pinned_column_view.h

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#ifndef PINNED_COLUMN_VIEW_H
#define PINNED_COLUMN_VIEW_H
 
#include <QTreeView>
#include <QPainter>
 
class QAbstractItemModel;
class QItemSelectionModel;
class PacketList;

class PinnedColumnView : public QTreeView
{
    Q_OBJECT
public:
    explicit PinnedColumnView(PacketList *packet_list, QWidget *parent = nullptr);

    void setFrozenColumnCount(int column_count);

    void mirrorSectionWidth(int column, int width);

    void mirrorHeaderHeight(int height);

    void refreshLayout();

    void mirrorSortIndicator(int column, Qt::SortOrder order);
 
public slots:
    void setVerticalScrollValue(int value);
 
protected:
    void mousePressEvent(QMouseEvent *event) override;
 
    // Forwards mouse releases to the primary packet list.
    void mouseReleaseEvent(QMouseEvent *event) override;

    void mouseMoveEvent(QMouseEvent *event) override;
 
    // Clears the reported hover row when the mouse leaves this view.
    void leaveEvent(QEvent *event) override;
 
    // Forwards context menu requests to the primary packet list.
    void contextMenuEvent(QContextMenuEvent *event) override;

    void wheelEvent(QWheelEvent *event) override;

    void drawRow(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;

    void resizeEvent(QResizeEvent *event) override;
 
private:
    PacketList *packet_list_;
    int frozen_column_count_;
 
    // Cell pressed with the left button, used to start a cell drag on the
    // first mouse move within it (as PacketList does). drag_row_ is -1 when no drag is armed.
    int drag_row_ = -1;
    int drag_column_ = -1;

    QWidget *right_divider_;
};
 
#endif // PINNED_COLUMN_VIEW_H