mirror of https://github.com/flutter/samples.git
Update CI project list (#1583)
Brett Morgan
1 year ago
committed by
GitHub
parent
6bd2d930bb
commit
be309ecc07
@ -1,33 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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void main() {
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runApp(
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const CalculatorApp(),
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);
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}
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class CalculatorApp extends StatelessWidget {
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const CalculatorApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(
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body: Container(
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color: Colors.white,
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child: const Center(
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child: Text(
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'Hello GDSC!',
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style: TextStyle(fontSize: 40),
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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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@ -1,37 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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runApp(
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const CalculatorApp(),
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);
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}
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class CalculatorApp extends StatelessWidget {
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const CalculatorApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(
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body: Container(
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color: Colors.white,
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child: const Center(
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child: Text(
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'Hello GDSC!',
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style: TextStyle(fontSize: 40),
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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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@ -1,42 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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||||
// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
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WidgetsFlutterBinding.ensureInitialized();
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setWindowTitle('Simplistic Calculator');
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}
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runApp(
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const CalculatorApp(),
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);
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}
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class CalculatorApp extends StatelessWidget {
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const CalculatorApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(
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body: Container(
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color: Colors.white,
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child: const Center(
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child: Text(
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'Hello GDSC!',
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style: TextStyle(fontSize: 40),
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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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@ -1,43 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
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WidgetsFlutterBinding.ensureInitialized();
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setWindowTitle('Simplistic Calculator');
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}
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runApp(
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const CalculatorApp(),
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);
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}
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class CalculatorApp extends StatelessWidget {
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const CalculatorApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(
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body: Container(
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color: Colors.white,
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child: const Center(
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child: Text(
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'Hello GDSC!',
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style: TextStyle(fontSize: 40),
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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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@ -1,45 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
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WidgetsFlutterBinding.ensureInitialized();
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setWindowTitle('Simplistic Calculator');
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}
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runApp(
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const ProviderScope(
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child: CalculatorApp(),
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),
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);
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}
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class CalculatorApp extends StatelessWidget {
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const CalculatorApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(
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body: Container(
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color: Colors.white,
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child: const Center(
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child: Text(
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'Hello GDSC!',
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style: TextStyle(fontSize: 40),
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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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@ -1,48 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
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WidgetsFlutterBinding.ensureInitialized();
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setWindowTitle('Simplistic Calculator');
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}
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runApp(
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const ProviderScope(
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child: CalculatorApp(),
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),
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);
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}
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@immutable
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class CalculatorState {}
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class CalculatorApp extends StatelessWidget {
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const CalculatorApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(
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body: Container(
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color: Colors.white,
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child: const Center(
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child: Text(
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'Hello GDSC!',
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style: TextStyle(fontSize: 40),
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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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@ -1,50 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
