internal override void AdjustDataPointLabelVisibilityRating(LabelVisibilityManager.DataPointRange range, Dictionary <XYDataPoint, double> dataPointRanks)
{
BubbleDataPoint bubbleDataPoint1 = (BubbleDataPoint)null;
double num = double.MinValue;
foreach (XYDataPoint xyDataPoint in range.DataPoints)
{
BubbleDataPoint bubbleDataPoint2 = xyDataPoint as BubbleDataPoint;
if (bubbleDataPoint2 != null && bubbleDataPoint2.SizeValueInScaleUnitsWithoutAnimation > num)
{
num = bubbleDataPoint2.SizeValueInScaleUnitsWithoutAnimation;
bubbleDataPoint1 = bubbleDataPoint2;
}
}
if (bubbleDataPoint1 == null)
{
return;
}
if (dataPointRanks.ContainsKey((XYDataPoint)bubbleDataPoint1))
{
Dictionary <XYDataPoint, double> dictionary;
XYDataPoint index;
(dictionary = dataPointRanks)[index = (XYDataPoint)bubbleDataPoint1] = dictionary[index] + 150.0;
}
else
{
dataPointRanks.Add((XYDataPoint)bubbleDataPoint1, 150.0);
}
}
private Dictionary <XYDataPoint, double> GetDefaultRanking(LabelVisibilityManager.DataPointRange range, LabelVisibilityManager.DataPointRange prevRange, ref bool useMaximum)
{
Dictionary <XYDataPoint, double> dictionary = new Dictionary <XYDataPoint, double>();
if (!range.ProjectedYRange.HasData)
{
double num1 = 0.05;
if (prevRange != null && prevRange.DataPointProjectedYRange.HasData && range.DataPointProjectedYRange.HasData)
{
if (range.DataPointProjectedYRange.Maximum - prevRange.DataPointProjectedYRange.Maximum > num1 && range.DataPointProjectedYRange.Minimum - prevRange.DataPointProjectedYRange.Minimum > num1)
{
useMaximum = true;
}
else if (prevRange.DataPointProjectedYRange.Maximum - range.DataPointProjectedYRange.Maximum > num1 && prevRange.DataPointProjectedYRange.Minimum - range.DataPointProjectedYRange.Minimum > num1)
{
useMaximum = false;
}
else if (range.DataPointProjectedYRange.Maximum - prevRange.DataPointProjectedYRange.Maximum > num1 && prevRange.DataPointProjectedYRange.Minimum - range.DataPointProjectedYRange.Minimum > num1)
{
double num2 = Math.Abs(range.DataPointProjectedYRange.Maximum - prevRange.DataPointProjectedYRange.Maximum);
double num3 = Math.Abs(range.DataPointProjectedYRange.Minimum - prevRange.DataPointProjectedYRange.Minimum);
useMaximum = num2 > num3;
}
else
{
useMaximum = !useMaximum;
}
}
}
XYDataPoint key = (XYDataPoint)null;
double d = double.NaN;
foreach (XYDataPoint xyDataPoint in range.DataPoints)
{
if (double.IsNaN(d))
{
key = xyDataPoint;
d = xyDataPoint.YValueInScaleUnitsWithoutAnimation;
}
else if (useMaximum && d < xyDataPoint.YValueInScaleUnitsWithoutAnimation)
{
key = xyDataPoint;
d = xyDataPoint.YValueInScaleUnitsWithoutAnimation;
}
else if (!useMaximum && d >= xyDataPoint.YValueInScaleUnitsWithoutAnimation)
{
key = xyDataPoint;
d = xyDataPoint.YValueInScaleUnitsWithoutAnimation;
}
}
if (key != null)
{
dictionary.Add(key, 50.0);
}
if (range.ProjectedYRange.HasData)
{
useMaximum = !useMaximum;
}
return(dictionary);
}
internal override void AdjustDataPointLabelVisibilityRating(LabelVisibilityManager.DataPointRange range, Dictionary <XYDataPoint, double> dataPointRanks)
{
XYDataPoint key = (XYDataPoint)null;
if (range.DataPoints.Count > 0)
{
key = range.DataPoints[range.DataPoints.Count / 2] as XYDataPoint;
}
if (key == null)
{
return;
}
if (dataPointRanks.ContainsKey(key))
{
Dictionary <XYDataPoint, double> dictionary;
XYDataPoint index;
(dictionary = dataPointRanks)[index = key] = dictionary[index] + 150.0;
}
else
{
dataPointRanks.Add(key, 150.0);
}
}
internal override void AdjustDataPointLabelVisibilityRating(LabelVisibilityManager.DataPointRange range, Dictionary <XYDataPoint, double> dataPointRanks)
{
if (range.DataPoints.Count <= 0)
{
return;
}
XYDataPoint xyDataPoint = range.DataPoints[0] as XYDataPoint;
