def _(values: FontList, value: str, key: KeyType, signal: Callable) \
-> QComboBox:
class FontModel(QStringListModel):
def data(self, index, role=Qt.DisplayRole):
if role == Qt.AccessibleDescriptionRole \
and super().data(index, Qt.DisplayRole) == "":
return "separator"
value = super().data(index, role)
if role == Qt.DisplayRole and value.startswith("."):
value = value[1:]
return value
def flags(self, index):
if index.data(Qt.DisplayRole) == "separator":
return Qt.NoItemFlags
else:
return super().flags(index)
combo = QComboBox()
model = FontModel(values)
combo.setModel(model)
combo.setCurrentIndex(values.index(value))
combo.currentIndexChanged.connect(lambda i: signal.emit(key, values[i]))
combo.setItemDelegate(_ComboBoxListDelegate())
return combo
