public override void OnHoverLeave(ChartPoint point)
{
if (point.Fill != null)
{
Slice.Fill = (Brush)point.Fill;
}
else
{
Slice.Fill = ((Series)point.SeriesView).Fill;
}
Slice.BeginDoubleAnimation(nameof(Slice.PushOut), OriginalPushOut,
point.SeriesView.Model.Chart.View.AnimationsSpeed);
}
public override void OnHover(ChartPoint point)
{
Slice.Fill = Slice.Fill.Clone();
if (Slice?.Fill != null)
{
Slice.Fill.Opacity -= .15;
}
if (Slice != null)
{
var pieChart = (PieChart)point.SeriesView.Model.Chart.View;
Slice.BeginDoubleAnimation(nameof(PieSlice.PushOut), Slice.PushOut,
OriginalPushOut + pieChart.HoverPushOut,
point.SeriesView.Model.Chart.View.AnimationsSpeed);
}
}
public override void DrawOrMove(ChartPoint previousDrawn, ChartPoint current, int index, ChartCore chart)
{
if (IsNew)
{
Slice.Width = chart.DrawMargin.Width;
Slice.Height = chart.DrawMargin.Height;
Slice.WedgeAngle = 0;
Slice.RotationAngle = 0;
}
if (DataLabel != null && double.IsNaN(Canvas.GetLeft(DataLabel)))
{
Canvas.SetTop(DataLabel, 0d);
Canvas.SetLeft(DataLabel, 0d);
}
if (HoverShape != null)
{
var hs = (PieSlice)HoverShape;
hs.Width = chart.DrawMargin.Width;
hs.Height = chart.DrawMargin.Height;
hs.WedgeAngle = Wedge;
hs.RotationAngle = Rotation;
hs.InnerRadius = InnerRadius;
hs.Radius = Radius;
}
Slice.Width = chart.DrawMargin.Width;
Slice.Height = chart.DrawMargin.Height;
Slice.InnerRadius = InnerRadius;
Slice.Radius = Radius;
var hypo = (Slice.Radius + Slice.InnerRadius) / 2;
var gamma = current.Participation * 360 / 2 + Rotation;
var cp = new Point(hypo * Math.Sin(gamma * (Math.PI / 180)), hypo * Math.Cos(gamma * (Math.PI / 180)));
if (chart.View.DisableAnimations)
{
Slice.WedgeAngle = Wedge;
Slice.RotationAngle = Rotation;
if (DataLabel != null)
{
DataLabel.UpdateLayout();
var lx = cp.X + chart.DrawMargin.Width / 2 - DataLabel.ActualWidth * .5;
var ly = chart.DrawMargin.Height / 2 - cp.Y - DataLabel.ActualHeight * .5;
Canvas.SetLeft(DataLabel, lx);
Canvas.SetTop(DataLabel, ly);
}
return;
}
var animSpeed = chart.View.AnimationsSpeed;
if (DataLabel != null)
{
DataLabel.UpdateLayout();
var lx = cp.X + chart.DrawMargin.Width / 2 - DataLabel.ActualWidth * .5;
var ly = chart.DrawMargin.Height / 2 - cp.Y - DataLabel.ActualHeight * .5;
DataLabel.CreateCanvasStoryBoardAndBegin(lx, ly, animSpeed);
}
Slice.BeginDoubleAnimation(nameof(PieSlice.WedgeAngle), Wedge, animSpeed);
Slice.BeginDoubleAnimation(nameof(PieSlice.RotationAngle), Rotation, animSpeed);
}