GNU bug report logs - #23847
24.5; dired icon too large

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: sanette-linux <sanette-linux <at> laposte.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.5; dired icon too large
Date: Sat, 25 Jun 2016 11:42:45 +0200

Hi

When starting emacs in a graphical ubuntu 16.04 session, the "dired"
icon in the toolbar is much larger than the other ones, making the
result quite ugly.
It might be related to the fact that I have a hi-dpi display and set
scale=2 in the unity Display setting. However, other icons in the
toolbar have the right size, therefore there surely is something wrong.





In GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9)
 of 2016-04-17 on lgw01-04, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11803000
System Description:    Ubuntu 16.04 LTS

Configured using:
 `configure --build x86_64-linux-gnu --prefix=/usr
 --sharedstatedir=/var/lib --libexecdir=/usr/lib
 --localstatedir=/var/lib --infodir=/usr/share/info
 --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp
 --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
 --libexecdir=/usr/lib --localstatedir=/var/lib
 --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes
 --enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.5/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.5/site-lisp:/usr/share/emacs/site-lisp
 --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars
 'CFLAGS=-g -O2 -fstack-protector-strong -Wformat
 -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
 -D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro''

Important settings:
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  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Python

Minor modes in effect:
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  tooltip-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
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Recent messages:
Mark set [6 times]
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Saving file /media/san/linux/5 min 
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<f5> is undefined
Making completion list...
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Load-path shadows:
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Message #10 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: sanette-linux <sanette-linux <at> laposte.net>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Mon, 27 Jun 2016 12:06:32 -0400

Thanks, this sounds like http://debbugs.gnu.org/21659 .
According to that report, the solution is to delete

("etc/images/diropen" . "n:system-file-manager")

from x-gtk-stock-map in x-win.el.

Message #13 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: sanette-linux <sanette-linux <at> laposte.net>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Mon, 27 Jun 2016 13:07:29 -0400

Glenn Morris wrote:

> Thanks, this sounds like http://debbugs.gnu.org/21659 .
> According to that report, the solution is to delete
>
> ("etc/images/diropen" . "n:system-file-manager")
>
> from x-gtk-stock-map in x-win.el.

But that would leave that icon unthemed and looking weird for every Gtk user.
I guess the right solution is to find whatever stock Gtk item best maps
to dired and use that instead of the current application icon.

Message #16 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: sanette-linux <sanette-linux <at> laposte.net>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Mon, 27 Jun 2016 15:59:51 -0400

Actually looking at
https://developer.gnome.org/icon-naming-spec/
there does not seem to be anything better to use.
So maybe Emacs needs to explicitly set the size for Gtk svg icons?
I don't know.

Message #19 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: sanette-linux <sanette-linux <at> laposte.net>
To: Glenn Morris <rgm <at> gnu.org>, 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Tue, 9 Aug 2016 12:05:50 +0200

Le 27/06/2016 à 19:07, Glenn Morris a écrit :
> Glenn Morris wrote:
>
>> Thanks, this sounds like http://debbugs.gnu.org/21659 .
>> According to that report, the solution is to delete
>>
>> ("etc/images/diropen" . "n:system-file-manager")
>>
>> from x-gtk-stock-map in x-win.el.
> But that would leave that icon unthemed and looking weird for every Gtk user.
> I guess the right solution is to find whatever stock Gtk item best maps
> to dired and use that instead of the current application icon.

I'm sorry I didn't have access to the laptop recently. Now I have tested 
this, and indeed it works.
thanks a lot.
I agree that the unthemed icon is not very nice and looks weird, but for 
me this is still better than
the too large one.

