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svgtopng
#!/bin/bash
scalesvg ()
{
svgfile="$1"
pngdir="$2"
pngscale="$3"
qualifier="$4"
svgwidthxheight=$(identify "$svgfile" | cut -d ' ' -f 3)
svgwidth=${svgwidthxheight%x*}
svgheight=${svgwidthxheight#*x}
pngfile="$(basename $svgfile)" # Strip path.
pngfile="${pngfile/.svg/.png}" # Replace extension.
pngfile="${pngfile/[^A-Za-z0-9._]/_}" # Replace invalid characters.
pngfile="$pngdir/$qualifier/$pngfile" # Prepend output path.
if [ ! -d $(dirname "$pngfile") ]; then
echo "WARNING: Output directory does not exist: $(dirname "$pngfile")"
#echo "Exiting"
#exit 1
echo "Outputting here instead: $pngfile"
pngfile="$qualifier-${svgfile/.svg/.png}"
fi
pngwidth=$(echo "scale=0; $svgwidth*$pngscale" | bc -l)
pngheight=$(echo "scale=0; $svgheight*$pngscale" | bc -l)
pngdensity=$(echo "scale=0; 72*$pngscale" | bc -l) # 72 is default,
echo "$svgfile ${svgwidth}×${svgheight}px -> $pngfile ${pngwidth}×${pngheight}px @ $pngdensity dpi"
convert -background transparent -density $pngdensity "$svgfile" "$pngfile"
# trim the png
convert -trim "$pngfile" "$pngfile"
#inkscape -w${pngwidth} --export-background-opacity=0 --export-png="$pngfile" "$svgfile" > /dev/null
#convert "$svgfile" -background transparent -scale ${pngwidth}x${pngheight} "$pngfile"
}
svgfiles="$1"
svgfiles="${svgfiles:=*.svg}" # Default to input all *.svg in current dir.
pngdir="$2"
pngdir="${pngdir:=../res}" # Default to place output pngs to ../res, ie. ../res/drawable-hdpi etc.
for svgfile in $svgfiles; do
echo "Scaling $svgfile ..."
scalesvg "$svgfile" "$pngdir" 0.75 drawable-ldpi
scalesvg "$svgfile" "$pngdir" 1 drawable-mdpi
scalesvg "$svgfile" "$pngdir" 1.5 drawable-hdpi
scalesvg "$svgfile" "$pngdir" 2 drawable-xhdpi
done
echo -n "Done."
read # I've made it wait for Enter -- convenient when run from Nautilus.
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