Combine 2 more widget examples into graph gallery

Combine the 2 scatter graph examples into graph gallery example.
Note: surface examples will be combined into graph gallery
in other commits, to avoid making one gigantic commit.

Pick-to: 6.5
Task-number: QTBUG-110698
Change-Id: I8c50d07a31a8b1ee84596f4e216e629d88c7846a
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>

1 files changed, 26 insertions, 0 deletions

diff --git a/examples/datavisualization/graphgallery/scattergraph.h b/examples/datavisualization/graphgallery/scattergraph.h
new file mode 100644
index 00000000..6e34082d
--- /dev/null
+++ b/examples/datavisualization/graphgallery/scattergraph.h
@@ -0,0 +1,26 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#ifndef SCATTERGRAPH_H
+#define SCATTERGRAPH_H
+
+#include <QtCore/qobject.h>
+#include <QtDataVisualization/q3dscatter.h>
+
+class ScatterGraph : public QObject
+{
+    Q_OBJECT
+public:
+    explicit ScatterGraph();
+    ~ScatterGraph();
+
+    bool initialize();
+    QWidget *scatterWidget() { return m_scatterWidget; }
+
+private:
+    Q3DScatter *m_scatterGraph = nullptr;
+    QWidget *m_container = nullptr;
+    QWidget *m_scatterWidget = nullptr;
+};
+
+#endif