def createStretchyRadical(aFont):
radicalCodePoint = 0x221a
mathfont.createSquareGlyph(aFont, radicalCodePoint)
g = aFont.createChar(-1, "size1")
mathfont.drawRectangleGlyph(g, mathfont.em, 2 * mathfont.em, 0)
g = aFont.createChar(-1, "size2")
mathfont.drawRectangleGlyph(g, mathfont.em, 3 * mathfont.em, 0)
g = aFont.createChar(-1, "size3")
mathfont.drawRectangleGlyph(g, mathfont.em, 4 * mathfont.em, 0)
overlap = mathfont.em / 2
aFont[radicalCodePoint].verticalVariants = "radical size1 size2 size3"
aFont[radicalCodePoint].verticalComponents = \
(("size2", False, 0, mathfont.em, 3 * mathfont.em), \
("size1", True, mathfont.em, mathfont.em, 2 * mathfont.em))
def createStretchyRadical(aFont):
radicalCodePoint = 0x221a
mathfont.createSquareGlyph(aFont, radicalCodePoint)
g = aFont.createChar(-1, "size1")
mathfont.drawRectangleGlyph(g, mathfont.em, 2 * mathfont.em, 0)
g = aFont.createChar(-1, "size2")
mathfont.drawRectangleGlyph(g, mathfont.em, 3 * mathfont.em, 0)
g = aFont.createChar(-1, "size3")
mathfont.drawRectangleGlyph(g, mathfont.em, 4 * mathfont.em, 0)
aFont[radicalCodePoint].verticalVariants = "radical size1 size2 size3"
# Part: (glyphName, isExtender, startConnector, endConnector, fullAdvance)
aFont.math.MinConnectorOverlap = 0
aFont[radicalCodePoint].verticalComponents = \
(("size2", False, 0, mathfont.em, 3 * mathfont.em), \
("size1", True, mathfont.em, mathfont.em, 2 * mathfont.em))
# overscript is an accent.
font.math.UpperLimitBaselineRiseMin = 0
font.math.StretchStackTopShiftUp = 0
font.math.AccentBaseHeight = 2 * mathfont.em
font.math.OverbarVerticalGap = 0
createSizeVariants(font)
for key in operatorDictionary:
value = operatorDictionary[key]
for c in value["characters"]:
if c in font:
continue
if c == NonBreakingSpace:
g = font.createChar(c)
mathfont.drawRectangleGlyph(g, mathfont.em, mathfont.em / 3, 0)
else:
mathfont.createSquareGlyph(font, c)
createStretchy(font, c, c in inlineAxisOperators)
mathfont.save(font)
# Generate the python file.
for key in operatorDictionary:
del operatorDictionary[key]["characters"] # Remove this temporary value.
JSON = {
"comment":
"This file was automatically generated by operator-dictionary.py. Do not edit.",
"dictionary": operatorDictionary
}
with open('../support/operator-dictionary.json', 'w') as fp:
json.dump(JSON, fp, sort_keys=True, ensure_ascii=True)
#!/usr/bin/python
from utils import mathfont
import fontforge
nAryWhiteVerticalBarCodePoint = 0x2AFF
v1 = 5 * mathfont.em
f = mathfont.create("largeop-displayoperatorminheight%d" % v1,
"Copyright (c) 2016 MathML Association")
f.math.DisplayOperatorMinHeight = v1
mathfont.createSquareGlyph(f, nAryWhiteVerticalBarCodePoint)
g = f.createChar(-1, "uni2AFF.display")
mathfont.drawRectangleGlyph(g, mathfont.em, v1, 0)
f[nAryWhiteVerticalBarCodePoint].verticalVariants = "uni2AFF uni2AFF.display"
mathfont.save(f)
v1 = 2 * mathfont.em
v2 = 3 * mathfont.em
f = mathfont.create(
"largeop-displayoperatorminheight%d-2AFF-italiccorrection%d" % (v1, v2),
"Copyright (c) 2018 Igalia S.L.")
