rfac: full refactor; removed flutter hooks

lib/main.dart

@@ -1,24 +1,9 @@
 import 'package:flutter/material.dart';
-import 'package:flutter_drawing_board/view/drawing_page.dart';
+import 'package:flutter_drawing_board/src/src.dart';
 
 void main() {
-  runApp(const MyApp());
+  runApp(const LetsDrawApp());
 }
 
 const Color kCanvasColor = Color(0xfff2f3f7);
 const String kGithubRepo = 'https://github.com/JideGuru/flutter_drawing_board';
-
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
-
-  // This widget is the root of your application.
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Let\'s Draw',
-      theme: ThemeData(primarySwatch: Colors.blue, useMaterial3: false),
-      debugShowCheckedModeBanner: false,
-      home: const DrawingPage(),
-    );
-  }
-}

lib/src/constants/constants.dart

@@ -0,0 +1 @@
+export 'values.dart';

lib/src/constants/values.dart

@@ -0,0 +1,2 @@
+double markerDefaultOpacity = 0.7;
+double markerDefaultSize = 25;

lib/src/domain/domain.dart

@@ -0,0 +1 @@
+export 'models/models.dart';

lib/src/domain/models/drawing_canvas_options.dart

@@ -0,0 +1,46 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_drawing_board/src/src.dart';
+
+class DrawingCanvasOptions {
+  final Color strokeColor;
+  final double size;
+  final double opacity;
+  final DrawingTool currentTool;
+  final Color backgroundColor;
+  final bool showGrid;
+  final int polygonSides;
+  final bool fillShape;
+
+  const DrawingCanvasOptions({
+    this.strokeColor = blackAccent,
+    this.size = 10,
+    this.opacity = 1,
+    this.currentTool = DrawingTool.pencil,
+    this.backgroundColor = lightAccent,
+    this.showGrid = false,
+    this.polygonSides = 3,
+    this.fillShape = false,
+  });
+
+  DrawingCanvasOptions copyWith({
+    Color? strokeColor,
+    double? size,
+    double? opacity,
+    DrawingTool? currentTool,
+    Color? backgroundColor,
+    bool? showGrid,
+    int? polygonSides,
+    bool? fillShape,
+  }) {
+    return DrawingCanvasOptions(
+      strokeColor: strokeColor ?? this.strokeColor,
+      size: size ?? this.size,
+      opacity: opacity ?? this.opacity,
+      currentTool: currentTool ?? this.currentTool,
+      backgroundColor: backgroundColor ?? this.backgroundColor,
+      showGrid: showGrid ?? this.showGrid,
+      polygonSides: polygonSides ?? this.polygonSides,
+      fillShape: fillShape ?? this.fillShape,
+    );
+  }
+}

lib/src/domain/models/drawing_tool.dart

@@ -0,0 +1,19 @@
+enum DrawingTool {
+  pencil,
+  marker,
+  fill,
+  line,
+  eraser,
+  polygon,
+  square,
+  circle;
+
+  bool get isEraser => this == DrawingTool.eraser;
+  bool get isLine => this == DrawingTool.line;
+  bool get isFill => this == DrawingTool.fill;
+  bool get isMarker => this == DrawingTool.marker;
+  bool get isPencil => this == DrawingTool.pencil;
+  bool get isPolygon => this == DrawingTool.polygon;
+  bool get isSquare => this == DrawingTool.square;
+  bool get isCircle => this == DrawingTool.circle;
+}

lib/src/domain/models/models.dart

@@ -0,0 +1,5 @@
+export 'drawing_canvas_options.dart';
+export 'drawing_tool.dart';
+export 'stroke.dart';
+export 'tool_type.dart';
+export 'undo_redo_stack.dart';