108 lines
3.1 KiB
Python
108 lines
3.1 KiB
Python
'''
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svgrender
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=========
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Calls the Inkscape command line to render svg files to png. A link to inkscape
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should be on your PATH.
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> svgrender svg_file scales <flags>
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scales:
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One or more integers. Each integer will be the size of one output file.
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flags:
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--destination:
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A path to a directory where the png files should be saved. By default,
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they go to the same folder as the svg file.
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--y:
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By default, the scales control the width of the output image.
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Pass this if you want the scales to control the height.
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--basename-only:
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By default, the png filenames will have suffixes like _{scale}.
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Pass this if you want the png to have the same name as the svg file.
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Naturally, this only works if you're only using a single scale.
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'''
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import argparse
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import glob
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import os
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import sys
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from voussoirkit import betterhelp
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from voussoirkit import pathclass
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from voussoirkit import winwhich
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from voussoirkit import vlogging
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log = vlogging.getLogger(__name__, 'svgrender')
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def svgrender(filepath, scales, destination, scale_suffix=True, axis='x'):
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if isinstance(scales, int):
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scales = [scales]
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elif isinstance(scales, (list, tuple)):
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pass
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else:
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raise TypeError(scales)
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svg_path = pathclass.Path(filepath)
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svg_path.assert_is_file()
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if destination is None:
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destination = svg_path.parent
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else:
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destination = pathclass.Path(destination)
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destination.assert_is_directory()
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if axis == 'x':
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axis = '--export-width={s}'
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else:
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axis = '--export-height={s}'
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for scalar in scales:
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png_name = svg_path.replace_extension('').basename
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if scale_suffix:
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png_name += '_%d' % scalar
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png_path = destination.with_child(png_name).add_extension('png')
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dimension = axis.format(s=scalar)
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print(png_path.absolute_path)
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inkscape = winwhich.which('inkscape')
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command = inkscape + ' "{svg}" --export-png="{png}" {dimension} --export-area-page'
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command = command.format(
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svg=svg_path.absolute_path,
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png=png_path.absolute_path,
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dimension=dimension,
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)
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log.debug(command)
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status = os.system(command)
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if status:
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print('Uh oh...')
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def svgrender_argparse(args):
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svg_paths = glob.glob(args.svg_filepath)
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scales = [int(x) for x in args.scales]
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for svg_path in svg_paths:
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svgrender(
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svg_path,
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scales,
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destination=args.destination,
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scale_suffix=args.scale_suffix,
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axis='y' if args.y else 'x',
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)
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return 0
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@vlogging.main_decorator
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def main(argv):
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('svg_filepath')
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parser.add_argument('scales', nargs='+')
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parser.add_argument('--destination', default=None)
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parser.add_argument('--y', dest='y', action='store_true')
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parser.add_argument('--basename_only', '--basename-only', dest='scale_suffix', action='store_false')
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parser.set_defaults(func=svgrender_argparse)
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return betterhelp.single_main(argv, parser, __doc__)
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if __name__ == '__main__':
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main(sys.argv[1:])
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