/// <summary>
/// Override so that the radial pattern extends beyond the set size to the farthest corner.
/// With the repeat at the distances
/// </summary>
/// <param name="offset"></param>
/// <param name="size"></param>
/// <returns></returns>
protected override List <PDFGradientFunctionBoundary> GetRepeatingBoundaries(PDFPoint offset, PDFSize size)
{
var items = base.GetRepeatingBoundaries(offset, size);
if (this.Size != RadialSize.None && this.Size != RadialSize.FarthestCorner)
{
var height = Math.Abs(size.Height.PointsValue);
var width = size.Width.PointsValue;
//calculate the centre and radii for the names side and farthest corner
var newItems = new List <PDFGradientFunctionBoundary>(items.Count);
PDFPoint centre = PDFRadialShadingPattern.CacluateRadialCentre(this.XCentre, this.YCentre, height, width);
var radiusActual = Math.Abs(PDFRadialShadingPattern.CalculateRadiusForSize(this.Size, height, width, centre.X.PointsValue, centre.Y.PointsValue));
var radiusRequired = Math.Abs(PDFRadialShadingPattern.CalculateRadiusForSize(RadialSize.FarthestCorner, height, width, centre.X.PointsValue, centre.Y.PointsValue));
//all our boundaries will be adjusted for the factor so we extend out.
var factor = radiusActual / radiusRequired;
var start = 0.0;
var boundary = 0.0;
var index = 0;
while (boundary < 1)
{
var one = items[index];
boundary = (one.Bounds * factor) + start;
one = new PDFGradientFunctionBoundary(boundary);
newItems.Add(one);
index++;
if (index >= items.Count)
{
index = 0;
start = boundary;
boundary = 0.0;
}
}
this.Size = RadialSize.FarthestCorner;
items = newItems;
}
return(items);
}
public PDFResource GetRadialShadingPattern(PDFGraphics g, string key, PDFGradientRadialDescriptor descriptor, PDFRect bounds)
{
PDFRadialShadingPattern pattern = new PDFRadialShadingPattern(g.Container.Document, key, descriptor, bounds);
return(pattern);
}
