1 files changed, 34 insertions, 0 deletions
diff --git a/examples/charts/chartsgallery/modeldatamodel.h b/examples/charts/chartsgallery/modeldatamodel.h
new file mode 100644
index 00000000..e8b2e1d1
--- /dev/null
+++ b/examples/charts/chartsgallery/modeldatamodel.h
@@ -0,0 +1,34 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#ifndef MODELDATAMODEL_H
+#define MODELDATAMODEL_H
+
+#include <QAbstractTableModel>
+#include <QMultiHash>
+#include <QRect>
+
+class ModelDataModel : public QAbstractTableModel
+{
+    Q_OBJECT
+public:
+    explicit ModelDataModel(QObject *parent = nullptr);
+
+    int rowCount(const QModelIndex &parent = QModelIndex()) const;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const;
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
+    Qt::ItemFlags flags(const QModelIndex &index) const;
+
+    void addMapping(const QString &color, const QRect &area);
+    void clearMapping() { m_mapping.clear(); }
+
+private:
+    QList<QList<qreal> *> m_data;
+    QMultiHash<QString, QRect> m_mapping;
+    int m_columnCount;
+    int m_rowCount;
+};
+
+#endif