Canvas widget

[chris]

The 'canvas' widget needs to be implemented for the nav map and other areas.

[knowknowledge]

Besides the Nav Map, which has already been implemented, what fuctionality would require a Canvas Widget?

What should the interface for the canvas look like?

Should the Canvas take in a "Draw" function defined elsewhere that would put all of the details onto the canvas?

Should the Canvas take in a collection of symbols (points, shapes, lines, images, colors)