min : range_max : Env.Preference.InverseChart ? range_max : range_min);//☆Fibonacci 20180816 コメントアウト
            //☆Fibonacci 20180816 新規追加ここから
            if (_mode != Fibonacci.LineDrawMode.Move && _id < 0)//モードが移動モード、かつ引いたばかりのフィボナッチラインではない
            {
                //_pivot.Y > _destination.Y は下から上に引いた線の意味
                y1 = pricetrans.TransValue(_pivot.Y > _destination.Y ? Env.Preference.InverseChart ? range_max : range_min : Env.Preference.InverseChart ? range_min : range_max);//☆Fibonacci 20180816 変更
                y2 = pricetrans.TransValue(_pivot.Y > _destination.Y ? Env.Preference.InverseChart ? range_min : range_max : Env.Preference.InverseChart ? range_max : range_min);//☆Fibonacci 20180816 変更
            }
            else
            {
                y1 = _pivot.Y < _destination.Y ? Env.Preference.InverseChart ? _pivot.Y : _destination.Y : Env.Preference.InverseChart ? _destination.Y : _pivot.Y;
                y2 = _pivot.Y < _destination.Y ? Env.Preference.InverseChart ? _destination.Y : _pivot.Y : Env.Preference.InverseChart ? _pivot.Y : _destination.Y;
            }
            //ここまで
            //_pivot = new PointF(x1, (float)y1);//☆Fibonacci 20180816 コメントアウト
            //_destination = new PointF(x2, (float)y2);//☆Fibonacci 20180816 コメントアウト
            _pivot = new PointF(_pivot.X < _destination.X ? Math.Min(x1, x2) : Math.Max(x1, x2), _pivot.Y < _destination.Y ? (float)Math.Min(y1, y2) : (float)Math.Max(y1, y2));//☆Fibonacci 20180816 新規追加
            _destination = new PointF(_pivot.X < _destination.X ? Math.Max(x1, x2) : Math.Min(x1, x2), _pivot.Y < _destination.Y ? (float)Math.Max(y1, y2) : (float)Math.Min(y1, y2));//☆Fibonacci 20180816 新規追加
        }

        private double Max(DataFarm farm, int ind1, int ind2)
        {
            var pos = ind1;
            var max = double.MinValue;
            var last = ind2 > farm.FilledLength ? farm.FilledLength - 1 : ind2;
            try
            {
                while (pos <= last)
                {
                    var a = BitConverter.ToInt32(farm.RawDataImage, pos * 32 + 4 * 2) * farm.Brand.PriceScale / (Env.Preference.AdjustSplit ? farm.CalcSplitRatio(BitConverter.ToInt32(farm.RawDataImage, pos * 32)) : 1);
                    Console.WriteLine(pos);
                    if (max < a) max = a;
                    pos++;
                }
            }catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            return max;
        }
        private double Min(DataFarm farm, int ind1, int ind2)
        {
            var pos = ind1;
            var min = double.MaxValue;
            var last = ind2 > farm.FilledLength ? farm.FilledLength - 1 : ind2;
            while (pos <= last)
            {
                var a = BitConverter.ToInt32(farm.RawDataImage, pos * 32 + 4 * 3) * farm.Brand.PriceScale / (Env.Preference.AdjustSplit ? farm.CalcSplitRatio(BitConverter.ToInt32(farm.RawDataImage, pos * 32)) : 1);
                if (min > a) min = a;
                pos++;
            }
            return min;
        }
        public Rectangle GetInclusion(Rectangle rect)
        {
            if (_pivot == _destination)
                return new Rectangle(new Point((int)_pivot.X, (int)_pivot.Y), new Size(0, 0));
            Point[] es = GetEdge(rect, new Point((int)_pivot.X, (int)_pivot.Y), new Point((int)_destination.X, (int)_destination.Y));
            return new Rectangle(Math.Min(es[0].X, es[1].X), Math.Min(es[0].Y, es[1].Y), Math.Abs(es[0].X - es[1].X), Math.Abs(es[0].Y - es[1].Y));
        }

        //十分に離した位置でないと線を確定させないようにする
        public bool PivotHasEnoughDistanceTo(PointF pt)
        {
            return Math.Abs(_pivot.X - pt.X) > 10 || Math.Abs(_pivot.Y - pt.Y) > 10;
        }

