Atmo.UI.DevEx.MainForm.HistoricalDataUpdate C# (CSharp) Метод

        private void HistoricalDataUpdate(object junk)
        {
            if(!Visible) {
                lock (_historicalUpdateThreadMutex) {
                    Thread.Sleep(100);
                }
                RequestHistoricalUpdate();
                return;
            }

            lock (_historicalUpdateThreadMutex) {
                System.Diagnostics.Debug.WriteLine("Begin Historical Data");

                var now = DateTime.Now;
                var histTimeRangeSelector = historicalTimeSelectHeader.TimeRange;
                var histDateChooser = historicalTimeSelectHeader.DateEdit;
                var histNowChk = historicalTimeSelectHeader.CheckEdit;
                var histTimeChooser = historicalTimeSelectHeader.TimeEdit;

                var histTimeSpan = histTimeRangeSelector.SelectedSpan;
                var histStartDate = histNowChk.Checked
                    ? now.Subtract(histTimeSpan)
                    : histDateChooser.DateTime.Date.Add(histTimeChooser.Time.TimeOfDay);

                var cumTimeInfo = HistoricalGraphBreakdown.GetCumulativeWindows(
                    histStartDate.Add(histTimeSpan),
                    histTimeSpan,
                    !histNowChk.Checked
                );

                var historicalSelected =
                    _dbStore.GetAllSensorInfos()
                    .Where(si => _historicSensorViewPanelController.IsSensorSelected(si))
                    .ToList();

                var sensorReadings = historicalSelected.Select(
                    sensor =>
                    _dbStore.GetReadingSummaries(
                        sensor.Name, cumTimeInfo.MaxStamp,
                        cumTimeInfo.MinStamp - cumTimeInfo.MaxStamp,
                        UnitUtility.ChooseBestSummaryUnit(histTimeSpan)
                    )
                );

                var historicalSummaries = StatsUtil
                    .JoinReadingSummaryEnumerable(sensorReadings)
                    .ToList();

                if (!IsDisposed) {
                    BeginInvoke(new Action(() => {
                        windResourceGraph.TemperatureUnit = TemperatureUnit;
                        windResourceGraph.PressureUnit = PressureUnit;
                        windResourceGraph.SpeedUnit = SpeedUnit;

                        windResourceGraph.SetDataSource(historicalSummaries);

                        historicalGraphBreakdown.TemperatureUnit = TemperatureUnit;
                        historicalGraphBreakdown.PressureUnit = PressureUnit;
                        historicalGraphBreakdown.SpeedUnit = SpeedUnit;
                        historicalGraphBreakdown.StepBack = !histNowChk.Checked;
                        historicalGraphBreakdown.DrillStartDate = histStartDate;
                        historicalGraphBreakdown.CumulativeTimeSpan = histTimeSpan;

                        historicalGraphBreakdown.SetDataSource(historicalSummaries);
                    }));
                }

            }
        }