MTP2.0_CSharp/Muchinfo.Common/Fx4.0/Muchinfo.ChartClient/MuchInfo.Chart/MuchInfo.Chart.WPF/Primitives/AllDateScaler.cs

using Microsoft.VisualBasic.CompilerServices;
using MuchInfo.Chart.Data.Interfaces;
using MuchInfo.Chart.WPF.Primitives.Interfaces;
using System;
using System.Collections.Generic;
using System.Linq;

namespace MuchInfo.Chart.WPF.Primitives
{
    public class AllDateScaler : IDateScaler
    {
        #region Fields

        /// <summary>
        /// 是否是外汇
        /// </summary>
        private bool _isForex;
        private Chart _chart;
        private IList<ILineDataPoint> _dataSource;

        /// <summary>
        /// 设置当前时间间隔如 5Y 3Y 3M Today...
        /// </summary>
        private string _desiredChartLength;
        private Dictionary<DateTime, int> _dictionary;

        /// <summary>
        /// 结束日期
        /// </summary>
        private DateTime _endDateTime;

        /// <summary>
        /// 最后一个数据索引
        /// </summary>
        private int _endIndex;
        private IList<IDateDataPoint> _extraDataPoints;

        /// <summary>
        /// 数据节点列表
        /// </summary>
        private IList<IDateDataPoint> _fullDataPoints;

        /// <summary>
        /// FutureSplitPercent
        /// 左右分割线
        /// </summary>
        private float _futureSplitPercent;
        private bool _hasNonEODDates;

        /// <summary>
        /// 数据节点总长度
        /// </summary>
        private int _length;

        /// <summary>
        /// 时间间隔下的第一个数据索引 >=5
        /// </summary>
        private int _numBars;

        /// <summary>
        /// 左边纵坐标引起的位移
        /// </summary>
        private double _offset;

        /// <summary>
        /// 时间线，如1分钟线、2分钟线...
        /// </summary>
        private TimeSpan _timeSpan;

        #endregion Fields

        #region Constructors

        public AllDateScaler(Chart chart)
        {
            this._chart = chart;
            this._dictionary = new Dictionary<DateTime, int>();
            this._endDateTime = DateTime.MaxValue;
            this._desiredChartLength = "";
            this._endIndex = 0;
            //numBars为矩形柱间距，矩形柱数量实际要-1
            this._numBars = _chart.RecordCountInternal - 1;

            //左右分割线-决定右边空出位置
            this._futureSplitPercent = 0.0f;//0.1f;

            this._hasNonEODDates = false;
            this._isForex = false;
        }

        #endregion Constructors

        #region Properties

        #region Public Properties

        public string DesiredChartLength
        {
            get
            {
                return this._desiredChartLength;
            }
            set
            {
                this._desiredChartLength = value;
                this.OnScalerPropertyChanged();
            }
        }

        public DateTime DesiredEndDate
        {
            get
            {
                return this._endDateTime;
            }
            set
            {
                bool flag = DateTime.Compare(this._endDateTime, value) != 0;
                if (flag)
                {
                    this._endDateTime = value;
                    this.OnScalerPropertyChanged();
                }
            }
        }

        public int EndDateIndex
        {
            get
            {
                return this._endIndex;
            }
            set
            {
                _endIndex = value;
            }
        }

        /// <summary>
        /// 最后一个数据索引
        /// </summary>
        public int EndIndex
        {
            get
            {
                return this._endIndex;
            }
        }

        public float FutureSplitPercent
        {
            get
            {
                return this._futureSplitPercent;
            }
            set
            {
                bool flag = (double)value > 0.9;
                if (flag)
                {
                    this._futureSplitPercent = value;
                }
                else
                {
                    flag = (value < 0f);
                    if (flag)
                    {
                        this._futureSplitPercent = 0f;
                    }
                    else
                    {
                        this._futureSplitPercent = value;
                    }
                }
                this.OnScalerPropertyChanged();
            }
        }

        public int IndexOfLastDataDate
        {
            get
            {
                bool flag = this._dataSource != null && this._dataSource.Count > 0;
                checked
                {
                    int result;
                    if (flag)
                    {
                        result = this.IndexFromDate(this._dataSource[this._dataSource.Count - 1].Date);
                    }
                    else
                    {
                        result = this._fullDataPoints == null ? 0 : this._fullDataPoints.Count - 1;
                    }
                    return result;
                }
            }
        }

        /// <summary>
        /// 时间间隔下的第一个数据索引(时间轴节点间的间距) >=5
        /// </summary>
        public int NumBars
        {
            get
            {
                return this._numBars;
            }
            set
            {
                bool flag = this._numBars != value;
                if (flag)
                {
                    //numBars为矩形柱间距，矩形柱数量实际要-1
                    var minBarsCount = _chart.MinRecordCountInternal - 1;
                    var maxBarsCount = _chart.MaxRecordCountInternal - 1;
                    this._numBars = value;
                    flag = (this._numBars < minBarsCount);
                    if (flag)
                    {
                        this._numBars = minBarsCount;
                    }

                    //限制滑块滑动显示数据范围
                    _numBars = (this._numBars < minBarsCount) ? minBarsCount
                        : ((this._numBars > maxBarsCount) ? maxBarsCount : _numBars);

                    //最小值为4
                    _numBars = Math.Max(4, _numBars);

                    this._desiredChartLength = "";
                    this.OnScalerPropertyChanged();
                }
            }
        }

        public int StartDateIndex
        {
            get
            {
                return Math.Max(0, checked(this._endIndex - this._numBars));
            }
            set
            {
                _endIndex = value;
            }
        }

