| import io |
| import fontTools.ttLib.tables.otBase |
| from fontTools.misc.testTools import getXML, stripVariableItemsFromTTX |
| from fontTools.misc.textTools import tobytes, tostr |
| from fontTools import subset |
| from fontTools.fontBuilder import FontBuilder |
| from fontTools.pens.ttGlyphPen import TTGlyphPen |
| from fontTools.ttLib import TTFont, newTable |
| from fontTools.ttLib.tables import otTables as ot |
| from fontTools.misc.loggingTools import CapturingLogHandler |
| from fontTools.subset.svg import etree |
| import difflib |
| import logging |
| import os |
| import shutil |
| import sys |
| import tempfile |
| import unittest |
| import pathlib |
| import pytest |
| |
| |
| class SubsetTest: |
| @classmethod |
| def setup_class(cls): |
| cls.tempdir = None |
| cls.num_tempfiles = 0 |
| |
| @classmethod |
| def teardown_class(cls): |
| if cls.tempdir: |
| shutil.rmtree(cls.tempdir, ignore_errors=True) |
| |
| @staticmethod |
| def getpath(*testfile): |
| path, _ = os.path.split(__file__) |
| return os.path.join(path, "data", *testfile) |
| |
| @classmethod |
| def temp_path(cls, suffix): |
| if not cls.tempdir: |
| cls.tempdir = tempfile.mkdtemp() |
| cls.num_tempfiles += 1 |
| return os.path.join(cls.tempdir, "tmp%d%s" % (cls.num_tempfiles, suffix)) |
| |
| @staticmethod |
| def read_ttx(path): |
| with open(path, "r", encoding="utf-8") as f: |
| ttx = f.read() |
| # don't care whether TTF or OTF, thus strip sfntVersion as well |
| return stripVariableItemsFromTTX(ttx, sfntVersion=True).splitlines(True) |
| |
| def expect_ttx(self, font, expected_ttx, tables=None): |
| path = self.temp_path(suffix=".ttx") |
| font.saveXML(path, tables=tables) |
| actual = self.read_ttx(path) |
| expected = self.read_ttx(expected_ttx) |
| if actual != expected: |
| for line in difflib.unified_diff( |
| expected, actual, fromfile=expected_ttx, tofile=path |
| ): |
| sys.stdout.write(line) |
| pytest.fail("TTX output is different from expected") |
| |
| def compile_font(self, path, suffix): |
| savepath = self.temp_path(suffix=suffix) |
| font = TTFont(recalcBBoxes=False, recalcTimestamp=False) |
| font.importXML(path) |
| font.save(savepath, reorderTables=None) |
| return savepath |
| |
| # ----- |
| # Tests |
| # ----- |
| |
| def test_layout_scripts(self): |
| fontpath = self.compile_font(self.getpath("layout_scripts.ttx"), ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--glyphs=*", |
| "--layout-features=*", |
| "--layout-scripts=latn,arab.URD,arab.dflt", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("expect_layout_scripts.ttx"), ["GPOS", "GSUB"] |
| ) |
| |
| def test_no_notdef_outline_otf(self): |
| fontpath = self.compile_font(self.getpath("TestOTF-Regular.ttx"), ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--no-notdef-outline", |
| "--gids=0", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("expect_no_notdef_outline_otf.ttx"), ["CFF "] |
| ) |
| |
| def test_no_notdef_outline_cid(self): |
| fontpath = self.compile_font(self.getpath("TestCID-Regular.ttx"), ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--no-notdef-outline", |
| "--gids=0", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("expect_no_notdef_outline_cid.ttx"), ["CFF "] |
| ) |
| |
| def test_no_notdef_outline_ttf(self): |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [ |
| fontpath, |
| "--no-notdef-outline", |
| "--gids=0", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_no_notdef_outline_ttf.ttx"), |
| ["glyf", "hmtx"], |
| ) |
| |
| def test_subset_ankr(self): |
| fontpath = self.compile_font(self.getpath("TestANKR.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=one", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_ankr.ttx"), ["ankr"]) |
| |
| def test_subset_ankr_remove(self): |
| fontpath = self.compile_font(self.getpath("TestANKR.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=two", "--output-file=%s" % subsetpath]) |
| assert "ankr" not in TTFont(subsetpath) |
| |
| def test_subset_bsln_format_0(self): |
| fontpath = self.compile_font(self.getpath("TestBSLN-0.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=one", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_bsln_0.ttx"), ["bsln"]) |
| |
| def test_subset_bsln_format_0_from_format_1(self): |
| # TestBSLN-1 defines the ideographic baseline to be the font's default, |
| # and specifies that glyphs {.notdef, zero, one, two} use the roman |
| # baseline instead of the default ideographic baseline. As we request |
| # a subsetted font with {zero, one} and the implicit .notdef, all |
| # glyphs in the resulting font use the Roman baseline. In this case, |
| # we expect a format 0 'bsln' table because it is the most compact. |
| fontpath = self.compile_font(self.getpath("TestBSLN-1.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [fontpath, "--unicodes=U+0030-0031", "--output-file=%s" % subsetpath] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_bsln_0.ttx"), ["bsln"]) |
| |
| def test_subset_bsln_format_1(self): |
| # TestBSLN-1 defines the ideographic baseline to be the font's default, |
| # and specifies that glyphs {.notdef, zero, one, two} use the roman |
| # baseline instead of the default ideographic baseline. We request |
| # a subset where the majority of glyphs use the roman baseline, |
| # but one single glyph (uni2EA2) is ideographic. In the resulting |
| # subsetted font, we expect a format 1 'bsln' table whose default |
| # is Roman, but with an override that uses the ideographic baseline |
| # for uni2EA2. |
| fontpath = self.compile_font(self.getpath("TestBSLN-1.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [fontpath, "--unicodes=U+0030-0031,U+2EA2", "--output-file=%s" % subsetpath] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_bsln_1.ttx"), ["bsln"]) |
| |
| def test_subset_bsln_format_2(self): |
| # The 'bsln' table in TestBSLN-2 refers to control points in glyph 'P' |
| # for defining its baselines. Therefore, the subsetted font should |
| # include this glyph even though it is not requested explicitly. |
| fontpath = self.compile_font(self.getpath("TestBSLN-2.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=one", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_bsln_2.ttx"), ["bsln"]) |
| |
| def test_subset_bsln_format_2_from_format_3(self): |
| # TestBSLN-3 defines the ideographic baseline to be the font's default, |
| # and specifies that glyphs {.notdef, zero, one, two, P} use the roman |
| # baseline instead of the default ideographic baseline. As we request |
| # a subsetted font with zero and the implicit .notdef and P for |
| # baseline measurement, all glyphs in the resulting font use the Roman |
| # baseline. In this case, we expect a format 2 'bsln' table because it |
| # is the most compact encoding. |
| fontpath = self.compile_font(self.getpath("TestBSLN-3.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--unicodes=U+0030", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_bsln_2.ttx"), ["bsln"]) |
| |
| def test_subset_bsln_format_3(self): |
| # TestBSLN-3 defines the ideographic baseline to be the font's default, |
| # and specifies that glyphs {.notdef, zero, one, two} use the roman |
| # baseline instead of the default ideographic baseline. We request |
| # a subset where the majority of glyphs use the roman baseline, |
| # but one single glyph (uni2EA2) is ideographic. In the resulting |
| # subsetted font, we expect a format 1 'bsln' table whose default |
| # is Roman, but with an override that uses the ideographic baseline |
