question: returns the root of this element 's hierarchy , or null if the element is not currently added to a hierarchy . concode_field_sep Elements<?> _parent concode_elem_sep Dimension _size concode_elem_sep int _flags concode_elem_sep GroupLayer layer concode_elem_sep Layout.Constraint _constraint concode_elem_sep Dimension _preferredSize concode_elem_sep Styles _styles concode_elem_sep Signal<Boolean> _hierarchyChanged concode_elem_sep int mask concode_field_sep T setStyles concode_elem_sep T setStyles concode_elem_sep Elements<?> parent concode_elem_sep Dimension computeSize concode_elem_sep void clearLayoutData concode_elem_sep Slot<Boolean> enabledSlot concode_elem_sep boolean isShowing concode_elem_sep T setConstraint concode_elem_sep T setSize concode_elem_sep void setLocation concode_elem_sep Slot<Boolean> visibleSlot concode_elem_sep SignalView<Boolean> hierarchyChanged concode_elem_sep boolean isAdded concode_elem_sep boolean isSelected concode_elem_sep IDimension preferredSize concode_elem_sep V resolveStyle concode_elem_sep void validate concode_elem_sep T setVisible concode_elem_sep T asT concode_elem_sep void set concode_elem_sep boolean isSet concode_elem_sep boolean isVisible concode_elem_sep void invalidate concode_elem_sep void layout concode_elem_sep T setEnabled concode_elem_sep void wasRemoved concode_elem_sep boolean contains concode_elem_sep T addStyles concode_elem_sep T addStyles concode_elem_sep IDimension size concode_elem_sep boolean isEnabled concode_elem_sep float x concode_elem_sep IRectangle bounds concode_elem_sep float y concode_elem_sep IPoint location concode_elem_sep Styles styles concode_elem_sep Layout.Constraint constraint concode_elem_sep void wasAdded
target: Root function ( ) { return ( _parent == null ) ? null : _parent . root ( ) ; }