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* bug#65214: 29.1; Tall images in 'image-mode' can't be scrolled with 'pixel-scroll-precision-mode' on
@ 2023-08-10 17:05 Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors
  2023-08-11  3:38 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
  0 siblings, 1 reply; 11+ messages in thread
From: Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors @ 2023-08-10 17:05 UTC (permalink / raw)
  To: 65214


Dear Emacs developers,

To reproduce starting from 'emacs -Q' visit an image file. Then
repeatedly use 'i +' till the image is taller than the window. The
image can be scrolled using mouse wheel. Now do

M-x pixel-scroll-precision-mode

After this attempting to scroll the image will set the vscroll to 0
and then image can't be scrolled at all.

From some investigation it seems like this behavior is not specific
to image-mode. Another way to reproduce the behavior is to evaluate
the following lisp code,

(let* ((win (display-buffer (get-buffer-create "image-pixel-precision-test")))
       (height (* (window-text-height win t) 2))
       (file "path/to/image"))
  (select-window win)
  (erase-buffer)
  (insert-image (create-image file nil nil))
  (goto-char 1)
  (pixel-scroll-precision-mode)
  nil)

This image thus displayed can not be scrolled. However if the code
above is slightly modified to insert a new line after the image,
scrolling can be done normally, i.e.

(let* ((win (display-buffer (get-buffer-create "image-pixel-precision-test")))
       (height (* (window-text-height win t) 2))
       (file "path/to/image"))
  (select-window win)
  (erase-buffer)
  (insert-image (create-image file nil nil))
  (insert "\n")
  (goto-char 1)
  (pixel-scroll-precision-mode)
  nil)

produces an image that can be scrolled. Inserting a newline after the
text covered by the text property holding the image also fixes the
problem in 'image-mode' but that doesn't seem like the right fix to me.

Rahguzar


In GNU Emacs 29.1 (build 1, x86_64-suse-linux-gnu, GTK+ Version 3.24.38,
 cairo version 1.17.8) of 2023-08-07 built on lamb11
System Description: openSUSE Tumbleweed

Configured using:
 'configure --host=x86_64-suse-linux-gnu --build=x86_64-suse-linux-gnu
 --program-prefix= --disable-dependency-tracking --prefix=/usr
 --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin
 --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include
 --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var
 --sharedstatedir=/var/lib --mandir=/usr/share/man
 --infodir=/usr/share/info --with-pgtk --with-native-compilation=aot
 --with-cairo --with-libotf --with-jpeg --with-tiff --with-gif
 --with-png --with-rsvg --with-xft --with-xml2 --with-dbus --with-sound
 --with-json --with-mailutils --with-gnutls --with-tree-sitter
 --enable-locallisppath=/usr/share/emacs/29.1/site-lisp:/usr/share/emacs/site-lisp
 'CFLAGS=-O2 -Wall -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3
 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables
 -fstack-clash-protection -Werror=return-type -flto=auto'
 LDFLAGS=-Wl,-O2'

Configured features:
CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY
PDUMPER PGTK PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER XIM GTK3 ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: mu4e:main

Minor modes in effect:
  recentf-mode: t
  save-place-mode: t
  global-so-long-mode: t
  projectile-mode: t
  which-key-mode: t
  savehist-mode: t
  better-jumper-mode: t
  better-jumper-local-mode: t
  global-company-mode: t
  company-mode: t
  vertico-mode: t
  all-the-icons-completion-mode: t
  marginalia-mode: t
  evil-goggles-mode: t
  evil-escape-mode: t
  evil-snipe-override-mode: t
  evil-snipe-mode: t
  gcmh-mode: t
  winner-mode: t
  smartparens-global-mode: t
  ws-butler-global-mode: t
  undo-fu-session-global-mode: t
  undo-fu-mode: t
  satchel-mode: t
  mu4e-search-minor-mode: t
  global-hl-line-mode: t
  hl-line-mode: t
  mu4e-update-minor-mode: t
  mu4e-context-minor-mode: t
  dirvish-override-dired-mode: t
  server-mode: t
  pixel-scroll-precision-mode: t
  repeat-mode: t
  evil-mode: t
  evil-local-mode: t
  windmove-mode: t
  +popup-mode: t
  +modeline-global-mode: t
  +modeline-mode: t
  override-global-mode: t
  general-override-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  window-divider-mode: t
  buffer-read-only: t
  size-indication-mode: t
  line-number-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  abbrev-mode: t

