def test_write_font_binary(svgs, expected_ttx, color_format, output_format):
config, glyph_inputs = test_helper.color_font_config(
color_format, svgs, output_format)
_, ttfont = write_font._generate_color_font(config, glyph_inputs)
# sanity check the font
# glyf should not have identical-except-name entries except .notdef and .space
# SVG should not have identical paths or gradients
# in both cases this should be true when normalized to start from 0,0
test_helper.assert_expected_ttx(svgs, ttfont, expected_ttx)
def _build_and_check_ttx(config_overrides, svgs, expected_ttx):
config_file = Path(tempfile.mkdtemp()) / "config.toml"
font_config, _ = color_font_config(config_overrides,
svgs,
tmp_dir=str(config_file.parent))
config.write(config_file, font_config)
print(config_file, font_config)
_run((str(config_file), ), tmp_dir=config_file.parent)
font = TTFont(config_file.parent / "Font.ttf")
assert_expected_ttx(svgs, font, expected_ttx)
def test_keep_glyph_names(svgs, color_format, keep_glyph_names):
config, glyph_inputs = test_helper.color_font_config(
color_format, svgs, ".ttf", keep_glyph_names=keep_glyph_names)
ufo, ttfont = write_font._generate_color_font(config, glyph_inputs)
assert len(ufo.glyphOrder) == len(ttfont.getGlyphOrder())
if keep_glyph_names:
assert ttfont["post"].formatType == 2.0
assert ufo.glyphOrder == ttfont.getGlyphOrder()
else:
assert ttfont["post"].formatType == 3.0
assert ufo.glyphOrder != ttfont.getGlyphOrder()
def test_svg_to_colr_to_svg(svg_in, expected_svg_out, config_overrides):
config, glyph_inputs = test_helper.color_font_config(
config_overrides,
(svg_in, ),
)
_, ttfont = write_font._generate_color_font(config, glyph_inputs)
svg_before = SVG.parse(str(test_helper.locate_test_file(svg_in)))
svgs_from_font = tuple(
colr_to_svg(svg_before.view_box(), ttfont,
rounding_ndigits=3).values())
assert len(svgs_from_font) == 1
svg_expected = SVG.parse(
str(test_helper.locate_test_file(expected_svg_out)))
test_helper.svg_diff(svgs_from_font[0], svg_expected)
def test_version(color_format, version_major, version_minor, expected):
config_overrides = {"color_format": color_format}
if version_major is not None:
config_overrides["version_major"] = version_major
else:
version_major = 1
if version_minor is not None:
config_overrides["version_minor"] = version_minor
else:
version_minor = 0
config, glyph_inputs = test_helper.color_font_config(
config_overrides, ("rect.svg", "one-o-clock.svg"))
ufo, ttfont = write_font._generate_color_font(config, glyph_inputs)
ttfont = test_helper.reload_font(ttfont)
assert ufo.info.versionMajor == version_major
assert ufo.info.versionMinor == version_minor
assert ttfont["name"].getDebugName(
nameID=5).startswith(f"Version {expected}")
def test_ufo_color_base_glyph_bounds(svgs, config_overrides,
expected_clip_boxes):
config_overrides = {"output_file": "font.ufo", **config_overrides}
config, glyph_inputs = test_helper.color_font_config(
config_overrides, svgs)
ufo, _ = write_font._generate_color_font(config, glyph_inputs)
base_glyph_names = [f"e{str(i).zfill(3)}" for i in range(len(svgs))]
for base_glyph_name in base_glyph_names:
assert len(ufo[base_glyph_name]) == 0
if expected_clip_boxes is not None:
clip_boxes = ufo.lib[COLR_CLIP_BOXES_KEY]
assert len(clip_boxes) == len(svgs) == len(expected_clip_boxes)
for base_glyph_name, (glyphs, bounds), expected_bounds in zip(
base_glyph_names, clip_boxes, expected_clip_boxes):
assert glyphs == [base_glyph_name]
assert bounds == pytest.approx(expected_bounds)
else:
assert COLR_CLIP_BOXES_KEY not in ufo.lib
def test_vertical_metrics(ascender, descender, linegap):
config_overrides = {
"ascender": ascender,
"descender": descender,
"linegap": linegap,
}
config, glyph_inputs = test_helper.color_font_config(
config_overrides, ("rect.svg", "one-o-clock.svg"))
ufo, ttfont = write_font._generate_color_font(config, glyph_inputs)
ttfont = test_helper.reload_font(ttfont)
hhea = ttfont["hhea"]
os2 = ttfont["OS/2"]
assert ufo.info.ascender == hhea.ascent == os2.sTypoAscender == ascender
assert ufo.info.descender == hhea.descent == os2.sTypoDescender == descender
assert hhea.lineGap == os2.sTypoLineGap == linegap
# check USE_TYPO_METRICS is set
assert os2.fsSelection & (1 << 7) != 0
# These are ufo2ft's fallback WinAscent/WinDescent, good enough for now.
# TODO: Set to the actual global yMin/yMax to prevent any clipping?
assert os2.usWinAscent == ascender + linegap
assert os2.usWinDescent == abs(descender) # always positive
