bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors]

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Hi,

Here is a patch to have a SVG version of the Gnus mode-line logo.  I
have used "etc/images/gnus/gnus.svg" as a base, removed the shadow and
just kept the head of the Gnu.

I have chosen to remove the stroke color so the foreground color of the
default face will be used to draw the icon.  I think it is better to
match any themes.

I have kept all the copyright information from gnus.svg but I think it
could also be minified a bit by stripping it.  WDYT?

Best regards,

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[-- Attachment #2: 0001-Gnus-mode-line-logo-in-SVG.patch --]
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From 7ddf403b2ca30dbc45651214b6d93c360dccfbfe Mon Sep 17 00:00:00 2001
From: Manuel Giraud <manuel@ledu-giraud.fr>
Date: Tue, 14 Nov 2023 14:49:37 +0100
Subject: [PATCH] Gnus mode line logo in SVG

* etc/images/gnus/gnus-pointer.svg: SVG Gnus mode line logo.
* lisp/gnus/gnus.el (gnus-mode-line-buffer-identification): Use it.
---
 etc/images/gnus/gnus-pointer.svg | 94 ++++++++++++++++++++++++++++++++
 lisp/gnus/gnus.el                |  6 +-
 2 files changed, 98 insertions(+), 2 deletions(-)
 create mode 100644 etc/images/gnus/gnus-pointer.svg

diff --git a/etc/images/gnus/gnus-pointer.svg b/etc/images/gnus/gnus-pointer.svg
new file mode 100644
index 00000000000..67a631cdcf5
--- /dev/null
+++ b/etc/images/gnus/gnus-pointer.svg
@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Gnu Emacs Logo
+
+   Copyright (C) 2008-2023 Free Software Foundation, Inc.
+
+   Author: Francesc Rocher <f.rocher@member.fsf.org>
+
+   This file is part of GNU Emacs.
+
+   GNU Emacs is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   GNU Emacs is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg
+   width="23.6206187542"
+   height="16"
+   version="1.0"
+   style="display:inline"
+   id="svg1"
+   sodipodi:docname="gnus-pointer.svg"
+   inkscape:version="1.3 (0e150ed6c4, 2023-07-21)"
+   viewBox="0 0 167.68044 113.58242"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/">
+  <defs
+     id="defs1" />
+  <sodipodi:namedview
+     id="namedview1"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:zoom="2.7948886"
+     inkscape:cx="128.09097"
+     inkscape:cy="123.26073"
+     inkscape:current-layer="layer1" />
+  <metadata
+     id="metadata2166">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <cc:license
+           rdf:resource="https://www.gnu.org/copyleft/gpl.html" />
+        <dc:title>gnus</dc:title>
+        <dc:date>2008/06/28</dc:date>
+        <dc:creator>
+          <cc:Agent>
+            <dc:title>Francesc Rocher</dc:title>
+          </cc:Agent>
+        </dc:creator>
+        <dc:rights>
+          <cc:Agent>
+            <dc:title>GPL</dc:title>
+          </cc:Agent>
+        </dc:rights>
+        <dc:description>gnus icon image</dc:description>
+        <cc:license
+           rdf:resource="https://www.gnu.org/copyleft/gpl.html" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-214.53867,-140.13329)">
+    <path
+       style="fill-opacity:1"
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+       id="path1" />
+  </g>
+</svg>
diff --git a/lisp/gnus/gnus.el b/lisp/gnus/gnus.el
index fc8518512ee..ffe81e5c585 100644
--- a/lisp/gnus/gnus.el
+++ b/lisp/gnus/gnus.el
@@ -325,8 +325,10 @@ gnus-mode-line-buffer-identification
 	 0 5
 	 (list 'display
 	       (find-image
-		'((:type xpm :file "gnus-pointer.xpm"
-			 :ascent center)
+		'((:type svg :file "gnus-pointer.svg"
+                         :ascent center)
+                  (:type xpm :file "gnus-pointer.xpm"
+			    :ascent center)
 		  (:type xbm :file "gnus-pointer.xbm"
 			 :ascent center))
 		t)
-- 
2.42.0


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In GNU Emacs 30.0.50 (build 2, x86_64-unknown-openbsd7.4) of 2023-11-14
 built on computer
Repository revision: 183d2c3e5463d33af05e5ea8ea546bd348da0d10
Repository branch: master
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-- 
Manuel Giraud

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Eric Abrahamsen]

Manuel Giraud via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs@gnu.org> writes:

> Hi,
>
> Here is a patch to have a SVG version of the Gnus mode-line logo.  I
> have used "etc/images/gnus/gnus.svg" as a base, removed the shadow and
> just kept the head of the Gnu.
>
> I have chosen to remove the stroke color so the foreground color of the
> default face will be used to draw the icon.  I think it is better to
> match any themes.
>
> I have kept all the copyright information from gnus.svg but I think it
> could also be minified a bit by stripping it.  WDYT?

Looks good to me, thank you! For my amusement I rebuilt Emacs without
SVG support and it correctly fell back to the xpm file.

I think it's fine to leave the copyright information etc just as it is
in gnus.svg. Maybe let's give it a day in case a maintainer wants to
chime in, but I'd expect it's fine as-is.

Thanks,
Eric

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

[...]

> Looks good to me, thank you! For my amusement I rebuilt Emacs without
> SVG support and it correctly fell back to the xpm file.
>
> I think it's fine to leave the copyright information etc just as it is
> in gnus.svg. Maybe let's give it a day in case a maintainer wants to
> chime in, but I'd expect it's fine as-is.

