simple view layer: static screenspace widgets with working hittest

example/lib/app.dart

@@ -9,60 +9,35 @@ class App extends StatefulWidget {
 }
 
 class _AppState extends State<App> {
-  Offset _dragStartFocalPoint = Offset.zero;
-  Offset _lastFocalPoint = Offset.zero;
-  Offset _offset = Offset.zero;
-  double _scale = 1.0;
-
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      body: CanvasView(
+      body: SizedBox.expand(
-        children: [
+        child: CanvasView(
-          Container(width: 100, height: 100, color: Colors.red),
+          ssPositions: [Offset(100, 100), Offset(200, 200), Offset(300, 300)],
-          Container(width: 100, height: 100, color: Colors.green),
+          canvasBackground: SingleColorBackround(Colors.white),
-          Container(width: 100, height: 100, color: Colors.blue),
+          children: [
-        ],
+            InfoContainer(color: Colors.red),
-        positions: [
+            InfoContainer(color: Colors.green),
-          Offset(0, 0), // Position for red container
+            InfoContainer(color: Colors.blue),
-          Offset(200, 0), // Position for green container
+          ],
-          Offset(400, 0), // Position for blue container
+        ),
-        ],
-        offset: _offset,
-        scale: _scale,
-        handleScaleUpdate: (details) {
-          // double dampeningFactor = 0.1;
-          // double scaleDelta = (details.scale - 1) * dampeningFactor;
-          // double newScale = _scale * (1 + scaleDelta);
-          // newScale = newScale.clamp(0.4, 4.0);
-
-          // focal point in the coordinate system of the grid
-          Offset focalPoint = details.localFocalPoint;
-          Offset gridFocalPoint = (_offset + focalPoint) / _scale;
-
-          // new scale set
-          // _scale = newScale;
-
-          // adjust offset to keep the focal point stationary
-          _offset = gridFocalPoint * _scale - focalPoint;
-
-          // panning
-          if (_lastFocalPoint != null) {
-            // right is positive, down is positive
-            Offset delta = -(details.focalPoint - _lastFocalPoint!); //inverse panning (natural)
-            const sensitivity = 1.0; // Adjust sensitivity as needed
-            _offset += delta * sensitivity;
-          }
-          _lastFocalPoint = details.focalPoint;
-          setState(() {});
-        },
-        handleScaleStart: (details) {
-          _lastFocalPoint = details.localFocalPoint;
-          _dragStartFocalPoint = details.localFocalPoint;
-          setState(() {});
-        },
-        canvasBackground: const SingleColorBackround(Colors.white),
       ),
     );
   }
 }
+
+class InfoContainer extends StatelessWidget {
+  final Color color;
+  const InfoContainer({required this.color, super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: () {
+        print("tapped");
+      },
+      child: Container(color: color, width: 50, height: 50),
+    );
+  }
+}