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ListModel.clear(): Do nothing if already no data

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miruka 2019-05-09 16:11:15 -04:00
parent df088a8daa
commit 17fdaf6bd6
1 changed files with 3 additions and 0 deletions
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3
harmonyqml/backend/model/list_model.py
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@ -357,6 +357,9 @@ class ListModel(QAbstractListModel):
@pyqtSlot() @pyqtSlot()
def clear(self) -> None: def clear(self) -> None:
if not self._data:
return
# Reimplemented for performance reasons (begin/endRemoveRows) # Reimplemented for performance reasons (begin/endRemoveRows)
self.beginRemoveRows(QModelIndex(), 0, len(self)) self.beginRemoveRows(QModelIndex(), 0, len(self))
self._data.clear() self._data.clear()