Undo history

[akhmerov]

Great project!

I have however found one historically inaccurate bit: from what I remember, MS Paint didn't have undo history, limiting undo only to the last action. A quick search suggests it is indeed the case.

Perhaps jspaint should support a "historically precise" and "enhanced" modes?

[Airblader]

The README explicitly mentions that this version has unlimited undos as opposed to the original, so this is intended.

[1j01]

Yeah, I've considered having different modes for jspaint, but I'm not really interested in historical accuracy when it comes to arbitrarily limiting the user. I'd much rather work on historical accuracy of the efficiency of the undo history - because whilst mspaint limited the number of undos you could do drastically, it also stored them much more efficiently, whereas I naively store the entire image for every undo state.

If you just want historical accuracy, use an emulator! There's a nice online one here: https://copy.sh/v86/
It's got Windows 95 and Windows 98. (Of course you'd have to screenshot it to save images from it..)
(Windows 95, 98, and probably XP supported 3 undos. Basically none. 😄)

[1j01]

Closing this as I don't think it would be an improvement. I've opened #51 for efficiency.