fDragRBState
state = fDragRBState;
delete fDragRBState;
PerspectiveBoxStates::DragState* fDragRBState;
state = fDragRBState;
fDragRBState(new DragCornerState(this, DragCornerState::RIGHT_BOTTOM_CORNER)),
delete fDragRBState;
TransformBoxStates::DragState* fDragRBState;