If I set the width of an image it sizes the height of the
image proportionately. This is good. However, on querying the
object for its height you get the true (original) height returned.
I can't see to find any property (visible at debug time) that can
give me the visible height.
The issue with this is that the image is in a Canvas and the
Canvas also sees it's true height and sizes itself according to
that height instead of the percieved height.