| # for uni2EA2. |
| fontpath = self.compile_font(self.getpath("TestBSLN-3.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [fontpath, "--unicodes=U+0030-0031,U+2EA2", "--output-file=%s" % subsetpath] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_bsln_3.ttx"), ["bsln"]) |
| |
| def test_subset_clr(self): |
| fontpath = self.compile_font(self.getpath("TestCLR-Regular.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=smileface", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_keep_colr.ttx"), |
| ["GlyphOrder", "hmtx", "glyf", "COLR", "CPAL"], |
| ) |
| |
| def test_subset_gvar(self): |
| fontpath = self.compile_font(self.getpath("TestGVAR.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [fontpath, "--unicodes=U+002B,U+2212", "--output-file=%s" % subsetpath] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_keep_gvar.ttx"), |
| ["GlyphOrder", "avar", "fvar", "gvar", "name"], |
| ) |
| |
| def test_subset_gvar_notdef_outline(self): |
| fontpath = self.compile_font(self.getpath("TestGVAR.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [ |
| fontpath, |
| "--unicodes=U+0030", |
| "--notdef_outline", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_keep_gvar_notdef_outline.ttx"), |
| ["GlyphOrder", "avar", "fvar", "gvar", "name"], |
| ) |
| |
| def test_subset_lcar_remove(self): |
| fontpath = self.compile_font(self.getpath("TestLCAR-0.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=one", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| assert "lcar" not in subsetfont |
| |
| def test_subset_lcar_format_0(self): |
| fontpath = self.compile_font(self.getpath("TestLCAR-0.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--unicodes=U+FB01", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_lcar_0.ttx"), ["lcar"]) |
| |
| def test_subset_lcar_format_1(self): |
| fontpath = self.compile_font(self.getpath("TestLCAR-1.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--unicodes=U+FB01", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_lcar_1.ttx"), ["lcar"]) |
| |
| def test_subset_math(self): |
| fontpath = self.compile_font(self.getpath("TestMATH-Regular.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [ |
| fontpath, |
| "--unicodes=U+0041,U+0028,U+0302,U+1D400,U+1D435", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_keep_math.ttx"), |
| ["GlyphOrder", "CFF ", "MATH", "hmtx"], |
| ) |
| |
| def test_subset_math_partial(self): |
| fontpath = self.compile_font(self.getpath("test_math_partial.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--text=A", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_math_partial.ttx"), ["MATH"]) |
| |
| def test_subset_opbd_remove(self): |
| # In the test font, only the glyphs 'A' and 'zero' have an entry in |
| # the Optical Bounds table. When subsetting, we do not request any |
| # of those glyphs. Therefore, the produced subsetted font should |
| # not contain an 'opbd' table. |
| fontpath = self.compile_font(self.getpath("TestOPBD-0.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=one", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| assert "opbd" not in subsetfont |
| |
| def test_subset_opbd_format_0(self): |
| fontpath = self.compile_font(self.getpath("TestOPBD-0.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=A", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_opbd_0.ttx"), ["opbd"]) |
| |
| def test_subset_opbd_format_1(self): |
| fontpath = self.compile_font(self.getpath("TestOPBD-1.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=A", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_opbd_1.ttx"), ["opbd"]) |
| |
| def test_subset_prop_remove_default_zero(self): |
| # If all glyphs have an AAT glyph property with value 0, |
| # the "prop" table should be removed from the subsetted font. |
| fontpath = self.compile_font(self.getpath("TestPROP.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--unicodes=U+0041", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| assert "prop" not in subsetfont |
| |
| def test_subset_prop_0(self): |
| # If all glyphs share the same AAT glyph properties, the "prop" table |
| # in the subsetted font should use format 0. |
| # |
| # Unless the shared value is zero, in which case the subsetted font |
| # should have no "prop" table at all. But that case has already been |
| # tested above in test_subset_prop_remove_default_zero(). |
| fontpath = self.compile_font(self.getpath("TestPROP.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [ |
| fontpath, |
| "--unicodes=U+0030-0032", |
| "--no-notdef-glyph", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_prop_0.ttx"), ["prop"]) |
| |
| def test_subset_prop_1(self): |
| # If not all glyphs share the same AAT glyph properties, the subsetted |
| # font should contain a "prop" table in format 1. To save space, the |
| # DefaultProperties should be set to the most frequent value. |
| fontpath = self.compile_font(self.getpath("TestPROP.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [ |
| fontpath, |
| "--unicodes=U+0030-0032", |
| "--notdef-outline", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_prop_1.ttx"), ["prop"]) |
| |
| def test_options(self): |
| # https://github.com/fonttools/fonttools/issues/413 |
| opt1 = subset.Options() |
| assert "Xyz-" not in opt1.layout_features |
| opt2 = subset.Options() |
| opt2.layout_features.append("Xyz-") |
| assert "Xyz-" in opt2.layout_features |
| assert "Xyz-" not in opt1.layout_features |
| |
| def test_google_color(self): |
| fontpath = self.compile_font(self.getpath("google_color.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--gids=0,1", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| assert "CBDT" in subsetfont |
| assert "CBLC" in subsetfont |
| assert "x" in subsetfont["CBDT"].strikeData[0] |
| assert "y" not in subsetfont["CBDT"].strikeData[0] |
| |
| def test_google_color_all(self): |
| fontpath = self.compile_font(self.getpath("google_color.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--unicodes=*", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| assert "x" in subsetfont["CBDT"].strikeData[0] |
| assert "y" in subsetfont["CBDT"].strikeData[0] |
| |
| def test_sbix(self): |
| fontpath = self.compile_font(self.getpath("sbix.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--gids=0,1", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_sbix.ttx"), ["sbix"]) |
| |
| def test_varComposite(self): |
| fontpath = self.getpath("..", "..", "ttLib", "data", "varc-ac00-ac01.ttf") |
| origfont = TTFont(fontpath) |
| assert len(origfont.getGlyphOrder()) == 6 |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--unicodes=ac00", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| assert len(subsetfont.getGlyphOrder()) == 4 |
| subset.main([fontpath, "--unicodes=ac01", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| assert len(subsetfont.getGlyphOrder()) == 5 |
| |
| def test_timing_publishes_parts(self): |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".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: |
| subsetter.subset(font) |
| logs = captor.records |
| |
| assert len(logs) > 5 |
| assert 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 |
| assert filter(lambda l: l.args["msg"] == "load 'cmap'", logs) |
| assert filter(lambda l: l.args["msg"] == "subset 'cmap'", logs) |
| assert filter(lambda l: l.args["msg"] == "subset 'glyf'", logs) |
| |
| def test_passthrough_tables(self): |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf") |
| font = TTFont(fontpath) |
