remove combined gesture widget

lib/gesture_detecting_filament_view.dart

@@ -1,138 +0,0 @@
-import 'package:flutter/material.dart';
-import 'filament_controller.dart';
-import 'filament_widget.dart';
-
-enum GestureType {
-  RotateCamera,
-  PanCamera,
-  PanBackground
-}
-
-class GestureDetectingFilamentView extends StatefulWidget {
-  
-  final FilamentController controller;
-  final bool showControls;
-
-  const GestureDetectingFilamentView(
-      {Key? key, required this.controller, this.showControls = false})
-      : super(key: key);
-
-  @override
-  State<StatefulWidget> createState() => _GestureDetectingFilamentViewState();
-}
-
-class _GestureDetectingFilamentViewState
-    extends State<GestureDetectingFilamentView> {
-  
-  GestureType gestureType = GestureType.PanCamera;
-
-  final _icons = {
-    GestureType.PanBackground:Icons.image,
-    GestureType.PanCamera:Icons.pan_tool,
-    GestureType.RotateCamera:Icons.rotate_90_degrees_ccw
-  };
-
-  // to avoid duplicating code for pan/rotate (panStart, panUpdate, panEnd, rotateStart, rotateUpdate etc) 
-  // we have only a single function for start/update/end.
-  // when the gesture type is changed, these properties are updated to point to the correct function.
-  late Future Function(double x, double y) _functionStart;
-  late Future Function(double x, double y) _functionUpdate;
-  late Future Function() _functionEnd;
-
-  double _lastScale = 0;
-
-  @override
-  void initState() {
-    _setFunction();
-    super.initState();
-  }
-
-  void _setFunction() {
-    switch(gestureType) {
-      case GestureType.RotateCamera:
-        _functionStart = widget.controller.rotateStart;
-        _functionUpdate = widget.controller.rotateUpdate;
-        _functionEnd = widget.controller.rotateEnd;
-        break;
-      case GestureType.PanCamera:
-        _functionStart = widget.controller.panStart;
-        _functionUpdate = widget.controller.panUpdate;
-        _functionEnd = widget.controller.panEnd;
-        break;
-      // TODO 
-      case GestureType.PanBackground:
-        _functionStart = (x,y) async {
-
-        };
-        _functionUpdate = (x,y) async  {
-
-        };
-        _functionEnd = () async {
-          
-        };
-    }
-  }
-
-  @override
-  void didUpdateWidget(Widget oldWidget) {
-    if (widget.showControls !=
-        (oldWidget as GestureDetectingFilamentView).showControls) {
-      setState(() {});
-    }
-
-    super.didUpdateWidget(oldWidget);
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Stack(children: [
-      Positioned.fill(
-          child: GestureDetector(
-              behavior: HitTestBehavior.opaque,
-              onScaleStart: (d) async {
-                if (d.pointerCount == 2) {
-                  await widget.controller.zoomEnd();
-                  await widget.controller.zoomBegin();
-                } else {
-                  await _functionStart(d.focalPoint.dx, d.focalPoint.dy); 
-                }
-              },
-              onScaleEnd: (d) async {
-                if (d.pointerCount == 2) {
-                  _lastScale = 0;
-                  await widget.controller.zoomEnd();
-                } else {
-                  await _functionEnd();
-                }
-              },
-              onScaleUpdate: (d) async {
-                if (d.pointerCount == 2) {
-                  if (_lastScale != 0) {
-                    await widget.controller.zoomUpdate(100 * (_lastScale - d.scale));
-                  }
-                } else {
-                  await _functionUpdate(d.focalPoint.dx, d.focalPoint.dy);  
-                }
-                _lastScale = d.scale;
-              },
-              child: FilamentWidget(controller: widget.controller))),
-      widget.showControls
-          ? Align(
-              alignment: Alignment.bottomRight,
-              child: GestureDetector(
-                onTap: () {
-                  setState(() {
-                    var curIdx = GestureType.values.indexOf(gestureType);
-                    var nextIdx = curIdx == GestureType.values.length - 1 ? 0 : curIdx + 1 ;
-                    gestureType = GestureType.values[nextIdx];
-                    _setFunction();
-                  });
-                },
-                child: Container(
-                    padding: const EdgeInsets.all(50),
-                    child: Icon(_icons[gestureType], color:Colors.green)),
-              ))
-          : Container()
-    ]);
-  }
-}