Re: [PATCH] Flymake Support Indicator Errors in Margin

[bird <sbaugh@catern.com>]

Elijah G <eg642616@gmail.com> writes:
> On Sun, Mar 17, 2024 at 10:44 AM bird <sbaugh@catern.com> wrote:
>> Elijah, could you say more about your setup?
>>
>> - You mentioned you already have a left margin configured; what is
>>   displayed in that margin? Is it anything other than flymake/flycheck
>>   indicators?
>
> Yes, it is dape-mode, in terminal dape is automatically configured for
> display breakpoints in left-margin, however the error indicators can appear
> next to breakpoint or even hide it if left-margin-width is less than 1.
> This can also apply to other packages that can use margins like
> git-gutter, et cetera.

I see.  Wouldn't the margin-based indicator conflict with these
packages, then?

>> - Is there some reason that seeing the indicators is especially
>>   important for you?  Does it communicate information not already
>>   carried by the face?
>
> It is due that the fringes are too small in HIDPI screens, i know
> I can change it to a bigger fringe bitmap and increase fringe width size,
> however this is a problem when increasing and decreasing text size.

Oh, so the motivation for this patch is actually for hidpi support in
graphical frames, not support in terminal frames?

I see that there are a number of bugs about fringes not being scaled for
hidpi screens on X... that's unfortunate.  Especially relevant is
bug#37932.

Po Lu, any comments about supporting hidpi fringes on X?  Is that
fundamentally hard, or is it just a matter of writing some code which
does scaling?

Even a basic, partial implementation of hidpi fringes would be very
good, I think.  Without that, perhaps flymake should use margins instead
of fringes even on graphical frames.  hidpi screens are increasingly
common, after all.