/// <summary>
/// Retuirns the BoundingRectangle of the shape.
/// This default implementation uses the GetBounds() method provided by the GraphicsPath class.
/// It is recommended to override this method with more shape specific versions that do not call base.
/// </summary>
/// <param name="tight">
/// If true, a thight fitting x axis aligned bounding rectangle will be returned.
/// If false, a x axis aligned bounding rectangle also containing all control points will be returned.
/// </param>
protected override Rectangle CalculateBoundingRectangle(bool tight)
{
if (tight)
{
Rectangle result = Rectangle.Empty;
if (DrawCacheIsInvalid)
{
CalculatePath();
result = Rectangle.Ceiling(Path.GetBounds());
if (Angle != 0)
{
Point tl, tr, bl, br;
Geometry.RotateRectangle(result, Point.Empty, Geometry.TenthsOfDegreeToDegrees(Angle), out tl, out tr, out bl, out br);
Geometry.CalcBoundingRectangle(tl, tr, bl, br, out result);
}
result.Offset(X, Y);
}
else
{
result = Rectangle.Ceiling(Path.GetBounds());
}
ShapeUtils.InflateBoundingRectangle(ref result, LineStyle);
return(result);
}
else
{
Rectangle result = Rectangle.Empty;
if (DrawCacheIsInvalid)
{
CalcControlPoints();
Point tl = Point.Empty, tr = Point.Empty, bl = Point.Empty, br = Point.Empty;
for (int i = ControlPoints.Length - 1; i >= 0; --i)
{
Point pt = ControlPoints[i];
if (pt.X <= tl.X && pt.Y <= tl.Y)
{
tl = pt;
}
if (pt.X >= tr.X && pt.Y <= tr.Y)
{
tr = pt;
}
if (pt.X <= bl.X && pt.Y >= bl.Y)
{
bl = pt;
}
if (pt.X >= br.X && pt.Y >= br.Y)
{
br = pt;
}
}
if (Angle != 0)
{
tl = Geometry.RotatePoint(Point.Empty, Geometry.TenthsOfDegreeToDegrees(Angle), tl);
tr = Geometry.RotatePoint(Point.Empty, Geometry.TenthsOfDegreeToDegrees(Angle), tr);
bl = Geometry.RotatePoint(Point.Empty, Geometry.TenthsOfDegreeToDegrees(Angle), bl);
br = Geometry.RotatePoint(Point.Empty, Geometry.TenthsOfDegreeToDegrees(Angle), br);
}
Geometry.CalcBoundingRectangle(tl, tr, bl, br, out result);
result.Offset(X, Y);
}
else
{
Geometry.CalcBoundingRectangle(ControlPoints, out result);
}
return(result);
}
}