bookdelegate.h Example File

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#ifndef BOOKDELEGATE_H
#define BOOKDELEGATE_H
#include <QModelIndex>
#include <QPixmap>
#include <QSize>
#include <QSqlRelationalDelegate>
QT_FORWARD_DECLARE_CLASS(QPainter)
class BookDelegate : public QSqlRelationalDelegate
{
public:
    BookDelegate(QObject *parent);
    void paint(QPainter *painter, const QStyleOptionViewItem &option,
               const QModelIndex &index) const override;
    QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
    bool editorEvent(QEvent *event, QAbstractItemModel *model,
                     const QStyleOptionViewItem &option,
                     const QModelIndex &index) override;
    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,
                                        const QModelIndex &index) const override;
private:
    QPixmap star;
};
#endif