Qt Designer: Fix assert when switching from Docked to Top Level mode …

…with forms Clear the active window of the QMdiArea, fixing an assert: ASSERT failure in DockedMainWindow: "Called object is not of the correct type (class destructor may have already run)", file qobjectdefs_impl.h, line 155 when reparenting. Pick-to: 6.4 6.3 6.2 Change-Id: Ia8078475d55c5d18839973c512093b7fcc1960ec Reviewed-by: Jarek Kobus <[email protected]>
kriszz168 · Jun 28, 2022 · 3766369 · 3766369
1 parent e824a09
commit 3766369
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/designer/src/designer/qdesigner_workbench.cpp b/src/designer/src/designer/qdesigner_workbench.cpp
@@ -348,6 +348,9 @@ void QDesignerWorkbench::switchToNeutralMode()
         tw->setParent(nullptr);
     }
 
+    if (m_dockedMainWindow != nullptr) // Prevent assert
+        m_dockedMainWindow->mdiArea()->setActiveSubWindow(nullptr);
+
     for (QDesignerFormWindow *fw : qAsConst(m_formWindows)) {
         fw->setParent(nullptr);
         fw->setMaximumSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);