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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SCROLLER_P_H
+#define SCROLLER_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 <QPoint>
+#include <QTimer>
+#include <QTime>
+
+#include "scroller.h"
+
+class AbstractScrollArea;
+
+class ScrollerPrivate
+{
+ Q_DECLARE_PUBLIC(Scroller)
+
+public:
+ enum State {
+ Stopped,
+ Started,
+ ManualScrolling,
+ AutoScrolling
+ };
+
+ ScrollerPrivate(Scroller *scroller);
+ ~ScrollerPrivate();
+ void stopScrolling();
+ bool eventFilter(QObject *obj, QEvent *ev);
+
+ AbstractScrollArea *m_scrollArea;
+ qreal m_scrollFactor;
+ QPoint m_cursorPos;
+ QPointF m_speed;
+ State m_state;
+ QTime m_lastCursorTime;
+ QTime m_lastFrameTime;
+ QTimer m_scrollTimer;
+ int m_scrollSlowAccum;
+
+private Q_SLOTS:
+
+ void updateScrolling();
+
+private:
+
+ Q_DISABLE_COPY(ScrollerPrivate)
+ Scroller * const q_ptr;
+ QPointF mapToScrollArea(const QPoint &point);
+ QWidget *m_eventViewport;
+};
+
+#endif // SCROLLER_P_H