Message #22 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: sanette-linux <sanette-linux <at> laposte.net>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Tue, 9 Aug 2016 12:15:02 +0200

Le 27/06/2016 à 21:59, Glenn Morris a écrit :
> Actually looking at https://developer.gnome.org/icon-naming-spec/ 
> there does not seem to be anything better to use. So maybe Emacs needs 
> to explicitly set the size for Gtk svg icons? I don't know.

by the way I have an aside (newbie) question:
when I customize the variable
x-gtk-stock-map
in my .emacs, it works, but if I try to modify directly x-win.el, it has 
no effect.
(this is in /usr/share/emacs/24.5/lisp/term, I gunzip x-win.el.gz, 
modify it, then byte-compile it)
what did I miss ?

thx
S.

Message #25 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: sanette-linux <sanette-linux <at> laposte.net>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Tue, 9 Aug 2016 14:01:26 +0200

Le 27/06/2016 à 21:59, Glenn Morris a écrit :

> Actually looking at
> https://developer.gnome.org/icon-naming-spec/
> there does not seem to be anything better to use.
> So maybe Emacs needs to explicitly set the size for Gtk svg icons?
> I don't know.

I should also mention that the problem is present for ubuntu 16.04 with 
GNU Emacs 24.5.1 (x86_64-pc-linux-gnu, GTK+ Version 3.18.9)
but *not* for ubuntu 14.04 with GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, 
GTK+ Version 3.10.7)
In the latter case, the correct nautilus icon shows up with the right size.

Message #28 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: sanette-linux <sanette-linux <at> laposte.net>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Tue, 9 Aug 2016 19:20:21 +0200

Le 27/06/2016 à 21:59, Glenn Morris a écrit :

> Actually looking at
> https://developer.gnome.org/icon-naming-spec/
> there does not seem to be anything better to use.
> So maybe Emacs needs to explicitly set the size for Gtk svg icons?
> I don't know.

additional information: this is indeed related to the scale=2 setting
in the gnome display setting: if I set scale=1, then the opendir icon 
has the right size (meaning the same size as the other icons, which are 
of course very tiny for me with the setting scale=1)

So, for some reason when scale=2, the icon sizes are multiplied by 2 
(this is normal behaviour) except for the opendir icon which is 
multiplied by 4.

Maybe this means that scale is applied twice for this "named" icon ? 
Just a guess.

Message #31 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Maxim Nikulin <m.a.nikulin <at> gmail.com>
To: 23847 <at> debbugs.gnu.org
Subject: KDE and etc/images/help icon
Date: Tue, 2 Jun 2020 19:44:40 +0700

It seems that "n:system-file-manager" is not the only problem
icon in the emacs toolbar. I faced the problem with the Breeze
KDE theme and emacs-25.2 in Ubuntu-18.04.

Is there a particular reason of the choice for the help icon
that appears e.g. for customize mode?

- ("etc/images/help" . ("help-browser" "gtk-help"))

Would not it better to use "n:help-contents" for help? Unlike
"help-browser" that comes from apps, "help-contents" belongs to the
Actions category, so its style is uniform with other toolbar icons. 
Unfortunately I could not suggest an equivalent for "diropen", e.g. 
"n:folder-new" could be misleading.

Maybe I have missed something but it looks like as a quite sour story.

KDE developers believes that the problem should be fixed in emacs, see
https://bugs.kde.org/show_bug.cgi?id=353496
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=21659
I am not familiar with Gtk so I am unaware if it is possible to adjust 
breeze gtk theme to override compiled-in icon size (22px as default in 
KDE theme vs. 24px used by Gtk).

I am really puzzled by the following statement, I could not get where
related user preferences could be set:
https://developer.gnome.org/gtk3/stable/GtkToolbar.html#gtk-toolbar-set-icon-size
> gtk_toolbar_set_icon_size ()
> ...
> This should only be used for special-purpose toolbars,
> normal application toolbars should respect
> the user preferences for the size of icons.

Preferences in settings.ini are ignored, see
https://developer.gnome.org/gtk3/stable/GtkSettings.html#GtkSettings--gtk-icon-sizes
Likely it is impossible to override GtkToolbar icon-size though theme 
CSS as well.