        //☆Fibonacci 20180816 Drawはまるまる書き直し ここから
        public void Draw(Trans pricetrans, Rectangle rect, IntPtr hdc)
        {
            Win32.POINT pt = new Win32.POINT();
            //Win32.SelectObject(hdc, _mode == LineDrawMode.Normal ? Env.Preference.FibonacciPen.Handle : Env.Preference.FibonacciBoldPen.Handle);//☆Fibonacci 20180816 コメントアウト
            //var fibo = new double[] { -2.618, -1.618, 0, .236, .382, .5, .618, .764, 1, 1.618, 2.618 };
            //var fibo = new double[] { 0, .236, .382, .5, .618, .764, 1 };
            var fibo = new double[] { 0, .382, .5, .618, 1 };
            foreach (var f in fibo)
            {
                Win32.SelectObject(hdc, f == 0 ? Env.Preference.FibonacciBoldPen.Handle : f == 1 ? Env.Preference.FibonacciPen.Handle : f == .5 ? Env.Preference.FibonacciPen.Handle : Env.Preference.FibonacciDottedPen.Handle);//☆Fibonacci 20180816 追加
                FibonacciDrawLines fdl = new FibonacciDrawLines(_pivot, _destination, f, fibo);
                fdl.Draw(pricetrans, rect, hdc, out pt);
            }
        }//ここまで

        //☆Fibonacci 20180816 追加
        private void DrawTheLine(IntPtr hdc, float px1, float px2, float py, double kabuka, string text, out Win32.POINT pt)
        {
            Win32.MoveToEx(hdc, (int)px1, (int)py, out pt);
            Win32.LineTo(hdc, (int)px2, (int)py);
            DrawText(hdc, (int)px2, (int)py, kabuka);
            DrawText(hdc, (int)px1 - 30, (int)py, text);
        }
        private void DrawText(IntPtr hdc, int x, int y, string s)
        {
            Win32.SetTextColor(hdc, Util.ToCOLORREF(Color.White));
            ChartUtil.DrawText(hdc, x + 3, y - 6, s);
        }
        private void DrawTheLine(IntPtr hdc, float px1, float px2, float py, double kabuka, out Win32.POINT pt)
        {
            Win32.MoveToEx(hdc, (int)px1, (int)py, out pt);
            Win32.LineTo(hdc, (int)px2, (int)py);
            DrawText(hdc, (int)px2, (int)py, kabuka);
        }
        private void DrawText(IntPtr hdc, int x, int y, double d)
        {
            Win32.SetTextColor(hdc, Util.ToCOLORREF(Color.White));
            ChartUtil.DrawText(hdc, x + 3, y - 6, string.Format("{0:N}", d));
        }

        //p1,p2がrectに入っているとき、p1からp2に伸ばした線とp2からp1に伸ばした線がそれぞれrectと交差するところを返す
        private static Point[] GetEdge(Rectangle rect, Point p1, Point p2)
        {
            Point[] result = new Point[2];
            ArrayList ar = GetAllEdges(rect, p1, p2);
            if (ar.Count == 2) return (Point[])ar.ToArray(typeof(Point));

            result[0] = (Point)(p1.X > p2.X ? ar[1] : ar[2]);
            result[1] = (Point)(p1.X > p2.X ? ar[2] : ar[1]);
            return result;
        }
        //p1とp2を結ぶ線がrectを構成する４直線と交差する点を返す。水平・垂直のときは２個になる
        private static ArrayList GetAllEdges(Rectangle rect, Point p1, Point p2)
        {
            ArrayList ar = new ArrayList();
            if (p1.X == p2.X)
            {
                ar.Add(new Point(p1.X, p1.Y < p2.Y ? rect.Bottom : rect.Top));
                ar.Add(new Point(p1.X, p1.Y > p2.Y ? rect.Bottom : rect.Top));
                return ar;
            }
            else if (p1.Y == p2.Y)
            {
                ar.Add(new Point(p1.X < p2.X ? rect.Right : rect.Left, p1.Y));
                ar.Add(new Point(p1.X > p2.X ? rect.Right : rect.Left, p1.Y));
                return ar;
            }

            LinearTrans lt = LinearTrans.Solve(p1.X, p1.Y, p2.X, p2.Y);
            ar.Add(new Point(rect.Left, (int)lt.TransValue(rect.Left)));
            ar.Add(new Point(rect.Right, (int)lt.TransValue(rect.Right)));
            ar.Add(new Point((int)lt.Inverse(rect.Top), rect.Top));
            ar.Add(new Point((int)lt.Inverse(rect.Bottom), rect.Bottom));
            //この４点をX座標の順に並べ、２番目と３番目が答え
            ar.Sort(new PointComparer());
            return ar;
        }
        private class PointComparer : IComparer
        {

            public int Compare(object x, object y)
            {
                return ((Point)x).X - ((Point)y).X;
            }
        }

        public SolidFibonacci ToSolid(DataFarm farm, int firstdateindex, Trans value_to_y)
        {
            SolidFibonacci fl = new SolidFibonacci();
            int ind1 = firstdateindex + (int)Math.Floor((double)_pivot.X / Env.Layout.DatePitch);
            int ind2 = firstdateindex + (int)Math.Floor((double)_destination.X / Env.Layout.DatePitch);

