internal bool ShouldSimplifiedRenderingModeBeEnabled()
{
int num = this.Series.SimplifiedRenderingThreshold ?? this.DefaultSimplifiedRenderingThreshold;
if (num == 0)
{
return(true);
}
if (this.Series.DataPoints.Count >= num)
{
return(EnumerableFunctions.FastCount((IEnumerable)this.VisibleDataPoints) >= num);
}
return(false);
}
internal override void UpdateDataPointVisibility()
{
int index1 = 0;
bool flag1 = true;
bool flag2 = true;
DataPointViewState[] dataPointViewStateArray = new DataPointViewState[this.Series.DataPoints.Count];
foreach (DataPoint dataPoint1 in (Collection <DataPoint>) this.Series.DataPoints)
{
DataPointViewState dataPointViewState = DataPointViewState.Hidden;
dataPoint1.IsVisible = false;
XYDataPoint xyDataPoint = dataPoint1 as XYDataPoint;
if (xyDataPoint != null && this.ChartArea != null && (this.ChartArea.IsTemplateApplied && ValueHelper.CanGraph(xyDataPoint.XValueInScaleUnits)) && ValueHelper.CanGraph(xyDataPoint.YValueInScaleUnits))
{
if (DoubleHelper.GreaterOrEqualWithPrecision(xyDataPoint.XValueInScaleUnits, 0.0) && DoubleHelper.LessOrEqualWithPrecision(xyDataPoint.XValueInScaleUnits, 1.0) && (DoubleHelper.GreaterOrEqualWithPrecision(xyDataPoint.YValueInScaleUnits, 0.0) && DoubleHelper.LessOrEqualWithPrecision(xyDataPoint.YValueInScaleUnits, 1.0)))
{
if (this.Series.Visibility == Visibility.Visible)
{
flag1 = false;
dataPoint1.IsVisible = true;
if (!dataPoint1.IsNewlyAdded)
{
flag2 = false;
}
dataPointViewState = dataPoint1.IsNewlyAdded ? DataPointViewState.Showing : DataPointViewState.Normal;
if (index1 > 0)
{
DataPoint dataPoint2 = this.Series.DataPoints[index1 - 1];
if (dataPointViewStateArray[index1 - 1] == DataPointViewState.Hidden || dataPointViewStateArray[index1 - 1] == DataPointViewState.Hiding)
{
dataPoint2.IsVisible = true;
dataPointViewStateArray[index1 - 1] = dataPointViewState;
this.ChartArea.UpdateSession.Update((IUpdatable)dataPoint2);
}
}
if (index1 < this.Series.DataPoints.Count - 1)
{
DataPoint dataPoint2 = this.Series.DataPoints[index1 + 1];
if (!this._dataPointsToForceVisibility.Contains(dataPoint2))
{
this._dataPointsToForceVisibility.Add(dataPoint2);
}
}
this.ChartArea.UpdateSession.Update((IUpdatable)dataPoint1);
}
}
else if (this._dataPointsToForceVisibility.Contains(dataPoint1))
{
dataPoint1.IsVisible = true;
dataPointViewState = dataPoint1.IsNewlyAdded ? DataPointViewState.Showing : DataPointViewState.Normal;
}
}
if (this._dataPointsToForceVisibility.Contains(dataPoint1))
{
this._dataPointsToForceVisibility.Remove(dataPoint1);
}
dataPointViewStateArray[index1] = dataPointViewState;
++index1;
}
this.IsSimplifiedRenderingModeCheckRequired = true;
this.CheckSimplifiedRenderingMode();
if (!flag2)
{
for (int index2 = 0; index2 < EnumerableFunctions.FastCount((IEnumerable)dataPointViewStateArray); ++index2)
{
if (dataPointViewStateArray[index2] == DataPointViewState.Showing)
{
dataPointViewStateArray[index2] = DataPointViewState.Normal;
}
}
}
if (flag1 && this.Series.DataPoints.Count > 0 && (this.ChartArea != null && this.ChartArea.IsTemplateApplied) && (DoubleHelper.LessWithPrecision(((XYDataPoint)this.Series.DataPoints[0]).XValueInScaleUnits, 0.0) && DoubleHelper.GreaterWithPrecision(((XYDataPoint)this.Series.DataPoints[this.Series.DataPoints.Count - 1]).XValueInScaleUnits, 1.0)))
{
int index2;
for (index2 = 1; index2 < this.Series.DataPoints.Count - 2; ++index2)
{
if (DoubleHelper.GreaterOrEqualWithPrecision((this.Series.DataPoints[index2] as XYDataPoint).XValueInScaleUnits, 0.0))
{
--index2;
break;
}
}
XYDataPoint xyDataPoint1 = this.Series.DataPoints[index2] as XYDataPoint;
xyDataPoint1.IsVisible = true;
dataPointViewStateArray[index2] = xyDataPoint1.IsNewlyAdded ? DataPointViewState.Showing : DataPointViewState.Normal;
this.ChartArea.UpdateSession.Update((IUpdatable)xyDataPoint1);
XYDataPoint xyDataPoint2 = this.Series.DataPoints[index2 + 1] as XYDataPoint;
xyDataPoint2.IsVisible = true;
dataPointViewStateArray[index2 + 1] = xyDataPoint2.IsNewlyAdded ? DataPointViewState.Showing : DataPointViewState.Normal;
this.ChartArea.UpdateSession.Update((IUpdatable)xyDataPoint2);
}
int index3 = 0;
foreach (DataPoint dataPoint in (Collection <DataPoint>) this.Series.DataPoints)
{
this.SetDataPointViewState(dataPoint, dataPointViewStateArray[index3]);
dataPoint.IsNewlyAdded = false;
++index3;
}
}