private SolidColorBrush GetBrush(HierarchicalData data)
{
if (Highlighing != null && Highlighing.IsHighlighted(data))
{
return(DefaultDrawingPrimitives.HighlightBrush);
}
SolidColorBrush brush;
if (data.ColorKey != null)
{
brush = _colorScheme.GetMediaBrush(data.ColorKey);
}
else
{
// For non leaf nodes the weight is 0. We only can merge area metrics.
// See HiearchyBuilder.InsertLeaf.
var color = DefaultDrawingPrimitives.WhiteToRedGradient.GradientStops.GetRelativeColor(data.NormalizedWeightMetric);
brush = new SolidColorBrush(color);
brush.Freeze();
}
return(brush);
}