| unknown_tag = "ZZZZ" |
| unknown_table = newTable(unknown_tag) |
| unknown_table.data = b"\0" * 10 |
| font[unknown_tag] = unknown_table |
| font.save(fontpath) |
| |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| |
| # tables we can't subset are dropped by default |
| assert unknown_tag not in subsetfont |
| |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--passthrough-tables", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| |
| # unknown tables are kept if --passthrough-tables option is passed |
| assert unknown_tag in subsetfont |
| |
| def test_non_BMP_text_arg_input(self): |
| fontpath = self.compile_font( |
| self.getpath("TestTTF-Regular_non_BMP_char.ttx"), ".ttf" |
| ) |
| subsetpath = self.temp_path(".ttf") |
| text = tostr("A\U0001F6D2", encoding="utf-8") |
| |
| subset.main([fontpath, "--text=%s" % text, "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| |
| assert subsetfont["maxp"].numGlyphs == 3 |
| assert subsetfont.getGlyphOrder() == [".notdef", "A", "u1F6D2"] |
| |
| def test_non_BMP_text_file_input(self): |
| fontpath = self.compile_font( |
| self.getpath("TestTTF-Regular_non_BMP_char.ttx"), ".ttf" |
| ) |
| subsetpath = self.temp_path(".ttf") |
| text = tobytes("A\U0001F6D2", encoding="utf-8") |
| with tempfile.NamedTemporaryFile(delete=False) as tmp: |
| tmp.write(text) |
| |
| try: |
| subset.main( |
| [fontpath, "--text-file=%s" % tmp.name, "--output-file=%s" % subsetpath] |
| ) |
| subsetfont = TTFont(subsetpath) |
| finally: |
| os.remove(tmp.name) |
| |
| assert subsetfont["maxp"].numGlyphs == 3 |
| assert subsetfont.getGlyphOrder() == [".notdef", "A", "u1F6D2"] |
| |
| def test_no_hinting_CFF(self): |
| ttxpath = self.getpath("Lobster.subset.ttx") |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--no-hinting", |
| "--notdef-outline", |
| "--output-file=%s" % subsetpath, |
| "*", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("expect_no_hinting_CFF.ttx"), ["CFF "]) |
| |
| def test_desubroutinize_CFF(self): |
| ttxpath = self.getpath("Lobster.subset.ttx") |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--desubroutinize", |
| "--notdef-outline", |
| "--output-file=%s" % subsetpath, |
| "*", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("expect_desubroutinize_CFF.ttx"), ["CFF "] |
| ) |
| |
| def test_desubroutinize_hinted_subrs_CFF(self): |
| ttxpath = self.getpath("test_hinted_subrs_CFF.ttx") |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--desubroutinize", |
| "--notdef-outline", |
| "--output-file=%s" % subsetpath, |
| "*", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("test_hinted_subrs_CFF.desub.ttx"), ["CFF "] |
| ) |
| |
| def test_desubroutinize_cntrmask_CFF(self): |
| ttxpath = self.getpath("test_cntrmask_CFF.ttx") |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--desubroutinize", |
| "--notdef-outline", |
| "--output-file=%s" % subsetpath, |
| "*", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("test_cntrmask_CFF.desub.ttx"), ["CFF "] |
| ) |
| |
| def test_no_hinting_desubroutinize_CFF(self): |
| ttxpath = self.getpath("test_hinted_subrs_CFF.ttx") |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--no-hinting", |
| "--desubroutinize", |
| "--notdef-outline", |
| "--output-file=%s" % subsetpath, |
| "*", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_no_hinting_desubroutinize_CFF.ttx"), |
| ["CFF "], |
| ) |
| |
| def test_no_hinting_TTF(self): |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [ |
| fontpath, |
| "--no-hinting", |
| "--notdef-outline", |
| "--output-file=%s" % subsetpath, |
| "*", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("expect_no_hinting_TTF.ttx"), ["glyf", "maxp"] |
| ) |
| for tag in subset.Options().hinting_tables: |
| assert tag not in subsetfont |
| |
| def test_notdef_width_cid(self): |
| # https://github.com/fonttools/fonttools/pull/845 |
| fontpath = self.compile_font(self.getpath("NotdefWidthCID-Regular.ttx"), ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--no-notdef-outline", |
| "--gids=0,1", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, self.getpath("expect_notdef_width_cid.ttx"), ["CFF "] |
| ) |
| |
| def test_recalc_bounds_ttf(self): |
| ttxpath = self.getpath("TestTTF-Regular.ttx") |
| font = TTFont() |
| font.importXML(ttxpath) |
| head = font["head"] |
| bounds = [head.xMin, head.yMin, head.xMax, head.yMax] |
| |
| fontpath = self.compile_font(ttxpath, ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| |
| # by default, the subsetter does not recalculate the bounding box |
| subset.main([fontpath, "--output-file=%s" % subsetpath, "*"]) |
| head = TTFont(subsetpath)["head"] |
| assert bounds == [head.xMin, head.yMin, head.xMax, head.yMax] |
| |
| subset.main([fontpath, "--recalc-bounds", "--output-file=%s" % subsetpath, "*"]) |
| head = TTFont(subsetpath)["head"] |
| bounds = [132, 304, 365, 567] |
| assert bounds == [head.xMin, head.yMin, head.xMax, head.yMax] |
| |
| def test_recalc_bounds_otf(self): |
| ttxpath = self.getpath("TestOTF-Regular.ttx") |
| font = TTFont() |
| font.importXML(ttxpath) |
| head = font["head"] |
| bounds = [head.xMin, head.yMin, head.xMax, head.yMax] |
| |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| |
| # by default, the subsetter does not recalculate the bounding box |
| subset.main([fontpath, "--output-file=%s" % subsetpath, "*"]) |
| head = TTFont(subsetpath)["head"] |
| assert bounds == [head.xMin, head.yMin, head.xMax, head.yMax] |
| |
| subset.main([fontpath, "--recalc-bounds", "--output-file=%s" % subsetpath, "*"]) |
| head = TTFont(subsetpath)["head"] |
| bounds = [132, 304, 365, 567] |
| assert bounds == [head.xMin, head.yMin, head.xMax, head.yMax] |
| |
| def test_recalc_timestamp_ttf(self): |
| ttxpath = self.getpath("TestTTF-Regular.ttx") |
| font = TTFont() |
| font.importXML(ttxpath) |
| modified = font["head"].modified |
| fontpath = self.compile_font(ttxpath, ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| |
| # by default, the subsetter does not recalculate the modified timestamp |
| subset.main([fontpath, "--output-file=%s" % subsetpath, "*"]) |
| assert modified == TTFont(subsetpath)["head"].modified |
| |
| subset.main( |
| [fontpath, "--recalc-timestamp", "--output-file=%s" % subsetpath, "*"] |
| ) |
| assert modified < TTFont(subsetpath)["head"].modified |
| |
| def test_recalc_timestamp_otf(self): |
| ttxpath = self.getpath("TestOTF-Regular.ttx") |
| font = TTFont() |
| font.importXML(ttxpath) |
| modified = font["head"].modified |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| |
| # by default, the subsetter does not recalculate the modified timestamp |
| subset.main([fontpath, "--output-file=%s" % subsetpath, "*"]) |
| assert modified == TTFont(subsetpath)["head"].modified |
| |
| subset.main( |
| [fontpath, "--recalc-timestamp", "--output-file=%s" % subsetpath, "*"] |
| ) |
| assert modified < TTFont(subsetpath)["head"].modified |
| |
| def test_recalc_max_context(self): |
| ttxpath = self.getpath("Lobster.subset.ttx") |
| font = TTFont() |
| font.importXML(ttxpath) |
| max_context = font["OS/2"].usMaxContext |
| fontpath = self.compile_font(ttxpath, ".otf") |
| subsetpath = self.temp_path(".otf") |
| |
| # by default, the subsetter does not recalculate the usMaxContext |
| subset.main( |
| [fontpath, "--drop-tables+=GSUB,GPOS", "--output-file=%s" % subsetpath] |
| ) |
| assert max_context == TTFont(subsetpath)["OS/2"].usMaxContext |
| |
| subset.main( |
| [ |
| fontpath, |
| "--recalc-max-context", |
