1 files changed, 17 insertions, 0 deletions
diff --git a/src/datavisualization/data/qsurfacedataproxy.cpp b/src/datavisualization/data/qsurfacedataproxy.cpp
index aba2e288..4c6c85f7 100644
--- a/src/datavisualization/data/qsurfacedataproxy.cpp
+++ b/src/datavisualization/data/qsurfacedataproxy.cpp
@@ -158,6 +158,15 @@ void QSurfaceDataProxy::setRows(int rowIndex, const QSurfaceDataArray &rows)
 }
 
 /*!
+ * Changes a single item at \a rowIndex, \a columnIndex to the \a item.
+ */
+void QSurfaceDataProxy::setItem(int rowIndex, int columnIndex, const QSurfaceDataItem &item)
+{
+    dptr()->setItem(rowIndex, columnIndex, item);
+    emit itemChanged(rowIndex, columnIndex);
+}
+
+/*!
  * \return pointer to the data array.
  */
 const QSurfaceDataArray *QSurfaceDataProxy::array() const
@@ -273,6 +282,14 @@ void QSurfaceDataProxyPrivate::setRows(int rowIndex, const QSurfaceDataArray &ro
     }
 }
 
+void QSurfaceDataProxyPrivate::setItem(int rowIndex, int columnIndex, const QSurfaceDataItem &item)
+{
+    Q_ASSERT(rowIndex >= 0 && rowIndex < m_dataArray->size());
+    QSurfaceDataRow &row = *(*m_dataArray)[rowIndex];
+    Q_ASSERT(columnIndex < row.size());
+    row[columnIndex] = item;
+}
+
 QSurfaceDataProxy *QSurfaceDataProxyPrivate::qptr()
 {
     return static_cast<QSurfaceDataProxy *>(q_ptr);