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WidgetsFlutterBinding.ensureInitialized();
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setWindowTitle('Simplistic Calculator');
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}
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runApp(
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const ProviderScope(
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child: CalculatorApp(),
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),
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);
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}
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@immutable
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class CalculatorState {
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final String buffer;
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}
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class CalculatorApp extends StatelessWidget {
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const CalculatorApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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home: Scaffold(
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body: Container(
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color: Colors.white,
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child: const Center(
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child: Text(
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'Hello GDSC!',
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style: TextStyle(fontSize: 40),
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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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@ -1,51 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
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WidgetsFlutterBinding.ensureInitialized();
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setWindowTitle('Simplistic Calculator');
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}
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runApp(
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const ProviderScope(
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child: CalculatorApp(),
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),
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);
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}
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@immutable
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class CalculatorState {
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final String buffer;
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final String error;
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}
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|
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class CalculatorApp extends StatelessWidget {
|
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const CalculatorApp({super.key});
|
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|
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
|
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debugShowCheckedModeBanner: false,
|
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home: Scaffold(
|
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body: Container(
|
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color: Colors.white,
|
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child: const Center(
|
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child: Text(
|
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'Hello GDSC!',
|
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style: TextStyle(fontSize: 40),
|
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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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@ -1,56 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:window_size/window_size.dart';
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void main() {
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
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WidgetsFlutterBinding.ensureInitialized();
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setWindowTitle('Simplistic Calculator');
|
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}
|
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|
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runApp(
|
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const ProviderScope(
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child: CalculatorApp(),
|
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),
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);
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}
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|
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@immutable
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class CalculatorState {
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const CalculatorState({
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this.buffer,
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this.error,
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});
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|
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final String buffer;
|
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final String error;
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}
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|
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class CalculatorApp extends StatelessWidget {
|
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const CalculatorApp({super.key});
|
||||
|
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@override
|
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Widget build(BuildContext context) {
|
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return MaterialApp(
|
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debugShowCheckedModeBanner: false,
|
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home: Scaffold(
|
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body: Container(
|
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color: Colors.white,
|
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child: const Center(
|
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child: Text(
|
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'Hello GDSC!',
|
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style: TextStyle(fontSize: 40),
|
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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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@ -1,56 +0,0 @@
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// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
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import 'package:flutter/foundation.dart';
|
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import 'package:flutter/material.dart';
|
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import 'package:flutter_riverpod/flutter_riverpod.dart';
|
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import 'package:window_size/window_size.dart';
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|
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void main() {
|
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if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
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WidgetsFlutterBinding.ensureInitialized();
|
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setWindowTitle('Simplistic Calculator');
|
||||
}
|
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|
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runApp(
|
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const ProviderScope(
|
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child: CalculatorApp(),
|
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),
|
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);
|
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}
|
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|
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@immutable
|
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class CalculatorState {
|
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const CalculatorState({
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required this.buffer,
|
