base.py 文件源码

def __init__(self, on_change: callable, choices: list = None, parent=None, model: QStandardItemModel = None):
        QComboBox.__init__(self, parent=parent)
        self.on_change = on_change
        if choices:
            self.addItems(choices)
        if model:
            self.setModel(model)
            # noinspection PyUnresolvedReferences
            model.modelAboutToBeReset.connect(self.begin_reset_model)
            # noinspection PyUnresolvedReferences
            model.modelReset.connect(self.end_reset_model)
        # noinspection PyUnresolvedReferences
        self.activated.connect(on_change)
        self._current_text = None