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bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a l
From: |
Po Lu |
Subject: |
bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line |
Date: |
Wed, 29 Dec 2021 21:54:38 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
> Why did you want to use a before-string? why not simply a single
> invisible character before the button?
It has to be an overlay, because wid-insert might not be able to insert
such a character before the button. (In general, the display of
everything in a button except for text seems to be done entirely with
overlays -- I don't think the buffer is supposed to contain anything
other than the text of the button itself.)
> It sounds like an unnecessary complication to me, since before-strings
> and after-strings are inherently tricky, even when they aren't
> invisible.
> But if you want me to look into this, you know what to do: show me a
> short Lisp recipe which I could investigate.
I hope this helps:
(with-current-buffer (get-buffer-create "*test*")
(insert #("foo\nfoo" 0 4 (face widget-field)))
(let ((overlay (make-overlay 5 8 nil t nil)))
(overlay-put overlay 'before-string (propertize " " 'invisible t))
(overlay-put overlay 'face custom-button)))
After this, I would have expected the second "foo" in *test* to begin
with a box line, but it doesn't.
Thanks in advance.
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, (continued)
bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Eli Zaretskii, 2021/12/28
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Po Lu, 2021/12/28
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Eli Zaretskii, 2021/12/29
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Po Lu, 2021/12/29
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Eli Zaretskii, 2021/12/29
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line,
Po Lu <=
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Eli Zaretskii, 2021/12/29
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Po Lu, 2021/12/29
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Eli Zaretskii, 2021/12/30
- bug#51550: 29.0.50; Customize Group INS buttons sometimes don't have a left box line, Po Lu, 2021/12/30