treemodel.py 文件源码

def setData(self, index, value, role):
        """Set the role data for the item at index to value."""
        if not index.isValid():
            return False

        node = self.getNode(index)
        column = index.column()

        if role == Qt.DisplayRole or role == Qt.EditRole:
            if column > 0 and not node.childCount():
                try:
                    node.setItemData(column, float(value))
                except ValueError:
                    return False
            else:
                node.setItemData(column, value)

        elif role == Qt.CheckStateRole:
            node.setCheckState(value)
            if value == Qt.Checked:
                self.nodeCheckStateChanged.emit(index)

        self.dataChanged.emit(index, index)

        return True