import 'package:flutter/material.dart';

/// Flutter code sample for [InteractiveViewer].

void main() => runApp(const InteractiveViewerExampleApp());

class InteractiveViewerExampleApp extends StatelessWidget {
  const InteractiveViewerExampleApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: const Text('InteractiveViewer Issue')),
        body: const InteractiveViewerExample(),
      ),
    );
  }
}

class InteractiveViewerExample extends StatefulWidget {
  const InteractiveViewerExample({super.key});

  @override
  State<InteractiveViewerExample> createState() => _InteractiveViewerExampleState();
}

class _InteractiveViewerExampleState extends State<InteractiveViewerExample> {
  final controller = TransformationController();

  void resetZoom() {
    setState(() {
      controller.value = Matrix4.identity();
    });
  }

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () {
        print('Tap Tap');
      },
      child: Center(
        child: Column(
          children: [
            Center(
              child: TextButton(
                  onPressed: () {
                    resetZoom();
                  },
                  child: Text('Reset Zoom')),
            ),
            Expanded(
              child: InteractiveViewer(
                boundaryMargin: const EdgeInsets.all(20.0),
                transformationController: controller,
                minScale: 0.1,
                maxScale: 1.6,
                child: Container(
                  height: 1000,
                  width: 1000,
                  decoration: const BoxDecoration(
                    gradient: LinearGradient(
                      begin: Alignment.topCenter,
                      end: Alignment.bottomCenter,
                      colors: <Color>[Colors.red, Colors.orange, Colors.blue],
                      stops: <double>[0.0, 0.5, 1.0],
                    ),
                  ),
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}