1\section1 Layout Classes 2 3The Qt layout system provides a simple and powerful way of specifying 4the layout of child widgets. 5 6By specifying the logical layout once, you get the following benefits: 7 8\list 9 \li Positioning of child widgets. 10 \li Sensible default sizes for windows. 11 \li Sensible minimum sizes for windows. 12 \li ... 13\endlist 14