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lib/screens/confirm_fuel_entry_screen.dart
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224
lib/screens/confirm_fuel_entry_screen.dart
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:intl/intl.dart';
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import 'package:provider/provider.dart';
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import '../services/app_state.dart';
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import '../services/receipt_parser.dart';
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import 'receipt_image_screen.dart';
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/// Shown right after a receipt photo is captured and OCR'd. Pre-fills
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/// whatever the parser found and lets the user review/correct every field
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/// before it's written to the data file, since OCR on a printed receipt is
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/// usually good but not perfect.
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class ConfirmFuelEntryScreen extends StatefulWidget {
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final String vehicleId;
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final File imageFile;
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final ParsedReceipt parsed;
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const ConfirmFuelEntryScreen({
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super.key,
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required this.vehicleId,
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required this.imageFile,
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required this.parsed,
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});
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@override
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State<ConfirmFuelEntryScreen> createState() => _ConfirmFuelEntryScreenState();
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}
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class _ConfirmFuelEntryScreenState extends State<ConfirmFuelEntryScreen> {
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final _formKey = GlobalKey<FormState>();
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late final TextEditingController _gallonsController;
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late final TextEditingController _priceController;
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late final TextEditingController _totalController;
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DateTime _date = DateTime.now();
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bool _saving = false;
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@override
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void initState() {
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super.initState();
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_gallonsController = TextEditingController(
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text: widget.parsed.gallons?.toStringAsFixed(3) ?? '',
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);
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_priceController = TextEditingController(
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text: widget.parsed.pricePerGallon?.toStringAsFixed(3) ?? '',
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);
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_totalController = TextEditingController(
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text: widget.parsed.totalCost?.toStringAsFixed(2) ?? '',
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);
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}
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@override
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void dispose() {
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_gallonsController.dispose();
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_priceController.dispose();
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_totalController.dispose();
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super.dispose();
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}
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void _calculateTotal() {
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final gallons = double.tryParse(_gallonsController.text);
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final price = double.tryParse(_priceController.text);
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if (gallons != null && price != null) {
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setState(() {
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_totalController.text = (gallons * price).toStringAsFixed(2);
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});
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}
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}
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Future<void> _pickDate() async {
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final pickedDate = await showDatePicker(
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context: context,
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initialDate: _date,
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firstDate: DateTime.now().subtract(const Duration(days: 365 * 5)),
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lastDate: DateTime.now(),
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);
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if (pickedDate == null || !mounted) return;
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final pickedTime = await showTimePicker(
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context: context,
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initialTime: TimeOfDay.fromDateTime(_date),
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);
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if (pickedTime == null) return;
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setState(() {
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_date = DateTime(
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pickedDate.year,
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pickedDate.month,
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pickedDate.day,
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pickedTime.hour,
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pickedTime.minute,
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);
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});
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}
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Future<void> _save() async {
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if (!_formKey.currentState!.validate()) return;
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setState(() => _saving = true);
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try {
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await context.read<AppState>().addFuelEntry(
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vehicleId: widget.vehicleId,
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date: _date,
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gallons: double.parse(_gallonsController.text),
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pricePerGallon: double.parse(_priceController.text),
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totalCost: double.parse(_totalController.text),
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receiptImage: widget.imageFile,
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);
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if (mounted) Navigator.of(context).pop();
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} finally {
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if (mounted) setState(() => _saving = false);
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}
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}
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String? _requiredDecimal(String? value) {
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if (value == null || value.trim().isEmpty) return 'Required';
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if (double.tryParse(value) == null) return 'Enter a valid number';
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return null;
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}
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@override
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Widget build(BuildContext context) {
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final dateFormat = DateFormat.yMMMd().add_jm();
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final nothingParsed = widget.parsed.gallons == null &&
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widget.parsed.pricePerGallon == null &&
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widget.parsed.totalCost == null;
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return Scaffold(
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appBar: AppBar(title: const Text('Confirm Fuel Entry')),
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body: Form(
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key: _formKey,
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child: ListView(
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padding: const EdgeInsets.all(16),
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children: [
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GestureDetector(
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onTap: () => Navigator.of(context).push(
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MaterialPageRoute(
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builder: (_) => ReceiptImageScreen(imagePath: widget.imageFile.path),
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),
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),
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child: ClipRRect(
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borderRadius: BorderRadius.circular(8),
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child: Image.file(widget.imageFile, height: 180, fit: BoxFit.cover, width: double.infinity),
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),
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),
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const SizedBox(height: 8),
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Text(
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'Tap the photo to view it full-screen.',
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style: Theme.of(context).textTheme.bodySmall,
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textAlign: TextAlign.center,
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),
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if (nothingParsed) ...[
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const SizedBox(height: 16),
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Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: Theme.of(context).colorScheme.errorContainer,
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borderRadius: BorderRadius.circular(8),
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),
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child: Row(
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children: [
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Icon(Icons.warning_amber_rounded, color: Theme.of(context).colorScheme.onErrorContainer),
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const SizedBox(width: 8),
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Expanded(
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child: Text(
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"Couldn't automatically read this receipt. Please enter the values manually.",
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style: TextStyle(color: Theme.of(context).colorScheme.onErrorContainer),
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),
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),
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],
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),
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),
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],
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const SizedBox(height: 16),
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ListTile(
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contentPadding: EdgeInsets.zero,
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title: const Text('Date & time'),
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subtitle: Text(dateFormat.format(_date)),
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trailing: const Icon(Icons.edit_calendar_outlined),
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onTap: _pickDate,
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),
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const SizedBox(height: 8),
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TextFormField(
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controller: _gallonsController,
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decoration: const InputDecoration(labelText: 'Gallons', suffixText: 'gal'),
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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validator: _requiredDecimal,
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),
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const SizedBox(height: 12),
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TextFormField(
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controller: _priceController,
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decoration: const InputDecoration(labelText: 'Price per gallon', prefixText: '\$'),
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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validator: _requiredDecimal,
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),
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const SizedBox(height: 12),
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TextFormField(
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controller: _totalController,
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decoration: InputDecoration(
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labelText: 'Total cost',
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prefixText: '\$',
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suffixIcon: IconButton(
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icon: const Icon(Icons.calculate_outlined),
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tooltip: 'Calculate from gallons × price',
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onPressed: _calculateTotal,
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),
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),
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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validator: _requiredDecimal,
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),
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const SizedBox(height: 24),
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FilledButton(
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onPressed: _saving ? null : _save,
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child: _saving
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? const SizedBox(height: 20, width: 20, child: CircularProgressIndicator(strokeWidth: 2))
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: const Text('Save Entry'),
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),
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],
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),
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),
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);
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}
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}
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