Fit or Fill the image for images smaller than the container

[jeacott]

Hi there,
I'm trying to use this plugin with images that are smaller than the target container. (avatars in a container big enough to manipulate)
I'd like to scale up the images so that they are properly adjusted to fit/fill by the smallest dimension, and are never able to shrink smaller than the container.
the adjustToContainer method, only seems to cater to the case where the image is larger, otherwise it always calculates a scale of 1, where a scale of >1 is what I want to lock in as a minimum (I think).
what's the best way to 'fill' an image into the container so that the image always consumes the entire container, and cannot ever be dragged/zoomed to show background?

Cheers