GNU bug report logs - #78621
Pixelwise display specified spaces less precise than min-width

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Message #20 received at 78621 <at> debbugs.gnu.org (full text, mbox):

From: Ship Mints <shipmints <at> gmail.com>
To: Jim Porter <jporterbugs <at> gmail.com>
Cc: 78621 <at> debbugs.gnu.org
Subject: Re: bug#78621: Pixelwise display specified spaces less precise than
 min-width
Date: Wed, 28 May 2025 18:17:00 -0400

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On Wed, May 28, 2025 at 6:15 PM Ship Mints <shipmints <at> gmail.com> wrote:

> On Wed, May 28, 2025 at 6:12 PM Jim Porter <jporterbugs <at> gmail.com> wrote:
>
>> On 5/28/2025 1:40 PM, Ship Mints wrote:
>> > But... Did you run the repro in question and it worked for you, or are
>> > you saying that this worked for your case?
>>
>> I edited your repro to use that call (see the diff below), and it all
>> looks good to me, as shown in the attached screenshots.
>>
>> --- before.el   2025-05-28 14:58:33.646686778 -0700
>> +++ after.el  2025-05-28 14:58:42.551136757 -0700
>> @@ -12,8 +12,7 @@
>>       (let ((pad-to-width 150))
>>         (cl-labels
>>             ((string-pixel-width-scaled (str)
>> -             (ceiling (* (string-pixel-width str)
>> -                         (/ (float (default-font-width))
>> (frame-char-width)))))
>> +             (string-pixel-width str (current-buffer)))
>>              (insert-pad-to-width (str face)
>>                (let* ((s (propertize str 'face face))
>>                       (pad-width (- pad-to-width
>>
>
> Interesting.  The results got worse for me, not better.
>
> What platform did you test on?
>

In any case, it still doesn't explain the root of the potential bug with
:width being different than :min-width despite the inputs being identical.

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