foreach (XYDataPoint key in range.DataPoints)
{
if (ValueHelper.Compare(key.XValue as IComparable, xyDataPoint.XValue as IComparable) == 0)
{
if (dataPointRanks.ContainsKey(key))
{
dataPointRanks[key] = 100.0;
}
else
{
dataPointRanks.Add(key, 100.0);
}
}
}
}
internal override void AdjustDataPointLabelVisibilityRating(LabelVisibilityManager.DataPointRange range, Dictionary <XYDataPoint, double> dataPointRanks)
{
}
public virtual void UpdateDataPointLabelVisibility()
{
DateTime now = DateTime.Now;
if (this._xScalePositions == null)
{
this.RecalculateXIntervals();
}
if (this._yScalePositions == null)
{
this.RecalculateYIntervals();
}
if (this._chartArea == null || this._chartArea.Series.Count <= 0)
{
return;
}
if (this._dataPointRanges.Count == 0)
{
this.CreateDataPointRanges();
}
List <XYDataPoint> list = new List <XYDataPoint>();
Dictionary <Type, SeriesPresenter> dictionary = new Dictionary <Type, SeriesPresenter>();
foreach (Series series in this._chartArea.Series)
{
if (!dictionary.ContainsKey(series.SeriesPresenter.GetType()))
{
dictionary.Add(series.SeriesPresenter.GetType(), series.SeriesPresenter);
}
if (series.Visibility == Visibility.Visible && series.LabelVisibility == Visibility.Visible)
{
foreach (XYDataPoint xyDataPoint in ((XYSeriesPresenter)series.SeriesPresenter).Series.DataPointsByXValue)
{
if (xyDataPoint.ActualLabelContent != null && xyDataPoint.XValueInScaleUnitsWithoutAnimation >= 0.0 && (xyDataPoint.XValueInScaleUnitsWithoutAnimation <= 1.0 && xyDataPoint.Visibility == Visibility.Visible))
{
if (this.IsOnlyXAxisUsed)
{
list.Add(xyDataPoint);
}
else if (xyDataPoint.YValueInScaleUnitsWithoutAnimation >= 0.0 && xyDataPoint.YValueInScaleUnitsWithoutAnimation <= 1.0)
{
list.Add(xyDataPoint);
}
}
}
}
}
if (list.Count < 30)
{
foreach (DataPoint dataPoint in list)
{
dataPoint.ActualLabelVisibility = Visibility.Visible;
}
}
else
{
foreach (LabelVisibilityManager.DataPointRange dataPointRange in this._dataPointRanges)
{
dataPointRange.DataPoints.Clear();
dataPointRange.DataPointProjectedYRange = Range <double> .Empty;
for (int index = 0; index < list.Count; ++index)
{
XYDataPoint xyDataPoint = list[index];
if (xyDataPoint.XValueInScaleUnitsWithoutAnimation >= dataPointRange.ProjectedXRange.Minimum && xyDataPoint.XValueInScaleUnitsWithoutAnimation < dataPointRange.ProjectedXRange.Maximum && (!dataPointRange.ProjectedYRange.HasData || xyDataPoint.YValueInScaleUnitsWithoutAnimation >= dataPointRange.ProjectedYRange.Minimum && xyDataPoint.YValueInScaleUnitsWithoutAnimation < dataPointRange.ProjectedYRange.Maximum))
{
dataPointRange.DataPoints.Add((DataPoint)xyDataPoint);
dataPointRange.DataPointProjectedYRange = dataPointRange.DataPointProjectedYRange.Add(xyDataPoint.YValueInScaleUnitsWithoutAnimation);
list.RemoveAt(index);
--index;
}
}
}
foreach (DataPoint dataPoint in list)
{
dataPoint.ActualLabelVisibility = Visibility.Collapsed;
}
bool useMaximum = true;
LabelVisibilityManager.DataPointRange prevRange = (LabelVisibilityManager.DataPointRange)null;
foreach (LabelVisibilityManager.DataPointRange range in this._dataPointRanges)
{
Dictionary <XYDataPoint, double> defaultRanking = this.GetDefaultRanking(range, prevRange, ref useMaximum);
prevRange = range;
foreach (SeriesPresenter seriesPresenter in dictionary.Values)
{
seriesPresenter.LabelPresenter.AdjustDataPointLabelVisibilityRating(range, defaultRanking);
}
double num1 = -1.0;
foreach (double num2 in defaultRanking.Values)
{
if (num2 > num1)
{
num1 = num2;
}
}
foreach (XYDataPoint key in range.DataPoints)
{
double num2;
if (defaultRanking.TryGetValue(key, out num2) && num2 == num1)
{
key.ActualLabelVisibility = Visibility.Visible;
}
else
{
key.ActualLabelVisibility = Visibility.Collapsed;
}
}
}
}
}