experiment_settable.py 文件源码

def update(self):
        """
        Update widget based on what's actually in the experiment.
        """

        value = getattr(self._experiment,self._settable_name)
        if self._current_value != value:

            # --------- multi value ----------
            if self._value_type == "multi":

                current_index = self._select_widget.findText(value)
                if current_index == -1:
                    err = "current value is not in the allowable values\n"
                    raise ValueError(err)
                self._select_widget.setCurrentIndex(current_index)

            # --------- bool value --------------
            elif self._value_type == bool:

                self._select_widget = QW.QCheckBox()
                self._select_widget.setChecked(value)

            # -------- other values --------------
            else:
                if self._value_type == float:
                    if value < 1/self._float_view_cutoff or value > self._float_view_cutoff:
                        val_str = "{:.8e}".format(value)
                    else:
                        val_str = "{:.8f}".format(value)
                else:
                    val_str = "{}".format(value)

                self._select_widget.setText(val_str)