Summary:
Currently, if an image is too wide for the viewport, we freak out. Instead, scale it down.
This means we must also scale down all the rectangles on it, which is why this is tricky. However, all the draw/load separation has made it reasonably straightforward.
We'll possibly need to add some kind of "view full size" thing. I'm planning to add an element which shows "85%" or whatever if it's currently scaled.
Test Plan:
Before:
{F33607}
After:
{F33608}
Reviewers: chad, ljalonen
Reviewed By: chad
CC: aran
Differential Revision: https://secure.phabricator.com/D5088
26f8e76ee2