mirror of https://github.com/zulip/zulip.git
124 lines
3.8 KiB
Python
Executable File
124 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
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from __future__ import print_function
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import os
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import glob
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import shutil
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import subprocess
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import json
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import sys
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import xml.etree.ElementTree as ET
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from six import unichr
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from PIL import Image, ImageDraw, ImageFont
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ZULIP_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), '../../../')
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EMOJI_DUMP_DIR_PATH = os.path.join(ZULIP_PATH, 'var', 'emoji_dump')
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class MissingGlyphError(Exception):
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pass
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def color_font(code_point, code_point_to_fname_map):
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in_name = os.path.join(EMOJI_DUMP_DIR_PATH, 'bitmaps/strike0/{}.png'.format(
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code_point_to_fname_map[int(code_point, 16)]
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))
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out_name = 'out/unicode/{}.png'.format(code_point)
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try:
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shutil.copyfile(in_name, out_name)
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except IOError:
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raise MissingGlyphError('code_point: %r' % (code_point))
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def bw_font(name, code_point):
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char = unichr(int(code_point, 16))
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AA_SCALE = 8
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SIZE = (68, 68)
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BIG_SIZE = tuple([x * AA_SCALE for x in SIZE])
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# AndroidEmoji.ttf is from
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# https://android.googlesource.com/platform/frameworks/base.git/+/master/data/fonts/AndroidEmoji.ttf
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# commit 07912f876c8639f811b06831465c14c4a3b17663
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font = ImageFont.truetype('AndroidEmoji.ttf', 65 * AA_SCALE)
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image = Image.new('RGBA', BIG_SIZE)
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draw = ImageDraw.Draw(image)
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draw.text((0, 0), char, font=font, fill='black')
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image.resize(SIZE, Image.ANTIALIAS).save(
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'out/unicode/{}.png'.format(code_point), 'PNG'
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)
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def code_point_to_file_name_map(ttx):
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"""Given the NotoColorEmoji.ttx file, parse it to generate a map from
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codepoint to filename (a la glyph0****.png)
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"""
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result = {}
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xml = ET.parse(ttx)
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for elem in xml.find("*cmap_format_12"): # type: ignore # https://github.com/python/typeshed/pull/254
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code_point = int(elem.attrib["code"], 16)
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fname = elem.attrib["name"]
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result[code_point] = fname
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return result
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def main():
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# ttx is in the fonttools pacakge, the -z option is only on master
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# https://github.com/behdad/fonttools/
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# NotoColorEmoji.tff is from
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# https://android.googlesource.com/platform/external/noto-fonts/+/marshmallow-release/other/NotoColorEmoji.ttf
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# note that you have to run it though base64 -D before being able
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# to use it, since it downloads from that page base64 encoded
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# this is so we don't accidently leave ttx files from previous
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# runs of this script lying around
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for fname in glob.glob(os.path.join(EMOJI_DUMP_DIR_PATH, "*ttx*")):
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os.remove(fname)
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# check if directory `var/emoji_dump` exists
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subprocess.check_call(['mkdir', '-p', EMOJI_DUMP_DIR_PATH])
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subprocess.call('ttx -v -z extfile -d {} NotoColorEmoji.ttf'.format(EMOJI_DUMP_DIR_PATH), shell=True)
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try:
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shutil.rmtree('out')
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except OSError:
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pass
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os.mkdir('out')
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os.mkdir('out/unicode')
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emoji_map = json.load(open('emoji_map.json'))
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# Fix data problem with red/blue cars being inaccurate.
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emoji_map['blue_car'] = emoji_map['red_car']
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emoji_map['red_car'] = emoji_map['oncoming_automobile']
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failed = False
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code_point_to_fname_map = code_point_to_file_name_map(os.path.join(EMOJI_DUMP_DIR_PATH, "NotoColorEmoji.ttx"))
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for name, code_point in emoji_map.items():
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try:
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color_font(code_point, code_point_to_fname_map)
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except MissingGlyphError:
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try:
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bw_font(name, code_point)
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except Exception as e:
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print(e)
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print('Missing {}, {}'.format(name, code_point))
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failed = True
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continue
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os.symlink(
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'unicode/{}.png'.format(code_point),
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'out/{}.png'.format(name)
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)
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if failed:
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print("Errors dumping emoji!")
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sys.exit(1)
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if __name__ == "__main__":
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main()
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