| "--drop-tables+=GSUB,GPOS", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| assert 0 == TTFont(subsetpath)["OS/2"].usMaxContext |
| |
| def test_retain_gids_ttf(self): |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf") |
| font = TTFont(fontpath) |
| |
| assert font["hmtx"]["A"] == (500, 132) |
| assert font["hmtx"]["B"] == (400, 132) |
| |
| assert font["glyf"]["A"].numberOfContours > 0 |
| assert font["glyf"]["B"].numberOfContours > 0 |
| |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [ |
| fontpath, |
| "--retain-gids", |
| "--output-file=%s" % subsetpath, |
| "--glyph-names", |
| "B", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| |
| assert subsetfont.getGlyphOrder() == font.getGlyphOrder()[0:3] |
| |
| hmtx = subsetfont["hmtx"] |
| assert hmtx["A"] == (0, 0) |
| assert hmtx["B"] == (400, 132) |
| |
| glyf = subsetfont["glyf"] |
| assert glyf["A"].numberOfContours == 0 |
| assert glyf["B"].numberOfContours > 0 |
| |
| def test_retain_gids_cff(self): |
| fontpath = self.compile_font(self.getpath("TestOTF-Regular.ttx"), ".otf") |
| font = TTFont(fontpath) |
| |
| assert font["hmtx"]["A"] == (500, 132) |
| assert font["hmtx"]["B"] == (400, 132) |
| assert font["hmtx"]["C"] == (500, 0) |
| |
| font["CFF "].cff[0].decompileAllCharStrings() |
| cs = font["CFF "].cff[0].CharStrings |
| assert len(cs["A"].program) > 0 |
| assert len(cs["B"].program) > 0 |
| assert len(cs["C"].program) > 0 |
| |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--retain-gids", |
| "--output-file=%s" % subsetpath, |
| "--glyph-names", |
| "B", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| |
| assert subsetfont.getGlyphOrder() == font.getGlyphOrder()[0:3] |
| |
| hmtx = subsetfont["hmtx"] |
| assert hmtx["A"] == (0, 0) |
| assert hmtx["B"] == (400, 132) |
| |
| subsetfont["CFF "].cff[0].decompileAllCharStrings() |
| cs = subsetfont["CFF "].cff[0].CharStrings |
| |
| assert cs["A"].program == ["endchar"] |
| assert len(cs["B"].program) > 0 |
| |
| def test_retain_gids_cff2(self): |
| ttx_path = self.getpath( |
| "../../varLib/data/master_ttx_varfont_otf/TestCFF2VF.ttx" |
| ) |
| fontpath = self.compile_font(ttx_path, ".otf") |
| font = TTFont(fontpath) |
| |
| assert font["hmtx"]["A"] == (600, 31) |
| assert font["hmtx"]["T"] == (600, 41) |
| |
| font["CFF2"].cff[0].decompileAllCharStrings() |
| cs = font["CFF2"].cff[0].CharStrings |
| assert len(cs["A"].program) > 0 |
| assert len(cs["T"].program) > 0 |
| |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--retain-gids", |
| "--output-file=%s" % subsetpath, |
| "T", |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| |
| assert len(subsetfont.getGlyphOrder()) == len(font.getGlyphOrder()[0:3]) |
| |
| hmtx = subsetfont["hmtx"] |
| assert hmtx["glyph00001"] == (0, 0) |
| assert hmtx["T"] == (600, 41) |
| |
| subsetfont["CFF2"].cff[0].decompileAllCharStrings() |
| cs = subsetfont["CFF2"].cff[0].CharStrings |
| assert cs["glyph00001"].program == [] |
| assert len(cs["T"].program) > 0 |
| |
| def test_HVAR_VVAR(self): |
| fontpath = self.compile_font(self.getpath("TestHVVAR.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--text=BD", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_HVVAR.ttx"), |
| ["GlyphOrder", "HVAR", "VVAR", "avar", "fvar"], |
| ) |
| |
| def test_HVAR_VVAR_retain_gids(self): |
| fontpath = self.compile_font(self.getpath("TestHVVAR.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main( |
| [fontpath, "--text=BD", "--retain-gids", "--output-file=%s" % subsetpath] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("expect_HVVAR_retain_gids.ttx"), |
| ["GlyphOrder", "HVAR", "VVAR", "avar", "fvar"], |
| ) |
| |
| def test_subset_flavor_woff(self): |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf") |
| woff_path = self.temp_path(".woff") |
| |
| subset.main( |
| [ |
| fontpath, |
| "*", |
| "--flavor=woff", |
| "--output-file=%s" % woff_path, |
| ] |
| ) |
| woff = TTFont(woff_path) |
| |
| assert woff.flavor == "woff" |
| |
| def test_subset_flavor_woff2(self): |
| # skip if brotli is not importable, required for woff2 |
| pytest.importorskip("brotli") |
| |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf") |
| woff2_path = self.temp_path(".woff2") |
| |
| subset.main( |
| [ |
| fontpath, |
| "*", |
| "--flavor=woff2", |
| "--output-file=%s" % woff2_path, |
| ] |
| ) |
| woff2 = TTFont(woff2_path) |
| |
| assert woff2.flavor == "woff2" |
| |
| def test_subset_flavor_none(self): |
| fontpath = self.compile_font(self.getpath("TestTTF-Regular.ttx"), ".ttf") |
| ttf_path = self.temp_path(".ttf") |
| |
| subset.main( |
| [ |
| fontpath, |
| "*", |
| "--output-file=%s" % ttf_path, |
| ] |
| ) |
| ttf = TTFont(ttf_path) |
| |
| assert ttf.flavor is None |
| |
| def test_subset_context_subst_format_3(self): |
| # https://github.com/fonttools/fonttools/issues/1879 |
| # Test font contains 'calt' feature with Format 3 ContextSubst lookup subtables |
| ttx = self.getpath("TestContextSubstFormat3.ttx") |
| fontpath = self.compile_font(ttx, ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--unicodes=*", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| # check all glyphs are kept via GSUB closure, no changes expected |
| self.expect_ttx(subsetfont, ttx) |
| |
| def test_cmap_prune_format12(self): |
| fontpath = self.compile_font(self.getpath("CmapSubsetTest.ttx"), ".ttf") |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "--glyphs=a", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, self.getpath("CmapSubsetTest.subset.ttx"), ["cmap"]) |
| |
| @pytest.mark.parametrize("text, n", [("!", 1), ("#", 2)]) |
| def test_GPOS_PairPos_Format2_useClass0(self, text, n): |
| # Check two things related to class 0 ('every other glyph'): |
| # 1) that it's reused for ClassDef1 when it becomes empty as the subset glyphset |
| # is intersected with the table's Coverage |
| # 2) that it is never reused for ClassDef2 even when it happens to become empty |
| # because of the subset glyphset. In this case, we don't keep a PairPosClass2 |
| # subtable if only ClassDef2's class0 survived subsetting. |
| # The test font (from Harfbuzz test suite) is constructed to trigger these two |
| # situations depending on the input subset --text. |
| # https://github.com/fonttools/fonttools/pull/2221 |
| fontpath = self.compile_font( |
| self.getpath("GPOS_PairPos_Format2_PR_2221.ttx"), ".ttf" |
| ) |
| subsetpath = self.temp_path(".ttf") |
| |
| expected_ttx = self.getpath( |
| f"GPOS_PairPos_Format2_ClassDef{n}_useClass0.subset.ttx" |
| ) |
| subset.main( |
| [ |
| fontpath, |
| f"--text='{text}'", |
| "--layout-features+=test", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx(subsetfont, expected_ttx, ["GPOS"]) |
| |
| def test_GPOS_SinglePos_prune_post_subset_no_value(self): |
| fontpath = self.compile_font( |
| self.getpath("GPOS_SinglePos_no_value_issue_2312.ttx"), ".ttf" |
| ) |
| subsetpath = self.temp_path(".ttf") |
| subset.main([fontpath, "*", "--glyph-names", "--output-file=%s" % subsetpath]) |
| subsetfont = TTFont(subsetpath) |
| self.expect_ttx( |
| subsetfont, |
| self.getpath("GPOS_SinglePos_no_value_issue_2312.subset.ttx"), |
| ["GlyphOrder", "GPOS"], |
| ) |
| |
| @pytest.mark.parametrize( |
| "installed, enabled, ok", |
| [ |
| pytest.param(True, None, True, id="installed-auto-ok"), |
| pytest.param(True, None, False, id="installed-auto-fail"), |
| pytest.param(True, True, True, id="installed-enabled-ok"), |
| pytest.param(True, True, False, id="installed-enabled-fail"), |
| pytest.param(True, False, True, id="installed-disabled"), |
