1 files changed, 45 insertions, 0 deletions
diff --git a/examples/datavisualization/graphgallery/variantdataset.cpp b/examples/datavisualization/graphgallery/variantdataset.cpp
new file mode 100644
index 00000000..3892f02b
--- /dev/null
+++ b/examples/datavisualization/graphgallery/variantdataset.cpp
@@ -0,0 +1,45 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "variantdataset.h"
+
+VariantDataSet::VariantDataSet() = default;
+
+VariantDataSet::~VariantDataSet()
+{
+    clear();
+}
+
+void VariantDataSet::clear()
+{
+    for (VariantDataItem *item : m_variantData) {
+        item->clear();
+        delete item;
+    }
+    m_variantData.clear();
+    emit dataCleared();
+}
+
+int VariantDataSet::addItem(VariantDataItem *item)
+{
+    m_variantData.append(item);
+    int addIndex =  m_variantData.size();
+
+    emit itemsAdded(addIndex, 1);
+    return addIndex;
+}
+
+int VariantDataSet::addItems(VariantDataItemList *itemList)
+{
+    int newCount = itemList->size();
+    int addIndex = m_variantData.size();
+    m_variantData.append(*itemList);
+    delete itemList;
+    emit itemsAdded(addIndex, newCount);
+    return addIndex;
+}
+
+const VariantDataItemList &VariantDataSet::itemList() const
+{
+    return m_variantData;
+}