Load-path shadows:
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/home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-mark hides /usr/share/emacs/site-lisp/mu4e/mu4e-mark
/home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-main hides /usr/share/emacs/site-lisp/mu4e/mu4e-main
/home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-helpers hides /usr/share/emacs/site-lisp/mu4e/mu4e-helpers
/home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-headers hides /usr/share/emacs/site-lisp/mu4e/mu4e-headers
/home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-folders hides /usr/share/emacs/site-lisp/mu4e/mu4e-folders
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/home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-lists hides /usr/share/emacs/site-lisp/mu4e/mu4e-lists
/home/azeem/.emacs.d/.local/straight/build-29.1/mu4e/mu4e-contacts hides /usr/share/emacs/site-lisp/mu4e/mu4e-contacts

Features:
(shadow whitespace display-line-numbers adaptive-wrap jit-spell ispell
face-remap recentf tree-widget saveplace evil-collection-so-long so-long
emacsbug cursor-sensor vertico-repeat link-hint ffap goto-addr avy
shr-color jka-compr auto-minor-mode mm-archive sort smiley gnus-cite
mail-extr qp textsec uni-scripts idna-mapping ucs-normalize
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gnus-score score-mode nnvirtual gnus-msg nntp gnus-cache projectile
lisp-mnt evil-collection-grep grep hide-mode-line
evil-collection-which-key which-key savehist better-jumper company-capf
company evil-collection-vertico vertico orderless
all-the-icons-completion marginalia compat evil-goggles pulse color
evil-easymotion evil-escape evil-snipe gcmh winner smartparens-config
smartparens-text smartparens dash ws-butler undo-fu-session undo-fu
satchel ibuf-ext evil-collection-ibuffer ibuffer ibuffer-loaddefs
desktop frameset mu4e mu4e-org evil-collection-org smartparens-org org
ob ob-tangle ob-ref ob-lob ob-table ob-exp org-macro org-src ob-comint
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noutline outline ob-emacs-lisp ob-core ob-eval org-cycle org-table ol
org-fold org-fold-core org-keys oc-natbib oc-csl bibtex oc-biblatex oc
org-loaddefs find-func org-version org-compat org-macs mu4e-notification
notifications mu4e-main mu4e-view gnus-art mm-uu mml2015 mm-view
mml-smime smime gnutls dig gnus-sum gnus-group gnus-undo gnus-start
gnus-dbus dbus autorevert filenotify gnus-cloud nnimap nnmail
mail-source utf7 nnoo parse-time iso8601 gnus-spec gnus-int gnus-range
gnus-win evil-collection-gnus gnus nnheader range
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mu4e-modeline mu4e-vars mu4e-helpers mu4e-config mu4e-window
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rfc2045 mm-util ietf-drums mail-prsvr mailabbrev mail-utils gmm-utils
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pixel-scroll cua-base repeat midnight html2text let-alist
evil-collection-flymake flymake-proc flymake project
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wid-edit evil-collection-comint evil-collection annalist compile
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evil-command-window evil-search evil-types evil-macros evil-repeat
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calc-loaddefs calc-macs thingatpt rect evil-digraphs evil-vars ring
all-the-icons all-the-icons-faces data-material data-weathericons
data-octicons data-fileicons data-faicons data-alltheicons derived
edmacro kmacro use-package-bind-key bind-key comp comp-cstr warnings
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cl-loaddefs cl-lib pcase gv harfbuzz jansson dynamic-modules subr-x rmc
iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook
vc-hooks lisp-float-type mwheel term/pgtk-win pgtk-win term/common-win
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menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse
jit-lock font-lock syntax font-core term/tty-colors frame minibuffer
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cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp
files window text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget keymap hashtable-print-readable backquote
threads dbusbind inotify dynamic-setting system-font-setting
font-render-setting cairo gtk pgtk multi-tty make-network-process
native-compile emacs)

Memory information:
((conses 16 838555 316547)
 (symbols 48 42792 15)
 (strings 32 169060 12011)
 (string-bytes 1 5569967)
 (vectors 16 93707)
 (vector-slots 8 1658949 153955)
 (floats 8 1309 1539)
 (intervals 56 17242 89)
 (buffers 984 18))





^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2023-08-27  8:53 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-08-10 17:05 bug#65214: 29.1; Tall images in 'image-mode' can't be scrolled with 'pixel-scroll-precision-mode' on Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-11  3:38 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-11 13:19   ` Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-11 14:39     ` Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-12  2:22       ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-12  6:50         ` Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-12  7:25           ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-12 10:43             ` Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-27  7:53             ` Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-27  8:16               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-08-27  8:53                 ` Rahguzar via Bug reports for GNU Emacs, the Swiss army knife of text editors

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