[FilmEditScreen] wip

lib/screens/film_edit/bloc_film_edit.dart

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+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:lightmeter/screens/film_edit/event_film_edit.dart';
+import 'package:lightmeter/screens/film_edit/state_film_edit.dart';
+import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
+
+class FilmEditBloc extends Bloc<FilmEditEvent, FilmEditState> {
+  FilmEditBloc(FilmExponential film)
+      : super(
+          FilmEditState(
+            film,
+            IsoValue.values.firstWhere((element) => element.value == film.iso),
+          ),
+        ) {
+    on<FilmEditEvent>(
+      (event, emit) {
+        switch (event) {
+          case final FilmEditNameChangedEvent e:
+            _onNameChanged(e, emit);
+          case final FilmEditIsoChangedEvent e:
+            _onIsoChanged(e, emit);
+          case final FilmEditExpChangedEvent e:
+            _onExpChanged(e, emit);
+          case FilmEditSaveEvent():
+            _onSave(event, emit);
+        }
+      },
+    );
+  }
+
+  Future<void> _onNameChanged(FilmEditNameChangedEvent event, Emitter emit) async {}
+
+  Future<void> _onIsoChanged(FilmEditIsoChangedEvent event, Emitter emit) async {
+    emit(
+      FilmEditState(
+        state.film.copyWith(iso: event.iso.value),
+        event.iso,
+      ),
+    );
+  }
+
+  Future<void> _onExpChanged(FilmEditExpChangedEvent event, Emitter emit) async {}
+
+  Future<void> _onSave(FilmEditSaveEvent _, Emitter emit) async {}
+}

lib/screens/film_edit/event_film_edit.dart

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+import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
+
+sealed class FilmEditEvent {
+  const FilmEditEvent();
+}
+
+class FilmEditNameChangedEvent extends FilmEditEvent {
+  final String name;
+
+  const FilmEditNameChangedEvent(this.name);
+}
+
+class FilmEditIsoChangedEvent extends FilmEditEvent {
+  final IsoValue iso;
+
+  const FilmEditIsoChangedEvent(this.iso);
+}
+
+class FilmEditExpChangedEvent extends FilmEditEvent {
+  final double exp;
+
+  const FilmEditExpChangedEvent(this.exp);
+}
+
+class FilmEditSaveEvent extends FilmEditEvent {
+  const FilmEditSaveEvent();
+}

lib/screens/film_edit/flow_film_edit.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:lightmeter/screens/film_edit/bloc_film_edit.dart';
+import 'package:lightmeter/screens/film_edit/screen_film_edit.dart';
+import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
+
+class FilmEditFlow extends StatelessWidget {
+  final FilmExponential film;
+
+  const FilmEditFlow(this.film, {super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocProvider(
+      create: (_) => FilmEditBloc(film),
+      child: const FilmEditScreen(),
+    );
+  }
+}

lib/screens/film_edit/screen_film_edit.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:lightmeter/generated/l10n.dart';
+import 'package:lightmeter/screens/film_edit/bloc_film_edit.dart';
+import 'package:lightmeter/screens/film_edit/event_film_edit.dart';
+import 'package:lightmeter/screens/film_edit/state_film_edit.dart';
+import 'package:lightmeter/screens/metering/components/shared/readings_container/components/shared/animated_dialog_picker/components/dialog_picker/widget_picker_dialog.dart';
+import 'package:lightmeter/screens/settings/components/shared/dialog_filter/widget_dialog_filter.dart';
+import 'package:lightmeter/screens/settings/components/shared/expandable_section_list/widget_expandable_section_list.dart';
+import 'package:lightmeter/screens/shared/sliver_screen/screen_sliver.dart';
+import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
+
+class FilmEditScreen extends StatefulWidget {
+  const FilmEditScreen({super.key});
+
+  @override
+  State<FilmEditScreen> createState() => _FilmEditScreenState();
+}
+
+class _FilmEditScreenState extends State<FilmEditScreen> {
+  @override
+  Widget build(BuildContext context) {
+    return SliverScreen(
+      title: BlocBuilder<FilmEditBloc, FilmEditState>(
+        buildWhen: (previous, current) => previous.film.name != current.film.name,
+        builder: (context, state) => TextFormField(
+          initialValue: state.film.name,
+          onChanged: (value) {},
+        ),
+      ),
+      appBarActions: [
+        IconButton(
+          onPressed: () {},
+          icon: const Icon(Icons.save),
+        ),
+      ],
+      slivers: [
+        SliverToBoxAdapter(
+          child: BlocBuilder<FilmEditBloc, FilmEditState>(
+            buildWhen: (previous, current) => previous.isoValue != current.isoValue,
+            builder: (context, state) => _IsoPickerListTile(
+              selected: state.isoValue,
+              onChanged: (value) {
+                context.read<FilmEditBloc>().add(FilmEditIsoChangedEvent(value));
+              },
+            ),
+          ),
+        ),
+        SliverToBoxAdapter(
+          child: BlocBuilder<FilmEditBloc, FilmEditState>(
+            buildWhen: (previous, current) => previous.film.exponent != current.film.exponent,
+            builder: (context, state) => ListTile(
+              leading: const Icon(Icons.equalizer),
+              title: Text('Formula'),
+              trailing: Text(state.film.exponent.toString()),
+            ),
+          ),
+        ),
+        SliverToBoxAdapter(child: SizedBox(height: MediaQuery.paddingOf(context).bottom)),
+      ],
+    );
+  }
+}
+
+class _IsoPickerListTile extends StatelessWidget {
+  final IsoValue selected;
+  final ValueChanged<IsoValue> onChanged;
+
+  const _IsoPickerListTile({
+    required this.selected,
+    required this.onChanged,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return ListTile(
+      leading: const Icon(Icons.iso),
+      title: Text(S.of(context).iso),
+      trailing: Text(selected.value.toString()),
+      onTap: () {
+        showDialog<IsoValue>(
+          context: context,
+          builder: (_) => Dialog(
+            child: DialogPicker<IsoValue>(
+              icon: Icons.iso,
+              title: S.of(context).iso,
+              subtitle: S.of(context).filmSpeed,
+              values: IsoValue.values,
+              initialValue: selected,
+              itemTitleBuilder: (_, value) => Text(value.value.toString()),
+              onSelect: (value) {
+                onChanged(value);
+                Navigator.of(context).pop();
+              },
+              onCancel: () {
+                Navigator.of(context).pop();
+              },
+            ),
+          ),
+        );
+      },
+    );
+  }
+}

lib/screens/film_edit/state_film_edit.dart

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+import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
+
+class FilmEditState {
+  final FilmExponential film;
+  final IsoValue isoValue;
+
+  const FilmEditState(this.film, this.isoValue);
+}