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required this.error,
|
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});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
}
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,65 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
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String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,67 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {}
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,69 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine(CalculatorState state) : super(state);
|
||||
}
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,75 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,77 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {}
|
||||
}
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,82 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,86 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends StatelessWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,86 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,86 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,88 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
'Hello GDSC!',
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,88 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: const Center(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,88 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: Center(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
style: TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,88 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: Center(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,89 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: Center(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,91 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
children: [
|
||||
Text(
|
||||
state.buffer,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,93 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
columnSizes: [1.fr],
|
||||
rowSizes: [1.fr],
|
||||
children: [
|
||||
Text(
|
||||
state.buffer,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,106 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
Text(
|
||||
state.buffer,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,109 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: Text(
|
||||
state.buffer,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,110 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,112 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,112 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 40),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,112 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,114 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {}
|
||||
@ -1,120 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
// TODO: implement build
|
||||
throw UnimplementedError();
|
||||
}
|
||||
}
|
||||
@ -1,119 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton();
|
||||
}
|
||||
}
|
||||
@ -1,121 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
child: null,
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,122 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () {},
|
||||
child: null,
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,122 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () {},
|
||||
child: Text(),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,124 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () {},
|
||||
child: Text(),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,124 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () {},
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,129 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () {},
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,131 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () {},
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,132 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () {},
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,133 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,135 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {}
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,139 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,145 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,147 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,153 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,158 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,163 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,168 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,173 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,178 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,183 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,188 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,193 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,198 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,203 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,208 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,217 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,219 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return SizedBox(
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,219 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return SizedBox.expand(
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,222 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(label),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,225 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,227 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,228 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,229 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,233 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: OutlinedButton(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,233 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,234 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,235 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,236 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,237 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,239 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,240 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,241 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,242 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,243 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,244 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
mode: CalculatorEngineMode.result,
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,252 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
mode: CalculatorEngineMode.result,
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
if (state.mode == CalculatorEngineMode.result) {
|
||||
state = state.copyWith(
|
||||
buffer: str,
|
||||
mode: CalculatorEngineMode.input,
|
||||
error: '',
|
||||
);
|
||||
} else {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display
|
||||
seven eight nine
|
||||
four five six
|
||||
one two three
|
||||
zero point equals
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,252 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
mode: CalculatorEngineMode.result,
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
if (state.mode == CalculatorEngineMode.result) {
|
||||
state = state.copyWith(
|
||||
buffer: str,
|
||||
mode: CalculatorEngineMode.input,
|
||||
error: '',
|
||||
);
|
||||
} else {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display display
|
||||
seven eight nine divide
|
||||
four five six multiply
|
||||
one two three minus
|
||||
zero point equals plus
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,257 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
mode: CalculatorEngineMode.result,
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
if (state.mode == CalculatorEngineMode.result) {
|
||||
state = state.copyWith(
|
||||
buffer: str,
|
||||
mode: CalculatorEngineMode.input,
|
||||
error: '',
|
||||
);
|
||||
} else {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'plus',
|
||||
op: (engine) => engine.addToBuffer('+'),
|
||||
label: '+',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display display
|
||||
seven eight nine divide
|
||||
four five six multiply
|
||||
one two three minus
|
||||
zero point equals plus
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,262 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
mode: CalculatorEngineMode.result,
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