            LinearTrans tr = LinearTrans.Solve(ind1, _pivot.Y, ind2, _destination.Y);
            double y1 = _pivot.Y;
            if (ind1 >= farm.FilledLength)
            {
                ind1 = farm.FilledLength - 1;
                //y1 = tr.TransValue(ind1);//☆Fibonacci 20180816 コメントアウト freelineと違ってy軸、つまり株価は移動しなくていい
            }
            else if (ind1 < 0)
            {
                ind1 = 0;
                y1 = tr.TransValue(ind1);
            }
            fl._date1 = farm.GetByIndex(ind1).Date;
            fl._value1 = value_to_y.Inverse(y1);

            double y2 = _destination.Y;
            if (ind2 >= farm.FilledLength)
            {
                ind2 = farm.FilledLength - 1;
                //y2 = tr.TransValue(ind2);//☆Fibonacci 20180816 コメントアウト freelineと違ってy軸、つまり株価は移動しなくていい
            }
            else if (ind2 < 0)
            {
                ind2 = 0;
                y2 = tr.TransValue(0);
            }
            fl._date2 = farm.GetByIndex(ind2).Date;
            fl._value2 = value_to_y.Inverse(y2);
            //_id==-1は作ったばかりのフィボナッチで、0以上は既存フィボナッチ
            if (_id == -1)
            {
                fl._id = SolidFibonacci.NextID++;
                _id = fl._id;
            }
            else
            {
                fl._id = _id;
            }
            return fl;
        }

        //☆Fibonacci 20180816 変更 GetDistanceは全面的に書き直し
        public double GetDistance(Point p)
        {
            return Math.Min(GetDistanceUpside(p), GetDistanceDownside(p));
        }
        //☆Fibonacci 20180816 新規
        //最上部のフィボナッチラインとマウスカーソルとの直線距離
        //マウスカーソルがフィボナッチラインの幅内にあった場合のみ、マウスカーソルと最上部フィボナッチラインの縦幅を計測して返す
        public double GetDistanceUpside(Point p)
        {
            var y = Math.Min(_pivot.Y, _destination.Y);
            var xl = Math.Min(_pivot.X, _destination.X);
            var xr = Math.Max(_pivot.X, _destination.X);
            return (p.X < xl || xr < p.X) ? double.MaxValue : Math.Abs(y - p.Y);
        }
        //☆Fibonacci 20180816 新規
        //最下部のフィボナッチラインとマウスカーソルとの直線距離
        //マウスカーソルがフィボナッチラインの幅内にあった場合のみ、マウスカーソルと最下部フィボナッチラインの縦幅を計測して返す
        public double GetDistanceDownside(Point p)
        {
            var y = Math.Max(_pivot.Y, _destination.Y);
            var xl = Math.Min(_pivot.X, _destination.X);
            var xr = Math.Max(_pivot.X, _destination.X);
            return (p.X < xl || xr < p.X) ? double.MaxValue : Math.Abs(y - p.Y);
        }

        //両端を通る直線を ax+by+c=0, a^2+b^2=1 となる形式でa,b,cの配列で返す
        private double[] GetNormalizedParam()
        {
            double a, b, c;
            if (_pivot.X == _destination.X)
            {
                a = 1;
                b = 0;
            }
            else
            {
                double d = -(_pivot.Y - _destination.Y) / (double)(_pivot.X - _destination.X);
                b = Math.Sqrt(1 / (1 + d * d));
                a = b * d;
            }
            c = -(a * _pivot.X + b * _pivot.Y);
            return new double[] { a, b, c };
        }
    }

    internal class SolidFibonacci
    {
        public int _id;
        public int _code;
        public ChartFormat _targetFormat;
        public bool _logScale;
        public int _date1;
        public double _value1;
        public int _date2;
        public double _value2;


        private static int _nextID;
        public static int NextID
        {
            get
            {
                return _nextID;
            }
            set
            {
                _nextID = value;
            }
        }
    }

    internal class FibonacciCollection
    {
        private ArrayList _data;
        public FibonacciCollection()
        {
            _data = new ArrayList();
        }
        public int Count
        {
            get
            {
                return _data.Count;
            }
        }