| pytest.param(False, True, True, id="not_installed-enabled"), |
| pytest.param(False, False, True, id="not_installed-disabled"), |
| ], |
| ) |
| def test_harfbuzz_repacker(self, caplog, monkeypatch, installed, enabled, ok): |
| # Use a mock to test the pure-python serializer is used when uharfbuzz |
| # returns an error or is not installed |
| have_uharfbuzz = fontTools.ttLib.tables.otBase.have_uharfbuzz |
| if installed: |
| if not have_uharfbuzz: |
| pytest.skip("uharfbuzz is not installed") |
| if not ok: |
| # pretend hb.repack/repack_with_tag return an error |
| import uharfbuzz as hb |
| |
| def mock_repack(data, obj_list): |
| raise hb.RepackerError("mocking") |
| |
| monkeypatch.setattr(hb, "repack", mock_repack) |
| |
| if hasattr(hb, "repack_with_tag"): # uharfbuzz >= 0.30.0 |
| |
| def mock_repack_with_tag(tag, data, obj_list): |
| raise hb.RepackerError("mocking") |
| |
| monkeypatch.setattr(hb, "repack_with_tag", mock_repack_with_tag) |
| else: |
| if have_uharfbuzz: |
| # pretend uharfbuzz is not installed |
| monkeypatch.setattr( |
| fontTools.ttLib.tables.otBase, "have_uharfbuzz", False |
| ) |
| |
| fontpath = self.compile_font(self.getpath("harfbuzz_repacker.ttx"), ".otf") |
| subsetpath = self.temp_path(".otf") |
| args = [ |
| fontpath, |
| "--unicodes=0x53a9", |
| "--layout-features=*", |
| f"--output-file={subsetpath}", |
| ] |
| if enabled is True: |
| args.append("--harfbuzz-repacker") |
| elif enabled is False: |
| args.append("--no-harfbuzz-repacker") |
| # elif enabled is None: ... is the default |
| |
| if enabled is True and not installed: |
| # raise if enabled but not installed |
| with pytest.raises(ImportError, match="uharfbuzz"): |
| subset.main(args) |
| return |
| |
| with caplog.at_level(logging.DEBUG, "fontTools.ttLib.tables.otBase"): |
| subset.main(args) |
| |
| subsetfont = TTFont(subsetpath) |
| # both hb.repack and pure-python serializer compile to the same ttx |
| self.expect_ttx( |
| subsetfont, self.getpath("expect_harfbuzz_repacker.ttx"), ["GSUB"] |
| ) |
| |
| if enabled or enabled is None: |
| if installed: |
| assert "serializing 'GSUB' with hb.repack" in caplog.text |
| |
| if enabled is None and not installed: |
| assert ( |
| "uharfbuzz not found, compiling 'GSUB' with pure-python serializer" |
| ) in caplog.text |
| |
| if enabled is False: |
| assert ( |
| "hb.repack disabled, compiling 'GSUB' with pure-python serializer" |
| ) in caplog.text |
| |
| # test we emit a log.error if hb.repack fails (and we don't if successful) |
| assert ( |
| ( |
| "hb.repack failed to serialize 'GSUB', attempting fonttools resolutions " |
| "; the error message was: RepackerError: mocking" |
| ) |
| in caplog.text |
| ) ^ ok |
| |
| def test_retain_east_asian_spacing_features(self): |
| # This test font contains halt and vhal features, check that |
| # they are retained by default after subsetting. |
| ttx_path = self.getpath("NotoSansCJKjp-Regular.subset.ttx") |
| ttx = pathlib.Path(ttx_path).read_text() |
| assert 'FeatureTag value="halt"' in ttx |
| assert 'FeatureTag value="vhal"' in ttx |
| |
| fontpath = self.compile_font(ttx_path, ".otf") |
| subsetpath = self.temp_path(".otf") |
| subset.main( |
| [ |
| fontpath, |
| "--unicodes=*", |
| "--output-file=%s" % subsetpath, |
| ] |
| ) |
| # subset output is the same as the input |
| self.expect_ttx(TTFont(subsetpath), ttx_path) |
| |
| |
| @pytest.fixture |
| def featureVarsTestFont(): |
| fb = FontBuilder(unitsPerEm=100) |
| fb.setupGlyphOrder([".notdef", "f", "f_f", "dollar", "dollar.rvrn"]) |
| fb.setupCharacterMap({ord("f"): "f", ord("$"): "dollar"}) |
| fb.setupNameTable({"familyName": "TestFeatureVars", "styleName": "Regular"}) |
| fb.setupPost() |
| fb.setupFvar(axes=[("wght", 100, 400, 900, "Weight")], instances=[]) |
| fb.addOpenTypeFeatures( |
| """\ |
| feature dlig { |
| sub f f by f_f; |
| } dlig; |
| """ |
| ) |
| fb.addFeatureVariations( |
| [([{"wght": (0.20886, 1.0)}], {"dollar": "dollar.rvrn"})], featureTag="rvrn" |
| ) |
| buf = io.BytesIO() |
| fb.save(buf) |
| buf.seek(0) |
| |
| return TTFont(buf) |
| |
| |
| def test_subset_feature_variations_keep_all(featureVarsTestFont): |
| font = featureVarsTestFont |
| |
| options = subset.Options() |
| subsetter = subset.Subsetter(options) |
| subsetter.populate(unicodes=[ord("f"), ord("$")]) |
| subsetter.subset(font) |
| |
| featureTags = {r.FeatureTag for r in font["GSUB"].table.FeatureList.FeatureRecord} |
| # 'dlig' is discretionary so it is dropped by default |
| assert "dlig" not in featureTags |
| assert "f_f" not in font.getGlyphOrder() |
| # 'rvrn' is required so it is kept by default |
| assert "rvrn" in featureTags |
| assert "dollar.rvrn" in font.getGlyphOrder() |
| |
| |
| def test_subset_feature_variations_drop_all(featureVarsTestFont): |
| font = featureVarsTestFont |
| |
| options = subset.Options() |
| options.layout_features.remove("rvrn") # drop 'rvrn' |
| subsetter = subset.Subsetter(options) |
| subsetter.populate(unicodes=[ord("f"), ord("$")]) |
| subsetter.subset(font) |
| |
| featureTags = {r.FeatureTag for r in font["GSUB"].table.FeatureList.FeatureRecord} |
| glyphs = set(font.getGlyphOrder()) |
| |
| assert "rvrn" not in featureTags |
| assert glyphs == {".notdef", "f", "dollar"} |
| # all FeatureVariationRecords were dropped |
| assert font["GSUB"].table.FeatureVariations is None |
| assert font["GSUB"].table.Version == 0x00010000 |
| |
| |
| # TODO test_subset_feature_variations_drop_from_end_empty_records |
| # https://github.com/fonttools/fonttools/issues/1881#issuecomment-619415044 |
| |
| |
| @pytest.fixture |
| def singlepos2_font(): |
| fb = FontBuilder(unitsPerEm=1000) |
| fb.setupGlyphOrder([".notdef", "a", "b", "c"]) |
| fb.setupCharacterMap({ord("a"): "a", ord("b"): "b", ord("c"): "c"}) |
| fb.setupNameTable({"familyName": "TestSingePosFormat", "styleName": "Regular"}) |
| fb.setupPost() |
| fb.addOpenTypeFeatures( |
| """ |
| feature kern { |
| pos a -50; |
| pos b -40; |
| pos c -50; |
| } kern; |
| """ |
| ) |
| |
| buf = io.BytesIO() |
| fb.save(buf) |
| buf.seek(0) |
| |
| return TTFont(buf) |
| |
| |
| def test_subset_single_pos_format(singlepos2_font): |
| font = singlepos2_font |
| # The input font has a SinglePos Format 2 subtable where each glyph has |
| # different ValueRecords |
| assert getXML(font["GPOS"].table.LookupList.Lookup[0].toXML, font) == [ |
| "<Lookup>", |
| ' <LookupType value="1"/>', |
| ' <LookupFlag value="0"/>', |
| " <!-- SubTableCount=1 -->", |
| ' <SinglePos index="0" Format="2">', |
| " <Coverage>", |
| ' <Glyph value="a"/>', |
| ' <Glyph value="b"/>', |
| ' <Glyph value="c"/>', |
| " </Coverage>", |
| ' <ValueFormat value="4"/>', |
| " <!-- ValueCount=3 -->", |
| ' <Value index="0" XAdvance="-50"/>', |
| ' <Value index="1" XAdvance="-40"/>', |
| ' <Value index="2" XAdvance="-50"/>', |
| " </SinglePos>", |
| "</Lookup>", |
| ] |
| |
| options = subset.Options() |
| subsetter = subset.Subsetter(options) |
| subsetter.populate(unicodes=[ord("a"), ord("c")]) |
| subsetter.subset(font) |
| |
| # All the subsetted glyphs from the original SinglePos Format2 subtable |
| # now have the same ValueRecord, so we use a more compact Format 1 subtable. |
| assert getXML(font["GPOS"].table.LookupList.Lookup[0].toXML, font) == [ |
| "<Lookup>", |
| ' <LookupType value="1"/>', |
| ' <LookupFlag value="0"/>', |
| " <!-- SubTableCount=1 -->", |
| ' <SinglePos index="0" Format="1">', |
| " <Coverage>", |
| ' <Glyph value="a"/>', |
| ' <Glyph value="c"/>', |
| " </Coverage>", |
