#--------- connections to GUI ----------------
dic = {
"on_exit_menu_activate": self._on_user_exit,
"on_main_window_destroy": self._on_user_exit,
"on_categoryView_select_row": self._on_click_category,
"on_unitsView__on_click_unit_column": self._on_click_unit_column,
#--------- connections to GUI ----------------
dic = {
"on_exit_menu_activate": self._on_user_exit,
"on_main_window_destroy": self._on_user_exit,
"on_categoryView_select_row": self._on_click_category,
"on_unitsView__on_click_unit_column": self._on_click_unit_column,