1 files changed, 49 insertions, 0 deletions
diff --git a/examples/qtconcurrent/primecounter/primecounter.h b/examples/qtconcurrent/primecounter/primecounter.h
new file mode 100644
index 0000000000..5b6d442cc8
--- /dev/null
+++ b/examples/qtconcurrent/primecounter/primecounter.h
@@ -0,0 +1,49 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef PRIMECOUNTER_H
+#define PRIMECOUNTER_H
+
+#include <QtWidgets/qdialog.h>
+#include <QtCore/qfuturewatcher.h>
+#include <QtConcurrent/qtconcurrentfilter.h>
+#include <QtConcurrent/qtconcurrentreducekernel.h>
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+class QProgressBar;
+namespace Ui {
+class PrimeCounter;
+}
+
+QT_END_NAMESPACE
+
+class PrimeCounter : public QDialog
+{
+    Q_OBJECT
+    using Element = unsigned long long;
+public:
+    explicit PrimeCounter(QWidget* parent = nullptr);
+    ~PrimeCounter() override;
+
+private:
+    static bool filterFunction(const Element &element);
+    static void reduceFunction(Element &out, const Element &value);
+    void fillElementList(unsigned int count);
+    Ui::PrimeCounter* setupUi();
+
+private slots:
+    void start();
+    void finish();
+
+private:
+    QList<Element> elementList;
+    QFutureWatcher<Element> watcher;
+    QtConcurrent::ReduceOptions currentReduceOpt;
+    QElapsedTimer timer;
+    QThreadPool pool;
+    unsigned int stepSize;
+    Ui::PrimeCounter *ui;
+};
+
+#endif //PRIMECOUNTER_H