Set layout direction for all wxCompositeWindow parts.

Forward SetLayoutDirection() to both the base class and all the children, just
as we already do for the other setters.

See #11583.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77660 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/compositewin.h

@@ -94,6 +94,13 @@ public:
         return true;
     }
 
+    virtual void SetLayoutDirection(wxLayoutDirection dir)
+    {
+        BaseWindowClass::SetLayoutDirection(dir);
+
+        SetForAllParts(&wxWindowBase::SetLayoutDirection, dir);
+    }
+
 #if wxUSE_TOOLTIPS
     virtual void DoSetToolTip(wxToolTip *tip)
     {