| ' <ValueFormat value="4"/>', |
| ' <Value XAdvance="-50"/>', |
| " </SinglePos>", |
| "</Lookup>", |
| ] |
| |
| |
| def test_subset_single_pos_format2_all_None(singlepos2_font): |
| # https://github.com/fonttools/fonttools/issues/2602 |
| font = singlepos2_font |
| gpos = font["GPOS"].table |
| subtable = gpos.LookupList.Lookup[0].SubTable[0] |
| assert subtable.Format == 2 |
| # Hack a SinglePosFormat2 with ValueFormat = 0; our own buildSinglePos |
| # never makes these as a SinglePosFormat1 is more compact, but they can |
| # be found in the wild. |
| subtable.Value = [None] * subtable.ValueCount |
| subtable.ValueFormat = 0 |
| |
| assert getXML(subtable.toXML, font) == [ |
| '<SinglePos Format="2">', |
| " <Coverage>", |
| ' <Glyph value="a"/>', |
| ' <Glyph value="b"/>', |
| ' <Glyph value="c"/>', |
| " </Coverage>", |
| ' <ValueFormat value="0"/>', |
| " <!-- ValueCount=3 -->", |
| "</SinglePos>", |
| ] |
| |
| options = subset.Options() |
| subsetter = subset.Subsetter(options) |
| subsetter.populate(unicodes=[ord("a"), ord("c")]) |
| subsetter.subset(font) |
| |
| # Check it was downgraded to Format1 after subsetting |
| assert getXML(font["GPOS"].table.LookupList.Lookup[0].SubTable[0].toXML, font) == [ |
| '<SinglePos Format="1">', |
| " <Coverage>", |
| ' <Glyph value="a"/>', |
| ' <Glyph value="c"/>', |
| " </Coverage>", |
| ' <ValueFormat value="0"/>', |
| "</SinglePos>", |
| ] |
| |
| |
| @pytest.fixture |
| def ttf_path(tmp_path): |
| # $(dirname $0)/../ttLib/data |
| ttLib_data = pathlib.Path(__file__).parent.parent / "ttLib" / "data" |
| font = TTFont() |
| font.importXML(ttLib_data / "TestTTF-Regular.ttx") |
| font_path = tmp_path / "TestTTF-Regular.ttf" |
| font.save(font_path) |
| return font_path |
| |
| |
| def test_subset_empty_glyf(tmp_path, ttf_path): |
| subset_path = tmp_path / (ttf_path.name + ".subset") |
| # only keep empty .notdef and space glyph, resulting in an empty glyf table |
| subset.main( |
| [ |
| str(ttf_path), |
| "--no-notdef-outline", |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--glyphs=.notdef space", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| assert subset_font.getGlyphOrder() == [".notdef", "space"] |
| assert subset_font.reader["glyf"] == b"\x00" |
| |
| glyf = subset_font["glyf"] |
| assert all(glyf[g].numberOfContours == 0 for g in subset_font.getGlyphOrder()) |
| |
| loca = subset_font["loca"] |
| assert all(loc == 0 for loc in loca) |
| |
| |
| @pytest.fixture |
| def colrv1_path(tmp_path): |
| base_glyph_names = ["uni%04X" % i for i in range(0xE000, 0xE000 + 10)] |
| layer_glyph_names = ["glyph%05d" % i for i in range(10, 20)] |
| glyph_order = [".notdef"] + base_glyph_names + layer_glyph_names |
| |
| pen = TTGlyphPen(glyphSet=None) |
| pen.moveTo((0, 0)) |
| pen.lineTo((0, 500)) |
| pen.lineTo((500, 500)) |
| pen.lineTo((500, 0)) |
| pen.closePath() |
| glyph = pen.glyph() |
| glyphs = {g: glyph for g in glyph_order} |
| |
| fb = FontBuilder(unitsPerEm=1024, isTTF=True) |
| fb.setupGlyphOrder(glyph_order) |
| fb.setupCharacterMap({int(name[3:], 16): name for name in base_glyph_names}) |
| fb.setupGlyf(glyphs) |
| fb.setupHorizontalMetrics({g: (500, 0) for g in glyph_order}) |
| fb.setupHorizontalHeader() |
| fb.setupOS2() |
| fb.setupPost() |
| fb.setupNameTable({"familyName": "TestCOLRv1", "styleName": "Regular"}) |
| |
| fb.setupCOLR( |
| { |
| "uniE000": ( |
| ot.PaintFormat.PaintColrLayers, |
| [ |
| { |
| "Format": ot.PaintFormat.PaintGlyph, |
| "Paint": (ot.PaintFormat.PaintSolid, 0), |
| "Glyph": "glyph00010", |
| }, |
| { |
| "Format": ot.PaintFormat.PaintGlyph, |
| "Paint": (ot.PaintFormat.PaintSolid, 2, 0.3), |
| "Glyph": "glyph00011", |
| }, |
| ], |
| ), |
| "uniE001": ( |
| ot.PaintFormat.PaintColrLayers, |
| [ |
| { |
| "Format": ot.PaintFormat.PaintTransform, |
| "Paint": { |
| "Format": ot.PaintFormat.PaintGlyph, |
| "Paint": { |
| "Format": ot.PaintFormat.PaintRadialGradient, |
| "x0": 250, |
| "y0": 250, |
| "r0": 250, |
| "x1": 200, |
| "y1": 200, |
| "r1": 0, |
| "ColorLine": { |
| "ColorStop": [(0.0, 1), (1.0, 2)], |
| "Extend": "repeat", |
| }, |
| }, |
| "Glyph": "glyph00012", |
| }, |
| "Transform": (0.7071, 0.7071, -0.7071, 0.7071, 0, 0), |
| }, |
| { |
| "Format": ot.PaintFormat.PaintGlyph, |
| "Paint": (ot.PaintFormat.PaintSolid, 1, 0.5), |
| "Glyph": "glyph00013", |
| }, |
| ], |
| ), |
| "uniE002": ( |
| ot.PaintFormat.PaintColrLayers, |
| [ |
| { |
| "Format": ot.PaintFormat.PaintGlyph, |
| "Paint": { |
| "Format": ot.PaintFormat.PaintLinearGradient, |
| "x0": 0, |
| "y0": 0, |
| "x1": 500, |
| "y1": 500, |
| "x2": -500, |
| "y2": 500, |
| "ColorLine": {"ColorStop": [(0.0, 1), (1.0, 2)]}, |
| }, |
| "Glyph": "glyph00014", |
| }, |
| { |
| "Format": ot.PaintFormat.PaintTransform, |
| "Paint": { |
| "Format": ot.PaintFormat.PaintGlyph, |
| "Paint": (ot.PaintFormat.PaintSolid, 1), |
| "Glyph": "glyph00015", |
| }, |
| "Transform": (1, 0, 0, 1, 400, 400), |
| }, |
| ], |
| ), |
| "uniE003": { |
| "Format": ot.PaintFormat.PaintRotateAroundCenter, |
| "Paint": { |
| "Format": ot.PaintFormat.PaintColrGlyph, |
| "Glyph": "uniE001", |
| }, |
| "angle": 45, |
| "centerX": 250, |
| "centerY": 250, |
| }, |
| "uniE004": [ |
| ("glyph00016", 1), |
| ("glyph00017", 0xFFFF), # special palette index for foreground text |
| ("glyph00018", 2), |
| ], |
| }, |
| clipBoxes={ |
| "uniE000": (0, 0, 200, 300), |
| "uniE001": (0, 0, 500, 500), |
| "uniE002": (-50, -50, 400, 400), |
| "uniE003": (-50, -50, 400, 400), |
| }, |
| ) |
| fb.setupCPAL( |
| [ |
| [ |
| (1.0, 0.0, 0.0, 1.0), # red |
| (0.0, 1.0, 0.0, 1.0), # green |
| (0.0, 0.0, 1.0, 1.0), # blue |
| ], |
| ], |
| ) |
| |
| output_path = tmp_path / "TestCOLRv1.ttf" |
| fb.save(output_path) |
| |
| return output_path |
| |
| |
| @pytest.fixture |
| def colrv1_cpalv1_path(colrv1_path): |
| # upgrade CPAL from v0 to v1 by adding labels |
| font = TTFont(colrv1_path) |
| fb = FontBuilder(font=font) |
| fb.setupCPAL( |
| [ |
| [ |
| (1.0, 0.0, 0.0, 1.0), # red |
| (0.0, 1.0, 0.0, 1.0), # green |
| (0.0, 0.0, 1.0, 1.0), # blue |
| ], |
| ], |
| paletteLabels=["test palette"], |
| paletteEntryLabels=["first color", "second color", "third color"], |
| ) |
| |
| output_path = colrv1_path.parent / "TestCOLRv1CPALv1.ttf" |
| fb.save(output_path) |
| |
| return output_path |
| |
| |
| @pytest.fixture |
| def colrv1_cpalv1_share_nameID_path(colrv1_path): |
| font = TTFont(colrv1_path) |
| fb = FontBuilder(font=font) |
| fb.setupCPAL( |
| [ |
| [ |
| (1.0, 0.0, 0.0, 1.0), # red |
| (0.0, 1.0, 0.0, 1.0), # green |
| (0.0, 0.0, 1.0, 1.0), # blue |
| ], |
| ], |
| paletteLabels=["test palette"], |
| paletteEntryLabels=["first color", "second color", "third color"], |
| ) |
| |
| # Set the name ID of the first color to use nameID 1 = familyName = "TestCOLRv1" |
| fb.font["CPAL"].paletteEntryLabels[0] = 1 |
| |
| output_path = colrv1_path.parent / "TestCOLRv1CPALv1.ttf" |
| fb.save(output_path) |
| |
| return output_path |
| |
| |
| def test_subset_COLRv1_and_CPAL(colrv1_path): |
| subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") |
| |
| subset.main( |
| [ |
| str(colrv1_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--unicodes=E002,E003,E004", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| glyph_set = set(subset_font.getGlyphOrder()) |
| |
| # uniE000 and its children are excluded from subset |
| assert "uniE000" not in glyph_set |
| assert "glyph00010" not in glyph_set |
| assert "glyph00011" not in glyph_set |
| |
| # uniE001 and children are pulled in indirectly as PaintColrGlyph by uniE003 |