        #endregion Public Properties

        #endregion Properties

        #region Methods

        #region Public Methods

        public int BinaryIndexSearch(DateTime aDate, int MinIndex)
        {
            int i = MinIndex;

            //int num = this.EndIndex;
            //大于原始数据最大的取原始最大
            var originalEndIndex = _dataSource.Count - 1;
            var num = _endIndex > originalEndIndex ? originalEndIndex : _endIndex;

            bool flag = false;
            bool flag2 = DateTime.Compare(aDate, this.DateValue(num)) > 0;
            checked
            {
                int result;
                if (flag2)
                {
                    result = -1;
                }
                else
                {
                    flag2 = this._dictionary.ContainsKey(aDate);
                    int num2 = 0;
                    if (flag2)
                    {
                        flag = true;
                        num2 = this._dictionary[aDate];
                    }
                    else
                    {
                        while (i < num)
                        {
                            flag2 = (num - i > 60);
                            if (flag2)
                            {
                                num2 = (int)Math.Round(unchecked((double)i + (double)checked(num - i) / 20.0));
                            }
                            else
                            {
                                num2 = (int)Math.Round((double)(i + num) / 2.0);
                            }
                            flag2 = (DateTime.Compare(aDate, this.DateValue(num2)) > 0);
                            if (flag2)
                            {
                                i = num2 + 1;
                            }
                            else
                            {
                                flag2 = (DateTime.Compare(aDate, this.DateValue(num2)) < 0);
                                if (!flag2)
                                {
                                    flag = true;
                                    break;
                                }
                                num = num2 - 1;
                            }
                        }
                    }
                    flag2 = flag;
                    int num3;
                    if (flag2)
                    {
                        num3 = num2;
                    }
                    else
                    {
                        flag2 = (DateTime.Compare(this.DateValue(i), aDate) == 0);
                        if (flag2)
                        {
                            num3 = i;
                        }
                        else
                        {
                            flag2 = (DateTime.Compare(this.DateValue(i), aDate) < 0);
                            if (flag2)
                            {
                                num3 = i + 1;
                            }
                            else
                            {
                                flag2 = (DateTime.Compare(this.DateValue(i), aDate) > 0);
                                if (flag2)
                                {
                                    num3 = i;
                                }
                                else
                                {
                                    num3 = num2 - 1;
                                }
                            }
                        }
                    }
                    result = num3;
                }
                return result;
            }
        }

        public int Count()
        {
            bool flag = this._fullDataPoints == null;
            int result;
            if (flag)
            {
                result = 0;
            }
            else
            {
                result = this._fullDataPoints.Count;
            }
            return result;
        }

        /// <summary>
        /// Dates the contains.
        /// </summary>
        /// <param name="date">The date.</param>
        /// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
        public bool DateContains(DateTime date)
        {
            return _dictionary.Keys.Contains(date);
        }

        public DateTime DateFromX(double aX)
        {
            checked
            {
                var result = new DateTime();
                try
                {
                    bool flag = !(this._fullDataPoints != null && this._fullDataPoints.Count != 0 && this._endIndex != this.StartDateIndex);
                    if (flag)
                    {
                        var dateTime = new DateTime(1900, 1, 1);
                        result = dateTime;
                    }
                    else
                    {
                        //通过x取日期时去掉左边纵坐标的宽度
                        double num = (aX - _offset) / (double)this.WidthWithBarBuffer();
                        int num2 = (int)Math.Round((double)unchecked((float)this.StartDateIndex + (float)checked(this._endIndex - this.StartDateIndex) * num));
                        flag = (num2 >= 0 && num2 < this._fullDataPoints.Count);
                        if (flag)
                        {
                            result = this._fullDataPoints[num2].Date;
                        }
                        //else
                        //{
                        //    DateTime dateTime2 = MarketDates.DateFromMarketDateId((int)Math.Round((double)unchecked((float)this.AllDateScaler_718 + num * (float)checked(this.AllDateScaler_719 - this.AllDateScaler_718))), this.isForex);
                        //    flag = (this.AllDateScaler_716.Days < 1);
                        //    if (flag)
                        //    {
                        //        result = dateTime2;
                        //    }
                        //    else
                        //    {
                        //        result = dateTime2.Date;
                        //    }
                        //}
                    }
                }
                catch (Exception ex)
                {
                    throw ex;
                }
                return result;
            }
        }

        public DateTime DateValue(int aIndex)
        {
            if (this._fullDataPoints == null || !this._fullDataPoints.Any()) return default(DateTime);
            var flag = aIndex >= 0 && aIndex < this._fullDataPoints.Count;
            return flag ? this._fullDataPoints[aIndex].Date : default(DateTime);
        }

        public bool DateVisible(DateTime aDate)
        {
            var allDateScaler = this._fullDataPoints;

            //只有一条数据直接返回true
            if (allDateScaler == null || allDateScaler.Count == 1) return true;
            bool flag = true;
            if (allDateScaler.Count != 0)
            {
                if (this._endIndex != this.StartDateIndex)
                {
                    flag = false;
                }
            }
            bool result;
            if (flag)
            {
                result = false;
            }
            else
            {
                flag = true;
                if (this.StartDateIndex >= 0 && this.EndIndex >= 0)
                {
                    if (this.StartDateIndex < allDateScaler.Count)
                    {
                        if (this.EndIndex < allDateScaler.Count)
                        {
                            flag = false;
                        }
                    }
                }

                if (flag)
                {
                    result = false;
                }
                else
                {
                    //大于原始数据最大的取原始最大
                    var originalEndIndex = _dataSource.Count - 1;
                    var endIndex = _endIndex > originalEndIndex ? originalEndIndex : _endIndex;

