Flip image

[lonelymaw]

Current behavior

The image can currently be rotated in 90 degree increments, but it cannot be flipped.

Suggested behavior

I think it's likely users would want to flip images if they can rotate them as well. Having button(s) to do so horizontally and/or vertically could be useful.

[everestpipkin]

Rotation is to compensate for images that lose their orientation exif data - because flipping isn't denoted by exif I'm going to shelve it for now.

[lonelymaw]

@everestpipkin Ahh, got it! That makes a lot of sense.