Hi Eric and thanks for the kind words,

The thing I am not really sure about is the scaling.  Like it is done
for the xpm, this image is set to ":scale 1" but as it is a SVG it might
make sense to scale it to the mode-line's char-height.  I don't know how
to do that though.
-- 
Manuel Giraud

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Eric Abrahamsen]

Manuel Giraud via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs@gnu.org> writes:

> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
> [...]
>
>> Looks good to me, thank you! For my amusement I rebuilt Emacs without
>> SVG support and it correctly fell back to the xpm file.
>>
>> I think it's fine to leave the copyright information etc just as it is
>> in gnus.svg. Maybe let's give it a day in case a maintainer wants to
>> chime in, but I'd expect it's fine as-is.
>
> Hi Eric and thanks for the kind words,
>
> The thing I am not really sure about is the scaling.  Like it is done
> for the xpm, this image is set to ":scale 1" but as it is a SVG it might
> make sense to scale it to the mode-line's char-height.  I don't know how
> to do that though.

Hmm, I couldn't find an explicit statement of this in the manual, but it
looks to me that, since we're using the 'display text property, the
:scale property will already be relative to the text that _would have
been displayed there_. IOW, we're already scaled to the text. The text
property is applied to the "^Gnus:" part of a string, so 5 characters,
and that's our base.

Anyway, if you're concerned that the icon might bulge out the mode line
or something, I don't think that will happen.

Eric

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

[...]

> Hmm, I couldn't find an explicit statement of this in the manual, but it
> looks to me that, since we're using the 'display text property, the
> :scale property will already be relative to the text that _would have
> been displayed there_. IOW, we're already scaled to the text. The text
> property is applied to the "^Gnus:" part of a string, so 5 characters,
> and that's our base.

I don't know how it works for you but for me the pixmap version is
always the same size whatever the font size I'm using.

> Anyway, if you're concerned that the icon might bulge out the mode line
> or something, I don't think that will happen.

Yes, I have tested with really tiny font and the icon (pixmap or SVG)
never bulge.  So all in all, I think that this patch could go in as is.
-- 
Manuel Giraud

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Eric Abrahamsen]

On 11/20/23 10:23 AM, Manuel Giraud wrote:
> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
> [...]
>
>> Hmm, I couldn't find an explicit statement of this in the manual, but it
>> looks to me that, since we're using the 'display text property, the
>> :scale property will already be relative to the text that _would have
>> been displayed there_. IOW, we're already scaled to the text. The text
>> property is applied to the "^Gnus:" part of a string, so 5 characters,
>> and that's our base.
>
> I don't know how it works for you but for me the pixmap version is
> always the same size whatever the font size I'm using.

I suppose that makes sense! Given that it's a pixmap. But not an issue
for us.

>> Anyway, if you're concerned that the icon might bulge out the mode line
>> or something, I don't think that will happen.
>
> Yes, I have tested with really tiny font and the icon (pixmap or SVG)
> never bulge.  So all in all, I think that this patch could go in as is.

Done! Thanks for the patch.

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

[...]

> Done! Thanks for the patch.

Thank you!
-- 
Manuel Giraud

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Visuwesh]

[செவ்வாய் நவம்பர் 14, 2023] Manuel Giraud via "Bug reports for GNU Emacs, the Swiss army knife of text editors" wrote:

[ Sorry for the late reply.  ]

> Hi,
>
> Here is a patch to have a SVG version of the Gnus mode-line logo.  I
> have used "etc/images/gnus/gnus.svg" as a base, removed the shadow and
> just kept the head of the Gnu.
>
> I have chosen to remove the stroke color so the foreground color of the
> default face will be used to draw the icon.  I think it is better to
> match any themes.
>
> I have kept all the copyright information from gnus.svg but I think it
> could also be minified a bit by stripping it.  WDYT?
>
> Best regards,

The logo looks really clean but unfortunately it is not the same blue
anymore.  Is this something we should care about?  Personally, I liked
the nice blue colour of the Gnus logo in the mode-line: a hint of colour
in the otherwise monochrome mode-line.

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Manuel Giraud via Bug reports for GNU Emacs, the Swiss army knife of text editors]

Visuwesh <visuweshm@gmail.com> writes:

[...]

> The logo looks really clean but unfortunately it is not the same blue
> anymore.  Is this something we should care about?  Personally, I liked
> the nice blue colour of the Gnus logo in the mode-line: a hint of colour
> in the otherwise monochrome mode-line.

Hi,

I think that this blue was working with light themes (BTW this is what I
use most of the time) but not so much with dark themes.  Hence, I did
not set the foreground color in the SVG for it to have the default
foreground color.

I think that if we should do something about it the best would be to
define a new face for it (or better, maybe use an already existing one…
but which one?)

Best regards,
-- 
Manuel Giraud

bug#67174: 30.0.50; [PATCH] What about a vectorized Gnus mode-line logo?

[Visuwesh]

[திங்கள் நவம்பர் 27, 2023] Manuel Giraud wrote:

>> The logo looks really clean but unfortunately it is not the same blue
>> anymore.  Is this something we should care about?  Personally, I liked
>> the nice blue colour of the Gnus logo in the mode-line: a hint of colour
>> in the otherwise monochrome mode-line.
>
> Hi,
>
> I think that this blue was working with light themes (BTW this is what I
> use most of the time) but not so much with dark themes.  Hence, I did
> not set the foreground color in the SVG for it to have the default
> foreground color.

Ah, I see.  I have never used a dark theme myself so I didn't know.

> I think that if we should do something about it the best would be to
> define a new face for it (or better, maybe use an already existing one…
> but which one?)

That would be nice to have since I do like the little splash of colour.