mirror of
https://github.com/scratchfoundation/scratchjr.git
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104 lines
3 KiB
Python
104 lines
3 KiB
Python
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#!/usr/bin/env python
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import getopt
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import os
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import pysvg.parser
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import shutil
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from subprocess import Popen, PIPE
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import sys
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from subprocess import call
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# Converts the svglibrary assets to png.
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# This script depends on the rsvg-convert to perform the conversion.
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def main(argv):
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rsvgConvert = "/usr/bin/rsvg-convert"
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localRsvgConvert = "/usr/local/bin/rsvg-convert"
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imConvert = "/usr/bin/convert"
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localImConvert = "/usr/local/bin/convert"
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svgDirectory = ''
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pngDirectory = ''
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if not os.path.isfile(rsvgConvert):
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if os.path.isfile(localRsvgConvert):
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rsvgConvert = localRsvgConvert
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else:
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print 'You must install librsvg2-bin to build'
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sys.exit(1)
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if not os.path.isfile(imConvert):
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if os.path.isfile(localImConvert):
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imConvert = localImConvert
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else:
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print 'You must install ImageMagick to build'
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sys.exit(1)
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try:
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opts, args = getopt.getopt(argv,"hi:o:",["input=","output="])
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except getopt.GetoptError:
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print 'convert-svg-to-png.py -i <svgDirectory> -o <pngDirectory>'
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sys.exit(2)
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for opt, arg in opts:
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if opt == '-h':
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print 'convert-svg-to-png.py -i <svgDirectory> -o <pngDirectory>'
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sys.exit()
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elif opt in ("-i", "--input"):
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svgDirectory = arg.lstrip()
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elif opt in ("-o", "--output"):
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pngDirectory = arg.lstrip()
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print 'Input svg directory is ' + svgDirectory
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print 'Output png directory is ' + pngDirectory
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MAX_WIDTH = 180
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MAX_HEIGHT = 140
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nullout = open(os.devnull,'wb')
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count = 0
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for i in os.listdir(svgDirectory):
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tokens = i.split(".")
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fname = tokens[0]
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pngname = fname + ".png"
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inputFile = svgDirectory + "/" + i
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outputFile = pngDirectory + "/" + pngname
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# Handle large PNGs and other files
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if tokens[-1] == "png":
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# Downscale with ImageMagick
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call([imConvert, inputFile, "-resize", '%ix%i' % (MAX_WIDTH, MAX_HEIGHT), outputFile])
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continue
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elif tokens[-1] != "svg":
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# Don't do any processing
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continue
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# Handle SVGs
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# hide stdout because pysvg.parser.parse spits out spurious warnings
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temp = sys.stdout
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sys.stdout = nullout
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svg = pysvg.parser.parse(svgDirectory + i)
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sys.stdout = temp
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svgHeight = float(svg.get_height()[:-2])
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svgWidth = float(svg.get_width()[:-2])
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ratio = svgWidth / svgHeight
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heightBoundByWidth = MAX_WIDTH / ratio
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if heightBoundByWidth > MAX_HEIGHT:
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call([rsvgConvert, "-h", str(MAX_HEIGHT), inputFile, "-o", outputFile])
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else:
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call([rsvgConvert, "-w", str(MAX_WIDTH), inputFile, "-o", outputFile])
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count = count + 1
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nullout.close()
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print 'Converted {0} svgs to png'.format(count)
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if __name__ == "__main__":
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main(sys.argv[1:])
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