f.math.DisplayOperatorMinHeight = v1
mathfont.createSquareGlyph(f, nAryWhiteVerticalBarCodePoint)
g = f.createChar(-1, "uni2AFF.display")
p = g.glyphPen()
p.moveTo(0, 0)
p.lineTo(v2, v1)
p.lineTo(v2 + mathfont.em, v1)
p.lineTo(mathfont.em, 0)
p.closePath()
g.width = mathfont.em + v2
#!/usr/bin/python
from utils import mathfont
import fontforge
nAryWhiteVerticalBarCodePoint = 0x2AFF
v1 = 5 * mathfont.em
f = mathfont.create("largeop-displayoperatorminheight%d" % v1)
f.math.DisplayOperatorMinHeight = v1
mathfont.createSquareGlyph(f, nAryWhiteVerticalBarCodePoint)
g = f.createChar(-1, "uni2AFF.display")
mathfont.drawRectangleGlyph(g, mathfont.em, v1, 0)
f[nAryWhiteVerticalBarCodePoint].verticalVariants = "uni2AFF uni2AFF.display"
mathfont.save(f)
v1 = 2 * mathfont.em
v2 = 3 * mathfont.em
f = mathfont.create("largeop-displayoperatorminheight%d-2AFF-italiccorrection%d" % (v1, v2))
f.copyright = "Copyright (c) 2018 Igalia S.L."
f.math.DisplayOperatorMinHeight = v1
mathfont.createSquareGlyph(f, nAryWhiteVerticalBarCodePoint)
g = f.createChar(-1, "uni2AFF.display")
p = g.glyphPen()
p.moveTo(0, 0)
p.lineTo(v2, v1)
p.lineTo(v2 + mathfont.em, v1)
p.lineTo(mathfont.em, 0)
p.closePath();
g.width = mathfont.em + v2
g.italicCorrection = v2
f[nAryWhiteVerticalBarCodePoint].verticalVariants = "uni2AFF uni2AFF.display"
#!/usr/bin/python
from utils import mathfont
import fontforge
nArySumCodePoint = 0x2211 # largeop operator
v = 3 * mathfont.em
f = mathfont.create("limits-lowerlimitbaselinedropmin%d" % v)
mathfont.createSquareGlyph(f, nArySumCodePoint)
f.math.LowerLimitBaselineDropMin = v
f.math.LowerLimitGapMin = 0
f.math.OverbarExtraAscender = 0
f.math.OverbarVerticalGap = 0
f.math.StretchStackBottomShiftDown = 0
f.math.StretchStackGapAboveMin = 0
f.math.StretchStackGapBelowMin = 0
f.math.StretchStackTopShiftUp = 0
f.math.UnderbarExtraDescender = 0
f.math.UnderbarVerticalGap = 0
f.math.UpperLimitBaselineRiseMin = 0
f.math.UpperLimitGapMin = 0
mathfont.save(f)
v = 11 * mathfont.em
f = mathfont.create("limits-lowerlimitgapmin%d" % v)
mathfont.createSquareGlyph(f, nArySumCodePoint)
f.math.LowerLimitBaselineDropMin = 0
f.math.LowerLimitGapMin = v
f.math.OverbarExtraAscender = 0
f.math.OverbarVerticalGap = 0
# Set parameters for accent tests so that we only have large gap when
# overscript is an accent.
font.math.UpperLimitBaselineRiseMin = 0
font.math.StretchStackTopShiftUp = 0
font.math.AccentBaseHeight = 2 * mathfont.em
font.math.OverbarVerticalGap = 0
mathfont.createSizeVariants(font, True)
# Ensure a glyph exists for the combining characters that are handled specially
# in the specification:
# U+0338 COMBINING LONG SOLIDUS OVERLAY
# U+20D2 COMBINING LONG VERTICAL LINE OVERLAY
for combining_character in [0x338, 0x20D2]:
mathfont.createSquareGlyph(font, combining_character)
for key in operatorDictionary:
value = operatorDictionary[key]
for c in value["characters"]:
if c in font:
continue
if c == NonBreakingSpace:
g = font.createChar(c)
mathfont.drawRectangleGlyph(g, mathfont.em, mathfont.em // 3, 0)
else:
mathfont.createSquareGlyph(font, c)
mathfont.createStretchy(font, c, c in inlineAxisOperators)
mathfont.save(font)
