make-icons.sh
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#!/bin/bash
SRC=../src/icon/OpenBlockDesktop.svg
OUT_ICONSET=OpenBlockDesktop.iconset
OUT_ICNS=OpenBlockDesktop.icns
OUT_ICO=OpenBlockDesktop.ico
TMP_ICO=tmp
ICO_BASIC_SIZES="16 24 32 48 256"
ICO_EXTRA_SIZES="20 30 36 40 60 64 72 80 96 512"
if command -v pngcrush >/dev/null 2>&1; then
function optimize () {
pngcrush -new -brute -ow "$@"
}
else
echo "pngcrush is not available - skipping PNG optimization"
function optimize () {
echo "Not optimizing:" "$@"
}
fi
# usage: resize newWidth newHeight input output [otherOptions...]
function resize () {
WIDTH=$1
HEIGHT=$2
SRC=$3
DST=$4
shift 4
convert -background none -resize "${WIDTH}x${HEIGHT}" -extent "${WIDTH}x${HEIGHT}" -gravity center "$@" "${SRC}" "${DST}"
optimize "${DST}"
}
if command -v convert >/dev/null 2>&1; then
# Mac
if command -v iconutil >/dev/null 2>&1; then
mkdir -p "${OUT_ICONSET}"
for SIZE in 16 32 128 256 512; do
SIZE2=`expr "${SIZE}" '*' 2`
resize "${SIZE}" "${SIZE}" "${SRC}" "${OUT_ICONSET}/icon_${SIZE}x${SIZE}.png" -density 72 -units PixelsPerInch
resize "${SIZE2}" "${SIZE2}" "${SRC}" "${OUT_ICONSET}/icon_${SIZE}x${SIZE}@2x.png" -density 144 -units PixelsPerInch
done
iconutil -c icns --output "${OUT_ICNS}" "${OUT_ICONSET}"
else
echo "iconutil is not available - skipping ICNS and ICONSET"
fi
# Windows ICO
mkdir -p "${TMP_ICO}"
for SIZE in ${ICO_BASIC_SIZES} ${ICO_EXTRA_SIZES}; do
resize "${SIZE}" "${SIZE}" "${SRC}" "${TMP_ICO}/icon_${SIZE}x${SIZE}.png"
done
# Asking for "Zip" compression actually results in PNG compression
convert "${TMP_ICO}"/icon_*.png -colorspace sRGB -compress Zip "${OUT_ICO}"
# Windows AppX
mkdir -p "appx"
resize 44 44 "${SRC}" 'appx/Square44x44Logo.png'
resize 50 50 "${SRC}" 'appx/StoreLogo.png'
resize 150 150 "${SRC}" 'appx/Square150x150Logo.png'
resize 310 150 "${SRC}" 'appx/Wide310x150Logo.png'
else
echo "ImageMagick is not available - cannot convert icons"
fi