import 'package:lightmeter/models/iso_value.dart'; import 'package:lightmeter/models/nd_value.dart'; abstract class MeteringEvent { const MeteringEvent(); } class IsoChangedEvent extends MeteringEvent { final IsoValue isoValue; const IsoChangedEvent(this.isoValue); } class NdChangedEvent extends MeteringEvent { final NdValue ndValue; const NdChangedEvent(this.ndValue); } class MeasureEvent extends MeteringEvent { const MeasureEvent(); }