# Generate the python file.
#!/usr/bin/python
from utils import mathfont
import fontforge
arrowCodePoint = 0x2192 # horizontal stretch operator
v = 3 * mathfont.em
f = mathfont.create("stretchstack-bottomshiftdown%d" % v)
mathfont.createSquareGlyph(f, arrowCodePoint)
f.math.LowerLimitBaselineDropMin = 0
f.math.LowerLimitGapMin = 0
f.math.OverbarExtraAscender = 0
f.math.OverbarVerticalGap = 0
f.math.StretchStackBottomShiftDown = v
f.math.StretchStackGapAboveMin = 0
f.math.StretchStackGapBelowMin = 0
f.math.StretchStackTopShiftUp = 0
f.math.UnderbarExtraDescender = 0
f.math.UnderbarVerticalGap = 0
f.math.UpperLimitBaselineRiseMin = 0
f.math.UpperLimitGapMin = 0
mathfont.save(f)
v = 11 * mathfont.em
f = mathfont.create("stretchstack-gapbelowmin%d" % v)
mathfont.createSquareGlyph(f, arrowCodePoint)
f.math.LowerLimitBaselineDropMin = 0
f.math.LowerLimitGapMin = 0
f.math.OverbarExtraAscender = 0
f.math.OverbarVerticalGap = 0
#!/usr/bin/python
from utils import mathfont
import fontforge
breveCodePoint = 0x2D8 # accent operator
degreeCodePoint = 0xB0 # nonaccent operator
accentBaseHeight = 4 * mathfont.em
v = 3 * mathfont.em
f = mathfont.create("underover-accentbaseheight%d-overbarextraascender%d" % (accentBaseHeight, v))
mathfont.createSquareGlyph(f, breveCodePoint)
mathfont.createSquareGlyph(f, degreeCodePoint)
f.math.AccentBaseHeight = accentBaseHeight
f.math.LowerLimitBaselineDropMin = 0
f.math.LowerLimitGapMin = 0
f.math.OverbarExtraAscender = v
f.math.OverbarVerticalGap = 0
f.math.StretchStackBottomShiftDown = 0
f.math.StretchStackGapAboveMin = 0
f.math.StretchStackGapBelowMin = 0
f.math.StretchStackTopShiftUp = 0
f.math.UnderbarExtraDescender = 0
f.math.UnderbarVerticalGap = 0
f.math.UpperLimitBaselineRiseMin = 0
f.math.UpperLimitGapMin = 0
mathfont.save(f)
v = 11 * mathfont.em
f = mathfont.create("underover-accentbaseheight%d-overbarverticalgap%d" % (accentBaseHeight, v))
mathfont.createSquareGlyph(f, breveCodePoint)
#!/usr/bin/python
from utils import mathfont
import fontforge
breveCodePoint = 0x2D8 # accent operator
degreeCodePoint = 0xB0 # nonaccent operator
accentBaseHeight = 4 * mathfont.em
v = 3 * mathfont.em
f = mathfont.create("underover-accentbaseheight%d-overbarextraascender%d" %
(accentBaseHeight, v))
mathfont.createSquareGlyph(f, breveCodePoint)
mathfont.createSquareGlyph(f, degreeCodePoint)
f.math.AccentBaseHeight = accentBaseHeight
f.math.LowerLimitBaselineDropMin = 0
f.math.LowerLimitGapMin = 0
f.math.OverbarExtraAscender = v
f.math.OverbarVerticalGap = 0
f.math.StretchStackBottomShiftDown = 0
f.math.StretchStackGapAboveMin = 0
f.math.StretchStackGapBelowMin = 0
f.math.StretchStackTopShiftUp = 0
f.math.UnderbarExtraDescender = 0
f.math.UnderbarVerticalGap = 0
f.math.UpperLimitBaselineRiseMin = 0
f.math.UpperLimitGapMin = 0
mathfont.save(f)
v = 11 * mathfont.em
f = mathfont.create("underover-accentbaseheight%d-overbarverticalgap%d" %
#!/usr/bin/env python3
from utils import mathfont
import fontforge
verticalArrowCodePoint = 0x21A8
v1 = 5 * mathfont.em
v2 = 14 * mathfont.em
f = mathfont.create("axisheight%d-verticalarrow%d" % (v1, v2),
"Copyright (c) 2016 MathML Association")
f.math.AxisHeight = v1
f.math.MinConnectorOverlap = 0
mathfont.createSquareGlyph(f, verticalArrowCodePoint)
g = f.createChar(-1, "size1")
mathfont.drawRectangleGlyph(g, mathfont.em, v2 / 2, 0)
g = f.createChar(-1, "size2")
