1 files changed, 92 insertions, 0 deletions
diff --git a/examples/charts/chartsgallery/modeldatamodel.cpp b/examples/charts/chartsgallery/modeldatamodel.cpp
new file mode 100644
index 00000000..af5bc9dd
--- /dev/null
+++ b/examples/charts/chartsgallery/modeldatamodel.cpp
@@ -0,0 +1,92 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "modeldatamodel.h"
+
+#include <QColor>
+#include <QList>
+#include <QRandomGenerator>
+#include <QRect>
+
+ModelDataModel::ModelDataModel(QObject *parent) :
+    QAbstractTableModel(parent)
+{
+    m_columnCount = 4;
+    m_rowCount = 15;
+
+    // m_data
+    for (int i = 0; i < m_rowCount; i++) {
+        auto dataList = new QList<qreal>(m_columnCount);
+        for (int k = 0; k < dataList->size(); k++) {
+            if (k % 2 == 0)
+                dataList->replace(k, i * 50 + QRandomGenerator::global()->bounded(20));
+            else
+                dataList->replace(k, QRandomGenerator::global()->bounded(100));
+        }
+        m_data.append(dataList);
+    }
+}
+
+int ModelDataModel::rowCount(const QModelIndex &parent) const
+{
+    Q_UNUSED(parent);
+    return m_data.count();
+}
+
+int ModelDataModel::columnCount(const QModelIndex &parent) const
+{
+    Q_UNUSED(parent);
+    return m_columnCount;
+}
+
+QVariant ModelDataModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (role != Qt::DisplayRole)
+        return QVariant();
+
+    if (orientation == Qt::Horizontal) {
+        if (section % 2 == 0)
+            return "x";
+        else
+            return "y";
+    } else {
+        return QString("%1").arg(section + 1);
+    }
+}
+
+QVariant ModelDataModel::data(const QModelIndex &index, int role) const
+{
+    if (role == Qt::DisplayRole) {
+        return m_data[index.row()]->at(index.column());
+    } else if (role == Qt::EditRole) {
+        return m_data[index.row()]->at(index.column());
+    } else if (role == Qt::BackgroundRole) {
+        for (const QRect &rect : m_mapping) {
+            if (rect.contains(index.column(), index.row()))
+                return QColor(m_mapping.key(rect));
+        }
+        // cell not mapped return white color
+        return QColor(Qt::white);
+    }
+    return QVariant();
+}
+
+bool ModelDataModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+    if (index.isValid() && role == Qt::EditRole) {
+        m_data[index.row()]->replace(index.column(), value.toDouble());
+        emit dataChanged(index, index);
+        return true;
+    }
+    return false;
+}
+
+Qt::ItemFlags ModelDataModel::flags(const QModelIndex &index) const
+{
+    return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
+}
+
+void ModelDataModel::addMapping(const QString &color, const QRect &area)
+{
+    m_mapping.insert(color, area);
+}