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[FilmEditScreen] added validation

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This commit is contained in:
Vadim 2024-10-22 18:34:23 +02:00
parent b7f0305055
commit 1eebc7008e
8 changed files with 229 additions and 41 deletions
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6
lib/l10n/intl_en.arb
View file

@ -150,5 +150,9 @@
}
}
},
"close": "Close"
"close": "Close",
"filmFormula": "Formula",
"filmFormulaExponential": "T=t^Rf",
"filmFormulaExponentialRf": "Rf",
"name": "Name"
}

3
lib/res/theme.dart
View file

@ -67,7 +67,8 @@ ThemeData themeFrom(Color primaryColor, Brightness brightness) {
style: ListTileStyle.list,
iconColor: scheme.onSurface,
textColor: scheme.onSurface,
subtitleTextStyle: theme.textTheme.bodyMedium!.copyWith(color: scheme.onSurfaceVariant),
subtitleTextStyle: theme.textTheme.bodyMedium,
leadingAndTrailingTextStyle: theme.textTheme.bodyMedium,
),
);
}

54
lib/screens/film_edit/bloc_film_edit.dart
View file

@ -4,11 +4,18 @@ 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> {
final FilmExponential _originalFilm;
FilmExponential _newFilm;
FilmEditBloc(FilmExponential film)
: super(
: _originalFilm = film,
_newFilm = film,
super(
FilmEditState(
film,
IsoValue.values.firstWhere((element) => element.value == film.iso),
name: film.name,
isoValue: IsoValue.values.firstWhere((element) => element.value == film.iso),
exponent: film.exponent,
canSave: false,
),
) {
on<FilmEditEvent>(
@ -27,18 +34,47 @@ class FilmEditBloc extends Bloc<FilmEditEvent, FilmEditState> {
);
}
Future<void> _onNameChanged(FilmEditNameChangedEvent event, Emitter emit) async {}
Future<void> _onIsoChanged(FilmEditIsoChangedEvent event, Emitter emit) async {
Future<void> _onNameChanged(FilmEditNameChangedEvent event, Emitter emit) async {
_newFilm = _newFilm.copyWith(name: event.name);
emit(
FilmEditState(
state.film.copyWith(iso: event.iso.value),
event.iso,
name: event.name,
isoValue: state.isoValue,
exponent: state.exponent,
canSave: _canSave(event.name, state.exponent),
),
);
}
Future<void> _onExpChanged(FilmEditExpChangedEvent event, Emitter emit) async {}
Future<void> _onIsoChanged(FilmEditIsoChangedEvent event, Emitter emit) async {
_newFilm = _newFilm.copyWith(iso: event.iso.value);
emit(
FilmEditState(
name: state.name,
isoValue: event.iso,
exponent: state.exponent,
canSave: _canSave(state.name, state.exponent),
),
);
}
Future<void> _onExpChanged(FilmEditExpChangedEvent event, Emitter emit) async {
if (event.exponent != null) {
_newFilm = _newFilm.copyWith(exponent: event.exponent);
}
emit(
FilmEditState(
name: state.name,
isoValue: state.isoValue,
exponent: event.exponent,
canSave: _canSave(state.name, event.exponent),
),
);
}
Future<void> _onSave(FilmEditSaveEvent _, Emitter emit) async {}
bool _canSave(String name, double? exponent) {
return name.isNotEmpty && exponent != null && _newFilm != _originalFilm;
}
}

65
lib/screens/film_edit/components/exponential_formula_input/widget_input_exponential_formula.dart Normal file
View file

@ -0,0 +1,65 @@
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:lightmeter/generated/l10n.dart';
import 'package:lightmeter/res/dimens.dart';
import 'package:lightmeter/screens/shared/text_field/widget_text_field.dart';
class ExponentialFormulaInput extends StatefulWidget {
final double? value;
final ValueChanged<double?> onChanged;
const ExponentialFormulaInput({
super.key,
required this.value,
required this.onChanged,
});
@override
State<ExponentialFormulaInput> createState() => _ExponentialFormulaInputState();
}
class _ExponentialFormulaInputState extends State<ExponentialFormulaInput> {
TextStyle get style =>
Theme.of(context).textTheme.bodyMedium!.copyWith(color: Theme.of(context).listTileTheme.textColor);
@override
Widget build(BuildContext context) {
return Column(
children: [
ListTile(
leading: const Icon(Icons.show_chart),
title: Text(S.of(context).filmFormula),
trailing: Text(S.of(context).filmFormulaExponential),
),
ListTile(
leading: const SizedBox(),
title: Text(
S.of(context).filmFormulaExponentialRf,
style: Theme.of(context).listTileTheme.titleTextStyle,
),
trailing: SizedBox(
width: _textInputWidth(context),
child: LightmeterTextField(
initialValue: widget.value?.toString() ?? '',
inputFormatters: [FilteringTextInputFormatter.allow(RegExp("[0-9.]"))],
onChanged: (value) {
widget.onChanged(double.tryParse(value));
},
textAlign: TextAlign.end,
style: style,
),
),
),
],
);
}
double _textInputWidth(BuildContext context) {
final textPainter = TextPainter(
text: TextSpan(text: widget.value.toString(), style: style),
maxLines: 1,
textDirection: TextDirection.ltr,
)..layout();
return textPainter.maxIntrinsicWidth + Dimens.grid4;
}
}

