Possible assert when hiding tabbed QDockWidget

The problem is in QTabBar which emits the currentChanged signal
before accessing its own internal data. As we react to that signal by
possibly removing/adding tabs, it can cause a assertion failure.

Task-number: 251184
Reviewed-by: ogoffart

1 files changed, 3 insertions, 3 deletions

diff --git a/src/gui/widgets/qtabbar.cpp b/src/gui/widgets/qtabbar.cpp
index b6e6b6dc29..b562b1fb28 100644
--- a/src/gui/widgets/qtabbar.cpp
+++ b/src/gui/widgets/qtabbar.cpp
@@ -1167,13 +1167,13 @@ void QTabBar::setCurrentIndex(int index)
         d->currentIndex = index;
         update();
         d->makeVisible(index);
+        d->tabList[index].lastTab = oldIndex;
+        d->layoutWidgets(oldIndex);
+        d->layoutWidgets(index);
 #ifdef QT3_SUPPORT
         emit selected(index);
 #endif
         emit currentChanged(index);
-        d->tabList[index].lastTab = oldIndex;
-        d->layoutWidgets(oldIndex);
-        d->layoutWidgets(index);
     }
 }