protected override Geometry GetOrCreateBoxGeometry(Size renderSize)
{
var ellipse = Ellipse.CreateFromSize(renderSize);
this.SetCurrentValue(EllipseProperty, ellipse);
if (ellipse.RadiusX <= 0 || ellipse.RadiusY <= 0)
{
return(Geometry.Empty);
}
if (this.BoxGeometry is EllipseGeometry)
{
return(this.BoxGeometry);
}
var geometry = new EllipseGeometry();
geometry.Bind(EllipseGeometry.CenterProperty)
.OneWayTo(this, EllipseProperty, EllipseCenterConverter.Default);
geometry.Bind(EllipseGeometry.RadiusXProperty)
.OneWayTo(this, EllipseProperty, EllipseRadiusXConverter.Default);
geometry.Bind(EllipseGeometry.RadiusYProperty)
.OneWayTo(this, EllipseProperty, EllipseRadiusYConverter.Default);
return(geometry);
}