4
lib/screens/film_edit/event_film_edit.dart
View file

@ -17,9 +17,9 @@ class FilmEditIsoChangedEvent extends FilmEditEvent {
}
class FilmEditExpChangedEvent extends FilmEditEvent {
final double exp;
final double? exponent;
const FilmEditExpChangedEvent(this.exp);
const FilmEditExpChangedEvent(this.exponent);
}
class FilmEditSaveEvent extends FilmEditEvent {

98
lib/screens/film_edit/screen_film_edit.dart
View file

@ -1,13 +1,15 @@
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:lightmeter/generated/l10n.dart';
import 'package:lightmeter/res/dimens.dart';
import 'package:lightmeter/screens/film_edit/bloc_film_edit.dart';
import 'package:lightmeter/screens/film_edit/components/exponential_formula_input/widget_input_exponential_formula.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:lightmeter/screens/shared/text_field/widget_text_field.dart';
import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
class FilmEditScreen extends StatefulWidget {
@ -22,37 +24,54 @@ class _FilmEditScreenState extends State<FilmEditScreen> {
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) {},
),
buildWhen: (previous, current) => previous.name != current.name,
builder: (_, state) => Text(state.name),
),
appBarActions: [
IconButton(
onPressed: () {},
icon: const Icon(Icons.save),
BlocBuilder<FilmEditBloc, FilmEditState>(
buildWhen: (previous, current) => previous.canSave != current.canSave,
builder: (context, state) => IconButton(
onPressed: state.canSave ? () {} : null,
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));
},
child: Padding(
padding: const EdgeInsets.fromLTRB(
Dimens.paddingM,
0,
Dimens.paddingM,
Dimens.paddingM,
),
),
),
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()),
child: Card(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: Dimens.paddingM),
child: Column(
children: [
_NameFieldBuilder(),
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));
},
),
),
BlocBuilder<FilmEditBloc, FilmEditState>(
buildWhen: (previous, current) => previous.exponent != current.exponent,
builder: (context, state) => ExponentialFormulaInput(
value: state.exponent,
onChanged: (value) {
context.read<FilmEditBloc>().add(FilmEditExpChangedEvent(value));
},
),
),
],
),
),
),
),
),
@ -62,6 +81,33 @@ class _FilmEditScreenState extends State<FilmEditScreen> {
}
}
class _NameFieldBuilder extends StatelessWidget {
const _NameFieldBuilder();
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.only(
left: Dimens.paddingM,
top: Dimens.paddingS / 2,
right: Dimens.paddingL,
bottom: Dimens.paddingS / 2,
),
child: BlocBuilder<FilmEditBloc, FilmEditState>(
buildWhen: (previous, current) => previous.name != current.name,
builder: (context, state) => LightmeterTextField(
initialValue: state.name,
onChanged: (value) {
context.read<FilmEditBloc>().add(FilmEditNameChangedEvent(value));
},
style: Theme.of(context).listTileTheme.titleTextStyle,
leading: const Icon(Icons.edit_outlined),
),
),
);
}
}
class _IsoPickerListTile extends StatelessWidget {
final IsoValue selected;
final ValueChanged<IsoValue> onChanged;

11
lib/screens/film_edit/state_film_edit.dart
View file

@ -1,8 +1,15 @@
import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
class FilmEditState {
final FilmExponential film;
final String name;
final IsoValue isoValue;
final double? exponent;
final bool canSave;
const FilmEditState(this.film, this.isoValue);
const FilmEditState({
required this.name,
required this.isoValue,
required this.exponent,
required this.canSave,
});
}

29
lib/screens/shared/text_field/widget_text_field.dart Normal file
View file

@ -0,0 +1,29 @@
import 'package:flutter/material.dart';
class LightmeterTextField extends TextFormField {
LightmeterTextField({
super.controller,
super.focusNode,
super.initialValue,
super.inputFormatters,
super.onChanged,
super.style,
super.textAlign,
Widget? leading,
}) : super(
autovalidateMode: AutovalidateMode.onUserInteraction,
maxLines: 1,
decoration: InputDecoration(
contentPadding: EdgeInsets.zero,
errorStyle: const TextStyle(fontSize: 0),
icon: leading,
),
validator: (value) {
if (value == null || value.isEmpty) {
return '';
} else {
return null;
}
},
);
}