                    //修复第一条不可见Bug：重新变成>=
                    flag = (DateTime.Compare(aDate, allDateScaler[this.StartDateIndex].Date) >= 0
                        && DateTime.Compare(aDate, allDateScaler[endIndex].Date) <= 0);
                    result = flag;
                }
            }
            return result;
        }

        /// <summary>
        /// 数据间的间隔
        /// </summary>
        /// <returns></returns>
        public double DistanceBetweenDates()
        {
            bool flag = this._fullDataPoints == null;
            double result;
            if (flag)
            {
                result = 0f;
            }
            else
            {
                flag = (this._fullDataPoints.Count > 0 && this._endIndex != this.StartDateIndex);
                if (flag)
                {
                    result = ((double)this._length * (1.0 / (double)checked(this._endIndex - this.StartDateIndex + 1)));
                }
                else
                {
                    result = 0f;
                }
            }
            return result;
        }

        /// <summary>
        /// Firsts the visible index from data.
        /// </summary>
        /// <param name="data">The data.</param>
        /// <returns>System.Int32.</returns>
        public int FirstVisibleIndexFromData(IList<ILineDataPoint> data)
        {
            if (this._fullDataPoints == null || !this._fullDataPoints.Any()) return 0;

            var startTime = this._fullDataPoints[this.StartDateIndex].Date;
            var dataPoint = data.FirstOrDefault(z => z.Date >= startTime);
            if (dataPoint == null) return 0;
            var result = data.IndexOf(dataPoint);
            return result == -1 ? 0 : result;
        }

        public bool HasNonEODDates()
        {
            return this._hasNonEODDates;
        }

        public int IndexFromDate(DateTime aDate)
        {
            bool flag = this._dictionary.ContainsKey(aDate);
            int result;
            if (flag)
            {
                result = this._dictionary[aDate];
            }
            else
            {
                result = -100;
            }
            return result;
        }

        /// <summary>
        /// Lasts the visible index from data.
        /// </summary>
        /// <param name="data">The data.</param>
        /// <returns>System.Int32.</returns>
        public int LastVisibleIndexFromData(IList<ILineDataPoint> data)
        {
            if (this._fullDataPoints == null || !this._fullDataPoints.Any()) return 0;

            var endTime = this._fullDataPoints[this.EndDateIndex].Date;
            var dataPoint = data.FirstOrDefault(z => z.Date >= endTime);
            if (dataPoint == null) return data.Count - 1;
            var result = data.IndexOf(dataPoint);
            return result == -1 ? 0 : result;
        }

        public DateTime OriginalDateFromX(double aX)
        {
            if (_dataSource == null || !_dataSource.Any()) return default(DateTime);
            var count = this._dataSource.Count;
            if (this._dataSource != null && count != 0 && this._endIndex != this.StartDateIndex && this.WidthWithBarBuffer() != 0)
            {
                double num = (aX - _offset) / (double)this.WidthWithBarBuffer();
                var num2 = (int)Math.Round(this.StartDateIndex + (this._endIndex - this.StartDateIndex) * num);
                if (num2 < 0)
                {
                    return _dataSource.Min(z => z.Date);
                }
                if (num2 >= count - 1)
                {
                    return _dataSource.Max(z => z.Date);
                }
                return this._dataSource[num2].Date;
            }
            return new DateTime(1900, 1, 1);
        }

        public DateTime OriginalDateFromX(double aX, int offSet)
        {
            if (_dataSource == null || !_dataSource.Any()) return default(DateTime);
            var count = this._dataSource.Count;
            if (this._dataSource != null && count != 0 &&
                this._endIndex != this.StartDateIndex && this.WidthWithBarBuffer() != 0)
            {
                //通过x取日期时去掉左边纵坐标的宽度
                double num = (aX - _offset) / (double)this.WidthWithBarBuffer();
                var num2 = (int)Math.Round(this.StartDateIndex + (this._endIndex - this.StartDateIndex) * num) + offSet;
                if (num2 < 0) return _dataSource.Min(z => z.Date);
                if (num2 >= count - 1) return _dataSource.Max(z => z.Date);
                //修复第一条不可见Bug：n+1->n
                return this._dataSource[num2].Date;
            }
            return new DateTime(1900, 1, 1);
        }

        public DateTime OriginalDateValue(int aIndex)
        {
            if (_dataSource == null || !_dataSource.Any()) return default(DateTime);
            bool flag = aIndex >= 0 && aIndex < this._dataSource.Count;
            DateTime result;
            if (flag)
            {
                result = this._dataSource[aIndex].Date;
            }
            else
            {
                result = this._dataSource.Max(z => z.Date);
            }
            return result;
        }

        public float PercentFromDate(DateTime aDate)
        {
            bool flag = this._dictionary.ContainsKey(aDate);
            checked
            {
                float result = 0;
                if (flag)
                {
                    int num = this._dictionary[aDate];
                    result = (float)((double)(num - this.StartDateIndex) / (double)(this._endIndex - this.StartDateIndex));
                }
                //else
                //{
                //    int num2 = MarketDates.MarketDateId(aDate, this.isForex);
                //    result = (float)((double)(num2 - this.AllDateScaler_718) / (double)(this.AllDateScaler_719 - this.AllDateScaler_718));
                //}
                return result;
            }
        }

        public float PercentFromIndex(int aIndex)
        {
            bool flag = this._endIndex != this.StartDateIndex;
            float result = 0f;
            if (flag)
            {
                result = (float)checked((double)(aIndex - this.StartDateIndex) / (double)(this._endIndex - this.StartDateIndex));
            }
            return result;
        }

