* bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
@ 2020-09-17 16:03 Yuan Fu
2020-09-17 17:32 ` Eli Zaretskii
2020-09-19 18:33 ` bug#43469: Fwd: " Yuan Fu
0 siblings, 2 replies; 7+ messages in thread
From: Yuan Fu @ 2020-09-17 16:03 UTC (permalink / raw)
To: 43469
To reproduce:
In scratch buffer:
(progn (insert "xxxxxxxxxxxxxx")
(print (car (window-text-pixel-size
nil (line-beginning-position) (line-end-position))))
(put-text-property (line-beginning-position) (line-end-position)
'line-prefix " ")
(print (car (window-text-pixel-size
nil (line-beginning-position) (line-end-position)))))
Prints first 98, then 119
In GNU Emacs 28.0.50 (build 8, x86_64-apple-darwin19.6.0, NS appkit-1894.60 Version 10.15.6 (Build 19G2021))
of 2020-08-23 built on Brown
Repository revision: 4aff89ece6d9ceee882375879518b71ca6a89a70
Repository branch: master
Windowing system distributor 'Apple', version 10.3.1894
System Description: Mac OS X 10.15.6
Configured using:
'configure --with-modules --with-pdumper=yes
--oldincludedir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/libxml2/
--with-ns
PKG_CONFIG_PATH=/usr/local/Cellar/zlib/1.2.8/lib/pkgconfig:/usr/local/lib/pkgconfig:/opt/X11/lib/pkgconfig'
Configured features:
PNG RSVG DBUS GLIB NOTIFY KQUEUE ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS XIM NS MODULES THREADS JSON PDUMPER LCMS2
Important settings:
value of $LC_CTYPE: UTF-8
value of $LANG: en_CN.UTF-8
locale-coding-system: utf-8-unix
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
global-eldoc-mode: t
eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Load-path shadows:
None found.
Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
rfc822 mml easymenu mml-sec password-cache epa derived epg epg-config
gnus-util rmail rmail-loaddefs text-property-search time-date subr-x seq
byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies mm-encode
mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs cl-lib
sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils
tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type
mwheel term/ns-win ns-win ucs-normalize mule-util term/common-win
tool-bar dnd fontset image regexp-opt fringe tabulated-list replace
newcomment text-mode elisp-mode lisp-mode prog-mode register page
tab-bar menu-bar rfn-eshadow isearch timer select scroll-bar mouse
jit-lock font-lock syntax facemenu font-core term/tty-colors frame
minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
composite charscript charprop case-table epa-hook jka-cmpr-hook help
simple abbrev obarray cl-preloaded nadvice loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
threads dbusbind kqueue cocoa ns lcms2 multi-tty make-network-process
emacs)
Memory information:
((conses 16 44330 5709)
(symbols 48 5924 1)
(strings 32 15276 1588)
(string-bytes 1 500116)
(vectors 16 9923)
(vector-slots 8 142976 7765)
(floats 8 20 42)
(intervals 56 192 0)
(buffers 992 10))
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
2020-09-17 16:03 bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set Yuan Fu
@ 2020-09-17 17:32 ` Eli Zaretskii
2020-09-18 17:05 ` Yuan Fu
2020-09-19 18:33 ` bug#43469: Fwd: " Yuan Fu
1 sibling, 1 reply; 7+ messages in thread
From: Eli Zaretskii @ 2020-09-17 17:32 UTC (permalink / raw)
To: Yuan Fu; +Cc: 43469
> From: Yuan Fu <casouri@gmail.com>
> Date: Thu, 17 Sep 2020 12:03:35 -0400
>
> (progn (insert "xxxxxxxxxxxxxx")
> (print (car (window-text-pixel-size
> nil (line-beginning-position) (line-end-position))))
> (put-text-property (line-beginning-position) (line-end-position)
> 'line-prefix " ")
> (print (car (window-text-pixel-size
> nil (line-beginning-position) (line-end-position)))))
>
> Prints first 98, then 119
Why do you think this is a bug?
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
2020-09-17 17:32 ` Eli Zaretskii
@ 2020-09-18 17:05 ` Yuan Fu
2020-09-18 19:22 ` Eli Zaretskii
0 siblings, 1 reply; 7+ messages in thread
From: Yuan Fu @ 2020-09-18 17:05 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 43469
> On Sep 17, 2020, at 1:32 PM, Eli Zaretskii <eliz@gnu.org> wrote:
>
>> From: Yuan Fu <casouri@gmail.com>
>> Date: Thu, 17 Sep 2020 12:03:35 -0400
>>
>> (progn (insert "xxxxxxxxxxxxxx")
>> (print (car (window-text-pixel-size
>> nil (line-beginning-position) (line-end-position))))
>> (put-text-property (line-beginning-position) (line-end-position)
>> 'line-prefix " ")
>> (print (car (window-text-pixel-size
>> nil (line-beginning-position) (line-end-position)))))
>>
>> Prints first 98, then 119
>
> Why do you think this is a bug?
I thought the pixel width shouldn’t include the line-prefix?
Yuan
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
2020-09-18 17:05 ` Yuan Fu
@ 2020-09-18 19:22 ` Eli Zaretskii
2020-09-19 18:33 ` Yuan Fu
0 siblings, 1 reply; 7+ messages in thread
From: Eli Zaretskii @ 2020-09-18 19:22 UTC (permalink / raw)
To: Yuan Fu; +Cc: 43469
> From: Yuan Fu <casouri@gmail.com>
> Date: Fri, 18 Sep 2020 13:05:15 -0400
> Cc: 43469@debbugs.gnu.org
>
> >> (progn (insert "xxxxxxxxxxxxxx")
> >> (print (car (window-text-pixel-size
> >> nil (line-beginning-position) (line-end-position))))
> >> (put-text-property (line-beginning-position) (line-end-position)
> >> 'line-prefix " ")
> >> (print (car (window-text-pixel-size
> >> nil (line-beginning-position) (line-end-position)))))
> >>
> >> Prints first 98, then 119
> >
> > Why do you think this is a bug?
