def compile(self, ttFont):
if ttFont.recalcBBoxes:
# For TT-flavored fonts, xMin, yMin, xMax and yMax are set in table__m_a_x_p.recalc().
if 'CFF ' in ttFont:
topDict = ttFont['CFF '].cff.topDictIndex[0]
self.xMin, self.yMin, self.xMax, self.yMax = intRect(
topDict.FontBBox)
elif 'CFF2' in ttFont:
topDict = ttFont['CFF2'].cff.topDictIndex[0]
charStrings = topDict.CharStrings
fontBBox = None
for charString in charStrings.values():
bounds = charString.calcBounds(charStrings)
if bounds is not None:
if fontBBox is not None:
fontBBox = unionRect(fontBBox, bounds)
else:
fontBBox = bounds
if fontBBox is not None:
self.xMin, self.yMin, self.xMax, self.yMax = intRect(
fontBBox)
if ttFont.recalcTimestamp:
self.modified = timestampNow()
data = sstruct.pack(headFormat, self)
return data
def compile(self, ttFont):
if ttFont.recalcBBoxes:
# For TT-flavored fonts, xMin, yMin, xMax and yMax are set in table__m_a_x_p.recalc().
if 'CFF ' in ttFont:
topDict = ttFont['CFF '].cff.topDictIndex[0]
self.xMin, self.yMin, self.xMax, self.yMax = intRect(
topDict.FontBBox)
if ttFont.recalcTimestamp:
self.modified = timestampNow()
data = sstruct.pack(headFormat, self)
return data
def buildClipBox(clipBox: _ClipBoxInput) -> ot.ClipBox:
if isinstance(clipBox, ot.ClipBox):
return clipBox
n = len(clipBox)
clip = ot.ClipBox()
if n not in (4, 5):
raise ValueError(f"Invalid ClipBox: expected 4 or 5 values, found {n}")
clip.xMin, clip.yMin, clip.xMax, clip.yMax = intRect(clipBox[:4])
clip.Format = int(n == 5) + 1
if n == 5:
clip.VarIndexBase = int(clipBox[4])
return clip
def estimateCOLRv1BoundingBoxes(vcFont, ttFont, neutralOnly):
from fontTools.pens.ttGlyphPen import TTGlyphPointPen
from fontTools.pens.boundsPen import ControlBoundsPen
locations = [{}]
if not neutralOnly:
for axis in ttFont["fvar"].axes:
if axis.flags & 0x0001:
# hidden axis
continue
values = {0}
if axis.minValue < axis.defaultValue:
values.add(-1)
if axis.defaultValue < axis.maxValue:
values.add(1)
locations = [
dictUpdate(loc, axis.axisTag, v) for loc in locations
for v in sorted(values)
]
glyfTable = ttFont["glyf"]
gvarTable = ttFont["gvar"]
hmtxTable = ttFont["hmtx"]
# TODO: fix tsb if we have "vmtx"
for glyphName in sorted(vcFont.keys()):
glyph = vcFont[glyphName]
if not glyph.components or not glyph.outline.isEmpty():
continue
# calculate the bounding box that would fit on all locations
bpen = ControlBoundsPen(None)
for loc in locations:
vcFont.drawGlyph(bpen, glyphName, loc)
gvarTable.variations.pop(glyphName, None)
pen = TTGlyphPointPen(None)
if bpen.bounds is not None:
bounds = intRect(bpen.bounds)
for pt in [bounds[:2], bounds[2:]]:
pen.beginPath()
pen.addPoint(pt, segmentType="line")
pen.endPath()
glyfTable[glyphName] = pen.glyph()
adv, lsb = hmtxTable.metrics[glyphName]
hmtxTable.metrics[glyphName] = adv, bounds[0]
def test_intRect():
assert intRect((0.9, 2.9, 3.1, 4.1)) == (0, 2, 4, 5)
def test_intRect():
assert intRect((0.9, 2.9, 3.1, 4.1)) == (0, 2, 4, 5)