        public void SetDates(IList<ILineDataPoint> data, TimeSpan aTimeFrame, bool isForex)
        {
            this._isForex = isForex;
            this._timeSpan = aTimeFrame;
            this._dataSource = data;

            this.OnScalerPropertyChanged();
        }

        /// <summary>
        /// 设置滑动块的总长度
        /// </summary>
        /// <param name="width">绘图区宽度</param>
        /// <param name="offset">左边纵坐标引起的位移</param>
        public void SetPlotInfo(int width, float offset)
        {
            this._length = width;
            this._offset = offset;
        }

        public int WidthWithBarBuffer()
        {
            checked
            {
                //修复第一条不可见Bug：*0.3->* 1.3
                int num = (int)Math.Round(unchecked((double)this._length - (double)this.DistanceBetweenDates() * 1.3));
                num--;
                bool flag = num < 0;
                if (flag)
                {
                    num = 0;
                }
                return num;
            }
        }

        public float XforDate(DateTime aDate)
        {
            bool flag = !(this._fullDataPoints != null && this._fullDataPoints.Count != 0 && this._endIndex != this.StartDateIndex);

            float result = 0;
            if (flag)
            {
                result = -1000f;
            }
            else
            {
                //var item = aDate;
                //if (_chart.CycleType == CycleType.TimeSharing)
                //{
                //    item = _dictionary.Keys.FirstOrDefault(z => z.Date == aDate.Date && z.Hour == aDate.Hour && z.Minute == aDate.Minute);
                //    flag = this._dictionary.ContainsKey(item);
                //}
                //else
                //{
                flag = this._dictionary.ContainsKey(aDate);
                //}

                if (flag)
                {
                    //修复第一条不可见Bug：因为要右移1/2 DistanceBetweenDates(),,所以num +1
                    int num = this._dictionary[aDate] + 1;
                    result = (float)((double)this.WidthWithBarBuffer() * checked((double)(num - this.StartDateIndex) / (double)(this._endIndex - this.StartDateIndex)));
                    result -= (float)(DistanceBetweenDates() / 2);
                }
                else
                {
                    var a = string.Empty;
                    //int num2 = MarketDates.MarketDateId(aDate, this.isForex);
                    //result = (float)((double)this.WidthWithBarBuffer() * checked((double)(num2 - this.AllDateScaler_718) / (double)(this.AllDateScaler_719 - this.AllDateScaler_718)));
                }
            }
            return result;
        }

        #endregion Public Methods

        #region Private Methods

        /// <summary>
        /// 根据最后一天返回当前所设置时间间隔的第一天
        /// </summary>
        /// <param name="endDate"></param>
        /// <returns></returns>
        private DateTime GetCurrentFirstDate(DateTime endDate)
        {
            bool flag = endDate.Ticks == 0L;
            checked
            {
                var result = new DateTime();
                if (flag)
                {
                    result = endDate;
                }
                else
                {
                    string allDateScaler_ = this._desiredChartLength;
                    flag = allDateScaler_.Equals("5Y");
                    if (flag)
                    {
                        result = endDate.AddYears(-5);
                    }
                    else
                    {
                        flag = (Operators.CompareString(allDateScaler_, "1Y", false) == 0);
                        if (flag)
                        {
                            result = endDate.AddYears(-1);
                        }
                        else
                        {
                            flag = (Operators.CompareString(allDateScaler_, "YTD", false) == 0);
                            if (flag)
                            {
                                DateTime dateTime = new DateTime(endDate.Year, 1, 1);
                                result = dateTime;
                            }
                            else
                            {
                                flag = (Operators.CompareString(allDateScaler_, "6M", false) == 0);
                                if (flag)
                                {
                                    result = endDate.AddMonths(-6);
                                }
                                else
                                {
                                    flag = (Operators.CompareString(allDateScaler_, "3M", false) == 0);
                                    if (flag)
                                    {
                                        result = endDate.AddMonths(-3);
                                    }
                                    else
                                    {
                                        flag = (Operators.CompareString(allDateScaler_, "1M", false) == 0);
                                        if (flag)
                                        {
                                            result = endDate.AddMonths(-1);
                                        }
                                        else
                                        {
                                            flag = (Operators.CompareString(allDateScaler_, "1W", false) == 0);
                                            if (flag)
                                            {
                                                result = endDate.AddDays(-7.0);
                                            }
                                            else
                                            {
                                                flag = (Operators.CompareString(allDateScaler_, "1D", false) == 0);
                                                if (flag)
                                                {
                                                    int num = 1;
                                                    flag = this._isForex;
                                                    DateTime dateTime2;
                                                    if (flag)
                                                    {
                                                        dateTime2 = endDate.AddDays(-1.0);
                                                        while (dateTime2.DayOfWeek == (DayOfWeek)6 && num < 3)
                                                        {
                                                            dateTime2 = dateTime2.AddDays(-1.0);
                                                            num++;
                                                        }
                                                    }
                                                    else
                                                    {
                                                        dateTime2 = endDate.AddDays(-1.0);
                                                        while (true)
                                                        {
                                                            if (!Conversions.ToBoolean(num < 3))
                                                            {
                                                                goto IL_28E;
                                                            }
                                                            //if (!Conversions.ToBoolean(dateTime2.DayOfWeek == (DayOfWeek)6 || dateTime2.DayOfWeek == 0) && !Conversions.ToBoolean(MarketDates.IsWholeDayHoliday(dateTime2, this.isForex)))
                                                            //{
                                                            //    goto IL_28E;
                                                            //}

                                                            if (!Conversions.ToBoolean(dateTime2.DayOfWeek == (DayOfWeek)6 || dateTime2.DayOfWeek == 0))
                                                            {
                                                                goto IL_28E;
                                                            }

