import 'dart:math';

import 'package:flutter/material.dart';

class GestureWidget extends StatefulWidget {
  @override
  _GestureWidgetState createState() => _GestureWidgetState();
}

class _GestureWidgetState extends State<GestureWidget> {
  double _scale = 1.0;
  double _previousScale = 1.0;
  Offset _offset = Offset.zero;
  Offset _previousOffset = Offset.zero;
  double _rotation = 0.0;
  double _previousRotation = 0.0;

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onScaleStart: (details) {
        _previousScale = _scale;
        _previousOffset = details.focalPoint;
        _previousRotation = _rotation;
      },
      onScaleUpdate: (details) {
        setState(() {
          _scale = _previousScale * details.scale;
          _offset = _previousOffset + (details.focalPoint - _previousOffset);
          _rotation = _previousRotation + details.rotation;
          // Burada eventı işleyebilirsiniz
          print('Scale: $_scale, Offset: $_offset, Rotation: $_rotation');
        });
      },
      onScaleEnd: (details) {
        _previousScale = _scale;
        _previousOffset = _offset;
        _previousRotation = _rotation;
      },
      child: Transform(
        transform: Matrix4.identity()
          ..translate(_offset.dx, _offset.dy)
          ..scale(_scale)
          ..rotateZ(_rotation),
        alignment: FractionalOffset.center,
        child: Container(
          width: 200,
          height: 200,
          color: Colors.blue,
          child: Center(
            child: Text('Transform Me!'),
          ),
        ),
      ),
    );
  }
}