Comment 13 for bug 300877

Thanks for your fast reply, I really appreciate that. Here's some anwers to the new behaviours of GC:

1) Yes you can't have them *at the same time*, you have to choose first your regular (or diagonal) guides settings, apply and then choosing your diagonal (or regular) guides settings and apply again, without forgetting to uncheck the "delete existing guides" option to avoid deleting guides you've just created. I did this because I found awkward that someone who just want diagonal guides have to set all the regular guides options to "none" and uncheck all the boxes to avoid regular guides to be drawn (and vice versa). It's a bit frustrating to do that each time you switch between diagonal and regular guides.
There is an alternative solution which consists to put all the options (regular guides and diagonal guides) in the same tab (so in this case not putting tabs at all because there's only two) but the final GUI rendering isn't so nice (a lot of options in the same place, bigger GUI). I think smaller GUIs are better (IMO) and less frightening for new users.
However I'm aware that it isn't the perfect solution to click twice on "apply" button when you want to have both of guides, but it seems to me a "less worst" solution that unset all options each time you want to switch between regular and diagonal guides (IMO, we can discuss it further, maybe i'm the only one here to think like that! :)

2) Yes you're right. I'm thinking to a way to avoid this. The fact is I currently don't know how to check whether the extension is in "preview mode" or in "apply mode" (i don't know if you understand me). I'll need this to change extension's behaviour depending on the "mode" the extension is.
Your wish is to be able to preview diagonal (or regular) guides without deleting the regular (or diagonal) ones you've just created when you're previewing isn't it?

3) You mean the "Vertical guides each" and "Horizontal guides each" labelled comboboxes? Because they are only here for "Custom" preset, all the others presets have their own internal values ("golden ratio" has something like 1.618 ratio and "rule of third" preset is equal to "Custom" preset with 1/3 and 1/3 values (vertical and horizontal)) and so they don't care about these comboboxes.

Thanks again for pointing this out, I look forward reading you, meanwhile I will see how I could manage the #2 (if you or someone have a begining of solution I'll be happy to know it).

By the way I'll be also interested to hear more about other people feelings regarding the #1 (if my proposition is the "less worst" one or not).