                                                            object arg_294_0 = true;
                                                        IL_294:
                                                            if (!Conversions.ToBoolean(arg_294_0))
                                                            {
                                                                break;
                                                            }
                                                            dateTime2 = dateTime2.AddDays(-1.0);
                                                            num++;
                                                            continue;
                                                        IL_28E:
                                                            arg_294_0 = false;
                                                            goto IL_294;
                                                        }
                                                    }
                                                    result = dateTime2;
                                                }
                                                else
                                                {
                                                    flag = (Operators.CompareString(allDateScaler_, "Today", false) == 0);
                                                    if (flag)
                                                    {
                                                        DateTime dateTime = new DateTime(endDate.Year, endDate.Month, endDate.Day);
                                                        result = dateTime;
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
                return result;
            }
        }

        private List<IDateDataPoint> GetDayExtrDataPoints(DateTime aStartDate, int numToAdd)
        {
            var list = new List<IDateDataPoint>();
            DateTime dateTime = aStartDate.Date;
            checked
            {
                if (this._isForex)
                {
                    while (list.Count < numToAdd)
                    {
                        do
                        {
                            dateTime = dateTime.Add(this._timeSpan);
                        }
                        while (dateTime.DayOfWeek == (DayOfWeek)6);
                        var allDateScaler_ = new AllDateScaler.DateDataPoint(dateTime);
                        if (this._dataSource == null || this._dataSource.Count == 0)
                        {
                            goto IL_9D;
                        }
                        if (DateTime.Compare(this._dataSource[this._dataSource.Count - 1].Date, dateTime) < 0)
                        {
                            goto IL_9D;
                        }
                        bool arg_9E_0 = false;
                    IL_9E:
                        var flag = arg_9E_0;
                        if (flag)
                        {
                            list.Add(allDateScaler_);
                        }
                        continue;
                    IL_9D:
                        arg_9E_0 = true;
                        goto IL_9E;
                    }
                }
                else
                {
                    while (list.Count < numToAdd)
                    {
                        //do
                        //{
                        //    dateTime = dateTime.Add(this.AllDateScaler_716);
                        //}
                        //while (Conversions.ToBoolean((Conversions.ToBoolean(dateTime.DayOfWeek == (DayOfWeek)6 || dateTime.DayOfWeek == 0) || Conversions.ToBoolean(MarketDates.IsWholeDayHoliday(dateTime, this.isForex))) ? true : false));

                        do
                        {
                            dateTime = dateTime.Add(this._timeSpan);
                        }
                        while (dateTime.DayOfWeek == (DayOfWeek)6 || dateTime.DayOfWeek == 0);

                        var allDateScaler_2 = new AllDateScaler.DateDataPoint(dateTime);
                        if (this._dataSource == null || this._dataSource.Count == 0)
                        {
                            goto IL_173;
                        }
                        if (DateTime.Compare(this._dataSource[this._dataSource.Count - 1].Date, dateTime) < 0)
                        {
                            goto IL_173;
                        }
                        bool arg_174_0 = false;
                    IL_174:
                        var flag = arg_174_0;
                        if (flag)
                        {
                            list.Add(allDateScaler_2);
                        }
                        continue;
                    IL_173:
                        arg_174_0 = true;
                        goto IL_174;
                    }
                }
                return list;
            }
        }

        /// <summary>
        /// Gets the extra data points.
        /// </summary>
        /// <returns>List{IDateDataPoint}.</returns>
        private List<IDateDataPoint> GetExtraDataPoints()
        {
            bool flag = this._futureSplitPercent > 0f && this._dataSource != null && this._dataSource.Count > 1;
            checked
            {
                List<IDateDataPoint> result;
                if (flag)
                {
                    DateTime aStartDate = this._dataSource[this._dataSource.Count - 2].Date.Add(this._timeSpan);
                    int numToAdd = (int)Math.Round((double)unchecked((float)this.NumBars * this._futureSplitPercent));
                    flag = (this._timeSpan.Days < 1);
                    if (flag)
                    {
                        result = this.GetlessThenDayExtraDataPoints(aStartDate, numToAdd);
                    }
                    else
                    {
                        flag = (this._timeSpan.Days == 255);
                        if (flag)
                        {
                            aStartDate = this._dataSource[this._dataSource.Count - 1].Date;
                            result = this.GetYearExtraDataPoints(aStartDate, numToAdd);
                        }
                        else
                        {
                            flag = (this._timeSpan.Days == 120);
                            if (flag)
                            {
                                aStartDate = this._dataSource[this._dataSource.Count - 1].Date;
                                result = this.GetQuarterDataExtraPoints(aStartDate, numToAdd);
                            }
                            else
                            {
                                flag = (this._timeSpan.Days == 30);
                                if (flag)
                                {
                                    aStartDate = this._dataSource[this._dataSource.Count - 1].Date;
                                    result = this.GetMonthExtraDataPoints(aStartDate, numToAdd);
                                }
                                else
                                {
                                    flag = (this._timeSpan.Days == 5);
                                    if (flag)
                                    {
                                        aStartDate = this._dataSource[this._dataSource.Count - 1].Date;
                                        result = this.GetWeekExtraDataPoints(aStartDate, numToAdd);
                                    }
                                    else
                                    {
                                        result = this.GetDayExtrDataPoints(aStartDate, numToAdd);
                                    }
                                }
                            }
                        }
                    }
                }
                else
                {
                    result = null;
                }
                return result;
            }
        }

