Python subset.Subsetter方法代码示例

# 需要导入模块: from fontTools import subset [as 别名]
# 或者: from fontTools.subset import Subsetter [as 别名]
def subset_font_cmap(srcname, dstname, exclude=None, include=None, bump_version=True):

    opt = _DEFAULT_OPTIONS

    font = subset.load_font(srcname, opt)
    target_charset = set(font_data.get_cmap(font).keys())

    if include is not None:
        target_charset &= include
    if exclude is not None:
        target_charset -= exclude

    subsetter = subset.Subsetter(options=opt)
    subsetter.populate(unicodes=target_charset)
    subsetter.subset(font)

    if bump_version:
        # assume version string has 'uh' if unhinted, else hinted.
        revision, version_string = swat_license.get_bumped_version(font)
        font["head"].fontRevision = revision
        font_data.set_name_record(font, _VERSION_ID, version_string)

    subset.save_font(font, dstname, opt) 

# 需要导入模块: from fontTools import subset [as 别名]
# 或者: from fontTools.subset import Subsetter [as 别名]
def test_timing_publishes_parts(self):
        _, fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf")
        subsetpath = self.temp_path(".ttf")

        options = subset.Options()
        options.timing = True
        subsetter = subset.Subsetter(options)
        subsetter.populate(text='ABC')
        font = TTFont(fontpath)
        with CapturingLogHandler('fontTools.subset.timer', logging.DEBUG) as captor:
            captor.logger.propagate = False
            subsetter.subset(font)
            logs = captor.records
        captor.logger.propagate = True

        self.assertTrue(len(logs) > 5)
        self.assertEqual(len(logs), len([l for l in logs if 'msg' in l.args and 'time' in l.args]))
        # Look for a few things we know should happen
        self.assertTrue(filter(lambda l: l.args['msg'] == "load 'cmap'", logs))
        self.assertTrue(filter(lambda l: l.args['msg'] == "subset 'cmap'", logs))
        self.assertTrue(filter(lambda l: l.args['msg'] == "subset 'glyf'", logs)) 

# 需要导入模块: from fontTools import subset [as 别名]
# 或者: from fontTools.subset import Subsetter [as 别名]
def decompress(ttFont, **kwargs):
    """ Use the FontTools Subsetter to desubroutinize the font's CFF table.
    Any keyword arguments are passed on as options to the Subsetter.
    Skip if the font contains no subroutines.
    """
    if not has_subrs(ttFont):
        log.debug('No subroutines found; skip decompress')
        return

    from fontTools import subset

    # The FontTools subsetter modifies many tables by default; here
    # we only want to desubroutinize, so we run the subsetter on a
    # temporary copy and extract the resulting CFF table from it
    make_temp = kwargs.pop('make_temp', True)
    if make_temp:
        from io import BytesIO
        from fontTools.ttLib import TTFont, newTable

        stream = BytesIO()
        ttFont.save(stream, reorderTables=None)
        stream.flush()
        stream.seek(0)
        tmpfont = TTFont(stream)
    else:
        tmpfont = ttFont  # run subsetter on the original font

    options = subset.Options(**kwargs)
    options.desubroutinize = True
    options.notdef_outline = True
    subsetter = subset.Subsetter(options=options)
    subsetter.populate(glyphs=tmpfont.getGlyphOrder())
    subsetter.subset(tmpfont)

    if make_temp:
        # copy modified CFF table to original font
        data = tmpfont['CFF '].compile(tmpfont)
        table = newTable('CFF ')
        table.decompile(data, ttFont)
        ttFont['CFF '] = table
        tmpfont.close() 

# 需要导入模块: from fontTools import subset [as 别名]
# 或者: from fontTools.subset import Subsetter [as 别名]
def closeGlyphsOverGSUB(gsub, glyphs):
    """ Use the FontTools subsetter to perform a closure over the GSUB table
    given the initial `glyphs` (set of glyph names, str). Update the set
    in-place adding all the glyph names that can be reached via GSUB
    substitutions from this initial set.
    """
    subsetter = subset.Subsetter()
    subsetter.glyphs = glyphs
    gsub.closure_glyphs(subsetter) 

# 需要导入模块: from fontTools import subset [as 别名]
# 或者: from fontTools.subset import Subsetter [as 别名]
def subset_font(source_file, target_file, include=None, exclude=None, options=None):
    """Subsets a font file.

    Subsets a font file based on a specified character set. If only include is
    specified, only characters from that set would be included in the output
    font.  If only exclude is specified, all characters except those in that
    set will be included.  If neither is specified, the character set will
    remain the same, but inaccessible glyphs will be removed.

    Args:
      source_file: Input file name.
      target_file: Output file name
      include: The list of characters to include from the source font.
      exclude: The list of characters to exclude from the source font.
      options: A dictionary listing which options should be different from the
          default.