mathfont.drawRectangleGlyph(g, mathfont.em, v2, 0)
g = f.createChar(-1, "bot")
mathfont.drawRectangleGlyph(g, mathfont.em, v2 + v1, 0)
g = f.createChar(-1, "ext")
mathfont.drawRectangleGlyph(g, mathfont.em, mathfont.em, 0)
f[verticalArrowCodePoint].verticalVariants = "uni21A8 size1 size2"
# Part: (glyphName, isExtender, startConnector, endConnector, fullAdvance)
f[verticalArrowCodePoint].verticalComponents = \
(("bot", False, 0, mathfont.em, v2 + v1), ("ext", True, mathfont.em, mathfont.em, mathfont.em))
mathfont.save(f)
#!/usr/bin/python
from utils import mathfont
import fontforge
arrowCodePoint = 0x2192 # horizontal stretch operator
v = 3 * mathfont.em
f = mathfont.create("stretchstack-bottomshiftdown%d" % v,
"Copyright (c) 2016 MathML Association")
mathfont.createSquareGlyph(f, arrowCodePoint)
f.math.LowerLimitBaselineDropMin = 0
f.math.LowerLimitGapMin = 0
f.math.OverbarExtraAscender = 0
f.math.OverbarVerticalGap = 0
f.math.StretchStackBottomShiftDown = v
f.math.StretchStackGapAboveMin = 0
f.math.StretchStackGapBelowMin = 0
f.math.StretchStackTopShiftUp = 0
f.math.UnderbarExtraDescender = 0
f.math.UnderbarVerticalGap = 0
f.math.UpperLimitBaselineRiseMin = 0
f.math.UpperLimitGapMin = 0
mathfont.save(f)
v = 11 * mathfont.em
f = mathfont.create("stretchstack-gapbelowmin%d" % v,
"Copyright (c) 2016 MathML Association")
mathfont.createSquareGlyph(f, arrowCodePoint)
f.math.LowerLimitBaselineDropMin = 0
f.math.LowerLimitGapMin = 0
font.math.LowerLimitGapMin = 0 font.math.StretchStackBottomShiftDown = 0 font.math.StretchStackGapAboveMin = 0 font.math.UnderbarVerticalGap = 0 font.math.UnderbarExtraDescender = 0 font.math.UpperLimitBaselineRiseMin = 0 font.math.UpperLimitGapMin = 0 font.math.StretchStackTopShiftUp = 0 font.math.StretchStackGapBelowMin = 0 font.math.OverbarVerticalGap = 0 font.math.AccentBaseHeight = 0 font.math.OverbarExtraAscender = 0 # These two characters will be stretchable in both directions. horizontalArrow = 0x295A # LEFTWARDS HARPOON WITH BARB UP FROM BAR verticalArrow = 0x295C # UPWARDS HARPOON WITH BARB RIGHT FROM BAR mathfont.createSizeVariants(font) # Add stretchy vertical and horizontal constructions for the horizontal arrow. mathfont.createSquareGlyph(font, horizontalArrow) mathfont.createStretchy(font, horizontalArrow, True) mathfont.createStretchy(font, horizontalArrow, False) # Add stretchy vertical and horizontal constructions for the vertical arrow. mathfont.createSquareGlyph(font, verticalArrow) mathfont.createStretchy(font, verticalArrow, True) mathfont.createStretchy(font, verticalArrow, False) mathfont.save(font)
#!/usr/bin/python
from utils import mathfont
import fontforge
verticalArrowCodePoint = 0x21A8
v1 = 5 * mathfont.em
v2 = 14 * mathfont.em
f = mathfont.create("axisheight%d-verticalarrow%d" % (v1, v2))
f.math.AxisHeight = v1
mathfont.createSquareGlyph(f, verticalArrowCodePoint)
g = f.createChar(-1, "size1")
mathfont.drawRectangleGlyph(g, mathfont.em, v2 / 2, 0)
g = f.createChar(-1, "size2")
mathfont.drawRectangleGlyph(g, mathfont.em, v2, 0)
g = f.createChar(-1, "bot")
mathfont.drawRectangleGlyph(g, mathfont.em, v2 + v1, 0)
g = f.createChar(-1, "ext")
mathfont.drawRectangleGlyph(g, mathfont.em, mathfont.em, 0)
f[verticalArrowCodePoint].verticalVariants = "uni21A8 size1 size2"
f[verticalArrowCodePoint].verticalComponents = \
(("bot", False, 0, 0, mathfont.em), ("ext", True, 0, 0, mathfont.em));
mathfont.save(f)
