0366edfc1a
- New script generatePngIcons to generate PNG icons from SVG ones. - Deleted all SVG icons. - Created new SVG icon template. - Created atom.svg using new template. - Deleted tools/source_icons - Moved non-icon files out of rtdata/icons
137 lines
4.2 KiB
Bash
Executable File
137 lines
4.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# By Maciej Dworak
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# Version 2018-05-21
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# This script generates PNG icons from SVG files using Inkscape.
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# If pngquant is installed, it will automatically use it to compress the PNGs.
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#
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# PNG files are written to /tmp/rt-icons-XXXX
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#
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# USAGE
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# Generate PNG icons from many SVG icons and output to /tmp/rt-icons-XXXX
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# ./generatePngIcons some-icons-*.svg
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# No touching below this line
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# -----------------------------------------------------------------------------
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tmpDir="$(mktemp -d /tmp/rt-icons-XXXX)" || exit
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outDir="$tmpDir"
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# Abort if Inkscape is not installed:
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if ! command -v inkscape >/dev/null; then
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printf '%s\n' "Inkscape does not appear to be installed. Aborting."
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exit 1
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fi
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# Command-line arguments:
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if [[ $# -eq 0 ]]; then
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printf '%s\n' "This script generates PNG icons from SVG files using Inkscape." \
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"" \
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"USAGE" \
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" Generate PNG icons from many SVG icons and output to /tmp/rt-icons-XXXX" \
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" ./generatePngIcons some-icons-*.svg" \
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"" \
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"If pngquant is installed, it will automatically use it to compress the PNGs." \
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""
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exit 0
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fi
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printf '%s\n' "Converting SVG icons to PNG." "${#} files passed as arguments."
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# This color will be replaced by each theme's color:
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colRef="#2a7fff"
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# Define theme names, and for each theme the color which will replace colorRef:
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declare -A themes
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themes=( ["dark"]="#BBBBBB" ["light"]="#252525" )
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# Optionally use pngquant to compress resulting PNGs:
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doCompress="false"
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if command -v pngquant >/dev/null; then
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doCompress="true"
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printf '%s\n' "pngquant found, will compress PNG files." ""
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fi
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# Ask for confirmation if folders already present:
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folderExists="false"
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doDelete="true"
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for theme in "${!themes[@]}"; do
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if [[ -d "${outDir}/${theme}" ]]; then
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folderExists="true"
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doDelete="false"
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fi
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done
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if [[ $folderExists = "true" ]]; then
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printf '%s\n' "One or more output folders already exist in \"${outDir}\". If you proceed, they will be deleted."
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read -r -p "Proceed? [y/n]: "
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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doDelete="true"
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else
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printf '%s\n' "Aborting."
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exit 0
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fi
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fi
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# Create output folders:
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for theme in "${!themes[@]}"; do
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if [[ -d "${outDir}/${theme}" && $doDelete = "true" ]]; then
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rm -rf "${outDir:?}/${theme}"
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fi
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mkdir -p "${outDir:?}/${theme}" || exit 1
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done
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printf '%s\n' "Output folder: ${outDir}" ""
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# Platform-dependent SVG to PNG conversion using Inkscape
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# $1 = output PNG absolute path
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# $2 = input SVG absolute path
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convertSvg() {
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if [[ ${OSTYPE^^} = "MSYS" ]]; then
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"/c/Program Files/Inkscape/inkscape.exe" \
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--without-gui \
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--export-area-page \
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--export-background-opacity="0" \
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--export-png="$1" \
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"$2"
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else
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inkscape \
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--without-gui \
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--export-area-page \
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--export-background-opacity="0" \
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--export-png="$1" \
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"$2"
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fi
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if [[ $doCompress = "true" ]]; then
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sizeBefore=$(wc -c < "$1")
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pngquant \
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--quality=70-80 \
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--ext .png \
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--force \
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--skip-if-larger \
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"$1"
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sizeAfter=$(wc -c < "$1")
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printf 'Filesize fefore: %s After: %s Difference: %s\n' "$sizeBefore" "$sizeAfter" "$((sizeBefore - sizeAfter))"
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fi
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}
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# Iterate over each SVG, saving PNGs for each theme.
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# Files passed as arguments can have absolute paths or just filenames depending on how the user calls the script,
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# so svgFilename and svgAbsolute are explicitly handled.
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for f in "${@}"; do
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if [[ $f = *.svg || $f = *.svgz ]]; then
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svgAbsolute="$(readlink -m -n "$f")"
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svgFilename="$(basename "$svgAbsolute")"
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printf '%s\n' "Processing: ${svgAbsolute}"
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for theme in "${!themes[@]}"; do
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printf '%s\n' "Theme: ${theme}"
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sed -e "s/fill:${colRef};/fill:${themes[$theme]};/" "$svgAbsolute" > "${outDir}/${theme}/${svgFilename}"
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convertSvg "${outDir}/${theme}/${svgFilename%.svg*}.png" "${outDir}/${theme}/${svgFilename}"
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rm "${outDir}/${theme}/${svgFilename}"
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done
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printf '\n'
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fi
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done
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printf '%s\n' "Done." ""
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