m3_lightmeter/lib/providers/equipment_profile_provider.dart
2023-03-21 00:03:19 +03:00

116 lines
3.1 KiB
Dart

import 'package:flutter/material.dart';
import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
import 'package:uuid/uuid.dart';
class EquipmentProfileProvider extends StatefulWidget {
final Widget child;
const EquipmentProfileProvider({required this.child, super.key});
static EquipmentProfileProviderState of(BuildContext context) {
return context.findAncestorStateOfType<EquipmentProfileProviderState>()!;
}
@override
State<EquipmentProfileProvider> createState() => EquipmentProfileProviderState();
}
class EquipmentProfileProviderState extends State<EquipmentProfileProvider> {
final List<EquipmentProfileData> _profiles = [];
late EquipmentProfileData _selectedProfile = _profiles.isNotEmpty
? _profiles.first
: const EquipmentProfileData(
id: 'default',
name: '',
apertureValues: apertureValues,
ndValues: ndValues,
shutterSpeedValues: shutterSpeedValues,
isoValues: isoValues,
);
@override
Widget build(BuildContext context) {
return EquipmentProfiles(
profiles: _profiles,
child: EquipmentProfile(
data: _selectedProfile,
child: widget.child,
),
);
}
void setProfile(EquipmentProfileData data) {
setState(() {
_selectedProfile = data;
});
}
/// Creates a default equipment profile
void addProfile(String name) {
_profiles.add(EquipmentProfileData(
id: const Uuid().v1(),
name: name,
apertureValues: apertureValues,
ndValues: ndValues,
shutterSpeedValues: shutterSpeedValues,
isoValues: isoValues,
));
setState(() {});
}
void updateProdile(EquipmentProfileData data) {
final indexToUpdate = _profiles.indexWhere((element) => element.id == data.id);
if (indexToUpdate >= 0) {
_profiles[indexToUpdate] = data;
setState(() {});
}
}
void deleteProfile(EquipmentProfileData data) {
_profiles.remove(data);
setState(() {});
}
}
class EquipmentProfiles extends InheritedWidget {
final List<EquipmentProfileData> profiles;
const EquipmentProfiles({
required this.profiles,
required super.child,
super.key,
});
static List<EquipmentProfileData>? of(BuildContext context, {bool listen = true}) {
if (listen) {
return context.dependOnInheritedWidgetOfExactType<EquipmentProfiles>()?.profiles;
} else {
return context.findAncestorWidgetOfExactType<EquipmentProfiles>()?.profiles;
}
}
@override
bool updateShouldNotify(EquipmentProfiles oldWidget) => true;
}
class EquipmentProfile extends InheritedWidget {
final EquipmentProfileData? data;
const EquipmentProfile({
required this.data,
required super.child,
super.key,
});
static EquipmentProfileData? of(BuildContext context, {bool listen = true}) {
if (listen) {
return context.dependOnInheritedWidgetOfExactType<EquipmentProfile>()?.data;
} else {
return context.findAncestorWidgetOfExactType<EquipmentProfile>()?.data;
}
}
@override
bool updateShouldNotify(EquipmentProfile oldWidget) => true;
}