[L2Ork-dev] atomic multi-step undo and pd vanilla

[Guillem Bartrina Moreno]

Hi,
I have been checking pd vanilla "triggerize" feature, as Matt suggested,
together with its undo system. It turns out that pd vanilla already has an
atomic multi-step undo system implemented that allows us to start a
sequence of undo actions, fill it with all actions that we need and then
finalize it. Then, while undoing, if the system encounters the start/end of
the sequence it executes all undo steps until the end/start is reached.
As you have been talking about merging some pd vanilla interesting features
into purr data, what do you think about this one?
I don't know what would be better. I have checked the implementation
differences between vanilla and purr data and there are some of them that
could probably break the system if we do a direct merge. Basically pd
vanilla changed the place where the undo queue is stored and therefore how
it's accessed, and some other implementation differences and add-ons.
An option would be porting only the things that we want to add to purr
data, adjusting them as needed. Another one would be implementing them from
scratch, as intended.

Best,

-- 
Guillem Bartrina Moreno
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