        public void Add(AbstractBrand br, ChartFormat format, bool logScale, SolidFibonacci fl)
        {
            fl._code = br.Code;
            fl._targetFormat = format;
            fl._logScale = logScale;
            _data.Add(fl);
        }

        public SolidFibonacci[] Find(AbstractBrand br, ChartFormat format, bool logScale)
        {
            ArrayList t = new ArrayList();
            foreach (SolidFibonacci fl in _data)
            {
                if (fl._code == br.Code && fl._targetFormat == format && fl._logScale == logScale)
                    t.Add(fl);
            }
            return (SolidFibonacci[])t.ToArray(typeof(SolidFibonacci));
        }

        public void ClearAll()
        {
            _data.Clear();
        }
        public void Clear(AbstractBrand br, ChartFormat format, bool logScale)
        {
            ArrayList temp = new ArrayList();
            IEnumerator ie = _data.GetEnumerator();
            while (ie.MoveNext())
            {
                SolidFibonacci fl = (SolidFibonacci)ie.Current;
                if (!(fl._code == br.Code && fl._targetFormat == format && fl._logScale == logScale))
                    temp.Add(fl);
            }
            _data = temp;
        }
        public void Remove(int id)
        {
            for (int i = 0; i < _data.Count; i++)
            {
                SolidFibonacci l = (SolidFibonacci)_data[i];
                if (l._id == id)
                {
                    _data.RemoveAt(i);
                    break;
                }
            }
        }


