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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#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 <QElapsedTimer>
#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;
QElapsedTimer m_lastCursorTime;
QElapsedTimer 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
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