public static RectangleF PerformCenteredRotation(
ref RadMatrix matrix,
RectangleF bounds,
float angle)
{
SizeF sz = new SizeF(bounds.Width / 2f, bounds.Height / 2f);
matrix.RotateAt(angle, PointF.Add(bounds.Location, sz), MatrixOrder.Append);
return(TelerikHelper.GetBoundingRect(bounds, matrix));
}
public RectangleF GetTransformedBounds(RectangleF bounds)
{
RadMatrix identity = RadMatrix.Identity;
if (this.ScaleTransform != this.defaultScaleTransform)
{
identity.Translate(-bounds.X, -bounds.Y, MatrixOrder.Append);
identity.Scale(this.ScaleTransform.Width, this.ScaleTransform.Height, MatrixOrder.Append);
identity.Translate(bounds.X, bounds.Y, MatrixOrder.Append);
}
if ((double)this.AngleTransform != 0.0)
{
SizeF sz = new SizeF(bounds.Width / 2f, bounds.Height / 2f);
identity.RotateAt(this.AngleTransform, PointF.Add(bounds.Location, sz), MatrixOrder.Append);
RectangleF boundingRect = TelerikHelper.GetBoundingRect(bounds, identity);
identity.Translate(bounds.X - boundingRect.X, bounds.Y - boundingRect.Y, MatrixOrder.Append);
}
return(identity.TransformRectangle(bounds));
}