} else if (strcmp((const char *)selection_data->data, "or_e.png")==0) {
a = new Or(); a->is_logic = true;
} else if (strcmp((const char *)selection_data->data, "not_e.png")==0) {
} else if (strcmp((const char *)selection_data->data, "or_e.png")==0) {
a = new Or(); a->is_logic = true;
} else if (strcmp((const char *)selection_data->data, "not_e.png")==0) {