Point *rowSmartPlacement(const Size &win_size, const Rect &space);
Point *colSmartPlacement(const Size &win_size, const Rect &space);
Point *const cascadePlacement(const OpenboxWindow &window, const Rect &space);
Point *rowSmartPlacement(const Size &win_size, const Rect &space);
Point *colSmartPlacement(const Size &win_size, const Rect &space);
Point *const cascadePlacement(const OpenboxWindow &window, const Rect &space);