Python Font.kerning[kern]方法代码示例

# 需要导入模块: from defcon import Font [as 别名]
# 或者: from defcon.Font import kerning[kern] [as 别名]
def merge(args):
    """Merges Arabic and Latin fonts together, and messages the combined font a
    bit. Returns the combined font."""

    ufo = Font(args.arabicfile)

    latin = Font(args.latinfile)
    # Parse the GlyphOrderAndAliasDB file for Unicode values and production
    # glyph names of the Latin glyphs.
    goadb = GOADBParser(os.path.dirname(args.latinfile) + "/../GlyphOrderAndAliasDB")

    ufo.lib[POSTSCRIPT_NAMES] = {}

    # Generate production glyph names for Arabic glyphs, in case it differs
    # from working names. This will be used by ufo2ft to set the final glyph
    # names in the font file.
    for glyph in ufo:
        if glyph.unicode is not None:
            if glyph.unicode < 0xffff:
                postName = "uni%04X" % glyph.unicode
            else:
                postName = "u%06X" % glyph.unicode
            if postName != glyph.name:
                ufo.lib[POSTSCRIPT_NAMES][glyph.name] = postName

    # Populate the font’s feature text, we keep our main feature file out of
    # the UFO to share it between the fonts.
    features = ufo.features
    with open(args.feature_file) as feafile:
        fea = feafile.read()
        # Set Latin language system, ufo2ft will use it when generating kern
        # feature.
        features.text += fea.replace("#{languagesystems}", "languagesystem latn dflt;")
    features.text += generateStyleSets(ufo)

    for glyph in latin:
        if glyph.name in goadb.encodings:
            uni = goadb.encodings[glyph.name]
            # Source Sans Pro has different advance widths for space and NBSP
            # glyphs, so we drop the later, and map both Unicode characters to
            # the space glyph.
            if uni == 0x00A0: # NBSP
                continue
            glyph.unicode = uni
            if uni == 0x0020: # space
                glyph.unicodes = glyph.unicodes + [0x00A0]

    glyphs, components = collectGlyphs(latin, args.latin_subset)

    counter = Counter(components)
    uniqueComponents = set()
    for name in counter:
        if name not in glyphs:
            latin[name].unicode = None
        if counter[name] == 1:
            uniqueComponents.add(name)
        else:
            glyphs.add(name)

    # Set Latin production names
    ufo.lib[POSTSCRIPT_NAMES].update(goadb.names)

    # Copy Latin glyphs.
    for name in glyphs:
        glyph = latin[name]
        for component in glyph.components:
            if component.baseGlyph in uniqueComponents:
                glyph.decomposeComponent(component)
        # Remove anchors from spacing marks, otherwise ufo2ft will give them
        # mark glyph class which will cause HarfBuzz to zero their width.
        if glyph.unicode and unicodedata.category(unichr(glyph.unicode)) in ("Sk", "Lm"):
            for anchor in glyph.anchors:
                glyph.removeAnchor(anchor)
        # Add Arabic anchors to the dotted circle, we use an offset of 100
        # units because the Latin anchors are too close to the glyph.
        offset = 100
        if glyph.unicode == 0x25CC:
            for anchor in glyph.anchors:
                if anchor.name == "aboveLC":
                    glyph.appendAnchor(dict(name="markAbove", x=anchor.x, y=anchor.y + offset))
                    glyph.appendAnchor(dict(name="hamzaAbove", x=anchor.x, y=anchor.y + offset))
                if anchor.name == "belowLC":
                    glyph.appendAnchor(dict(name="markBelow", x=anchor.x, y=anchor.y - offset))
                    glyph.appendAnchor(dict(name="hamzaBelow", x=anchor.x, y=anchor.y - offset))
        # Break loudly if we have duplicated glyph in Latin and Arabic.
        # TODO should check duplicated Unicode values as well
        assert glyph.name not in ufo, glyph.name
        ufo.insertGlyph(glyph)

    # Copy kerning and groups.
    for group in latin.groups:
        ufo.groups[group] = latin.groups[group]
    for kern in latin.kerning:
        ufo.kerning[kern] = latin.kerning[kern]

    # We don’t set these in the Arabic font, so we just copy the Latin’s.
    for attr in ("xHeight", "capHeight"):
        value = getattr(latin.info, attr)
        if value is not None:
            setattr(ufo.info, attr, getattr(latin.info, attr))
#.........这里部分代码省略.........