Flutter: масштабирование и перевод изображения при масштабировании

Наконец я нашел решение сам. Выкладываю ниже, может кому-то поможет.

  void _mouseScroll(PointerSignalEvent event) {
    // Check if interaction is blocked
    if (_blockInteraction) return;

    if (event is PointerScrollEvent) {
      // Define zoom factor and extract vertical scroll delta
      double factor = 0.1;
      double deltaY = event.scrollDelta.dy;

      double startZoom = _userZoom;
      double newZoom = _userZoom;
      // Adjust zoom based on scroll direction
      if (deltaY > 0) {
        newZoom -= factor;
        newZoom = max(1, newZoom);
      } else if (deltaY < 0) {
        newZoom += factor;
        newZoom = min(7, newZoom);
      }

      // Get dimensions of the rendered image
      double imgW = _renderedImgConstraints.maxWidth;
      double imgH = _renderedImgConstraints.maxHeight;

      // Calculate the transformed local position of the pointer
      Offset transformedLocalPosition = event.localPosition * startZoom;
      // Calculate the size of the transformed image
      Size transformedImgSize = Size(
        imgW * startZoom,
        imgH * startZoom,
      );

      // Calculate the center offset point from the old zoomed view
      Offset realHitPoint = Offset(
        transformedLocalPosition.dx - transformedImgSize.width / 2,
        transformedLocalPosition.dy - transformedImgSize.height / 2,
      );
      // Calculate the center offset point from the old zoomed view
      Offset centerOffset = _translate + realHitPoint / startZoom;
      // Calculate the center offset point from the new zoomed view
      Offset centerZoomOffset = centerOffset * startZoom / newZoom;

      // Update translation and zoom values
      _translate -= centerOffset - centerZoomOffset;
      _userZoom = newZoom;

      // Set offset limits and trigger widget rebuild
      _setOffsetLimits();
      setState(() {});
    }
  }