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Code Issues Releases Wiki Activity

Update CI project list (#1583)

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This commit is contained in:
Brett Morgan
2023-01-22 15:20:42 +11:00
committed by GitHub
parent 6bd2d930bb
commit be309ecc07
112 changed files with 166 additions and 15758 deletions
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33
simplistic_calculator/typer/main_01.dart
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@@ -1,33 +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 'package:flutter/material.dart';
void main() {
runApp(
const CalculatorApp(),
);
}
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),
),
),
),
),
);
}
}

37
simplistic_calculator/typer/main_02.dart
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@@ -1,37 +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:window_size/window_size.dart';
void main() {
runApp(
const CalculatorApp(),
);
}
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),
),
),
),
),
);
}
}

42
simplistic_calculator/typer/main_03.dart
View File

@@ -1,42 +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:window_size/window_size.dart';
void main() {
if (!kIsWeb && (Platform.isWindows || Platform.isLinux || Platform.isMacOS)) {
WidgetsFlutterBinding.ensureInitialized();
setWindowTitle('Simplistic Calculator');
}
runApp(
const CalculatorApp(),
);
}
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),
),
),
),
),
);
}
}

43
simplistic_calculator/typer/main_04.dart
View File

@@ -1,43 +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 CalculatorApp(),
);
}
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),
),
),
),
),
);
}
}

45
simplistic_calculator/typer/main_05.dart
View File

@@ -1,45 +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(),
),
);
}
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),
),
),
),
),
);
}
}

48
simplistic_calculator/typer/main_06.dart
View File

@@ -1,48 +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 {}
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),
),
),
),
),
);
}
}

50
simplistic_calculator/typer/main_07.dart
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@@ -1,50 +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 {
final String buffer;
}
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),
),
),
),
),
);
}
}

51
simplistic_calculator/typer/main_08.dart
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@@ -1,51 +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 {
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),
),
),
),
),
);
}
}

56
simplistic_calculator/typer/main_09.dart
View File

@@ -1,56 +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({
this.buffer,
this.error,
});
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),
),
),
),
),
);
}
}

56
simplistic_calculator/typer/main_10.dart
View File

@@ -1,56 +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;
}
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),
),
),
),
),
);
}
}

65
simplistic_calculator/typer/main_11.dart
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@@ -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({
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),
),
),
),
),
);
}
}

67
simplistic_calculator/typer/main_12.dart
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@@ -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),
),
),
),
),
);
}
}

69
simplistic_calculator/typer/main_13.dart
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@@ -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),
),
),
),
),
);
}
}

75
simplistic_calculator/typer/main_14.dart
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@@ -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),
),
),
),
),
);
}
}

77
simplistic_calculator/typer/main_15.dart
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@@ -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),
),
),
),
),
);
}
}

82
simplistic_calculator/typer/main_16.dart
View File

@@ -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),
),
),
),
),
);
}
}

86
simplistic_calculator/typer/main_17.dart
View File

@@ -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),
),
),
),
),
);
}
}

86
simplistic_calculator/typer/main_18.dart
View File

@@ -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),
),
),
),
),
);
}
}

86
simplistic_calculator/typer/main_19.dart
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@@ -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),
),
),
),
),
);
}
}

88
simplistic_calculator/typer/main_20.dart
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@@ -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),
),
),
),
),
);
}
}

88
simplistic_calculator/typer/main_21.dart
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@@ -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),
),
),
),
),
);
}
}

88
simplistic_calculator/typer/main_22.dart
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@@ -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),
),
),
),
),
);
}
}

88
simplistic_calculator/typer/main_23.dart
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@@ -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),
),
),
),
),
);
}
}

89
simplistic_calculator/typer/main_24.dart
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@@ -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),
),
),
),
),
);
}
}

91
simplistic_calculator/typer/main_25.dart
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@@ -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),
),
],
),
),
),
);
}
}

93
simplistic_calculator/typer/main_26.dart
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@@ -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),
),
],
),
),
),
);
}
}

106
simplistic_calculator/typer/main_27.dart
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@@ -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),
),
],
),
),
),
);
}
}

109
simplistic_calculator/typer/main_28.dart
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@@ -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),
),
),
],
),
),
),
);
}
}

110
simplistic_calculator/typer/main_29.dart
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@@ -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),
),
),
],
),
),
),
);
}
}

112
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@@ -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),
),
),
),
],
),
),
),
);
}
}

112
simplistic_calculator/typer/main_31.dart
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@@ -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),
),
),
),
],
),
),
),
);
}
}

112
simplistic_calculator/typer/main_32.dart
View File

@@ -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),
),
),
),
],
),
),
),
);
}
}

