qslider.h

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#ifndef QSLIDER_H
#define QSLIDER_H
 
#include <QtWidgets/qtwidgetsglobal.h>
 
#include <QtWidgets/qabstractslider.h>
 
QT_REQUIRE_CONFIG(slider);
 
QT_BEGIN_NAMESPACE
 
class QSliderPrivate;
class QStyleOptionSlider;
class Q_WIDGETS_EXPORT QSlider : public QAbstractSlider
{
    Q_OBJECT
 
    Q_PROPERTY(TickPosition tickPosition READ tickPosition WRITE setTickPosition)
    Q_PROPERTY(int tickInterval READ tickInterval WRITE setTickInterval)
 
public:
    enum TickPosition {
        NoTicks = 0,
        TicksAbove = 1,
        TicksLeft = TicksAbove,
        TicksBelow = 2,
        TicksRight = TicksBelow,
        TicksBothSides = 3
    };
    Q_ENUM(TickPosition)
 
    explicit QSlider(QWidget *parent = nullptr);
    explicit QSlider(Qt::Orientation orientation, QWidget *parent = nullptr);
 
    ~QSlider();
 
    QSize sizeHint() const override;
    QSize minimumSizeHint() const override;
 
    void setTickPosition(TickPosition position);
    TickPosition tickPosition() const;
 
    void setTickInterval(int ti);
    int tickInterval() const;
 
    bool event(QEvent *event) override;
 
protected:
    void paintEvent(QPaintEvent *ev) override;
    void mousePressEvent(QMouseEvent *ev) override;
    void mouseReleaseEvent(QMouseEvent *ev) override;
    void mouseMoveEvent(QMouseEvent *ev) override;
    virtual void initStyleOption(QStyleOptionSlider *option) const;
 
 
private:
    friend Q_WIDGETS_EXPORT QStyleOptionSlider qt_qsliderStyleOption(QSlider *slider);
 
    Q_DISABLE_COPY(QSlider)
    Q_DECLARE_PRIVATE(QSlider)
};
 
QT_END_NAMESPACE
 
#endif // QSLIDER_H