cvMultiColumnHeaderView.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#ifndef CV_MULTI_COLUMN_HEADER_VIEW_H
#define CV_MULTI_COLUMN_HEADER_VIEW_H
 
#include <QHeaderView>
#include <QPair>
 
class cvMultiColumnHeaderView : public QHeaderView {
    Q_OBJECT
    typedef QHeaderView Superclass;
 
public:
    cvMultiColumnHeaderView(Qt::Orientation orientation,
                            QWidget* parent = nullptr);
    ~cvMultiColumnHeaderView() override;
 
protected:
    void paintSection(QPainter* painter,
                      const QRect& rect,
                      int logicalIndex) const override;
 
private:
    QPair<int, int> sectionSpan(int visualIndex) const;
    QString sectionDisplayText(int logicalIndex) const;
 
    Q_DISABLE_COPY(cvMultiColumnHeaderView)
};
 
#endif  // CV_MULTI_COLUMN_HEADER_VIEW_H