From 6cd1dc8b3f8c5390989c95494f3ac7a76de752a2 Mon Sep 17 00:00:00 2001
From: Jan Sundermeyer <sunderme@gmx.de>
Date: Sun, 19 May 2024 22:20:01 +0200
Subject: [PATCH] fix crash because pdf dockwidget interfere

fix #3658
---
 src/texstudio.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/texstudio.cpp b/src/texstudio.cpp
index f4b3d38367..277390b0c9 100644
--- a/src/texstudio.cpp
+++ b/src/texstudio.cpp
@@ -1364,9 +1364,13 @@ void Texstudio::setupMenus()
     int i=0;
     foreach (QDockWidget* dockWidget, dockWidgets) {
         if (dockWidget->toggleViewAction()) {
+            QLabel *lbl=qobject_cast<QLabel*>(dockWidget->titleBarWidget());
+            if(lbl == nullptr){
+                // dockwidget is not from sidepanel but pdf viewer
+                continue;
+            }
             auto *act=newManagedAction(submenu, QString("dockview_%1").arg(i),dockWidget->objectName(),SLOT(toggleDockVisibility()));
             act->setData(dockWidget->objectName());
-            QLabel *lbl=qobject_cast<QLabel*>(dockWidget->titleBarWidget());
             act->setText(lbl->text());
             act->setCheckable(true);
             bool hide=hiddenDocks.contains(dockWidget->objectName());