QTableWidget添加带有复选框的表头

#ifndef SCHECKBOXHEADERVIEW_H
#define SCHECKBOXHEADERVIEW_H
#include <QtGui>
#include <QPainter>
#include <QHeaderView>
#include <QStyleOptionButton>
#include <QStyle>
class SCheckBoxHeaderView : public QHeaderView
{
    Q_OBJECT
private:
    bool isChecked;
    int m_checkColIdx;
public:
    SCheckBoxHeaderView( int checkColumnIndex, Qt::Orientation orientation, QWidget * parent = 0) :
    QHeaderView(orientation, parent) {
        m_checkColIdx = checkColumnIndex;
        isChecked = false;
    }
signals:
    void checkStausChange(bool);
protected:
    void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const {
        painter->save();
        QHeaderView::paintSection(painter, rect, logicalIndex);
        painter->restore();
        if (logicalIndex == m_checkColIdx) {
            QStyleOptionButton option;
            int width = 10;
            for (int i=0; i<logicalIndex; ++i)
            width += sectionSize( i );
            option.rect = QRect(3, 5, 21, 21);
            if (isChecked)
                option.state = QStyle::State_On;
            else
                option.state = QStyle::State_Off;
            this->style()->drawControl(QStyle::CE_CheckBox, &option, painter);
        }
    }
    void mousePressEvent(QMouseEvent *event) {
        if (visualIndexAt(event->pos().x()) == m_checkColIdx) {
            isChecked = !isChecked;
            this->updateSection(m_checkColIdx);
            emit checkStausChange(isChecked);
        }
        QHeaderView::mousePressEvent(event);
    }
};
#endif // SCHECKBOXHEADERVIEW_H
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版权声明：本文为CSDN博主「沙振宇」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/u014597198/java/article/details/77579070

m_checkHeader = new SCheckBoxHeaderView(0, Qt::Horizontal, this);
    this->setHorizontalHeader(m_checkHeader);   //  这个this指针的父为QTableWidget
    connect(m_checkHeader, &SCheckBoxHeaderView::checkStausChange, [=](bool check){
        qDebug() << "is:" <<check;
    });
————————————————
版权声明：本文为CSDN博主「沙振宇」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/u014597198/java/article/details/77579070

来源：oschina

链接：https://my.oschina.net/u/4337683/blog/4270241