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#!/usr/bin/python
"""Post-subset changes for Roboto for Android."""
import sys
from fontTools import ttLib
def output_protruding_glyphs(font, ymin, ymax, file_name):
"""Outputs all glyphs going outside the specified vertical range."""
protruding_glyphs = []
glyph_dict = font['glyf'].glyphs
for glyph_name, glyph in glyph_dict.items():
if glyph.numberOfContours == 0:
continue
if glyph.yMin < ymin or glyph.yMax > ymax:
protruding_glyphs.append(glyph_name)
if protruding_glyphs:
print "Protruding glyphs in %s:" % file_name,
print ', '.join(sorted(protruding_glyphs))
YMIN = -555
YMAX = 2163
def main(argv):
"""Forces yMin/yMax values and generates a new font."""
source_font_name = argv[1]
target_font_name = argv[2]
font = ttLib.TTFont(source_font_name, recalcBBoxes=False)
head = font['head']
head.yMin = YMIN
head.yMax = YMAX
output_protruding_glyphs(font, YMIN, YMAX, source_font_name)
font.save(target_font_name)
# Make sure the values are set correctly
font = ttLib.TTFont(target_font_name, recalcBBoxes=False)
head = font['head']
assert head.yMin == YMIN and head.yMax == YMAX
if __name__ == "__main__":
main(sys.argv)
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