1 files changed, 36 insertions, 0 deletions
diff --git a/examples/charts/chartsgallery/donutbreakdownmainslice.cpp b/examples/charts/chartsgallery/donutbreakdownmainslice.cpp
new file mode 100644
index 00000000..eb0dd4cb
--- /dev/null
+++ b/examples/charts/chartsgallery/donutbreakdownmainslice.cpp
@@ -0,0 +1,36 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+#include "donutbreakdownmainslice.h"
+
+//![1]
+DonutBreakdownMainSlice::DonutBreakdownMainSlice(QPieSeries *breakdownSeries, QObject *parent)
+    : QPieSlice(parent),
+      m_breakdownSeries(breakdownSeries)
+{
+    connect(this, &DonutBreakdownMainSlice::percentageChanged,
+            this, &DonutBreakdownMainSlice::updateLabel);
+}
+//![1]
+
+QPieSeries *DonutBreakdownMainSlice::breakdownSeries() const
+{
+    return m_breakdownSeries;
+}
+
+void DonutBreakdownMainSlice::setName(const QString &name)
+{
+    m_name = name;
+}
+
+QString DonutBreakdownMainSlice::name() const
+{
+    return m_name;
+}
+
+//![2]
+void DonutBreakdownMainSlice::updateLabel()
+{
+    setLabel(QString("%1 %2%").arg(m_name).arg(percentage() * 100, 0, 'f', 2));
+}
+//![2]