| assert "uniE001" in glyph_set |
| assert "glyph00012" in glyph_set |
| assert "glyph00013" in glyph_set |
| |
| assert "uniE002" in glyph_set |
| assert "glyph00014" in glyph_set |
| assert "glyph00015" in glyph_set |
| |
| assert "uniE003" in glyph_set |
| |
| assert "uniE004" in glyph_set |
| assert "glyph00016" in glyph_set |
| assert "glyph00017" in glyph_set |
| assert "glyph00018" in glyph_set |
| |
| assert "COLR" in subset_font |
| colr = subset_font["COLR"].table |
| assert colr.Version == 1 |
| assert len(colr.BaseGlyphRecordArray.BaseGlyphRecord) == 1 |
| assert len(colr.BaseGlyphList.BaseGlyphPaintRecord) == 3 # was 4 |
| |
| base = colr.BaseGlyphList.BaseGlyphPaintRecord[0] |
| assert base.BaseGlyph == "uniE001" |
| layers = colr.LayerList.Paint[ |
| base.Paint.FirstLayerIndex : base.Paint.FirstLayerIndex + base.Paint.NumLayers |
| ] |
| assert len(layers) == 2 |
| # check v1 palette indices were remapped |
| assert layers[0].Paint.Paint.ColorLine.ColorStop[0].PaletteIndex == 0 |
| assert layers[0].Paint.Paint.ColorLine.ColorStop[1].PaletteIndex == 1 |
| assert layers[1].Paint.PaletteIndex == 0 |
| |
| baseRecV0 = colr.BaseGlyphRecordArray.BaseGlyphRecord[0] |
| assert baseRecV0.BaseGlyph == "uniE004" |
| layersV0 = colr.LayerRecordArray.LayerRecord |
| assert len(layersV0) == 3 |
| # check v0 palette indices were remapped (except for 0xFFFF) |
| assert layersV0[0].PaletteIndex == 0 |
| assert layersV0[1].PaletteIndex == 0xFFFF |
| assert layersV0[2].PaletteIndex == 1 |
| |
| clipBoxes = colr.ClipList.clips |
| assert {"uniE001", "uniE002", "uniE003"} == set(clipBoxes) |
| assert clipBoxes["uniE002"] == clipBoxes["uniE003"] |
| |
| assert "CPAL" in subset_font |
| cpal = subset_font["CPAL"] |
| assert [ |
| tuple(v / 255 for v in (c.red, c.green, c.blue, c.alpha)) |
| for c in cpal.palettes[0] |
| ] == [ |
| # the first color 'red' was pruned |
| (0.0, 1.0, 0.0, 1.0), # green |
| (0.0, 0.0, 1.0, 1.0), # blue |
| ] |
| |
| |
| def test_subset_COLRv1_and_CPALv1(colrv1_cpalv1_path): |
| subset_path = colrv1_cpalv1_path.parent / (colrv1_cpalv1_path.name + ".subset") |
| |
| subset.main( |
| [ |
| str(colrv1_cpalv1_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--unicodes=E002,E003,E004", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| assert "CPAL" in subset_font |
| cpal = subset_font["CPAL"] |
| name_table = subset_font["name"] |
| assert [ |
| name_table.getDebugName(name_id) for name_id in cpal.paletteEntryLabels |
| ] == [ |
| # "first color", # The first color was pruned |
| "second color", |
| "third color", |
| ] |
| # check that the "first color" name is dropped from name table |
| font = TTFont(colrv1_cpalv1_path) |
| |
| first_color_nameID = None |
| for n in font["name"].names: |
| if n.toUnicode() == "first color": |
| first_color_nameID = n.nameID |
| break |
| assert first_color_nameID is not None |
| assert all(n.nameID != first_color_nameID for n in name_table.names) |
| |
| |
| def test_subset_COLRv1_and_CPALv1_keep_nameID(colrv1_cpalv1_path): |
| subset_path = colrv1_cpalv1_path.parent / (colrv1_cpalv1_path.name + ".subset") |
| |
| # figure out the name ID of first color so we can keep it |
| font = TTFont(colrv1_cpalv1_path) |
| |
| first_color_nameID = None |
| for n in font["name"].names: |
| if n.toUnicode() == "first color": |
| first_color_nameID = n.nameID |
| break |
| assert first_color_nameID is not None |
| |
| subset.main( |
| [ |
| str(colrv1_cpalv1_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--unicodes=E002,E003,E004", |
| f"--name-IDs={first_color_nameID}", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| assert "CPAL" in subset_font |
| cpal = subset_font["CPAL"] |
| name_table = subset_font["name"] |
| assert [ |
| name_table.getDebugName(name_id) for name_id in cpal.paletteEntryLabels |
| ] == [ |
| # "first color", # The first color was pruned |
| "second color", |
| "third color", |
| ] |
| |
| # Check that the name ID is kept |
| assert any(n.nameID == first_color_nameID for n in name_table.names) |
| |
| |
| def test_subset_COLRv1_and_CPALv1_share_nameID(colrv1_cpalv1_share_nameID_path): |
| subset_path = colrv1_cpalv1_share_nameID_path.parent / ( |
| colrv1_cpalv1_share_nameID_path.name + ".subset" |
| ) |
| |
| subset.main( |
| [ |
| str(colrv1_cpalv1_share_nameID_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--unicodes=E002,E003,E004", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| assert "CPAL" in subset_font |
| cpal = subset_font["CPAL"] |
| name_table = subset_font["name"] |
| assert [ |
| name_table.getDebugName(name_id) for name_id in cpal.paletteEntryLabels |
| ] == [ |
| # "first color", # The first color was pruned |
| "second color", |
| "third color", |
| ] |
| |
| # Check that the name ID 1 is kept |
| assert any(n.nameID == 1 for n in name_table.names) |
| |
| |
| def test_subset_COLRv1_and_CPAL_drop_empty(colrv1_path): |
| subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") |
| |
| subset.main( |
| [ |
| str(colrv1_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--glyphs=glyph00010", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| glyph_set = set(subset_font.getGlyphOrder()) |
| |
| assert "glyph00010" in glyph_set |
| assert "uniE000" not in glyph_set |
| |
| assert "COLR" not in subset_font |
| assert "CPAL" not in subset_font |
| |
| |
| def test_subset_COLRv1_downgrade_version(colrv1_path): |
| subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") |
| |
| subset.main( |
| [ |
| str(colrv1_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--unicodes=E004", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| assert set(subset_font.getGlyphOrder()) == { |
| ".notdef", |
| "uniE004", |
| "glyph00016", |
| "glyph00017", |
| "glyph00018", |
| } |
| |
| assert "COLR" in subset_font |
| assert subset_font["COLR"].version == 0 |
| |
| |
| def test_subset_COLRv1_drop_all_v0_glyphs(colrv1_path): |
| subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") |
| |
| subset.main( |
| [ |
| str(colrv1_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--unicodes=E003", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| assert set(subset_font.getGlyphOrder()) == { |
| ".notdef", |
| "uniE001", |
| "uniE003", |
| "glyph00012", |
| "glyph00013", |
| } |
| |
| assert "COLR" in subset_font |
| colr = subset_font["COLR"] |
| assert colr.version == 1 |
| assert colr.table.BaseGlyphRecordCount == 0 |
| assert colr.table.BaseGlyphRecordArray is None |
| assert colr.table.LayerRecordArray is None |
| assert colr.table.LayerRecordCount is 0 |
| |
| |
| def test_subset_COLRv1_no_ClipList(colrv1_path): |
| font = TTFont(colrv1_path) |
| font["COLR"].table.ClipList = None # empty ClipList |
| font.save(colrv1_path) |
| |
| subset_path = colrv1_path.parent / (colrv1_path.name + ".subset") |
| subset.main( |
| [ |
| str(colrv1_path), |
| f"--output-file={subset_path}", |
| "--unicodes=*", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| assert subset_font["COLR"].table.ClipList is None |
| |
| |
| def test_subset_keep_size_drop_empty_stylistic_set(): |
| fb = FontBuilder(unitsPerEm=1000, isTTF=True) |
| glyph_order = [".notdef", "a", "b", "b.ss01"] |
| fb.setupGlyphOrder(glyph_order) |
| fb.setupGlyf({g: TTGlyphPen(None).glyph() for g in glyph_order}) |
| fb.setupCharacterMap({ord("a"): "a", ord("b"): "b"}) |
| fb.setupHorizontalMetrics({g: (500, 0) for g in glyph_order}) |
| fb.setupHorizontalHeader() |
| fb.setupOS2() |
| fb.setupPost() |
