def bzs_to_glyph(bzs, glyph): coordinates = [] flags = [] endPtsOfContours = [] for sp in bzs: for i in range(len(sp)): lastbz = sp[i - 1] bz = sp[i] if len(bz) != 3 or len(lastbz) != 3 or lerppt(0.5, lastbz[1], bz[1]) != bz[0]: coordinates.append(pt_to_int(bz[0])) flags.append(1) if len(bz) == 3: coordinates.append(pt_to_int(bz[1])) flags.append(0) endPtsOfContours.append(len(coordinates) - 1) glyph.coordinates = _g_l_y_f.GlyphCoordinates(coordinates) glyph.flags = flags glyph.endPtsOfContours = endPtsOfContours
def instantiateGvarGlyph(varfont, glyphname, location, optimize=True):
glyf = varfont["glyf"]
coordinates, ctrl = glyf.getCoordinatesAndControls(glyphname, varfont)
endPts = ctrl.endPts
gvar = varfont["gvar"]
# when exporting to TTX, a glyph with no variations is omitted; thus when loading
# a TTFont from TTX, a glyph that's present in glyf table may be missing from gvar.
tupleVarStore = gvar.variations.get(glyphname)
if tupleVarStore:
defaultDeltas = instantiateTupleVariationStore(
tupleVarStore, location, coordinates, endPts
)
if defaultDeltas:
coordinates += _g_l_y_f.GlyphCoordinates(defaultDeltas)
# setCoordinates also sets the hmtx/vmtx advance widths and sidebearings from
# the four phantom points and glyph bounding boxes.
# We call it unconditionally even if a glyph has no variations or no deltas are
# applied at this location, in case the glyph's xMin and in turn its sidebearing
# have changed. E.g. a composite glyph has no deltas for the component's (x, y)
# offset nor for the 4 phantom points (e.g. it's monospaced). Thus its entry in
# gvar table is empty; however, the composite's base glyph may have deltas
# applied, hence the composite's bbox and left/top sidebearings may need updating
# in the instanced font.
glyf.setCoordinates(glyphname, coordinates, varfont)
if not tupleVarStore:
if glyphname in gvar.variations:
del gvar.variations[glyphname]
return
if optimize:
isComposite = glyf[glyphname].isComposite()
for var in tupleVarStore:
var.optimize(coordinates, endPts, isComposite)