protected static new void DrawDecorator(DiagramPaintEventArgs e, IGeometryHost geometryHost, float rotation, PointD centerRight, LinkDecorator decorator)
{
SizeD size = LinkShapeGeometry.SizeDecorator;
#endif
double offsetBy = 0d;
bool doOffset = false;
ILinkDecoratorSettings settings = decorator as ILinkDecoratorSettings;
if (settings != null)
{
size = settings.DecoratorSize;
offsetBy = settings.OffsetBy;
doOffset = !VGConstants.FuzzZero(offsetBy, VGConstants.FuzzDistance);
}
Graphics g = e.Graphics;
RectangleD boundingRect = new RectangleD(centerRight.X - size.Width, centerRight.Y - (size.Height / 2), size.Width, size.Height);
Matrix rotationMatrix = g.Transform;
float offsetX = 0f;
float offsetY = 0f;
if (doOffset)
{
double rotationRadians = rotation * Math.PI / 180;
offsetX = (float)(offsetBy * Math.Cos(rotationRadians));
offsetY = (float)(offsetBy * Math.Sin(rotationRadians));
rotationMatrix.Translate(offsetX, offsetY);
}
rotationMatrix.RotateAt(rotation, PointD.ToPointF(centerRight));
g.Transform = rotationMatrix;
decorator.DoPaintShape(boundingRect, geometryHost, e);
rotationMatrix.RotateAt(-rotation, PointD.ToPointF(centerRight));
if (doOffset)
{
rotationMatrix.Translate(-offsetX, -offsetY);
}
g.Transform = rotationMatrix;
}
private static void ExcludeDecorator(Graphics g, ObliqueBinaryLinkShapeGeometry geometry, LinkDecorator decorator, PointD fromPoint, PointD toPoint)
{
SizeD size = LinkShapeGeometry.SizeDecorator;
#endif
ILinkDecoratorSettings settings = decorator as ILinkDecoratorSettings;
double offsetBy = double.NaN;
if (settings != null)
{
size = settings.DecoratorSize;
offsetBy = settings.OffsetBy;
if (VGConstants.FuzzZero(offsetBy, VGConstants.FuzzDistance))
{
offsetBy = double.NaN;
}
}
RectangleD bounds = new RectangleD(fromPoint.X - size.Width, fromPoint.Y - (size.Height / 2), size.Width, size.Height);
float rotationAngle = geometry.CalculateRotationAngle(fromPoint, toPoint);
ExcludeDecorator(g, bounds, rotationAngle, offsetBy, fromPoint);
}
