[Ardour-Users] Undo please

Paul Davis paul at linuxaudiosystems.com
Tue Jan 7 09:59:10 PST 2014

On Tue, Jan 7, 2014 at 12:47 PM, Lamar Owen <lowen at pari.edu> wrote:

> Wishlist for fader undo: _per-fader_ undo.  Say, right click on the
> control, then hit ‘Undo’ with a stack per-fader would be something I would
> love to have.
> Global fader undo would be interesting and useful, too.  I do this some
> now using snapshots and backups, but it’s a bit convoluted there.
> Undo on any control (especially plugin controls! :-)) would be gorgeous……
> And I’m well aware that’s a pretty significant feature to implement……

actually, it is easier than you might think.

generalized undo has to be capable of somehow reversing and then
potentially "redoing" any operation of any kind. the complexity of the
operation is unbounded.

per-control undo is just a list of values to set that control to.
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