| fb.setupNameTable({"familyName": "TestKeepSizeFeature", "styleName": "Regular"}) |
| fb.addOpenTypeFeatures( |
| """ |
| feature size { |
| parameters 10.0 0; |
| } size; |
| feature ss01 { |
| featureNames { |
| name "Alternate b"; |
| }; |
| sub b by b.ss01; |
| } ss01; |
| """ |
| ) |
| |
| buf = io.BytesIO() |
| fb.save(buf) |
| buf.seek(0) |
| |
| font = TTFont(buf) |
| |
| gpos_features = font["GPOS"].table.FeatureList.FeatureRecord |
| assert gpos_features[0].FeatureTag == "size" |
| assert isinstance(gpos_features[0].Feature.FeatureParams, ot.FeatureParamsSize) |
| assert gpos_features[0].Feature.LookupCount == 0 |
| gsub_features = font["GSUB"].table.FeatureList.FeatureRecord |
| assert gsub_features[0].FeatureTag == "ss01" |
| assert isinstance( |
| gsub_features[0].Feature.FeatureParams, ot.FeatureParamsStylisticSet |
| ) |
| |
| options = subset.Options(layout_features=["*"]) |
| subsetter = subset.Subsetter(options) |
| subsetter.populate(unicodes=[ord("a")]) |
| subsetter.subset(font) |
| |
| # empty size feature was kept |
| gpos_features = font["GPOS"].table.FeatureList.FeatureRecord |
| assert gpos_features[0].FeatureTag == "size" |
| assert isinstance(gpos_features[0].Feature.FeatureParams, ot.FeatureParamsSize) |
| assert gpos_features[0].Feature.LookupCount == 0 |
| # empty ss01 feature was dropped |
| assert font["GSUB"].table.FeatureList.FeatureCount == 0 |
| |
| |
| @pytest.mark.skipif(etree is not None, reason="lxml is installed") |
| def test_subset_svg_missing_lxml(ttf_path): |
| # add dummy SVG table and confirm we raise ImportError upon trying to subset it |
| font = TTFont(ttf_path) |
| font["SVG "] = newTable("SVG ") |
| font["SVG "].docList = [('<svg><g id="glyph1"/></svg>', 1, 1)] |
| font.save(ttf_path) |
| |
| with pytest.raises(ImportError): |
| subset.main([str(ttf_path), "--gids=0,1"]) |
| |
| |
| def test_subset_COLR_glyph_closure(tmp_path): |
| # https://github.com/fonttools/fonttools/issues/2461 |
| font = TTFont() |
| ttx = pathlib.Path(__file__).parent / "data" / "BungeeColor-Regular.ttx" |
| font.importXML(ttx) |
| |
| color_layers = font["COLR"].ColorLayers |
| assert ".notdef" in color_layers |
| assert "Agrave" in color_layers |
| assert "grave" in color_layers |
| |
| font_path = tmp_path / "BungeeColor-Regular.ttf" |
| subset_path = font_path.with_suffix(".subset.ttf)") |
| font.save(font_path) |
| |
| subset.main( |
| [ |
| str(font_path), |
| "--glyph-names", |
| f"--output-file={subset_path}", |
| "--glyphs=Agrave", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| |
| glyph_order = subset_font.getGlyphOrder() |
| |
| assert glyph_order == [ |
| ".notdef", # '.notdef' is always included automatically |
| "A", |
| "grave", |
| "Agrave", |
| ".notdef.alt001", |
| ".notdef.alt002", |
| "A.alt002", |
| "Agrave.alt001", |
| "Agrave.alt002", |
| "grave.alt002", |
| ] |
| |
| color_layers = subset_font["COLR"].ColorLayers |
| assert ".notdef" in color_layers |
| assert "Agrave" in color_layers |
| # Agrave 'glyf' uses grave. It should be retained in 'glyf' but NOT in |
| # COLR when we subset down to Agrave. |
| assert "grave" not in color_layers |
| |
| |
| def test_subset_recalc_xAvgCharWidth(ttf_path): |
| # Note that the font in in the *ttLib*/data/TestTTF-Regular.ttx file, |
| # not this subset/data folder. |
| font = TTFont(ttf_path) |
| xAvgCharWidth_before = font["OS/2"].xAvgCharWidth |
| |
| subset_path = ttf_path.with_suffix(".subset.ttf") |
| subset.main( |
| [ |
| str(ttf_path), |
| f"--output-file={subset_path}", |
| # Keep only the ellipsis, which is very wide, that ought to bump up the average |
| "--glyphs=ellipsis", |
| "--recalc-average-width", |
| "--no-prune-unicode-ranges", |
| ] |
| ) |
| subset_font = TTFont(subset_path) |
| xAvgCharWidth_after = subset_font["OS/2"].xAvgCharWidth |
| |
| # Check that the value gets updated |
| assert xAvgCharWidth_after != xAvgCharWidth_before |
| |
| # Check that the value gets updated to the actual new value |
| subset_font["OS/2"].recalcAvgCharWidth(subset_font) |
| assert xAvgCharWidth_after == subset_font["OS/2"].xAvgCharWidth |
| |
| |
| if __name__ == "__main__": |
| sys.exit(unittest.main()) |
| |
| |
| def test_subset_prune_gdef_markglyphsetsdef(): |
| # GDEF_MarkGlyphSetsDef |
| fb = FontBuilder(unitsPerEm=1000, isTTF=True) |
| glyph_order = [ |
| ".notdef", |
| "A", |
| "Aacute", |
| "Acircumflex", |
| "Adieresis", |
| "a", |
| "aacute", |
| "acircumflex", |
| "adieresis", |
| "dieresiscomb", |
| "acutecomb", |
| "circumflexcomb", |
| ] |
| fb.setupGlyphOrder(glyph_order) |
| fb.setupGlyf({g: TTGlyphPen(None).glyph() for g in glyph_order}) |
| fb.setupHorizontalMetrics({g: (500, 0) for g in glyph_order}) |
| fb.setupHorizontalHeader() |
| fb.setupPost() |
| fb.setupNameTable( |
| {"familyName": "TestGDEFMarkGlyphSetsDef", "styleName": "Regular"} |
| ) |
| fb.addOpenTypeFeatures( |
| """ |
| feature ccmp { |
| lookup ccmp_1 { |
| lookupflag UseMarkFilteringSet [acutecomb]; |
| sub a acutecomb by aacute; |
| sub A acutecomb by Aacute; |
| } ccmp_1; |
| lookup ccmp_2 { |
| lookupflag UseMarkFilteringSet [circumflexcomb]; |
| sub a circumflexcomb by acircumflex; |
| sub A circumflexcomb by Acircumflex; |
| } ccmp_2; |
| lookup ccmp_3 { |
| lookupflag UseMarkFilteringSet [dieresiscomb]; |
| sub a dieresiscomb by adieresis; |
| sub A dieresiscomb by Adieresis; |
| sub A acutecomb by Aacute; |
| } ccmp_3; |
| } ccmp; |
| """ |
| ) |
| |
| buf = io.BytesIO() |
| fb.save(buf) |
| buf.seek(0) |
| |
| font = TTFont(buf) |
| |
| features = font["GSUB"].table.FeatureList.FeatureRecord |
| assert features[0].FeatureTag == "ccmp" |
| lookups = font["GSUB"].table.LookupList.Lookup |
| assert lookups[0].LookupFlag == 16 |
| assert lookups[0].MarkFilteringSet == 0 |
| assert lookups[1].LookupFlag == 16 |
| assert lookups[1].MarkFilteringSet == 1 |
| assert lookups[2].LookupFlag == 16 |
| assert lookups[2].MarkFilteringSet == 2 |
| marksets = font["GDEF"].table.MarkGlyphSetsDef.Coverage |
| assert marksets[0].glyphs == ["acutecomb"] |
| assert marksets[1].glyphs == ["circumflexcomb"] |
| assert marksets[2].glyphs == ["dieresiscomb"] |
| |
| options = subset.Options(layout_features=["*"]) |
| subsetter = subset.Subsetter(options) |
| subsetter.populate(glyphs=["A", "a", "acutecomb", "dieresiscomb"]) |
| subsetter.subset(font) |
| |
| features = font["GSUB"].table.FeatureList.FeatureRecord |
| assert features[0].FeatureTag == "ccmp" |
| lookups = font["GSUB"].table.LookupList.Lookup |
| assert lookups[0].LookupFlag == 16 |
| assert lookups[0].MarkFilteringSet == 0 |
| assert lookups[1].LookupFlag == 16 |
| assert lookups[1].MarkFilteringSet == 1 |
| marksets = font["GDEF"].table.MarkGlyphSetsDef.Coverage |
| assert marksets[0].glyphs == ["acutecomb"] |
| assert marksets[1].glyphs == ["dieresiscomb"] |
| |
| buf = io.BytesIO() |
| fb.save(buf) |
| buf.seek(0) |
| |
| font = TTFont(buf) |
| |
| options = subset.Options(layout_features=["*"], layout_closure=False) |
| subsetter = subset.Subsetter(options) |
| subsetter.populate(glyphs=["A", "acutecomb", "Aacute"]) |
| subsetter.subset(font) |
| |
| features = font["GSUB"].table.FeatureList.FeatureRecord |
| assert features[0].FeatureTag == "ccmp" |
| lookups = font["GSUB"].table.LookupList.Lookup |
| assert lookups[0].LookupFlag == 16 |
| assert lookups[0].MarkFilteringSet == 0 |
| assert lookups[1].LookupFlag == 0 |
| assert lookups[1].MarkFilteringSet == None |
| marksets = font["GDEF"].table.MarkGlyphSetsDef.Coverage |
| assert marksets[0].glyphs == ["acutecomb"] |
