def test_angle(theta):
a = psMat.skew(theta)
print(theta, a)
if not isinstance(a, tuple):
exit(10)
if len(a) != 6:
exit(20)
for element in a:
if not isinstance(element, float):
exit(30)
if theta == 0:
for i in range(0, 6):
if eps < abs(a[i] - (1, 0, 0, 1, 0, 0)[i]):
exit(40)
if abs(theta - pi / 4) <= eps:
for i in range(0, 6):
if eps < abs(a[i] - (1, 0, 1, 1, 0, 0)[i]):
exit(42)
if abs(theta + pi / 4) <= eps:
for i in range(0, 6):
if eps < abs(a[i] - (1, 0, -1, 1, 0, 0)[i]):
exit(42)
if abs(theta - pi) <= eps:
for i in range(0, 6):
if eps < abs(a[i] - (1, 0, 0, 1, 0, 0)[i]):
exit(44)
for i in range(0, 6):
if eps < abs(a[i] - (1, 0, tan(theta), 1, 0, 0)[i]):
exit(50)
def makeSlanted(infile, outfile, feafile, version, slant):
font = makeDesktop(infile, outfile, feafile, version, False, False)
# compute amout of skew, magic formula copied from fontforge sources
import math
skew = psMat.skew(-slant * math.pi / 180.0)
font.selection.all()
punct = (
"period",
"guillemotleft",
"guillemotright",
"braceleft",
"bar",
"braceright",
"bracketleft",
"bracketright",
"parenleft",
"parenright",
"slash",
"backslash",
"brokenbar",
"uni061F",
)
for name in punct:
font.selection.select(("less", None), name)
font.transform(skew)
# fix metadata
font.italicangle = slant
font.fullname += " Slanted"
if font.weight == "Bold":
font.fontname = font.fontname.replace("Bold", "BoldSlanted")
font.appendSFNTName("Arabic (Egypt)", "SubFamily", "عريض مائل")
font.appendSFNTName("English (US)", "SubFamily", "Bold Slanted")
else:
font.fontname = font.fontname.replace("Regular", "Slanted")
font.appendSFNTName("Arabic (Egypt)", "SubFamily", "مائل")
mergeLatin(font, feafile, italic=skew)
# we want to merge features after merging the latin font because many
# referenced glyphs are in the latin font
mergeFeatures(font, feafile)
generateFont(font, outfile)
def makeSlanted(infile, outfile, feafile, version, slant):
font = makeDesktop(infile, outfile, feafile, version, False, False)
# compute amout of skew, magic formula copied from fontforge sources
import math
skew = psMat.skew(-slant * math.pi / 180.0)
# Remove Arabic math alphanumerics, they are upright-only.
font.selection.select(["ranges"], "u1EE00", "u1EEFF")
for glyph in font.selection.byGlyphs:
font.removeGlyph(glyph)
font.selection.all()
punct = ("exclam", "period", "guillemotleft", "guillemotright",
"braceleft", "bar", "braceright", "bracketleft", "bracketright",
"parenleft", "parenright", "slash", "backslash", "brokenbar",
"uni061F", "dot.1", "dot.2")
for name in punct:
font.selection.select(["less"], name)
font.transform(skew)
# fix metadata
font.italicangle = slant
font.fullname += " Slanted"
if font.weight == "Bold":
font.fontname = font.fontname.replace("Bold", "BoldSlanted")
font.appendSFNTName("Arabic (Egypt)", "SubFamily", "عريض مائل")
font.appendSFNTName("English (US)", "SubFamily", "Bold Slanted")
else:
font.fontname = font.fontname.replace("Regular", "Slanted")
font.appendSFNTName("Arabic (Egypt)", "SubFamily", "مائل")
mergeLatin(font, feafile, italic=skew)
makeNumerators(font)
# we want to merge features after merging the latin font because many
# referenced glyphs are in the latin font
mergeFeatures(font, feafile)
generateFont(font, outfile)