public override void preroll(PrerollContext context, Matrix3 matrix) { Rect child_paint_bounds = Rect.zero; this.prerollChildren(context, matrix, ref child_paint_bounds); if (this._elevation == 0) { this.paintBounds = this._path.getBounds(); } else { Rect bounds = this._path.getBounds(); Rect outset = bounds.outset(20.0f, 20.0f); this.paintBounds = outset; } }