Generated code from pixels2flutter.dev

main.dart

import 'package:flutter/material.dart';

void main() {
  runApp(BezierCurveTesterApp());
}

class BezierCurveTesterApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Bezier Curve Tester',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: BezierCurveTesterHomePage(),
    );
  }
}

class BezierCurveTesterHomePage extends StatefulWidget {
  @override
  _BezierCurveTesterHomePageState createState() => _BezierCurveTesterHomePageState();
}

class _BezierCurveTesterHomePageState extends State<BezierCurveTesterHomePage> with SingleTickerProviderStateMixin {
  late AnimationController _controller;
  late CurvedAnimation _curvedAnimation;
  late Animation<Offset> _animation;
  late Curve _curve;

  @override
  void initState() {
    super.initState();
    _curve = Cubic(0.18, 0.55, 0.81, 0.46);
    _controller = AnimationController(
      duration: const Duration(seconds: 10),
      vsync: this,
    );
    _curvedAnimation = CurvedAnimation(
      parent: _controller,
      curve: _curve,
    );
    _animation = Tween<Offset>(
      begin: Offset.zero,
      end: Offset(1, 0),
    ).animate(_curvedAnimation);
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  void _runAnimation() {
    if (_controller.isAnimating) {
      _controller.stop();
    } else {
      _controller.repeat();
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Bezier Curve Tester'),
      ),
      body: Column(
        children: [
          Expanded(
            child: Center(
              child: CustomPaint(
                painter: CurvePainter(curve: _curve),
                child: Container(),
              ),
            ),
          ),
          Padding(
            padding: const EdgeInsets.all(16.0),
            child: ElevatedButton(
              onPressed: _runAnimation,
              child: Text('GO!'),
            ),
          ),
          SizedBox(
            height: 100,
            child: Row(
              children: [
                SlideTransition(
                  position: _animation,
                  child: Container(
                    width: 50,
                    height: 50,
                    color: Colors.pink,
                  ),
                ),
                SlideTransition(
                  position: _animation,
                  child: Container(
                    width: 50,
                    height: 50,
                    color: Colors.teal,
                  ),
                ),
              ],
            ),
          ),
          // Placeholder for the library section
          Padding(
            padding: const EdgeInsets.all(16.0),
            child: Text('Library Placeholder'),
          ),
        ],
      ),
    );
  }
}

class CurvePainter extends CustomPainter {
  final Curve curve;

  CurvePainter({required this.curve});

  @override
  void paint(Canvas canvas, Size size) {
    final Paint paint = Paint()
      ..color = Colors.black
      ..strokeWidth = 2
      ..style = PaintingStyle.stroke;

    final Path path = Path();
    path.moveTo(0, size.height);
    for (double i = 0; i <= 1.0; i += 0.01) {
      final double x = i * size.width;
      final double y = (1 - curve.transform(i)) * size.height;
      path.lineTo(x, y);
    }

    canvas.drawPath(path, paint);
  }

  @override
  bool shouldRepaint(CustomPainter oldDelegate) => true;
}