/// <summary>
/// Adds a series to the plot area and injects chart services.
/// </summary>
/// <param name="series">The series to add to the plot area.</param>
private void AddSeriesToPlotArea(Series series)
{
series.SeriesHost = this;
AggregatedObservableCollection<UIElement> chartLegendItems = this.LegendItems as AggregatedObservableCollection<UIElement>;
int indexOfSeries = this.Series.IndexOf(series);
chartLegendItems.ChildCollections.Insert(indexOfSeries, series.LegendItems);
ISeriesHost host = series as ISeriesHost;
if (host != null)
{
host.GlobalSeriesIndexesInvalidated += OnChildSeriesGlobalSeriesIndexesInvalidated;
}
}
/// <summary>
/// Signals to the Chart that a Series no longer needs to use the axis
/// within this series host.
/// </summary>
/// <param name="series">The Series object that no longer needs to use
/// the axis.</param>
/// <param name="axis">The axis that the Series no longer needs to use.
/// </param>
void ISeriesHost.UnregisterWithAxis(Series series, IAxis axis)
{
if (series == null)
{
throw new ArgumentNullException("series");
}
if (axis == null)
{
throw new ArgumentNullException("axis");
}
if (!ActualAxes.Contains(axis))
{
throw new InvalidOperationException(Properties.Resources.Chart_UnregisterWithSeries_OneAxisCannotBeUsedByMultipleCharts);
}
axis.Unregister(series);
// If axis is no longer used and is not in external axes collection
if (!axis.IsUsed && !Axes.Contains(axis))
{
InternalActualAxes.Remove(axis);
}
}
/// <summary>
/// Removes a series from the plot area.
/// </summary>
/// <param name="series">The series to remove from the plot area.
/// </param>
private void RemoveSeriesFromPlotArea(Series series)
{
AggregatedObservableCollection<UIElement> legendItemsList = LegendItems as AggregatedObservableCollection<UIElement>;
legendItemsList.ChildCollections.Remove(series.LegendItems);
ISeriesHost host = series as ISeriesHost;
if (host != null)
{
host.GlobalSeriesIndexesInvalidated -= OnChildSeriesGlobalSeriesIndexesInvalidated;
}
series.SeriesHost = null;
}
/// <summary>
/// Signals to the ISeriesHost that a series would like to use an axis.
/// </summary>
/// <param name="series">The series that would like to use the axis.
/// </param>
/// <param name="axis">The axis the series would like to use.</param>
void ISeriesHost.RegisterWithAxis(Series series, IAxis axis)
{
if (series == null)
{
throw new ArgumentNullException("series");
}
if (axis == null)
{
throw new ArgumentNullException("axis");
}
axis.Register(series);
if (!InternalActualAxes.Contains(axis))
{
InternalActualAxes.Add(axis);
}
}
public static IList<DataPoint> GetDataPointsForSeries(Series series)
{
return series.GetVisualChildren().OfType<DataPoint>().Where(dataPoint => dataPoint.Parent.GetType() == typeof(Canvas)).ToList();
}
