Give wxScrolledWindow its own Layout method that takes into account

the virtual size and scrolled offset of the window.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14597 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk1/scrolwin.h

@@ -108,6 +108,9 @@ public:
     // automatically change the origin according to the scroll position.
     virtual void PrepareDC(wxDC& dc);
 
+    // lay out the window and its children
+    virtual bool Layout();
+
     // Adjust the scrollbars
     virtual void AdjustScrollbars();