mirror of https://github.com/oxen-io/lokinet
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
3.0 KiB
Bash
80 lines
3.0 KiB
Bash
#!/bin/bash
|
|
|
|
# Invoked from cmake as mk-icns.sh /path/to/icon.svg /path/to/output.icns
|
|
svg="$1"
|
|
out="$2"
|
|
outdir="${out/%.icns/.iconset}"
|
|
|
|
set -e
|
|
|
|
# Apple's PNG encoding/decoding is buggy and likes to inject yellow lines, particularly for the
|
|
# smaller images. This is apparently a known issue since macOS 11 that apple just doesn't give a
|
|
# shit about fixing (https://en.wikipedia.org/wiki/Apple_Icon_Image_format#Known_issues).
|
|
#
|
|
# So moral of the story: we have to arse around and edit the png to put a tranparent pixel in the
|
|
# bottom-left corner but that pixel *must* be different from the preceeding color, otherwise Apple's
|
|
# garbage breaks exposing the dumpster fire that lies beneath and drops the blue channel from the
|
|
# last pixel (or run of pixels, if they are the same color (ignoring transparency). So, just to be
|
|
# consistent, we make *all* 4 corners transparent yellow, because it seems unlikely for our logo to
|
|
# have full-on yellow in the corner, and the color itself is irrelevant because it is fully
|
|
# transparent.
|
|
#
|
|
# Why is there so much broken, buggy crap in the macOS core???
|
|
|
|
no_r_kelly() {
|
|
size=$1
|
|
last=$((size - 1))
|
|
for x in 0 $last; do
|
|
for y in 0 $last; do
|
|
echo -n "color $x,$y point "
|
|
done
|
|
done
|
|
}
|
|
|
|
|
|
|
|
mkdir -p "${outdir}"
|
|
for size in 32 64 128 256 512 1024; do
|
|
# Yay Apple thanks for this utter trash OS.
|
|
last=$((size - 1))
|
|
convert -background none -resize "${size}x${size}" "$svg" \
|
|
-fill '#ff00' -draw "$(no_r_kelly $size)" \
|
|
-strip "png32:${outdir}/icon_${size}x${size}.png"
|
|
done
|
|
|
|
|
|
# Outputs the imagemagick -draw command to color the corner-adjacent pixels as half-transparent
|
|
# white. We use this for the 16x16 (the others pick up corner transparency from the svg).
|
|
semitransparent_off_corners() {
|
|
size=$1
|
|
for x in 1 $((size - 2)); do
|
|
for y in 0 $((size - 1)); do
|
|
echo -n "color $x,$y point "
|
|
done
|
|
done
|
|
for x in 0 $((size -1)); do
|
|
for y in 1 $((size - 2)); do
|
|
echo -n "color $x,$y point "
|
|
done
|
|
done
|
|
}
|
|
|
|
# For 16x16 we crop the image to 5/8 of its regular size before resizing which effectively zooms in
|
|
# on it a bit because if we resize the full icon it ends up a fuzzy mess, while the crop and resize
|
|
# lets us retain some detail of the logo. (We don't do this for the 16x16@2x because that is really
|
|
# 32x32 where it retains enough detail).
|
|
convert -background none -resize 512x512 "$svg" -gravity Center -extent 320x320 -resize 16x16 \
|
|
-fill '#ff00' -draw "$(no_r_kelly 16)" \
|
|
-fill '#fff8' -draw "$(semitransparent_off_corners 16)" \
|
|
-strip "png32:$outdir/icon_16x16.png"
|
|
|
|
# Create all the "@2x" versions which are just the double-size versions
|
|
rm -f "${outdir}/icon_*@2x.png"
|
|
mv "${outdir}/icon_1024x1024.png" "${outdir}/icon_512x512@2x.png"
|
|
for size in 16 32 128 256; do
|
|
double=$((size * 2))
|
|
ln -f "${outdir}/icon_${double}x${double}.png" "${outdir}/icon_${size}x${size}@2x.png"
|
|
done
|
|
|
|
iconutil -c icns "${outdir}"
|