        /// <summary>
        /// Gets the last contains.
        /// </summary>
        /// <param name="date">The date.</param>
        /// <returns>System.Int32.</returns>
        private int GetLastContainsValue(DateTime date)
        {
            if (_dictionary == null || !_dictionary.Any()) return 0;

            foreach (var keyPair in _dictionary)
            {
                if (keyPair.Key >= date) return keyPair.Value;
            }

            return 0;
        }

        private List<IDateDataPoint> GetlessThenDayExtraDataPoints(DateTime aStartDate, int numToAdd)
        {
            var list = new List<IDateDataPoint>();
            bool flag = this._isForex;
            checked
            {
                if (flag)
                {
                    DateTime aDate = aStartDate.AddSeconds((double)(-1 * aStartDate.Second));
                    while (list.Count < numToAdd)
                    {
                        aDate = aDate.Add(this._timeSpan);
                        flag = (aDate.DayOfWeek == (DayOfWeek)6);
                        if (!flag)
                        {
                            if (aDate.DayOfWeek != (DayOfWeek)5)
                            {
                                goto IL_B8;
                            }
                            TimeSpan arg_B1_0 = aDate.TimeOfDay;
                            TimeSpan timeSpan = new TimeSpan(17, 0, 0);
                            if (!(arg_B1_0 > timeSpan))
                            {
                                goto IL_B8;
                            }
                            bool arg_BC_0 = true;
                        IL_BC:
                            flag = arg_BC_0;
                            if (flag)
                            {
                                aDate = aDate.Date.AddDays(2.0).AddHours(17.0);
                                goto IL_13A;
                            }
                            if (aDate.DayOfWeek != 0)
                            {
                                goto IL_116;
                            }
                            TimeSpan arg_10F_0 = aDate.TimeOfDay;
                            timeSpan = new TimeSpan(17, 0, 0);
                            if (!(arg_10F_0 < timeSpan))
                            {
                                goto IL_116;
                            }
                            bool arg_11A_0 = true;
                        IL_11A:
                            flag = arg_11A_0;
                            if (flag)
                            {
                                aDate = aDate.Date.AddHours(17.0);
                                goto IL_13A;
                            }
                            goto IL_13A;
                        IL_116:
                            arg_11A_0 = false;
                            goto IL_11A;
                        IL_B8:
                            arg_BC_0 = false;
                            goto IL_BC;
                        }
                        aDate = aDate.Date.AddDays(1.0).AddHours(17.0);
                    IL_13A:
                        var allDateScaler_ = new AllDateScaler.DateDataPoint(aDate);
                        list.Add(allDateScaler_);
                    }
                }
                else
                {
                    DateTime aDate2 = aStartDate.AddSeconds((double)(-1 * aStartDate.Second));
                    TimeSpan timeSpan2 = new TimeSpan(16, 0, 0);
                    TimeSpan timeSpan3 = new TimeSpan(9, 30, 0);
                    TimeSpan timeSpan4 = new TimeSpan(16, 0, 0);
                    TimeSpan timeSpan5 = new TimeSpan(9, 30, 0);
                    //MarketDates.HolidayItem holidayItem = MarketDates.GetHoliday(aDate2, this.isForex);
                    //flag = (holidayItem != null && holidayItem.WholeDay);
                    //if (flag)
                    //{
                    //    holidayItem = null;
                    //}
                    while (list.Count < numToAdd)
                    {
                        aDate2 = aDate2.Add(this._timeSpan);
                        flag = true;// (holidayItem == null);
                        if (flag)
                        {
                            timeSpan4 = timeSpan2;
                            timeSpan5 = timeSpan3;
                        }
                        //else
                        //{
                        //    timeSpan4 = holidayItem.CloseTime;
                        //    timeSpan5 = holidayItem.OpenTime;
                        //}
                        while (true)
                        {
                            if (aDate2.TimeOfDay > timeSpan4 || aDate2.DayOfWeek == (DayOfWeek)6)
                            {
                                goto IL_2C4;
                            }
                            if (aDate2.DayOfWeek == 0)
                            {
                                goto IL_2C4;
                            }
                            bool arg_2C5_0 = false;
                        IL_2C5:
                            if (!arg_2C5_0)
                            {
                                break;
                            }
                            //if (!Conversions.ToBoolean((Conversions.ToBoolean(arg_2C5_0) || Conversions.ToBoolean(MarketDates.IsWholeDayHoliday(aDate2, this.isForex))) ? true : false))
                            //{
                            //    break;
                            //}
                            aDate2 = aDate2.Date.AddDays(1.0).Add(timeSpan3).Add(this._timeSpan);
                            //holidayItem = MarketDates.GetHoliday(aDate2, this.isForex);
                            //flag = (holidayItem != null && holidayItem.WholeDay);
                            //if (flag)
                            //{
                            //    holidayItem = null;
                            //}
                            //flag = (holidayItem == null);
                            if (flag)
                            {
                                timeSpan4 = timeSpan2;
                                timeSpan5 = timeSpan3;
                            }
                            //else
                            //{
                            //    timeSpan4 = holidayItem.CloseTime;
                            //    timeSpan5 = holidayItem.OpenTime;
                            //}
                            continue;
                        IL_2C4:
                            arg_2C5_0 = true;
                            goto IL_2C5;
                        }
                        flag = (aDate2.TimeOfDay >= timeSpan5);
                        if (flag)
                        {
                            AllDateScaler.DateDataPoint allDateScaler_2 = new AllDateScaler.DateDataPoint(aDate2);
                            list.Add(allDateScaler_2);
                        }
                    }
                }
                return list;
            }
        }

