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# Helper for making variants of a glyph.
#
# e.g. we have 10 glyphs based on "I" and we now want to
# create an alternate "I" called "I.1".
#
# 1. We first make our I.1 manually
# 2. Next we generate all other glyphs:
# Idieresisacute=Idieresisacute.1
# Istroke=Istroke.1
# Itildebelow=Itildebelow.1
# Igrave=Igrave.1
# Iacute=Iacute.1
# Icircumflex=Icircumflex.1
# Itilde=Itilde.1
# Imacron=Imacron.1
# Ibreve=Ibreve.1
# Iogonek=Iogonek.1
# Which we paset into the "create glyphs" window
# 3. We now have 10 new glyphs.
# 4. Select all those new glyphs
# 5. Open the macro window
# 6. Paste this script and modify `prevcn` and `newcn`
# 7. Run it
#
prevcn = "I" # component to find and replace
newcn = "I.1" # replacement component
font = Glyphs.font
font.disableUpdateInterface()
try:
for layer in font.selectedLayers:
g = None
if isinstance(layer, GSGlyph):
g = layer
else:
g = layer.parent
print(g)
g.beginUndo()
try:
for master in font.masters:
layer = g.layers[master.id]
print(layer)
if len(layer.components) != 1:
print("not a single component %s" % layer)
continue
layer.components[0].decompose()
for c in layer.components:
if c.name == prevcn:
print("replace %s with %s" % (prevcn, newcn))
c.name = newcn
finally:
g.endUndo()
finally:
font.enableUpdateInterface()
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