Fix build error: Allow changing the 3D Editor's background color

Task-number: QDS-6585
Change-Id: Id87e5403a3c6d398aa9ebf85cc97cc4c9bf7a2a2
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>

2 files changed, 7 insertions, 3 deletions

diff --git a/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.cpp b/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.cpp
index c947d8e155..76db41a177 100644
--- a/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.cpp
+++ b/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.cpp
@@ -65,7 +65,7 @@ void saveBackgroundColorConfiguration(const QList<QColor> &colorConfig)
 
 } // namespace
 
-QPointer<QColorDialog> BackgroundColorSelection::createDialog(QWidget *parent)
+QColorDialog *BackgroundColorSelection::createDialog(QWidget *parent)
 {
     auto dialog = new QColorDialog(parent);
 
@@ -100,4 +100,8 @@ void BackgroundColorSelection::showBackgroundColorSelectionWidget(QWidget *paren
 
     m_dialog = BackgroundColorSelection::createDialog(parent);
     QTC_ASSERT(m_dialog, return);
+
+    QObject::connect(m_dialog, &QWidget::destroyed, m_dialog, [&]() {
+        m_dialog = nullptr;
+    });
 }
diff --git a/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.h b/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.h
index d90693f03c..d8832f40fd 100644
--- a/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.h
+++ b/src/plugins/qmldesigner/components/edit3d/backgroundcolorselection.h
@@ -40,8 +40,8 @@ public:
     static void showBackgroundColorSelectionWidget(QWidget *parent);
 
 private:
-    static QPointer<QColorDialog> createDialog(QWidget *parent);
-    inline static QPointer<QColorDialog> m_dialog;
+    static QColorDialog *createDialog(QWidget *parent);
+    inline static QColorDialog *m_dialog = nullptr;
 };
 
 } // namespace QmlDesigner