[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B
From: |
martin rudalics |
Subject: |
bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B |
Date: |
Mon, 14 Jan 2013 19:04:15 +0100 |
> Would something like this be good enough?
>
> (save-excursion
> (move-beginning-of-line 1)
> (setq pos1 (posn-at-point)))
> (save-excursion
> (move-beginning-of-line 2)
> (setq pos2 (posn-at-point)))
>
> Then use the Y member of the returned information in pos1 and pos2.
Looks like this should work. But at the moment I'm a bit lost with the
information returned by `posn-at-point': What precisely stands the value
of (nth 2 (posn-at-point (point-max))) for? If my buffer ends with a
newline, is that the value of the lowest pixel of the chararacter box of
the character just above the cursor? Can it include line spacing?
I wonder because I find this calculation in `posn-col-row' confusing:
(- (/ (cdr pair) (+ (frame-char-height frame) spacing))
(if (null (with-current-buffer (window-buffer window)
header-line-format))
0 1))))))))
It does not round values, so the value of rows can be less than needed
for showing the entire text. OTOH it seems to apply spacing to the last
line of a buffer. Finally, if a buffer wants a headerline, evaluating
(posn-col-row (posn-at-point (point-min))) gives (0 . -1). Is that
useful?
So I'm working with the raw data returned by `posn-at-point' and the
results are not worse than with the current approach. But I still seem
to lose some pixels somewhere ...
martin
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, (continued)
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, Eli Zaretskii, 2013/01/11
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, martin rudalics, 2013/01/12
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, Eli Zaretskii, 2013/01/12
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, martin rudalics, 2013/01/12
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, Eli Zaretskii, 2013/01/12
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, martin rudalics, 2013/01/12
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B, Eli Zaretskii, 2013/01/12
- bug#13399: 24.3.50; Word-wrap can't wrap at zero-width space U-200B,
martin rudalics <=