114
simplistic_calculator/typer/main_33.dart
View File

@@ -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 {}

120
simplistic_calculator/typer/main_34.dart
View File

@@ -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();
}
}

119
simplistic_calculator/typer/main_35.dart
View File

@@ -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();
}
}

121
simplistic_calculator/typer/main_36.dart
View File

@@ -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,
);
}
}

122
simplistic_calculator/typer/main_37.dart
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@@ -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,
);
}
}

122
simplistic_calculator/typer/main_38.dart
View File

@@ -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(),
);
}
}

124
simplistic_calculator/typer/main_39.dart
View File

@@ -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(),
);
}
}

124
simplistic_calculator/typer/main_40.dart
View File

@@ -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),
);
}
}

129
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@@ -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),
);
}
}

131
simplistic_calculator/typer/main_42.dart
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@@ -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),
);
}
}

132
simplistic_calculator/typer/main_43.dart
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@@ -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),
);
}
}

133
simplistic_calculator/typer/main_44.dart
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@@ -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),
);
}
}

135
simplistic_calculator/typer/main_45.dart
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@@ -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),
);
}
}

139
simplistic_calculator/typer/main_46.dart
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@@ -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),
);
}
}

145
simplistic_calculator/typer/main_47.dart
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@@ -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),
);
}
}

147
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@@ -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),
);
}
}

153
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@@ -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),
);
}
}

158
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@@ -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),
);
}
}

163
simplistic_calculator/typer/main_51.dart
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@@ -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),
);
}
}

168
simplistic_calculator/typer/main_52.dart
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@@ -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),
);
}
}

173
simplistic_calculator/typer/main_53.dart
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@@ -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),
);
}
}

178
simplistic_calculator/typer/main_54.dart
View File

@@ -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),
);
}
}

183
simplistic_calculator/typer/main_55.dart
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@@ -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),
);
}
}

188
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@@ -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),
);
}
}

193
simplistic_calculator/typer/main_57.dart
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@@ -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),
);
}
}

198
simplistic_calculator/typer/main_58.dart
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@@ -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),
);
}
}

203
simplistic_calculator/typer/main_59.dart
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@@ -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),
);
}
}

208
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@@ -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),
);
}
}

217
simplistic_calculator/typer/main_61.dart
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@@ -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),
);
}
}

219
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@@ -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),
),
);
}
}

219
simplistic_calculator/typer/main_63.dart
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@@ -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),
),
);
}
}

222
simplistic_calculator/typer/main_64.dart
View File

@@ -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),
),
),
);
}
}

225
simplistic_calculator/typer/main_65.dart
View File

@@ -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),
),
),
),
);
}
}

227
simplistic_calculator/typer/main_66.dart
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@@ -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),
),
),
),
);
}
}

228
simplistic_calculator/typer/main_67.dart
View File

@@ -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),
),
),
),
);
}
}

229
simplistic_calculator/typer/main_68.dart
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@@ -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),
),
),
),
);
}
}

233
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View File

@@ -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),
),
),
),
);
}
}

233
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View File

@@ -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),
),
),
),
);
}
}

234
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View File

@@ -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),
),
),
),
);
}
}

235
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@@ -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),
),
),
),
);
}
}

236
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@@ -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),
),
),
),
);
}
}

237
simplistic_calculator/typer/main_74.dart
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@@ -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),
),
),
),
);
}
}

239
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@@ -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),
),
),
),
);
}
}

240
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View File

@@ -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),
),
),
),
);
}
}

241
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View File

@@ -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),
),
),
),
);
}
}

242
simplistic_calculator/typer/main_78.dart
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@@ -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),
),
),
),
);
}
}

243
simplistic_calculator/typer/main_79.dart
View File

@@ -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),
),
),
),
);
}
}

244
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View File

@@ -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),
),
),
),
);
}
}

252
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View File

@@ -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),
),
),
),
);
}
}

252
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@@ -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),
),
),
),
);
}
}

257
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@@ -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),
),
),
),
);
}
}

262
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@@ -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),
),
),
),
);
}
}

267
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@@ -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),
),
),
),
);
}
}

272
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@@ -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),
),
),
),
);
}
}

273
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View File

@@ -1,273 +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:math_expressions/math_expressions.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),
),
),
),
);
}
}

275
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View File

@@ -1,275 +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:math_expressions/math_expressions.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: '',
);
}
}
void evaluate() {}
}
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),
),
),
),
);
}
}

283
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View File

@@ -1,283 +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:math_expressions/math_expressions.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: '',
);
}
}
void evaluate() {
try {} catch (err) {
state = state.copyWith(
error: err.toString(),
buffer: '',
mode: CalculatorEngineMode.result,
);
}
}
}
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),
),
),
),
);
}
}

