From 1fd75fb2b1ff9cd12a7542f37efcf8362860a45a Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Wed, 24 Nov 2021 11:47:56 +0800
Subject: [PATCH] add controls to gesture detector

---
 lib/gesture_detecting_filament_view.dart | 106 +++++++++++++++++------
 1 file changed, 80 insertions(+), 26 deletions(-)

diff --git a/lib/gesture_detecting_filament_view.dart b/lib/gesture_detecting_filament_view.dart
index eaf1ce7f..5004ce64 100644
--- a/lib/gesture_detecting_filament_view.dart
+++ b/lib/gesture_detecting_filament_view.dart
@@ -1,3 +1,4 @@
+import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 
 import 'filament_controller.dart';
@@ -5,10 +6,11 @@ import 'view/filament_widget.dart';
 
 class GestureDetectingFilamentView extends StatefulWidget {
   final FilamentController controller;
-  final bool rotate;
+
+  final bool showControls;
 
   const GestureDetectingFilamentView(
-      {Key? key, required this.controller, this.rotate = false})
+      {Key? key, required this.controller, this.showControls = false})
       : super(key: key);
 
   @override
@@ -17,32 +19,84 @@ class GestureDetectingFilamentView extends StatefulWidget {
 
 class _GestureDetectingFilamentViewState
     extends State<GestureDetectingFilamentView> {
-  int _primitiveIndex = 0;
-  double _weight = 0.0;
+  bool _rotate = false;
+
+  @override
+  void didUpdateWidget(Widget oldWidget) {
+    if (widget.showControls !=
+        (oldWidget as GestureDetectingFilamentView).showControls) {
+      setState(() {});
+    }
+    super.didUpdateWidget(oldWidget);
+  }
 
   @override
   Widget build(BuildContext context) {
-    return GestureDetector(
-        behavior: HitTestBehavior.opaque,
-        onPanDown: (details) {
-          widget.rotate
-              ? widget.controller.rotateStart(
-                  details.localPosition.dx, details.localPosition.dy)
-              : widget.controller
-                  .panStart(details.localPosition.dx, details.localPosition.dy);
-        },
-        onPanUpdate: (details) {
-          widget.rotate
-              ? widget.controller.rotateUpdate(
-                  details.localPosition.dx, details.localPosition.dy)
-              : widget.controller.panUpdate(
-                  details.localPosition.dx, details.localPosition.dy);
-        },
-        onPanEnd: (d) {
-          widget.rotate
-              ? widget.controller.rotateEnd()
-              : widget.controller.panEnd();
-        },
-        child: FilamentWidget(controller: widget.controller));
+    return Stack(children: [
+      Positioned.fill(
+          child: GestureDetector(
+              behavior: HitTestBehavior.opaque,
+              onPanDown: (details) async {
+                await widget.controller.panEnd();
+                await widget.controller.rotateEnd();
+                _rotate
+                    ? widget.controller.rotateStart(
+                        details.globalPosition.dx, details.globalPosition.dy)
+                    : widget.controller.panStart(
+                        details.globalPosition.dx, details.globalPosition.dy);
+              },
+              onPanUpdate: (details) {
+                _rotate
+                    ? widget.controller.rotateUpdate(
+                        details.globalPosition.dx, details.globalPosition.dy)
+                    : widget.controller.panUpdate(
+                        details.globalPosition.dx, details.globalPosition.dy);
+              },
+              onPanEnd: (d) {
+                _rotate
+                    ? widget.controller.rotateEnd()
+                    : widget.controller.panEnd();
+              },
+              child: FilamentWidget(controller: widget.controller))),
+      widget.showControls
+          ? Padding(
+              padding: const EdgeInsets.all(50),
+              child: Row(children: [
+                Checkbox(
+                    value: _rotate,
+                    onChanged: (v) {
+                      setState(() {
+                        _rotate = v == true;
+                      });
+                    }),
+                ElevatedButton(
+                    onPressed: () => widget.controller.zoom(30.0),
+                    child: const Text('-')),
+                ElevatedButton(
+                    onPressed: () => widget.controller.zoom(-30.0),
+                    child: const Text('+'))
+              ]))
+          : Container()
+    ]);
   }
 }
+// behavior: HitTestBehavior.opaque,
+// onPanDown: (details) {
+//               _rotate
+//                   ? _filamentController.rotateStart(
+//                       details.globalPosition.dx, details.globalPosition.dy)
+//                   : _filamentController.panStart(
+//                       details.globalPosition.dx, details.globalPosition.dy);
+//             },
+//             onPanUpdate: (details) {
+//               _rotate
+//                   ? _filamentController.rotateUpdate(
+//                       details.globalPosition.dx, details.globalPosition.dy)
+//                   : _filamentController.panUpdate(
+//                       details.globalPosition.dx, details.globalPosition.dy);
+//             },
+//             onPanEnd: (d) {
+//               _rotate
+//                   ? _filamentController.rotateEnd()
+//                   : _filamentController.panEnd();
+//             },