overlay_scroll_bar.h

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#ifndef __OVERLAY_SCROLL_BAR_H__
#define __OVERLAY_SCROLL_BAR_H__
 
#include <QScrollBar>
 
class QProxyStyle;
 
class OverlayScrollBar : public QScrollBar
{
    Q_OBJECT
 
public:
    OverlayScrollBar(Qt::Orientation orientation, QWidget * parent = 0);
 
    virtual ~OverlayScrollBar();
 
    virtual QSize sizeHint() const;
 
    virtual int sliderPosition();
 
    void setNearOverlayImage(QImage &overlay_image, int packet_count = -1, int start_pos = -1, int end_pos = -1, QList<int> positions = QList<int>(), int rowHeight = 1);
 
    void setMarkedPacketImage(QImage &mp_image);
 
    QRect grooveRect();
 
public slots:
    void setChildRange(int min, int max) { child_sb_.setRange(min, max); }
 
protected:
    virtual void resizeEvent(QResizeEvent * event);
 
    virtual void paintEvent(QPaintEvent * event);
 
    virtual bool eventFilter(QObject *watched, QEvent *event);
 
    virtual void mousePressEvent(QMouseEvent *) { /* No-op */ }
 
    virtual void mouseReleaseEvent(QMouseEvent * event);
 
private:
    QProxyStyle* style_;
 
    QProxyStyle* child_style_;
 
    QScrollBar child_sb_;
 
    QImage packet_map_img_;
 
    QImage marked_packet_img_;
 
    int packet_map_width_;
 
    int marked_packet_width_;
 
    int packet_count_;
 
    int start_pos_;
 
    int end_pos_;
 
    QList<int> positions_;
 
    int row_height_;
 
#if QT_VERSION >= QT_VERSION_CHECK(6, 1, 0)
    void updateChildStyle();
#endif
};
 
#endif // __OVERLAY_SCROLL_BAR_H__