148 lines
4.6 KiB
Bash
Executable File
148 lines
4.6 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# By Maciej Dworak
|
|
# Version 2021-06-04
|
|
# Compatible with Inkscape 1.0
|
|
# This script generates PNG icons from SVG files using Inkscape.
|
|
# If pngquant is installed, it will automatically use it to compress the PNGs.
|
|
#
|
|
# PNG files are written to /tmp/rt-icons-XXXX
|
|
#
|
|
# USAGE EXAMPLES
|
|
# ./tools/generatePngIcons rtdata/images/themed/svg/*
|
|
# ./tools/generatePngIcons rtdata/images/themed/svg/circle* rtdata/images/themed/svg/square-toggle-*
|
|
|
|
# No touching below this line
|
|
# -----------------------------------------------------------------------------
|
|
|
|
#tmpDir="$(mktemp -d /tmp/rt-icons-XXXX)" || exit
|
|
tmpDir="/tmp/rt-icons"
|
|
rm -r "$tmpDir"
|
|
mkdir "$tmpDir" || exit 1
|
|
outDir="$tmpDir"
|
|
|
|
# Abort if Inkscape is not installed:
|
|
if [[ ${OSTYPE^^} = "MSYS" ]]; then
|
|
if ! command -v "/c/Program Files/Inkscape/inkscape.exe" >/dev/null; then
|
|
printf '%s\n' "Inkscape does not appear to be installed. Aborting."
|
|
exit 1
|
|
fi
|
|
else
|
|
if ! command -v inkscape >/dev/null; then
|
|
printf '%s\n' "Inkscape does not appear to be installed. Aborting."
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
# Command-line arguments:
|
|
if [[ $# -eq 0 ]]; then
|
|
printf '%s\n' "This script generates PNG icons from SVG files using Inkscape." \
|
|
"" \
|
|
"USAGE" \
|
|
" Generate PNG icons from many SVG icons and output to /tmp/rt-icons-XXXX" \
|
|
" ./generatePngIcons some-icons-*.svg" \
|
|
"" \
|
|
"If pngquant is installed, it will automatically use it to compress the PNGs." \
|
|
""
|
|
exit 0
|
|
fi
|
|
|
|
printf '%s\n' "Converting SVG icons to PNG." "${#} files passed as arguments."
|
|
|
|
# This color will be replaced by each theme's color:
|
|
colRef="#2a7fff"
|
|
|
|
# Define theme names, and for each theme the color which will replace colorRef:
|
|
declare -A themes
|
|
themes=( ["dark"]="#CCCCCC" ["light"]="#252525" )
|
|
|
|
# Optionally use pngquant to compress resulting PNGs:
|
|
doCompress="false"
|
|
if command -v pngquant >/dev/null; then
|
|
doCompress="true"
|
|
printf '%s\n' "pngquant found, will compress PNG files." ""
|
|
fi
|
|
|
|
# Ask for confirmation if folders already present:
|
|
folderExists="false"
|
|
doDelete="true"
|
|
for theme in "${!themes[@]}"; do
|
|
if [[ -d "${outDir}/${theme}" ]]; then
|
|
folderExists="true"
|
|
doDelete="false"
|
|
fi
|
|
done
|
|
if [[ $folderExists = "true" ]]; then
|
|
printf '%s\n' "One or more output folders already exist in \"${outDir}\". If you proceed, they will be deleted."
|
|
read -r -p "Proceed? [y/n]: "
|
|
if [[ $REPLY =~ ^[Yy]$ ]]; then
|
|
doDelete="true"
|
|
else
|
|
printf '%s\n' "Aborting."
|
|
exit 0
|
|
fi
|
|
fi
|
|
|
|
# Create output folders:
|
|
for theme in "${!themes[@]}"; do
|
|
if [[ -d "${outDir}/${theme}" && $doDelete = "true" ]]; then
|
|
rm -rf "${outDir:?}/${theme}"
|
|
fi
|
|
mkdir -p "${outDir:?}/${theme}" || exit 1
|
|
done
|
|
printf '%s\n' "Output folder: ${outDir}" ""
|
|
|
|
# Platform-dependent SVG to PNG conversion using Inkscape
|
|
# $1 = output PNG absolute path
|
|
# $2 = input SVG absolute path
|
|
convertSvg() {
|
|
if [[ ${OSTYPE^^} = "MSYS" ]]; then
|
|
"/c/Program Files/Inkscape/inkscape.exe" \
|
|
--export-area-page \
|
|
--export-background-opacity="0" \
|
|
--export-type=png \
|
|
--export-filename="$1" \
|
|
"$2"
|
|
else
|
|
inkscape \
|
|
--export-area-page \
|
|
--export-background-opacity="0" \
|
|
--export-type=png \
|
|
--export-filename="$1" \
|
|
"$2"
|
|
fi
|
|
|
|
if [[ $doCompress = "true" ]]; then
|
|
sizeBefore=$(wc -c < "$1")
|
|
pngquant \
|
|
--quality=70-80 \
|
|
--ext .png \
|
|
--force \
|
|
--skip-if-larger \
|
|
"$1"
|
|
sizeAfter=$(wc -c < "$1")
|
|
printf 'Filesize before: %s After: %s Difference: %s\n' "$sizeBefore" "$sizeAfter" "$((sizeBefore - sizeAfter))"
|
|
fi
|
|
}
|
|
|
|
# Iterate over each SVG, saving PNGs for each theme.
|
|
# Files passed as arguments can have absolute paths or just filenames depending on how the user calls the script,
|
|
# so svgFilename and svgAbsolute are explicitly handled.
|
|
for f in "${@}"; do
|
|
if [[ $f = *.svg || $f = *.svgz ]]; then
|
|
svgAbsolute="$(readlink -m -n "$f")"
|
|
svgFilename="$(basename "$svgAbsolute")"
|
|
printf '%s\n' "Processing: ${svgAbsolute}"
|
|
|
|
for theme in "${!themes[@]}"; do
|
|
printf '%s\n' "Theme: ${theme}"
|
|
sed -e "s/fill:${colRef};/fill:${themes[$theme]};/" -e "s/stroke:${colRef};/stroke:${themes[$theme]};/" "$svgAbsolute" > "${outDir}/${theme}/${svgFilename}"
|
|
convertSvg "${outDir}/${theme}/${svgFilename%.svg*}.png" "${outDir}/${theme}/${svgFilename}"
|
|
rm "${outDir}/${theme}/${svgFilename}"
|
|
done
|
|
|
|
printf '\n'
|
|
fi
|
|
done
|
|
|
|
printf '%s\n' "Done." ""
|