| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QSCROLLBAR_H |
| 5 | #define QSCROLLBAR_H |
| 6 | |
| 7 | #include <QtWidgets/qtwidgetsglobal.h> |
| 8 | #include <QtWidgets/qwidget.h> |
| 9 | |
| 10 | #include <QtWidgets/qabstractslider.h> |
| 11 | |
| 12 | QT_REQUIRE_CONFIG(scrollbar); |
| 13 | |
| 14 | QT_BEGIN_NAMESPACE |
| 15 | |
| 16 | class QScrollBarPrivate; |
| 17 | class QStyleOptionSlider; |
| 18 | |
| 19 | class Q_WIDGETS_EXPORT QScrollBar : public QAbstractSlider |
| 20 | { |
| 21 | Q_OBJECT |
| 22 | public: |
| 23 | explicit QScrollBar(QWidget *parent = nullptr); |
| 24 | explicit QScrollBar(Qt::Orientation, QWidget *parent = nullptr); |
| 25 | ~QScrollBar(); |
| 26 | |
| 27 | QSize sizeHint() const override; |
| 28 | bool event(QEvent *event) override; |
| 29 | |
| 30 | protected: |
| 31 | #if QT_CONFIG(wheelevent) |
| 32 | void wheelEvent(QWheelEvent *) override; |
| 33 | #endif |
| 34 | void paintEvent(QPaintEvent *) override; |
| 35 | void mousePressEvent(QMouseEvent *) override; |
| 36 | void mouseReleaseEvent(QMouseEvent *) override; |
| 37 | void mouseMoveEvent(QMouseEvent *) override; |
| 38 | void hideEvent(QHideEvent*) override; |
| 39 | void sliderChange(SliderChange change) override; |
| 40 | #ifndef QT_NO_CONTEXTMENU |
| 41 | void contextMenuEvent(QContextMenuEvent *) override; |
| 42 | #endif |
| 43 | virtual void initStyleOption(QStyleOptionSlider *option) const; |
| 44 | |
| 45 | |
| 46 | private: |
| 47 | friend class QAbstractScrollAreaPrivate; |
| 48 | friend Q_WIDGETS_EXPORT QStyleOptionSlider qt_qscrollbarStyleOption(QScrollBar *scrollBar); |
| 49 | |
| 50 | Q_DISABLE_COPY(QScrollBar) |
| 51 | Q_DECLARE_PRIVATE(QScrollBar) |
| 52 | #if QT_CONFIG(itemviews) |
| 53 | friend class QTableView; |
| 54 | friend class QTreeViewPrivate; |
| 55 | friend class QCommonListViewBase; |
| 56 | friend class QListModeViewBase; |
| 57 | friend class QAbstractItemView; |
| 58 | #endif |
| 59 | }; |
| 60 | |
| 61 | QT_END_NAMESPACE |
| 62 | |
| 63 | #endif // QSCROLLBAR_H |
| 64 |