diff -r 56cd8111b7f7 -r 41300fa6a67c src/gui/graphicsview/qgraphicslayout.cpp
--- a/src/gui/graphicsview/qgraphicslayout.cpp	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/gui/graphicsview/qgraphicslayout.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -148,6 +148,10 @@
     
     \a parent is passed to QGraphicsLayoutItem's constructor and the
     QGraphicsLayoutItem's isLayout argument is set to \e true.
+
+    If \a parent is a QGraphicsWidget the layout will be installed
+    on that widget. (Note that installing a layout will delete the old one
+    installed.)
 */
 QGraphicsLayout::QGraphicsLayout(QGraphicsLayoutItem *parent)
     : QGraphicsLayoutItem(*new QGraphicsLayoutPrivate)