        private List<IDateDataPoint> GetMonthExtraDataPoints(DateTime aStartDate, int NumToAdd)
        {
            var list = new List<IDateDataPoint>();
            DateTime aDate = aStartDate.Date;
            checked
            {
                if (this._isForex)
                {
                    while (list.Count < NumToAdd)
                    {
                        aDate = new DateTime(aDate.Year, aDate.Month, 1);
                        aDate = aDate.AddMonths(1);
                        aDate = aDate.AddDays((double)(DateTime.DaysInMonth(aDate.Year, aDate.Month) - 1));
                        while (aDate.DayOfWeek == (DayOfWeek)6)
                        {
                            aDate = aDate.AddDays(-1.0);
                        }
                        AllDateScaler.DateDataPoint allDateScaler_2 = new AllDateScaler.DateDataPoint(aDate);
                        list.Add(allDateScaler_2);
                    }
                }
                else
                {
                    while (list.Count < NumToAdd)
                    {
                        aDate = new DateTime(aDate.Year, aDate.Month, 1);
                        aDate = aDate.AddMonths(1);
                        aDate = aDate.AddDays((double)(DateTime.DaysInMonth(aDate.Year, aDate.Month) - 1));
                        //while (Conversions.ToBoolean((Conversions.ToBoolean(aDate.DayOfWeek == (DayOfWeek)6 || aDate.DayOfWeek == 0) || Conversions.ToBoolean(MarketDates.IsWholeDayHoliday(aDate, this.isForex))) ? true : false))
                        //{
                        //    aDate = aDate.AddDays(-1.0);
                        //}

                        while (aDate.DayOfWeek == (DayOfWeek)6 || aDate.DayOfWeek == 0)
                        {
                            aDate = aDate.AddDays(-1.0);
                        }

                        AllDateScaler.DateDataPoint allDateScaler_3 = new AllDateScaler.DateDataPoint(aDate);
                        list.Add(allDateScaler_3);
                    }
                }
                return list;
            }
        }

        private List<IDateDataPoint> GetQuarterDataExtraPoints(DateTime aStartDate, int NumToAdd)
        {
            var list = new List<IDateDataPoint>();
            DateTime aDate = aStartDate.Date;
            while (aDate.Month % 3 != 0)
            {
                aDate = aDate.AddMonths(1);
            }
            bool allDateScaler_ = this._isForex;
            if (allDateScaler_)
            {
                while (list.Count < NumToAdd)
                {
                    aDate = aDate.AddMonths(3);
                    aDate = new DateTime(aDate.Year, aDate.Month, DateTime.DaysInMonth(aDate.Year, aDate.Month));
                    while (aDate.DayOfWeek == (DayOfWeek)6)
                    {
                        aDate = aDate.AddDays(-1.0);
                    }
                    AllDateScaler.DateDataPoint allDateScaler_2 = new AllDateScaler.DateDataPoint(aDate);
                    list.Add(allDateScaler_2);
                }
            }
            else
            {
                while (list.Count < NumToAdd)
                {
                    aDate = aDate.AddMonths(3);
                    aDate = new DateTime(aDate.Year, aDate.Month, DateTime.DaysInMonth(aDate.Year, aDate.Month));
                    //while (Conversions.ToBoolean((Conversions.ToBoolean(aDate.DayOfWeek == (DayOfWeek)6 || aDate.DayOfWeek == 0) || Conversions.ToBoolean(MarketDates.IsWholeDayHoliday(aDate, this.isForex))) ? true : false))
                    //{
                    //    aDate = aDate.AddDays(-1.0);
                    //}

                    while (aDate.DayOfWeek == (DayOfWeek)6 || aDate.DayOfWeek == 0)
                    {
                        aDate = aDate.AddDays(-1.0);
                    }
                    AllDateScaler.DateDataPoint allDateScaler_3 = new AllDateScaler.DateDataPoint(aDate);
                    list.Add(allDateScaler_3);
                }
            }
            return list;
        }

        private List<IDateDataPoint> GetWeekExtraDataPoints(DateTime aStartDate, int numToAdd)
        {
            var list = new List<IDateDataPoint>();
            DateTime aDate = aStartDate.Date;
            while (aDate.DayOfWeek != (DayOfWeek)5)
            {
                aDate = aDate.AddDays(1.0);
            }

            if (_isForex)
            {
                while (list.Count < numToAdd)
                {
                    aDate = aDate.AddDays(7.0);
                    AllDateScaler.DateDataPoint allDateScaler_2 = new AllDateScaler.DateDataPoint(aDate);
                    list.Add(allDateScaler_2);
                    while (aDate.DayOfWeek != (DayOfWeek)5)
                    {
                        aDate = aDate.AddDays(1.0);
                    }
                }
            }
            else
            {
                while (list.Count < numToAdd)
                {
                    aDate = aDate.AddDays(7.0);
                    //while (Conversions.ToBoolean(MarketDates.IsWholeDayHoliday(aDate, this.isForex)))
                    //{
                    //    aDate = aDate.AddDays(-1.0);
                    //}
                    AllDateScaler.DateDataPoint allDateScaler_3 = new AllDateScaler.DateDataPoint(aDate);
                    list.Add(allDateScaler_3);
                    while (aDate.DayOfWeek != (DayOfWeek)5)
                    {
                        aDate = aDate.AddDays(1.0);
                    }
                }
            }
            return list;
        }

        private List<IDateDataPoint> GetYearExtraDataPoints(DateTime aStartDate, int numToAdd)
        {
            var list = new List<IDateDataPoint>();
            DateTime aDate = aStartDate.Date;
            bool allDateScaler_ = this._isForex;
            checked
            {
                if (allDateScaler_)
                {
                    while (list.Count < numToAdd)
                    {
                        aDate = new DateTime(aDate.Year + 1, 12, DateTime.DaysInMonth(aDate.Year + 1, 12));
                        while (aDate.DayOfWeek == (DayOfWeek)6)
                        {
                            aDate = aDate.AddDays(-1.0);
                        }
                        AllDateScaler.DateDataPoint allDateScaler_2 = new AllDateScaler.DateDataPoint(aDate);
                        list.Add(allDateScaler_2);
                    }
                }
                else
                {
                    while (list.Count < numToAdd)
                    {
                        aDate = new DateTime(aDate.Year + 1, 12, DateTime.DaysInMonth(aDate.Year + 1, 12));
                        //while (Conversions.ToBoolean((Conversions.ToBoolean(aDate.DayOfWeek == (DayOfWeek)6 || aDate.DayOfWeek == 0) || Conversions.ToBoolean(MarketDates.IsWholeDayHoliday(aDate, this.isForex))) ? true : false))
                        //{
                        //    aDate = aDate.AddDays(-1.0);
                        //}

