TD: fixes FreeCAD#12984: Doing Ctrl-Z in TechDraw reliably causes a s…

…egfault
davesrocketshop · Mar 16, 2024 · c19dedf · c19dedf
1 parent 0e123b3
commit c19dedf
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/Mod/TechDraw/Gui/ViewProviderViewPart.cpp b/src/Mod/TechDraw/Gui/ViewProviderViewPart.cpp
@@ -439,7 +439,12 @@ int ViewProviderViewPart::prefHighlightStyle()
 // TODO: does this need to be implemented for Leaderlines and ???? others?
 void ViewProviderViewPart::fixSceneDependencies()
 {
-    auto scene = getViewProviderPage()->getQGSPage();
+    auto page = getViewProviderPage();
+    if (!page) {
+        return;
+    }
+
+    auto scene = page->getQGSPage();
     auto partQView = getQView();
 
     auto dimensions =  getViewPart()->getDimensions();