[Suggestion] Scroll Improvements for Party Archive

Good news! I've implemented wheel scrolling for your collection, the store and the archive list.

The wheel is a bit odd when scrolling the collection, because we also use it to zoom/unzoom items. The reason we do that is because right mouse button isn't accessible on some devices (e.g. Mac), so it's nice to have another mouse based input for zooming.

What I've done to handle that case is interpret wheel movement as a scroll instead of a zoom if you aren't over an item (i.e. if the pointer is anywhere over the collection/store but not over an item). Once you start wheel scrolling, you stay in scrolling mode as long as you keep moving the wheel every 0.5 seconds. It seems to work OK.

Also, I don't bother using the wheel scroll "delta" (i.e. number of lines to scroll). I always just scroll one line up or down for each wheel click, because our lists tend to be quite short (are "lines" are quite large compared to a line of text in a window).

 

Shortly.