An outline view that is capable of animatedly showing/hiding each subview, similar to that seen in Coda by Panic and a few other apps.

A description of the view and its workings can be found on my blog.

Changes 17/01/09

• Updated the project layout to make svn:external easy, without importing the demo app.

• Minor bug fixes and changes.

Changes 4/11/08

• The view now supports the animated addition, insertion and removal of views from the outline view.

• TLGradientView has been made friendlier to subclassing by changing the way the fill gradient is selected.

• API additions, for example, a view owned by an NSViewController can be added to the outline view using a single method call.

• Changing the height of a detail view to accommodate a change in the content now causes the subviews of the outline view to alter their origins so nothing is clipped.

• The TLDisclosureBar now allows any arbitrary NSView to be added to the right-hand side via the -accessoryView property. So now you can put a button, or anything you like there.

• The resizing behaviour of the view has been improved so the label text progressively truncates as the width of the view is reduced.

• The spacing between the rows can be customised by a delegate implementing the -rowSeparation method