sparkline_delegate.h

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#ifndef SPARKLINE_DELEGATE_H
#define SPARKLINE_DELEGATE_H
 
#include <QStyledItemDelegate>

class SparkLineDelegate : public QStyledItemDelegate
{
public:
    SparkLineDelegate(QWidget *parent = 0) : QStyledItemDelegate(parent) {}

    static constexpr int SecondaryPointsRole = Qt::UserRole + 1;

    static constexpr int GapValue = -1;
 
protected:
    void paint(QPainter *painter, const QStyleOptionViewItem &option,
               const QModelIndex &index) const override;

    QSize sizeHint(const QStyleOptionViewItem &option,
                   const QModelIndex &index) const override;

    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
 
signals:
 
public slots:
 
};
 
Q_DECLARE_METATYPE(QList<int>)
 
#endif // SPARKLINE_DELEGATE_H