1 files changed, 48 insertions, 0 deletions
diff --git a/examples/corelib/bindableproperties/subscription/subscription.h b/examples/corelib/bindableproperties/subscription/subscription.h
new file mode 100644
index 0000000000..8f0d34e948
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+++ b/examples/corelib/bindableproperties/subscription/subscription.h
@@ -0,0 +1,48 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef SUBSCRIPTION_H
+#define SUBSCRIPTION_H
+
+#include <QObject>
+#include <QPointer>
+
+class User;
+
+//! [subscription-class]
+
+class Subscription : public QObject
+{
+    Q_OBJECT
+public:
+    enum Duration { Monthly = 1, Quarterly = 3, Yearly = 12 };
+
+    Subscription(User *user);
+
+    void calculatePrice();
+    int price() const { return m_price; }
+
+    Duration duration() const { return m_duration; }
+    void setDuration(Duration newDuration);
+
+    bool isValid() const { return m_isValid; }
+    void updateValidity();
+
+signals:
+    void priceChanged();
+    void durationChanged();
+    void isValidChanged();
+
+private:
+    double calculateDiscount() const;
+    int basePrice() const;
+
+    QPointer<User> m_user;
+    Duration m_duration = Monthly;
+    int m_price = 0;
+    bool m_isValid = false;
+};
+
+//! [subscription-class]
+
+#endif // SUBSCRIPTION_H