>
> I thought the pixel width shouldn’t include the line-prefix?
It should. From the function's doc string:
This function exists to allow Lisp programs to adjust the dimensions
of WINDOW to the buffer text it needs to display.
When you want to know how wide a window you need for displaying some
text, you do want the line-prefix part accounted for.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
2020-09-18 19:22 ` Eli Zaretskii
@ 2020-09-19 18:33 ` Yuan Fu
2020-09-19 18:56 ` Eli Zaretskii
0 siblings, 1 reply; 7+ messages in thread
From: Yuan Fu @ 2020-09-19 18:33 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 43469
> On Sep 18, 2020, at 3:22 PM, Eli Zaretskii <eliz@gnu.org> wrote:
>
>> From: Yuan Fu <casouri@gmail.com>
>> Date: Fri, 18 Sep 2020 13:05:15 -0400
>> Cc: 43469@debbugs.gnu.org
>>
>>>> (progn (insert "xxxxxxxxxxxxxx")
>>>> (print (car (window-text-pixel-size
>>>> nil (line-beginning-position) (line-end-position))))
>>>> (put-text-property (line-beginning-position) (line-end-position)
>>>> 'line-prefix " ")
>>>> (print (car (window-text-pixel-size
>>>> nil (line-beginning-position) (line-end-position)))))
>>>>
>>>> Prints first 98, then 119
>>>
>>> Why do you think this is a bug?
>>
>> I thought the pixel width shouldn’t include the line-prefix?
>
> It should. From the function's doc string:
>
> This function exists to allow Lisp programs to adjust the dimensions
> of WINDOW to the buffer text it needs to display.
>
> When you want to know how wide a window you need for displaying some
> text, you do want the line-prefix part accounted for.
I see. I managed to use (window-text-pixel-size nil (point) (point)) to calculate the prefix width and subtract it out. Thanks.
Yuan
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#43469: Fwd: bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
2020-09-17 16:03 bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set Yuan Fu
2020-09-17 17:32 ` Eli Zaretskii
@ 2020-09-19 18:33 ` Yuan Fu
1 sibling, 0 replies; 7+ messages in thread
From: Yuan Fu @ 2020-09-19 18:33 UTC (permalink / raw)
To: 43469-done
[-- Attachment #1: Type: text/plain, Size: 1547 bytes --]
> Begin forwarded message:
>
> From: Yuan Fu <casouri@gmail.com>
> Subject: Re: bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
> Date: September 19, 2020 at 2:33:03 PM GMT-4
> To: Eli Zaretskii <eliz@gnu.org>
> Cc: 43469@debbugs.gnu.org
>
>
>
>> On Sep 18, 2020, at 3:22 PM, Eli Zaretskii <eliz@gnu.org> wrote:
>>
>>> From: Yuan Fu <casouri@gmail.com>
>>> Date: Fri, 18 Sep 2020 13:05:15 -0400
>>> Cc: 43469@debbugs.gnu.org
>>>
>>>>> (progn (insert "xxxxxxxxxxxxxx")
>>>>> (print (car (window-text-pixel-size
>>>>> nil (line-beginning-position) (line-end-position))))
>>>>> (put-text-property (line-beginning-position) (line-end-position)
>>>>> 'line-prefix " ")
>>>>> (print (car (window-text-pixel-size
>>>>> nil (line-beginning-position) (line-end-position)))))
>>>>>
>>>>> Prints first 98, then 119
>>>>
>>>> Why do you think this is a bug?
>>>
>>> I thought the pixel width shouldn’t include the line-prefix?
>>
>> It should. From the function's doc string:
>>
>> This function exists to allow Lisp programs to adjust the dimensions
>> of WINDOW to the buffer text it needs to display.
>>
>> When you want to know how wide a window you need for displaying some
>> text, you do want the line-prefix part accounted for.
>
> I see. I managed to use (window-text-pixel-size nil (point) (point)) to calculate the prefix width and subtract it out. Thanks.
>
> Yuan
>
[-- Attachment #2: Type: text/html, Size: 4854 bytes --]
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set
2020-09-19 18:33 ` Yuan Fu
@ 2020-09-19 18:56 ` Eli Zaretskii
0 siblings, 0 replies; 7+ messages in thread
From: Eli Zaretskii @ 2020-09-19 18:56 UTC (permalink / raw)
To: Yuan Fu; +Cc: 43469-done
> From: Yuan Fu <casouri@gmail.com>
> Date: Sat, 19 Sep 2020 14:33:03 -0400
> Cc: 43469@debbugs.gnu.org
>
> > This function exists to allow Lisp programs to adjust the dimensions
> > of WINDOW to the buffer text it needs to display.
> >
> > When you want to know how wide a window you need for displaying some
> > text, you do want the line-prefix part accounted for.
>
> I see. I managed to use (window-text-pixel-size nil (point) (point)) to calculate the prefix width and subtract it out. Thanks.
Thanks, so I'm closing this bug.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2020-09-19 18:56 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-09-17 16:03 bug#43469: 28.0.50; window-text-pixel-size returns incorrect value when line-prefix is set Yuan Fu
2020-09-17 17:32 ` Eli Zaretskii
2020-09-18 17:05 ` Yuan Fu
2020-09-18 19:22 ` Eli Zaretskii
2020-09-19 18:33 ` Yuan Fu
2020-09-19 18:56 ` Eli Zaretskii
2020-09-19 18:33 ` bug#43469: Fwd: " Yuan Fu
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