Merge pull request #57 from ilopX/add-manipulator-state

Add "State" Pattern as Shape Manipulator  example.

Author: ilopX

CHANGELOG.md

@@ -1,3 +1,6 @@
+## 0.24.0
+- Add state pattern: State Manipulator.
+
 ## 0.23.14
 - Replace web renderer html to canvakit (deploy_flutter_demo.dart).
 

README.md

@@ -17,7 +17,7 @@ It contains **Dart** examples for all classic **GoF** design patterns.
     - [ ] **Mediator**
     - [x] **Memento** - [[Conceptual](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/memento/conceptual)] [[Memento Editor](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/memento/memento_editor)] 
     - [x] **Observer** - [[Open-Close Editor Events](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/open_close_editor_events)] [[AppObserver](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/app_observer)] [[Subscriber Flutter Widget](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/observer/subscriber_flutter_widget)]
-    - [ ] **State**
+    - [x] **State** - [[State Manipulator](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/state/manipulator_state)]
     - [ ] **Template Method**
     - [X] **Visitor**  [[Shape XML Exporter](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/visitor/shapes_exporter)]
     - [X] **Strategy** [[Reservation Cargo Spaces](https://github.com/RefactoringGuru/design-patterns-dart/tree/main/patterns/strategy/reservation_cargo_spaces)]
@@ -32,8 +32,8 @@ It contains **Dart** examples for all classic **GoF** design patterns.
 
 ## Requirements
 
-The examples were written in **Dart 2.15**.
-Some complex examples require **Flutter 2.12**.
+The examples were written in **Dart 2.17**.
+Some complex examples require **Flutter 3.0.0**.
 
 ## Contributor's Guide
 

analysis_options.yaml

@@ -15,10 +15,9 @@ include: package:lints/recommended.yaml
 
 # Uncomment the following section to specify additional rules.
 
-# linter:
-#   rules:
-#     - camel_case_types
-
+linter:
+  rules:
+    library_private_types_in_public_api: false
 # analyzer:
 #   exclude:
 #     - path/to/excluded/files/**

bin/deploy_flutter_demos.dart

@@ -20,9 +20,9 @@ void main() async {
   clear();
 }
 
-late final tmpDir = Directory.systemTemp.createTempSync();
-late final projectDir = thisPath(r'..\');
-late final webBuildDir = Directory(projectDir.uri.toFilePath() + r'build\web');
+ final tmpDir = Directory.systemTemp.createTempSync();
+ final projectDir = thisPath(r'..\');
+ final webBuildDir = Directory(projectDir.uri.toFilePath() + r'build\web');
 late final String originUrl;
 
 Future<void> init() async {

bin/main.dart

@@ -3,6 +3,7 @@ import '../patterns/abstract_factory/tool_panel_factory/main.dart';
 import '../patterns/observer/subscriber_flutter_widget/main.dart';
 import '../patterns/adapter/flutter_adapter/main.dart';
 import '../patterns/memento/memento_editor/main.dart';
+import '../patterns/state/manipulator_state/main.dart';
 
 void main() {
   runApp(MyApp());
@@ -13,13 +14,20 @@ class MyApp extends StatelessWidget {
   Widget build(BuildContext context) {
     return MaterialApp(
       title: 'Refactoring Guru: Flutter launcher',
-      theme: ThemeData(primarySwatch: Colors.pink),
-      initialRoute: '/abstract_factory/tool_panel_factory',
+      theme: ThemeData(
+        primarySwatch: Colors.pink,
+        iconTheme: IconThemeData(
+          size: 32,
+          color: Colors.white,
+        ),
+      ),
+      initialRoute: '/state/manipulator_state',
       routes: {
         '/observer/subscriber_flutter_widget': (_) => SubscriberFlutterApp(),
         '/adapter/flutter_adapter': (_) => FlutterAdapterApp(),
         '/memento/flutter_memento_editor': (_) => FlutterMementoEditorApp(),
         '/abstract_factory/tool_panel_factory': (_) => ToolPanelFactoryApp(),
+        '/state/manipulator_state': (_) => ManipulatorStateApp(),
       },
     );
   }

patterns/abstract_factory/tool_panel_factory/widgets/independent/panel.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 
 class Panel extends StatelessWidget {
   static const thicknessWidth = 64.0;
-  static const thicknessHeight = 48.0;
+  final double thicknessHeight;
 
   final Axis direction;
   final Widget child;
@@ -11,6 +11,7 @@ class Panel extends StatelessWidget {
     Key? key,
     required this.direction,
     required this.child,
+    this.thicknessHeight = 48.0,
   }) : super(key: key);
 
   @override

patterns/abstract_factory/tool_panel_factory/widgets/independent/tool_button.dart

@@ -10,7 +10,7 @@ class ToolButton extends StatelessWidget {
   const ToolButton({
     Key? key,
     required this.onTap,
-    required this.active,
+    this.active = false,
     required this.icon,
   }) : super(key: key);
 

patterns/abstract_factory/tool_panel_factory/widgets/property_widgets/primitive/filed_label.dart

@@ -15,7 +15,7 @@ class FieldLabel extends StatelessWidget {
     return Row(
       children: [
         SizedBox(width: 10),
-        Text(text + ':'),
+        Text('$text:'),
         SizedBox(width: 10),
         child,
         SizedBox(width: 20),

patterns/builder/cars/main.dart

@@ -34,5 +34,5 @@ void main() {
   // RU: Директор может знать больше одного рецепта строительства
   director.constructSportsCar(manualBuilder);
   final carManual = manualBuilder.getResult();
-  print("Car manual built:\n" + carManual.print());
+  print("Car manual built:\n${carManual.print()}");
 }

patterns/command/text_editor/main.dart

@@ -32,5 +32,5 @@ void log({
 }) {
   final addOrUndo = isUndo ? 'Undo_' : '[➕] ';
   final description = '$addOrUndo$command';
-  print(description.padRight(72, '_') + '"$editorText"');
+  print('${description.padRight(72, '_')}"$editorText"');
 }