undo messes with the view even though undo panzoom is disabled

[KaiMartin]

By default, gschem undo includes pan and zoom into its undo cache. That is, it backsteps the views on undo. This is mildly annoying and very unusual, to say the least. I know no other graphics application that does this.

I understand the intention - get the view to where the undo action is. However, it does not work for me. Either I know very well what is going to be undone because I did it seconds before. Or the actual does not catch my attention because I find myself at some unexpected spot.

There is an option in system-gschemrc that seems like it should switch off undo of zoom and pan. So I put this line in my gschemrc:

    (undo-panzoom "disabled")

But gschem still sometimes changes the view when I hit [u] to undo an edit.

Suggestion:
   1) Disable undo-panzoom by default.
   2) Make sure that no pan or zoom is undone when undo-panzoom is disabled.

---<)kaimartin(>---

[Bert Timmerman (bert-timmerman)]

Hi,

FWIW:

From an "electrical" point of view including the zoom operations in "undo/redo" may not be necessary.

OTOH, the"principle of least surprise" for users is a point to consider as well.

I for one like to see every step in the "undo/redo" sequence, even if the electrical functionality of the schematic does not change in a zoom undo/redo operation.

However if undo-panzoom is set "disabled", gschem should play nice and consistent, if not, please file a bug report.

I would go for suggestion 2.

Kind regards,

Bert Timmerman.

P.S. IIRC, AutoCAD does.

[Roland Lutz (rlutz)]

fixed in 1f5de2868e49692a0538728306ea92549936472f

[Roland Lutz (rlutz)]

released in gEDA/gaf 1.10.0