convert2PNG

#!/bin/bash

if [ "$2" = "16" ]; then
	resize="-filter box -resize"
	width="$2"
	if [ "$1" == "43" ] || [ "$1" == "32" ] || [ "$1" == "53" ] || [ "$1" == "2" ]; then
		height="11"
	elif [ "$1" = "1" ]; then
		height="$width"
	fi
elif [ "$2" = "36" ]; then
	resize="-resize"
	width="$2"
	if [ "$1" = "43" ]; then
		height="27"
	elif [ "$1" = "32" ]; then
		height="24"
	elif [ "$1" = "53" ]; then
		height="22"
	elif [ "$1" = "2" ]; then
		height="18"
	elif [ "$1" = "1" ]; then
		height="$width"
	fi
elif [ "$2" = "75" ]; then
	resize="-filter triangle -resize"
	width="$2"
	if [ "$1" = "43" ]; then
		height="56"
	elif [ "$1" = "32" ]; then
		height="50"
	elif [ "$1" = "53" ]; then
		height="45"
	elif [ "$1" = "2" ]; then
		height="38"
	elif [ "$1" = "1" ]; then
		height="$width"
	fi
elif [ "$2" = "225" ]; then
	resize="-filter triangle -resize"
	width="$2"
	if [ "$1" = "43" ]; then
		height="168"
	elif [ "$1" = "32" ]; then
		height="150"
	elif [ "$1" = "53" ]; then
		height="135"
	elif [ "$1" = "2" ]; then
		height="112"
	elif [ "$1" = "1" ]; then
		height="$width"
	fi
else
	echo "argument 2 must be 16, 36, 75, or 225"
fi
	
if [ -z "$height" ]; then
	echo "argument 1 must be '43', '32', '53', '2', or '1'"
elif [ -n "$width" ]; then
	
	echo "running for $width x $height"

	rm -f *.png;

	#uses ImageMagick
	for filename in `find . -regex ".*.svg"`; do
	convert -background none $filename ${resize} ${width}x${height}! ${filename%svg}png;
	#filter box
	#convert -background none $filename -filter triangle -interpolative-resize ${width}x${height}! -blur 0x.3 -raise 1 thumbnail.png;
	#convert thumbnail.png -fill gray50 -colorize 100% -raise 1 -normalize -blur 0x4 overlay.png;
	#convert thumbnail.png overlay.png -compose hardlight -composite ${filename%svg}png;
	done
	#rm thumbnail.png overlay.png;

	echo "PNGcrush-ing"

	mkdir crush${width}
	for filename in `find . -regex ".*.png"`; do
	pngcrush -q -rem alla -rem text $filename crush${width}/${filename:2}
	done

	mv -v crush${width}/* ../../png/${width}/${PWD##*/};

	rm -Rf crush${width};
	rm *.png;

	echo "Generated $width x $height in ${PWD##*/}"
fi