    Raises:
      NotImplementedError: Both include and exclude were specified.
    """
    opt = subset.Options()

    opt.name_IDs = ["*"]
    opt.name_legacy = True
    opt.name_languages = ["*"]
    opt.layout_features = ["*"]
    opt.notdef_outline = True
    opt.recalc_bounds = True
    opt.recalc_timestamp = True
    opt.canonical_order = True
    opt.drop_tables = ["+TTFA"]

    if options is not None:
        for name, value in options.items():
            setattr(opt, name, value)

    if include is not None:
        if exclude is not None:
            raise NotImplementedError(
                "Subset cannot include and exclude a set at the same time."
            )
        target_charset = include
    else:
        if exclude is None:
            exclude = []
        source_charset = coverage.character_set(source_file)
        target_charset = source_charset - set(exclude)

    font = subset.load_font(source_file, opt)
    subsetter = subset.Subsetter(options=opt)
    subsetter.populate(unicodes=target_charset)
    subsetter.subset(font)
    subset.save_font(font, target_file, opt) 

# 需要导入模块: from fontTools import subset [as 别名]
# 或者: from fontTools.subset import Subsetter [as 别名]
def makeKit(font_path):
  # put the result into a directory named file_name.kit
  dest_dir = os.path.splitext(font_path)[0] + '.kit'
  if os.path.isdir(dest_dir):
    print 'FAILURE: dest %s already exists' % dest_dir
    return False
  os.makedirs(dest_dir)
  print 'Making a kit for %s in %s' % (font_path, dest_dir)

  # crack open the font
  # equivalent  pyftsubset /tmp/Lobster-Regular.ttf --unicodes='*' --obfuscate_names
  options = subset.Options()
  with contextlib.closing(subset.load_font(font_path, options)) as font:
    unicodes = []
    for t in font['cmap'].tables:
      if t.isUnicode():
        unicodes.extend(t.cmap.keys())
    options.unicodes = unicodes

    # mangle 'name' so the font can't be installed
    options.obfuscate_names

    # apply our subsetting, most notably trashing 'name'
    subsetter = subset.Subsetter(options=options)
    subsetter.populate()

    # write [ot]tf, woff, and woff2 editions with 'name' mangled
    font_name_noext = os.path.splitext(os.path.basename(font_path))[0]
    font_ext = os.path.splitext(os.path.basename(font_path))[1]
    for fmt in [font_ext, '.woff', '.woff2']:
      dest_file = os.path.join(dest_dir, font_name_noext + fmt)
      options.flavor = None
      if fmt.startswith('.woff'):
        options.flavor = fmt[1:]
      print 'Writing %s' % dest_file
      with open(dest_file, 'wb') as f:
        subset.save_font(font, f, options)

    # write a sample somewhat (no early Android, IE) bulletproof css
    dest_file = os.path.join(dest_dir, 'bulletproof.css')
    os2 = font['OS/2']
    font_style = 'normal'
    if os2.fsSelection & 1:
      font_style = 'italic'
    with open(dest_file, 'w') as f:
      f.write("@font-face {\n")
      f.write("  font-family: '%s';\n" % font_name_noext)
      f.write("  font-style: %s;\n" % font_style)
      f.write("  font-weight: %d;\n" % os2.usWeightClass)
      f.write("  src:\n")
      f.write("    url('./%s.woff2') format('woff2'),\n" % font_name_noext)
      f.write("    url('./%s.woff') format('woff'),\n" % font_name_noext)
      if font_ext == '.otf':
        f.write("    url('./%s.otf') format('opentype')" % font_name_noext)
      else:
        f.write("    url('./%s.ttf') format('truetype')" % font_name_noext)
      f.write(";\n")
      f.write("}\n")

  return True 

# 需要导入模块: from fontTools import subset [as 别名]
# 或者: from fontTools.subset import Subsetter [as 别名]
def subset_otf_from_ufo(self, otf_path, ufo):
        """Subset a font using "Keep Glyphs" custom parameter and export flags as set
        by glyphsLib.

        "Export Glyphs" and "Remove Glyphs" are currently not supported:
        https://github.com/googlei18n/glyphsLib/issues/295.
        """
        from fontTools import subset

        # we must exclude from the final UFO glyphOrder all the glyphs that were not
        # exported to OTF because included in 'public.skipExportGlyphs'
        skip_export_glyphs = set(ufo.lib.get("public.skipExportGlyphs", ()))
        exported_glyphs = dict.fromkeys(
            g for g in ufo.keys() if g not in skip_export_glyphs
        )
        ufo_order = makeOfficialGlyphOrder(exported_glyphs, glyphOrder=ufo.glyphOrder)
        # ufo2ft always inserts a ".notdef" glyph as the first glyph
        if ".notdef" not in exported_glyphs:
            ufo_order.insert(0, ".notdef")
        ot_order = TTFont(otf_path).getGlyphOrder()
        assert ot_order[0] == ".notdef"
        assert len(ufo_order) == len(ot_order)

        for key in (KEEP_GLYPHS_NEW_KEY, KEEP_GLYPHS_OLD_KEY):
            keep_glyphs_list = ufo.lib.get(key)
            if keep_glyphs_list is not None:
                keep_glyphs = set(keep_glyphs_list)
                break
        else:
            keep_glyphs = None

        include = []
        for source_name, binary_name in zip(ufo_order, ot_order):
            if keep_glyphs and source_name not in keep_glyphs:
                continue

            if source_name in ufo:
                exported = ufo[source_name].lib.get(GLYPH_EXPORT_KEY, True)
                if not exported:
                    continue

            include.append(binary_name)

        # copied from nototools.subset
        opt = subset.Options()
        opt.name_IDs = ["*"]
        opt.name_legacy = True
        opt.name_languages = ["*"]
        opt.layout_features = ["*"]
        opt.notdef_outline = True
        opt.recalc_bounds = True
        opt.recalc_timestamp = True
        opt.canonical_order = True

        opt.glyph_names = True

        font = subset.load_font(otf_path, opt, lazy=False)
        subsetter = subset.Subsetter(options=opt)
        subsetter.populate(glyphs=include)
        subsetter.subset(font)
        subset.save_font(font, otf_path, opt)