                        while (aDate.DayOfWeek == (DayOfWeek)6 || aDate.DayOfWeek == 0)
                        {
                            aDate = aDate.AddDays(-1.0);
                        }
                        AllDateScaler.DateDataPoint allDateScaler_3 = new AllDateScaler.DateDataPoint(aDate);
                        list.Add(allDateScaler_3);
                    }
                }
                return list;
            }
        }

        private void OnScalerPropertyChanged()
        {
            var list = new List<IDateDataPoint>();
            var flag = (this._dataSource != null && this._dataSource.Any());
            if (flag)
            {
                list.AddRange(_dataSource.Cast<IDateDataPoint>());
            }

            this._extraDataPoints = this.GetExtraDataPoints();
            flag = (this._extraDataPoints != null);
            if (flag)
            {
                list.AddRange(_extraDataPoints);
            }

            flag = (list.Count > 0 && list.Count < 3);
            checked
            {
                if (flag)
                {
                    try
                    {
                        int i = 3 - list.Count;
                        DateTime aDate = list[0].Date;
                        while (i > 0)
                        {
                            i--;

                            //使用Add代替Insert，否则DataVisible会判断出错
                            //aDate = aDate.Subtract(this._timeSpan);
                            //list.Insert(0, new AllDateScaler.DateDataPoint(aDate));

                            aDate = aDate.Add(this._timeSpan);
                            list.Add(new AllDateScaler.DateDataPoint(aDate));

                        }
                    }
                    catch (Exception ex)
                    {
                        throw ex;
                    }
                }
                this._fullDataPoints = list;
                var dictionary = new Dictionary<DateTime, int>();
                this._hasNonEODDates = false;
                flag = (this._fullDataPoints != null);
                if (flag)
                {
                    var timeSpan = new TimeSpan(16, 0, 0);
                    int num = this._fullDataPoints.Count - 1;
                    int num2 = 0;
                    while (true)
                    {
                        int num3 = num;
                        if (num2 > num3)
                        {
                            break;
                        }
                        DateTime dateTime = this._fullDataPoints[num2].Date;
                        flag = (!this._hasNonEODDates && dateTime.TimeOfDay != timeSpan);
                        if (flag)
                        {
                            this._hasNonEODDates = true;
                        }
                        dictionary[dateTime] = num2;
                        num2++;
                    }
                    flag = (DateTime.Compare(this._endDateTime, DateTime.MaxValue) == 0);
                    if (flag)
                    {
                        this._endIndex = this._fullDataPoints.Count - 1;
                    }
                    else
                    {
                        int num4 = this._fullDataPoints.Count - 1;
                        while (true)
                        {
                            int num3 = 0;
                            if (num4 < num3)
                            {
                                goto IL_272;
                            }
                            flag = (DateTime.Compare(this._fullDataPoints[num4].Date, this._endDateTime) <= 0);
                            if (flag)
                            {
                                break;
                            }
                            num4 += -1;
                        }
                        this._endIndex = num4;
                    IL_272:
                        flag = (this._endIndex < this._numBars);
                        if (flag)
                        {
                            this._endIndex = this._numBars;
                        }
                        flag = (this._endIndex > this._fullDataPoints.Count - 1);
                        if (flag)
                        {
                            this._endIndex = this._fullDataPoints.Count - 1;
                        }
                    }
                    flag = (this._dataSource != null && this._dataSource.Count > 0
                        && !string.IsNullOrWhiteSpace(this.DesiredChartLength) &&
                        DateTime.Compare(this._endDateTime, DateTime.MaxValue) == 0);
                    if (flag)
                    {
                        DateTime dateTime2 = this.GetCurrentFirstDate(this._dataSource[this._dataSource.Count - 1].Date);
                        int num5 = 0;
                        int num6 = this.EndIndex;
                        while (true)
                        {
                            if (num6 < 0)
                            {
                                break;
                            }
                            num5++;
                            flag = (DateTime.Compare(this._fullDataPoints[num6].Date, dateTime2) < 0);
                            if (flag)
                            {
                                break;
                            }
                            num6 += -1;
                        }
                        flag = (num5 < _chart.MinRecordCountInternal);
                        if (flag)
                        {
                            num5 = _chart.MinRecordCountInternal;
                        }
                        this._numBars = num5;
                    }
                }
                else
                {
                    this._endIndex = 0;
                }

                this._dictionary = dictionary;
            }
        }

        #endregion Private Methods

        #endregion Methods

        #region Nested Types

        private class DateDataPoint : IDateDataPoint
        {
            #region Constructors

            public DateDataPoint(DateTime aDate)
            {
                this.Date = aDate;
            }

            #endregion Constructors

            #region Properties

            #region Public Properties

            public DateTime Date
            {
                get;
                set;
            }

            #endregion Public Properties

            #endregion Properties
        }

        #endregion Nested Types
    }
}