Obviously KDE-specific hints in index.theme are not taken
into account by Gtk

    ToolbarDefault=22
    ToolbarSizes=16,22,32,48

It looks like that it is completely up to the particular application if
icon sizes other than compiled-in defaults should be used. I would
expect some high-level API in Gtk that ensures reasonable icon
sizes across displays of various sizes with minimal efforts of
developers of an application but from the first glance I have not
noticed any traces of code that runs behind the scene ensuring
meaningful defaults. Maybe there is no simple way to properly handle
screens with significantly different resolution connected to the same
box, so such work must be done in every application.

Other application experienced similar problems as well, e.g. inkscape
and gparted. They were solved by adding dedicated icons, adjusting
Breeze theme to allow scaling of icons in some directories, or by
modifying application code to force desired size through explicit scaling.

I do not know if using of gtk_icon_theme_load_icon()
with GTK_ICON_LOOKUP_FORCE_SIZE is a viable approach for emacs.

Are there any objections against "help-contents" icon for help?

P.S. GtkToolbar has been removed from the Gtk master branch.

Message #34 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: sanette-linux <sanette-linux <at> laposte.net>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Tue, 08 Feb 2022 07:50:27 +0100

sanette-linux <sanette-linux <at> laposte.net> writes:

> When starting emacs in a graphical ubuntu 16.04 session, the "dired"
> icon in the toolbar is much larger than the other ones, making the
> result quite ugly.
> It might be related to the fact that I have a hi-dpi display and set
> scale=2 in the unity Display setting. However, other icons in the
> toolbar have the right size, therefore there surely is something wrong.

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

I'm unable to reproduce this on a HiDPI display with Gnome Shell with
the current Emacs.  Are you still seeing this issue in recent Emacs
versions?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #39 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Maxim Nikulin <m.a.nikulin <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Thu, 10 Feb 2022 17:30:24 +0700

On 08/02/2022 13:50, Lars Ingebrigtsen wrote:
> sanette-linux writes:
> 
>> When starting emacs in a graphical ubuntu 16.04 session, the "dired"
>> icon in the toolbar is much larger than the other ones, making the
>> result quite ugly.
>> It might be related to the fact that I have a hi-dpi display and set
>> scale=2 in the unity Display setting. However, other icons in the
>> toolbar have the right size, therefore there surely is something wrong.
> 
> (I'm going through old bug reports that unfortunately weren't resolved
> at the time.)
> 
> I'm unable to reproduce this on a HiDPI display with Gnome Shell with
> the current Emacs.  Are you still seeing this issue in recent Emacs
> versions?

Lars, thank you for grooming the bug tracker.

I faced this bug as unrelated to HiDPI display and namely in KDE. Help 
and open folder toolbar icons have normal sizes in Gnome.

I do not have a VM with latest KDE plasma and Emacs, but I had to add 
the following to my init file on Ubuntu-20.04 focal (latest long time 
support release) with Emacs-26.3:

   '(icon-map-list
     (quote
      ((("etc/images/diropen" . "n:folder-new")
        ("etc/images/help" . "help-contents"))
       x-gtk-stock-map)))

Warning: do not try to to create such structure from easy customization 
UI. Alist pairs will not be wrapped in a list, invalid values will not 
be e.g. rejected by setter and you will get semi-broken emacs spitting 
icon-related errors on attempts of various actions.

The problem is that KDE does not provide these non-standard icons in 
sizes suitable for toolbar, Gtk takes larger versions while other icons 
have normal size.

