What is the easiest way to check if some contour or component in the glyph is inside some abstract rectangle?

I have coordinates and size of the rectangle. Now I would like to check out if the objects shapes are inside it.

Determining if points are inside the rect is easy. But when it comes to components and contours: something that have lines and curves is really hard.
I've been trying to creating the function, that would take the contour or component as an argument, and return True or False value. (True if at least part of the shape is inside the rectangle). I've been trying to do it with the booleanOperators and I failed.

Any help?

By the way, I'm thinking that it could be a bug:

from mojo.tools import union
g = CurrentGlyph()
union(g, g[0], g[1], roundCoordinates=None)

gives

Traceback (most recent call last):
  File "<untitled>", line 3, in <module>
  File "/Applications/RoboFont3.app/Contents/Resources/lib/python3.6/mojo/tools.py", line 84, in union
  File "/Applications/RoboFont3.app/Contents/Resources/lib/python3.6/mojo/tools.py", line 84, in <listcomp>
  File "/Applications/RoboFont3.app/Contents/Resources/lib/python3.6/fontParts/base/base.py", line 255, in naked
  File "/Applications/RoboFont3.app/Contents/Resources/lib/python3.6/fontParts/base/base.py", line 232, in raiseNotImplementedError
NotImplementedError: The RSegment subclass does not implement this method.

def overlaps(contourOrComponent, box):

    left, bottom, right, top = contourOrComponent.bounds
    rectLeft, rectBottom, rectRight, rectTop = box

    xOverlap = right > rectLeft and left < rectRight
    yOverlap = top > rectBottom and bottom < rectTop

    if xOverlap and yOverlap:
        return True
    else:
        return False

x, y, w, h = 118, 246, 104, 402
box = x, y, x+w, y+h

g = CurrentGlyph()

for c in g.contours:
    print(overlaps(c, box), c)

for c in g.components:
    print(overlaps(c, box), c)

from mojo.tools import union
g = CurrentGlyph()
union(g, [g[0]], [g[1]], roundCoordinates=None)

good luck!

g = CurrentGlyph()

x, y, w, h = 206, -218, 358, 392
box = x, y, x+w, y+h

translate(230, 270)

for contour in g.contours:
    color = (0, 1, 0) if overlaps(contour, box) else (1, 0, 0)
    fill(*color)
    B = BezierPath()
    contour.draw(B)
    drawPath(B)

stroke(0)
strokeWidth(10)
fill(None)
drawGlyph(g)

stroke(0, 0, 1)
rect(x, y, w, h)

also take a look at fontTools arrayTools: sectRect, pointsInRect, pointInRect