Make the circle in the overview pane be drawn based on the pixel size of the visible area instead of the number of selected cells

[Robert Leach]

I just realized that the circle I draw in the overview matrix when the visible area is small won't scale well with small data sets and could potentially draw inside the visible area instead of around it.

[Robert Leach]

Resolved issue #196: Make the circle in the overview pane be drawn based on the pixel size of the visible area instead of the number of selected cells.

→ <<cset 0caa020eee5c>>

[Robert Leach]

Merged to master.