if (state.mode == CalculatorEngineMode.result) {
|
||||
state = state.copyWith(
|
||||
buffer: str,
|
||||
mode: CalculatorEngineMode.input,
|
||||
error: '',
|
||||
);
|
||||
} else {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'plus',
|
||||
op: (engine) => engine.addToBuffer('+'),
|
||||
label: '+',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'minus',
|
||||
op: (engine) => engine.addToBuffer('-'),
|
||||
label: '-',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display display
|
||||
seven eight nine divide
|
||||
four five six multiply
|
||||
one two three minus
|
||||
zero point equals plus
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,267 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
mode: CalculatorEngineMode.result,
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
if (state.mode == CalculatorEngineMode.result) {
|
||||
state = state.copyWith(
|
||||
buffer: str,
|
||||
mode: CalculatorEngineMode.input,
|
||||
error: '',
|
||||
);
|
||||
} else {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'plus',
|
||||
op: (engine) => engine.addToBuffer('+'),
|
||||
label: '+',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'minus',
|
||||
op: (engine) => engine.addToBuffer('-'),
|
||||
label: '-',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'multiply',
|
||||
op: (engine) => engine.addToBuffer('*'),
|
||||
label: '*',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display display
|
||||
seven eight nine divide
|
||||
four five six multiply
|
||||
one two three minus
|
||||
zero point equals plus
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -1,272 +0,0 @@
|
||||
// Copyright 2022 The Flutter team. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style license that can be
|
||||
// found in the LICENSE file.
|
||||
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter/material.dart';
|
||||
import 'package:flutter_layout_grid/flutter_layout_grid.dart';
|
||||
import 'package:flutter_riverpod/flutter_riverpod.dart';
|
||||
import 'package:window_size/window_size.dart';
|
||||
|
||||
void main() {
|
||||
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
|
||||
WidgetsFlutterBinding.ensureInitialized();
|
||||
setWindowTitle('Simplistic Calculator');
|
||||
}
|
||||
|
||||
runApp(
|
||||
const ProviderScope(
|
||||
child: CalculatorApp(),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
@immutable
|
||||
class CalculatorState {
|
||||
const CalculatorState({
|
||||
required this.buffer,
|
||||
required this.mode,
|
||||
required this.error,
|
||||
});
|
||||
|
||||
final String buffer;
|
||||
final CalculatorEngineMode mode;
|
||||
final String error;
|
||||
|
||||
CalculatorState copyWith({
|
||||
String? buffer,
|
||||
CalculatorEngineMode? mode,
|
||||
String? error,
|
||||
}) =>
|
||||
CalculatorState(
|
||||
buffer: buffer ?? this.buffer,
|
||||
mode: mode ?? this.mode,
|
||||
error: error ?? this.error,
|
||||
);
|
||||
}
|
||||
|
||||
enum CalculatorEngineMode { input, result }
|
||||
|
||||
class CalculatorEngine extends StateNotifier<CalculatorState> {
|
||||
CalculatorEngine()
|
||||
: super(
|
||||
const CalculatorState(
|
||||
buffer: '0',
|
||||
mode: CalculatorEngineMode.result,
|
||||
error: '',
|
||||
),
|
||||
);
|
||||
|
||||
void addToBuffer(String str) {
|
||||
if (state.mode == CalculatorEngineMode.result) {
|
||||
state = state.copyWith(
|
||||
buffer: str,
|
||||
mode: CalculatorEngineMode.input,
|
||||
error: '',
|
||||
);
|
||||
} else {
|
||||
state = state.copyWith(
|
||||
buffer: state.buffer + str,
|
||||
error: '',
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
final calculatorStateProvider =
|
||||
StateNotifierProvider<CalculatorEngine, CalculatorState>(
|
||||
(_) => CalculatorEngine());
|
||||
|
||||
class ButtonDefinition {
|
||||
const ButtonDefinition({
|
||||
required this.areaName,
|
||||
required this.label,
|
||||
required this.op,
|
||||
this.type = CalcButtonType.outlined,
|
||||
});
|
||||
|
||||
final String areaName;
|
||||
final String label;
|
||||
final CalculatorEngineCallback op;
|
||||
final CalcButtonType type;
|
||||
}
|
||||
|
||||
final buttonDefinitions = <ButtonDefinition>[
|
||||
ButtonDefinition(
|
||||
areaName: 'seven',
|
||||
op: (engine) => engine.addToBuffer('7'),
|
||||
label: '7',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'eight',
|
||||
op: (engine) => engine.addToBuffer('8'),
|
||||
label: '8',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'nine',
|
||||
op: (engine) => engine.addToBuffer('9'),
|
||||
label: '9',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'four',
|
||||
op: (engine) => engine.addToBuffer('4'),
|
||||
label: '4',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'five',
|
||||
op: (engine) => engine.addToBuffer('5'),
|
||||
label: '5',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'six',
|
||||
op: (engine) => engine.addToBuffer('6'),
|
||||
label: '6',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'one',
|
||||
op: (engine) => engine.addToBuffer('1'),
|
||||
label: '1',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'two',
|
||||
op: (engine) => engine.addToBuffer('2'),
|
||||
label: '2',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'three',
|
||||
op: (engine) => engine.addToBuffer('3'),
|
||||
label: '3',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'zero',
|
||||
op: (engine) => engine.addToBuffer('0'),
|
||||
label: '0',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'point',
|
||||
op: (engine) => engine.addToBuffer('.'),
|
||||
label: '.',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'equals',
|
||||
op: (engine) {},
|
||||
label: '=',
|
||||
type: CalcButtonType.elevated,
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'plus',
|
||||
op: (engine) => engine.addToBuffer('+'),
|
||||
label: '+',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'minus',
|
||||
op: (engine) => engine.addToBuffer('-'),
|
||||
label: '-',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'multiply',
|
||||
op: (engine) => engine.addToBuffer('*'),
|
||||
label: '*',
|
||||
),
|
||||
ButtonDefinition(
|
||||
areaName: 'divide',
|
||||
op: (engine) => engine.addToBuffer('/'),
|
||||
label: '/',
|
||||
),
|
||||
];
|
||||
|
||||
class CalculatorApp extends ConsumerWidget {
|
||||
const CalculatorApp({super.key});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final state = ref.watch(calculatorStateProvider);
|
||||
|
||||
return MaterialApp(
|
||||
debugShowCheckedModeBanner: false,
|
||||
home: Scaffold(
|
||||
body: Container(
|
||||
color: Colors.white,
|
||||
child: LayoutGrid(
|
||||
areas: '''
|
||||
display display display display
|
||||
seven eight nine divide
|
||||
four five six multiply
|
||||
one two three minus
|
||||
zero point equals plus
|
||||
''',
|
||||
columnSizes: [1.fr, 1.fr, 1.fr, 1.fr],
|
||||
rowSizes: [
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
1.fr,
|
||||
],
|
||||
children: [
|
||||
NamedAreaGridPlacement(
|
||||
areaName: 'display',
|
||||
child: SizedBox.expand(
|
||||
child: Text(
|
||||
state.buffer,
|
||||
textAlign: TextAlign.end,
|
||||
style: const TextStyle(fontSize: 80),
|
||||
),
|
||||
),
|
||||
),
|
||||
...buttonDefinitions.map(
|
||||
(definition) => NamedAreaGridPlacement(
|
||||
areaName: definition.areaName,
|
||||
child: CalcButton(
|
||||
label: definition.label,
|
||||
op: definition.op,
|
||||
type: definition.type,
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
typedef CalculatorEngineCallback = void Function(CalculatorEngine engine);
|
||||
|
||||
enum CalcButtonType { outlined, elevated }
|
||||
|
||||
class CalcButton extends ConsumerWidget {
|
||||
const CalcButton({
|
||||
Key? key,
|
||||
required this.op,
|
||||
required this.label,
|
||||
required this.type,
|
||||
}) : super(key: key);
|
||||
|
||||
final CalculatorEngineCallback op;
|
||||
final String label;
|
||||
final CalcButtonType type;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context, WidgetRef ref) {
|
||||
final buttonConstructor = type == CalcButtonType.elevated
|
||||
? ElevatedButton.new
|
||||
: OutlinedButton.new;
|
||||
|
||||
return SizedBox.expand(
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(8),
|
||||
child: buttonConstructor(
|
||||
onPressed: () => op(ref.read(calculatorStateProvider.notifier)),
|
||||
child: Text(
|
||||
label,
|
||||
style: const TextStyle(fontSize: 40, color: Colors.black54),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
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