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Re: Proportional fonts in the mode line (one month test)

From: Jim Porter
Subject: Re: Proportional fonts in the mode line (one month test)
Date: Sat, 27 Nov 2021 13:50:53 -0800

On 11/26/2021 4:35 AM, Lars Ingebrigtsen wrote:
The one wrinkle here, though, is that in this case, one of the
characters used here -- "%" -- is usually much wider than the "normal
character width", so ensuring no movement at all would mean that the "-"
would be surrounded by a lot of space.

This points to a similar problem I mentioned, but in reverse: If a buffer is currently read-only and I click the first "%", it will change to "-"[1] and thus become narrower. Depending on where my mouse pointer is, that could mean it's now hovering over the "modified" indicator, so if I click again, I end up changing the "modified" state, not the "read-only" state.

I think for a series of consecutive buttons, we should do whatever we can to ensure that they don't shift positions unnecessarily, and especially not when clicking on them. Whether this is ensured by :min-width/:max-width specifications, monospace fonts, or using (SVG) icons doesn't matter too much, so long as the buttons aren't shifting around. A monospace font does have the advantage of being the easiest solution though; it Just Works today.

- Jim

[1] Assuming the buffer is unmodified.

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