288
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View File

@@ -1,288 +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:math_expressions/math_expressions.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: '',
);
}
}
void evaluate() {
try {
final parser = Parser();
final cm = ContextModel();
final exp = parser.parse(state.buffer);
final result = exp.evaluate(EvaluationType.REAL, cm) as double;
} catch (err) {
state = state.copyWith(
error: err.toString(),
buffer: '',
mode: CalculatorEngineMode.result,
);
}
}
}
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),
),
),
),
);
}
}

300
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View File

@@ -1,300 +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:math_expressions/math_expressions.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: '',
);
}
}
void evaluate() {
try {
final parser = Parser();
final cm = ContextModel();
final exp = parser.parse(state.buffer);
final result = exp.evaluate(EvaluationType.REAL, cm) as double;
if (result.isInfinite) {
state = state.copyWith(
error: 'Result is Infinite',
buffer: '',
mode: CalculatorEngineMode.result,
);
} else if (result.isNaN) {
state = state.copyWith(
error: 'Result is Not a Number',
buffer: '',
mode: CalculatorEngineMode.result,
);
} catch (err) {
state = state.copyWith(
error: err.toString(),
buffer: '',
mode: CalculatorEngineMode.result,
);
}
}
}
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),
),
),
),
);
}
}

310
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View File

@@ -1,310 +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:math_expressions/math_expressions.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: '',
);
}
}
void evaluate() {
try {
final parser = Parser();
final cm = ContextModel();
final exp = parser.parse(state.buffer);
final result = exp.evaluate(EvaluationType.REAL, cm) as double;
if (result.isInfinite) {
state = state.copyWith(
error: 'Result is Infinite',
buffer: '',
mode: CalculatorEngineMode.result,
);
} else if (result.isNaN) {
state = state.copyWith(
error: 'Result is Not a Number',
buffer: '',
mode: CalculatorEngineMode.result,
);
} else {
final resultStr = result.ceil() == result
? result.toInt().toString()
: result.toString();
state = state.copyWith(
buffer: resultStr,
mode: CalculatorEngineMode.result,
);
}
} catch (err) {
state = state.copyWith(
error: err.toString(),
buffer: '',
mode: CalculatorEngineMode.result,
);
}
}
}
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),
),
),
),
);
}
}

310
simplistic_calculator/typer/main_93.dart
View File

@@ -1,310 +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:math_expressions/math_expressions.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: '',
);
}
}
void evaluate() {
try {
final parser = Parser();
final cm = ContextModel();
final exp = parser.parse(state.buffer);
final result = exp.evaluate(EvaluationType.REAL, cm) as double;
if (result.isInfinite) {
state = state.copyWith(
error: 'Result is Infinite',
buffer: '',
mode: CalculatorEngineMode.result,
);
} else if (result.isNaN) {
state = state.copyWith(
error: 'Result is Not a Number',
buffer: '',
mode: CalculatorEngineMode.result,
);
} else {
final resultStr = result.ceil() == result
? result.toInt().toString()
: result.toString();
state = state.copyWith(
buffer: resultStr,
mode: CalculatorEngineMode.result,
);
}
} catch (err) {
state = state.copyWith(
error: err.toString(),
buffer: '',
mode: CalculatorEngineMode.result,
);
}
}
}
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) => engine.evaluate(),
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),
),
),
),
);
}
}

320
simplistic_calculator/typer/main_94.dart
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@@ -1,320 +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:math_expressions/math_expressions.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: '',
);
}
}
void evaluate() {
try {
final parser = Parser();
final cm = ContextModel();
final exp = parser.parse(state.buffer);
final result = exp.evaluate(EvaluationType.REAL, cm) as double;
if (result.isInfinite) {
state = state.copyWith(
error: 'Result is Infinite',
buffer: '',
mode: CalculatorEngineMode.result,
);
} else if (result.isNaN) {
state = state.copyWith(
error: 'Result is Not a Number',
buffer: '',
mode: CalculatorEngineMode.result,
);
} else {
final resultStr = result.ceil() == result
? result.toInt().toString()
: result.toString();
state = state.copyWith(
buffer: resultStr,
mode: CalculatorEngineMode.result,
);
}
} catch (err) {
state = state.copyWith(
error: err.toString(),
buffer: '',
mode: CalculatorEngineMode.result,
);
}
}
}
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) => engine.evaluate(),
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: state.error.isEmpty
? Text(
state.buffer,
textAlign: TextAlign.end,
style: const TextStyle(fontSize: 80),
)
: Text(
state.error,
textAlign: TextAlign.start,
style: const TextStyle(
fontSize: 40,
color: Colors.red,
),
maxLines: 2,
),
),
),
...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({
super.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),
),
),
),
);
}
}

378
simplistic_calculator/typer/steps.json
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@@ -1,378 +0,0 @@
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