diff -r 5dc02b23752f -r 3e2da88830cd tools/designer/src/lib/shared/qdesigner_toolbar.cpp
--- a/tools/designer/src/lib/shared/qdesigner_toolbar.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/tools/designer/src/lib/shared/qdesigner_toolbar.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -467,6 +467,7 @@
     switch (tb->orientation()) {
     case Qt::Horizontal:
         switch (tb->layoutDirection()) {
+        case Qt::LayoutDirectionAuto: // Should never happen
         case Qt::LeftToRight:
             rc.setX(exclusionRectangle.right() + 1);
             break;