static IPropertyValue ToGradientStop(List <CssToken> value)
{
var color = default(IPropertyValue);
var position = default(IPropertyValue);
var items = value.ToItems();
if (items.Count != 0)
{
position = LengthOrPercentConverter.Convert(items[items.Count - 1]);
if (position != null)
{
items.RemoveAt(items.Count - 1);
}
}
if (items.Count != 0)
{
color = ColorConverter.Convert(items[items.Count - 1]);
if (color != null)
{
items.RemoveAt(items.Count - 1);
}
}
return(items.Count == 0 ? new StopValue(color, position, value) : null);
}
public RadialGradientConverter()
{
var position = PointConverter.StartsWithKeyword(Keywords.At).Option(Point.Center);
var circle = WithOrder(WithAny(Assign(Keywords.Circle, true).Option(true),
LengthConverter.Option()),
position);
var ellipse = WithOrder(WithAny(Assign(Keywords.Ellipse, false).Option(false),
LengthOrPercentConverter.Many(2, 2).Option()),
position);
var extents = WithOrder(WithAny(Toggle(Keywords.Circle, Keywords.Ellipse).Option(false),
Map.RadialGradientSizeModes.ToConverter()), position);
_converter = circle.Or(ellipse.Or(extents));
}
