better timeline mouse scroll wheel usage
@jeff
Submitted by Jeff F.T. Assigned to Jeff F.T. @jeff
Description
Here's a proposal of new mousewheel bindings when the cursor is over the actual timeline canvas:
- normal scroll = zoom in/out (not just on the ruler)
- shift+scroll = scroll the timeline horizontally
- ctrl+scroll = scroll the timeline vertically
- middle-click-drag: scroll horizontally and vertically (bug #T2072)
This is consistent with other gnome applications, allows efficient zooming (my most commonly used operation in video editing, which doubles function as a quick way to jump from one place of the timeline to another), and the very useful "shift+scroll" just can be documented/presented to the user as another efficient way of moving through the timeline.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=576326