panelBuilder method
Implementation
@override
Widget panelBuilder(ProgrammingBlockController? blockController) => Row(
mainAxisSize: MainAxisSize.min,
children: [
const NumberInputTarget(
blockInputTargetKey: 'OPERATOR_A',
),
AritmeticOperationSelector(),
const NumberInputTarget(
blockInputTargetKey: 'OPERATOR_B',
),
],
);