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diff --git a/src/quickcontrols/universal/impl/qquickuniversalprogressbar_p.h b/src/quickcontrols/universal/impl/qquickuniversalprogressbar_p.h
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+++ b/src/quickcontrols/universal/impl/qquickuniversalprogressbar_p.h
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+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QQUICKUNIVERSALPROGRESSBAR_P_H
+#define QQUICKUNIVERSALPROGRESSBAR_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qcolor.h>
+#include <QtQuick/qquickitem.h>
+#include <QtCore/private/qglobal_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QQuickUniversalProgressBar : public QQuickItem
+{
+    Q_OBJECT
+    Q_PROPERTY(QColor color READ color WRITE setColor FINAL)
+    Q_PROPERTY(qreal progress READ progress WRITE setProgress FINAL)
+    Q_PROPERTY(bool indeterminate READ isIndeterminate WRITE setIndeterminate FINAL)
+    QML_NAMED_ELEMENT(ProgressBarImpl)
+    QML_ADDED_IN_VERSION(2, 0)
+
+public:
+    explicit QQuickUniversalProgressBar(QQuickItem *parent = nullptr);
+
+    QColor color() const;
+    void setColor(const QColor &color);
+
+    qreal progress() const;
+    void setProgress(qreal progress);
+
+    bool isIndeterminate() const;
+    void setIndeterminate(bool indeterminate);
+
+protected:
+    void itemChange(ItemChange change, const ItemChangeData &data) override;
+    QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *) override;
+
+private:
+    QColor m_color = Qt::black;
+    qreal m_progress = 0.0;
+    bool m_indeterminate = false;
+};
+
+QT_END_NAMESPACE
+
+#endif // QQUICKUNIVERSALPROGRESSBAR_P_H