/// <summary>
/// Used for creating UIElement for rendering this segment. This method is not
/// intended to be called explicitly outside the Chart but it can be overriden by
/// any derived class.
/// </summary>
/// <param name="size">Size of the panel</param>
/// <returns>
/// retuns UIElement
/// </returns>
public override UIElement CreateVisual(Size size)
{
if (adormentContainer == null)
{
adormentContainer = new ChartAdornmentContainer(this);
}
return(adormentContainer);
}
/// <summary>
/// Method is used to highlight the adornment.
/// </summary>
/// <param name="adornmentSelectedIndex">The Adornment Index</param>
internal void UpdateAdornmentSelection(List <int> selectedAdornmentIndexes, bool isDataPointSelection)
{
Brush selectionBrush = null;
if (Series.ActualArea.GetEnableSeriesSelection() && !isDataPointSelection)
{
selectionBrush = Series.ActualArea.GetSeriesSelectionBrush(Series);
}
else if (Series.ActualArea.GetEnableSegmentSelection())
{
selectionBrush = (Series as ISegmentSelectable).SegmentSelectionBrush;
}
if (selectionBrush != null)
{
if (selectedAdornmentIndexes != null && selectedAdornmentIndexes.Count > 0)
{
foreach (var index in selectedAdornmentIndexes)
{
// Set selection brush to adornment label.
if (Series.adornmentInfo.ShowLabel && Series.adornmentInfo.LabelTemplate == null &&
(Series.adornmentInfo.UseSeriesPalette || Series.adornmentInfo.Background != null || Series.adornmentInfo.BorderBrush != null))
{
Border border = null;
if (Series.adornmentInfo.LabelPresenters.Count > 0 && VisualTreeHelper.GetChildrenCount(Series.adornmentInfo.LabelPresenters[index]) > 0)
{
ContentPresenter contentPresenter = VisualTreeHelper.GetChild(Series.adornmentInfo.LabelPresenters[index], 0) as ContentPresenter;
if (VisualTreeHelper.GetChildrenCount(contentPresenter) > 0)
{
border = VisualTreeHelper.GetChild(contentPresenter, 0) as Border;
}
}
if (border != null)
{
if (border.Background != null)
{
border.Background = selectionBrush;
}
if (border.BorderBrush != null)
{
border.BorderBrush = selectionBrush;
}
}
}
// Set selection brush to adornment symbol
if (Series.adornmentInfo.ShowMarker && Series.adornmentInfo.adormentContainers.Count > 0)
{
ChartAdornmentContainer symbol = Series.adornmentInfo.adormentContainers[index];
if (symbol.PredefinedSymbol != null)
{
symbol.PredefinedSymbol.Background = selectionBrush;
symbol.PredefinedSymbol.BorderBrush = selectionBrush;
}
}
// Set selection brush to adornment connector line.
if (Series.adornmentInfo.ConnectorLines.Count > 0 && Series.adornmentInfo.ShowConnectorLine)
{
Path line = Series.adornmentInfo.ConnectorLines[index];
line.Stroke = selectionBrush;
}
}
}
}
}
