#!/usr/bin/env python
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from __future__ import print_function, division, absolute_import
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import argparse
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import logging
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import os
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import sys
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from cu2qu.pens import Cu2QuPen
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from fontTools import configLogger
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from fontTools.misc.cliTools import makeOutputFileName
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from fontTools.pens.ttGlyphPen import TTGlyphPen
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from fontTools.ttLib import TTFont, newTable
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log = logging.getLogger()
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# default approximation error, measured in UPEM
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MAX_ERR = 1.0
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# default 'post' table format
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POST_FORMAT = 2.0
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# assuming the input contours' direction is correctly set (counter-clockwise),
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# we just flip it to clockwise
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REVERSE_DIRECTION = True
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def glyphs_to_quadratic(
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glyphs, max_err=MAX_ERR, reverse_direction=REVERSE_DIRECTION):
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quadGlyphs = {}
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for gname in glyphs.keys():
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glyph = glyphs[gname]
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ttPen = TTGlyphPen(glyphs)
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cu2quPen = Cu2QuPen(ttPen, max_err,
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reverse_direction=reverse_direction)
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glyph.draw(cu2quPen)
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quadGlyphs[gname] = ttPen.glyph()
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return quadGlyphs
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def otf_to_ttf(ttFont, post_format=POST_FORMAT, **kwargs):
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assert ttFont.sfntVersion == "OTTO"
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assert "CFF " in ttFont
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glyphOrder = ttFont.getGlyphOrder()
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ttFont["loca"] = newTable("loca")
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ttFont["glyf"] = glyf = newTable("glyf")
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glyf.glyphOrder = glyphOrder
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glyf.glyphs = glyphs_to_quadratic(ttFont.getGlyphSet(), **kwargs)
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del ttFont["CFF "]
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glyf.compile(ttFont)
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ttFont["maxp"] = maxp = newTable("maxp")
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maxp.tableVersion = 0x00010000
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maxp.maxZones = 1
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maxp.maxTwilightPoints = 0
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maxp.maxStorage = 0
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maxp.maxFunctionDefs = 0
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maxp.maxInstructionDefs = 0
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maxp.maxStackElements = 0
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maxp.maxSizeOfInstructions = 0
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maxp.maxComponentElements = max(
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len(g.components if hasattr(g, 'components') else [])
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for g in glyf.glyphs.values())
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maxp.compile(ttFont)
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post = ttFont["post"]
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post.formatType = post_format
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post.extraNames = []
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post.mapping = {}
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post.glyphOrder = glyphOrder
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try:
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post.compile(ttFont)
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except OverflowError:
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post.formatType = 3
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log.warning("Dropping glyph names, they do not fit in 'post' table.")
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ttFont.sfntVersion = "\000\001\000\000"
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def main(args=None):
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configLogger(logger=log)
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parser = argparse.ArgumentParser()
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parser.add_argument("input", nargs='+', metavar="INPUT")
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parser.add_argument("-o", "--output")
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parser.add_argument("-e", "--max-error", type=float, default=MAX_ERR)
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parser.add_argument("--post-format", type=float, default=POST_FORMAT)
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parser.add_argument(
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"--keep-direction", dest='reverse_direction', action='store_false')
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parser.add_argument("--face-index", type=int, default=0)
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parser.add_argument("--overwrite", action='store_true')
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options = parser.parse_args(args)
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if options.output and len(options.input) > 1:
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if not os.path.isdir(options.output):
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parser.error("-o/--output option must be a directory when "
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"processing multiple fonts")
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for path in options.input:
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if options.output and not os.path.isdir(options.output):
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output = options.output
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else:
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output = makeOutputFileName(path, outputDir=options.output,
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extension='.ttf',
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overWrite=options.overwrite)
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font = TTFont(path, fontNumber=options.face_index)
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otf_to_ttf(font,
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post_format=options.post_format,
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max_err=options.max_error,
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reverse_direction=options.reverse_direction)
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font.save(output)
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if __name__ == "__main__":
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sys.exit(main())
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