        public void Load(StorageNode parent)
        {
            string t = parent["fibonacci-lines"];
            if (t == null) return;
            foreach (string ee in t.Split(','))
            {
                if (ee == null) continue;
                if (ee.Trim() == string.Empty) continue;
                SolidFibonacci fl = new SolidFibonacci();
                string[] e = ee.Split(':');
                fl._code = Int32.Parse(e[0]);
                switch (e[1])
                {
                    case "D":
                        fl._targetFormat = ChartFormat.Daily;
                        fl._logScale = false;
                        break;
                    case "W":
                        fl._targetFormat = ChartFormat.Weekly;
                        fl._logScale = false;
                        break;
                    case "M":
                        fl._targetFormat = ChartFormat.Monthly;
                        fl._logScale = false;
                        break;
                    case "Y":
                        fl._targetFormat = ChartFormat.Yearly;
                        fl._logScale = false;
                        break;
                    case "DL":
                        fl._targetFormat = ChartFormat.Daily;
                        fl._logScale = true;
                        break;
                    case "WL":
                        fl._targetFormat = ChartFormat.Weekly;
                        fl._logScale = true;
                        break;
                    case "ML":
                        fl._targetFormat = ChartFormat.Monthly;
                        fl._logScale = true;
                        break;
                    case "YL":
                        fl._targetFormat = ChartFormat.Yearly;
                        fl._logScale = true;
                        break;
                }
                fl._date1 = Int32.Parse(e[2]);
                fl._value1 = Double.Parse(e[3]);
                fl._date2 = Int32.Parse(e[4]);
                fl._value2 = Double.Parse(e[5]);
                fl._id = SolidFibonacci.NextID++;
                _data.Add(fl);
            }
        }
        public void SaveTo(StorageNode parent)
        {
            StringBuilder bld = new StringBuilder();
            foreach (SolidFibonacci sl in _data)
            {
                if (bld.Length > 0) bld.Append(",");
                String format;
                switch (sl._targetFormat)
                {
                    case ChartFormat.Daily:
                    default:
                        format = "D";
                        break;
                    case ChartFormat.Weekly:
                        format = "W";
                        break;
                    case ChartFormat.Monthly:
                        format = "M";
                        break;
                    case ChartFormat.Yearly:
                        format = "Y";
                        break;
                }
                if (sl._logScale)
                {
                    format += "L";
                }
                bld.Append(String.Format("{0}:{1}:{2}:{3:F2}:{4}:{5:F2}", sl._code, format, sl._date1, sl._value1, sl._date2, sl._value2));
            }
            parent["fibonacci-lines"] = bld.ToString();
        }
    }
    //☆Fibonacci 20180816 新規追加
    internal class FibonacciDrawLines
    {
        bool _log = false;
        PointF _pivot;
        PointF _dest;
        double _fibopos = .0;
        double[] _fibonacci;
        string _text = string.Empty;
        public FibonacciDrawLines(PointF pivot, PointF dest, double fibopos, double[] fibonacci)
        {
            _pivot = pivot;
            _dest = dest;
            _fibopos = fibopos;
            _fibonacci = fibonacci;
        }
        public void Draw(Trans pricetrans, Rectangle rect, IntPtr hdc, out Win32.POINT pt)
        {
            var k = retKabuka(pricetrans);
            var y = (int)retY(k, pricetrans);
            Win32.MoveToEx(hdc, (int)Math.Min(_pivot.X, _dest.X), y, out pt);
            Win32.LineTo(hdc, (int)Math.Max(_pivot.X, _dest.X), y);
            DrawText(hdc, (int)Math.Max(_pivot.X, _dest.X), y, k);
            DrawText(hdc, (int)Math.Min(_pivot.X, _dest.X) - 30, y, retText());
        }
        private string retText()
        {
            return _fibopos == 0 ? _pivot.Y < _dest.Y ? "100" : "0" : //マウスが上から下に動いてフィボナッチリトレースメントを作ったとき逆転させる
                   _fibopos == 1 ? _pivot.Y < _dest.Y ? "0" : "100" : //マウスが上から下に動いてフィボナッチリトレースメントを作ったとき逆転させる
                   string.Format("{0:00.0}", _fibopos * 100);//天底以外の数値(0.618とか）はretKabukaでハンドリングするのでここでは逆転させない
        }
        private double retKabuka(Trans pricetrans)
        {
            var ret = .0;
            if (_log)//対数チャートの場合
            {
                //上下逆転チャートではない、かつマウスを下から上に引いて作った、　もしくは上下逆転チャート、かつマウスを上から下に引いて作った
                if ((!Env.Preference.InverseChart && _pivot.Y > _dest.Y) || (Env.Preference.InverseChart && _pivot.Y < _dest.Y))
                {
                    ret = _fibopos == 0 ? pricetrans.Inverse(Math.Min(_pivot.Y, _dest.Y))
                        : _fibopos == 1 ? pricetrans.Inverse(Math.Max(_pivot.Y, _dest.Y))
                        : pricetrans.Inverse(Math.Max(_pivot.Y, _dest.Y) - Math.Abs(_pivot.Y - _dest.Y) * _fibopos);
                }
                else
                {
                    ret = _fibopos == 0 ? pricetrans.Inverse(Math.Min(_pivot.Y, _dest.Y))
                    : _fibopos == 1 ? pricetrans.Inverse(Math.Max(_pivot.Y, _dest.Y))
                    : pricetrans.Inverse(Math.Min(_pivot.Y, _dest.Y) + Math.Abs(_pivot.Y - _dest.Y) * _fibopos);
                }
            }
            else
            {
                var k1 = pricetrans.Inverse(Math.Min(_pivot.Y, _dest.Y));
                var k5 = pricetrans.Inverse(Math.Max(_pivot.Y, _dest.Y));
                //上下逆転チャートではない、かつマウスを下から上に引いて作った、　もしくは上下逆転チャート、かつマウスを上から下に引いて作った
                if ((!Env.Preference.InverseChart && _pivot.Y > _dest.Y) || (Env.Preference.InverseChart && _pivot.Y < _dest.Y))
                {
                    ret = _fibopos == 0 ? k1 : _fibopos == 1 ? k5 : Math.Max(k1, k5) - Math.Abs(k1 - k5) * _fibopos;
                }
                else
                {
                    ret = _fibopos == 0 ? k1 : _fibopos == 1 ? k5 : Math.Min(k1, k5) + Math.Abs(k1 - k5) * _fibopos;
                }
            }
            return ret;
        }
        private float retY(double k, Trans pricetrans)
        {
            var ret = 0F;
            if (_log)
            {
                ret = _fibopos == 0 ? Math.Min(_pivot.Y, _dest.Y)
                      : _fibopos == 1 ? Math.Max(_pivot.Y, _dest.Y)
                      : (float)(Math.Abs(_pivot.Y - _dest.Y) * _fibopos + Math.Min(_pivot.Y, _dest.Y));
            }
            else
            {
                ret = _fibopos == 0 ? Math.Min(_pivot.Y, _dest.Y)
                      : _fibopos == 1 ? Math.Max(_pivot.Y, _dest.Y)
                      : (float)pricetrans.TransValue(k);
            }
            return ret;
        }
        private void DrawText(IntPtr hdc, int x, int y, string s)
        {
            Win32.SetTextColor(hdc, Util.ToCOLORREF(Color.White));
            ChartUtil.DrawText(hdc, x + 3, y - 6, s);
        }
        private void DrawText(IntPtr hdc, int x, int y, double d)
        {
            Win32.SetTextColor(hdc, Util.ToCOLORREF(Color.White));
            ChartUtil.DrawText(hdc, x + 3, y - 6, string.Format("{0:N}", d));
        }
    }
}