getBounds method

@override GRect? getBounds(GDisplayObject? targetSpace, [ GRect? out ])

Returns the bounds of this GShape in the coordinate system of the targetSpace object. If the out parameter is not null, the result will be stored in that object and returned. Otherwise, a new GRect object will be created and returned. If this GShape has no graphics, the bounds will be based on its position and size.

The matrix parameter is an optional matrix that is used to transform the bounds from the local coordinate space of this GShape to the coordinate space of the targetSpace object. If the matrix parameter is not specified, the identity matrix will be used.

The out parameter is an optional object that will be used to store the result. If it is not null, the result will be stored in that object and returned. Otherwise, a new GRect object will be created and returned.

Returns a GRect object representing the bounds of this GShape in the coordinate space of the targetSpace object.

Implementation

@override
GRect? getBounds(GDisplayObject? targetSpace, [GRect? out]) {
  final matrix = _sHelperMatrix;
  matrix.identity();
  getTransformationMatrix(targetSpace, matrix);
  if (_graphics != null) {
    /// todo: fix the rect size.
//      var _allBounds = _graphics.getAllBounds();
//      out?.setEmpty();
//      _allBounds.forEach((localBounds) {
//        out ??= GxRect();
//        /// modify the same instance.
//        out.expandToInclude(MatrixUtils.getTransformedBoundsRect(
//          matrix,
//          localBounds,
//          localBounds,
//        ));
//      });
    /// single bounds, all paths as 1 rect.
    return MatrixUtils.getTransformedBoundsRect(
      matrix,
      _graphics!.getBounds(out),
      out,
    );
  } else {
    final pos = GDisplayObjectContainer.$sBoundsPoint;
    matrix.transformCoords(0, 0, pos);
    out!.setTo(pos.x, pos.y, 0, 0);
  }
  return out;
}