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// Copyright (C) 2016 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 QSCROLLBAR_H
#define QSCROLLBAR_H
#include <QtWidgets/qtwidgetsglobal.h>
#include <QtWidgets/qwidget.h>
#include <QtWidgets/qabstractslider.h>
QT_REQUIRE_CONFIG(scrollbar);
QT_BEGIN_NAMESPACE
class QScrollBarPrivate;
class QStyleOptionSlider;
class Q_WIDGETS_EXPORT QScrollBar : public QAbstractSlider
{
Q_OBJECT
public:
explicit QScrollBar(QWidget *parent = nullptr);
explicit QScrollBar(Qt::Orientation, QWidget *parent = nullptr);
~QScrollBar();
QSize sizeHint() const override;
bool event(QEvent *event) override;
protected:
#if QT_CONFIG(wheelevent)
void wheelEvent(QWheelEvent *) override;
#endif
void paintEvent(QPaintEvent *) override;
void mousePressEvent(QMouseEvent *) override;
void mouseReleaseEvent(QMouseEvent *) override;
void mouseMoveEvent(QMouseEvent *) override;
void hideEvent(QHideEvent*) override;
void sliderChange(SliderChange change) override;
#ifndef QT_NO_CONTEXTMENU
void contextMenuEvent(QContextMenuEvent *) override;
#endif
virtual void initStyleOption(QStyleOptionSlider *option) const;
private:
friend class QAbstractScrollAreaPrivate;
friend Q_WIDGETS_EXPORT QStyleOptionSlider qt_qscrollbarStyleOption(QScrollBar *scrollBar);
Q_DISABLE_COPY(QScrollBar)
Q_DECLARE_PRIVATE(QScrollBar)
#if QT_CONFIG(itemviews)
friend class QTableView;
friend class QTreeViewPrivate;
friend class QCommonListViewBase;
friend class QListModeViewBase;
friend class QAbstractItemView;
#endif
};
QT_END_NAMESPACE
#endif // QSCROLLBAR_H
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