Message #42 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Maxim Nikulin <m.a.nikulin <at> gmail.com>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Thu, 10 Feb 2022 12:46:18 +0100

Maxim Nikulin <m.a.nikulin <at> gmail.com> writes:

> I faced this bug as unrelated to HiDPI display and namely in KDE. Help
> and open folder toolbar icons have normal sizes in Gnome.
>
> I do not have a VM with latest KDE plasma and Emacs, but I had to add
> the following to my init file on Ubuntu-20.04 focal (latest long time
> support release) with Emacs-26.3:
>
>    '(icon-map-list
>      (quote
>       ((("etc/images/diropen" . "n:folder-new")
>         ("etc/images/help" . "help-contents"))
>        x-gtk-stock-map)))

Thanks.  I don't have a KDE setup here, so I can't really test easily.
Hopefully somebody else with KDE can debug this further.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #45 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Max Nikulin <manikulin <at> gmail.com>
To: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Thu, 10 Feb 2022 21:30:39 +0700

On 10/02/2022 18:46, Lars Ingebrigtsen wrote:
> Maxim Nikulin writes:
> 
> Thanks.  I don't have a KDE setup here, so I can't really test easily.
> Hopefully somebody else with KDE can debug this further.

Lars, what do you mean by "debug this further"?

breeze-icon-theme version 4:5.68.0-0ubuntu1 and other KDE themes does 
not have 24x24 system-file-manager icon, so a larger one is used. E.g. 
adwaita theme has an icon with such size so Gnome does have such 
problem. Emacs uses icons from "applications" category for "actions" 
buttons. I just can not easily confirm the problem for latest versions 
of KDE and Emacs.

/usr/share/icons/Adwaita/16x16/legacy/system-file-manager.png
/usr/share/icons/Adwaita/22x22/legacy/system-file-manager.png
/usr/share/icons/Adwaita/24x24/legacy/system-file-manager.png
/usr/share/icons/Adwaita/256x256/legacy/system-file-manager.png
/usr/share/icons/Adwaita/32x32/legacy/system-file-manager.png
/usr/share/icons/Adwaita/48x48/legacy/system-file-manager.png

/usr/share/icons/breeze/apps/16/system-file-manager.svg
/usr/share/icons/breeze/apps/22/system-file-manager.svg
/usr/share/icons/breeze/apps/32/system-file-manager.svg
/usr/share/icons/breeze/apps/48/system-file-manager.svg
/usr/share/icons/breeze/apps/64/system-file-manager.svg

See my older comment:
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=23847#31

P.S. Lars, sorry, at first I sent this message just to you instead of to 
the bug tracker.

Message #50 received at 23847 <at> debbugs.gnu.org (full text, mbox):

From: Max Nikulin <manikulin <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 23847 <at> debbugs.gnu.org
Subject: Re: bug#23847: 24.5; dired icon too large
Date: Fri, 11 Aug 2023 11:13:08 +0700

On 10/02/2022 18:46, Lars Ingebrigtsen wrote:
> Maxim Nikulin writes:
>>
>>     '(icon-map-list
>>       (quote
>>        ((("etc/images/diropen" . "n:folder-new")
>>          ("etc/images/help" . "help-contents"))
>>         x-gtk-stock-map)))
> 
> Thanks.  I don't have a KDE setup here, so I can't really test easily.
> Hopefully somebody else with KDE can debug this further.

- Debian 12 bookworm
- plasma-desktop 5.27.5-2
- emacs 28.2+1-15

The system-file-manager icon is rendered with reasonable size.

The help-browser icon, that appears e.g. in easy customization 
interface, is still too large.

dpkg -S help-browser.svg
breeze-icon-theme: /usr/share/icons/breeze/apps/48/help-browser.svg
breeze-icon-theme: /usr/share/icons/breeze-dark/apps/48/help-browser.svg

Notice that no icons appears at all in Emacs, just text is shown with 
default "Main toolbar label: besides icons". Icons with not text appears 
in Emacs when it is changed to "below icon". (System settings / 
Appearance / Global Theme / Application Style / Configure Icons and 
Toolbars)

~/.config/gtk-3.0/settings.ini
gtk-toolbar-style=2
vs. default
gtk-toolbar-style=3

In Kubuntu-20.04 I have
gtk-toolbar-style=GTK_TOOLBAR_BOTH_HORIZ
and icon+text on the same line are rendered, but it is unrelated to the 
excessively large help icon, it is a hint for those who do not see icons 
at all.

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