configurator.py 文件源码

def new_button_press(self):
        if self.treeview.focus() == "" and self.root_element is not None:
            tkMessageBox.showwarning(None, "No parent element selected.")
        else: 
            if self.treeview.focus() == "" and self.root_element is None:
                element = CreateRootDialog(self).element
                if isinstance(element, SeqLib):
                    EditDialog(self, self, element)
                self.root_element = element
            else:
                element = self.create_new_element()
                EditDialog(self, self, element)

            # refresh the treeview and re-assign treeview id's
            self.refresh_treeview()

            # select the newly added element if it was successfully added
            if element.treeview_id in self.element_dict.keys():
                self.treeview.focus(element.treeview_id)
                self.treeview.selection_set(element.treeview_id)
            else:
                if element.parent is not None:
                    self.treeview.focus(element.parent.treeview_id)
                    self.treeview.selection_set(element.parent.treeview_id)
                del element