qt-everywhere-src-5.14.1/qtdatavis3d/examples/datavisualization/qmlaxisformatter/customformatter.h

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#ifndef CUSTOMFORMATTER_H
#define CUSTOMFORMATTER_H

#include <QtDataVisualization/QValue3DAxisFormatter>
#include <QtCore/QDateTime>
#include <QtCore/QVector>

using namespace QtDataVisualization;

//! [2]
class CustomFormatter : public QValue3DAxisFormatter
{
    //! [2]
    Q_OBJECT

    //! [1]
    Q_PROPERTY(QDate originDate READ originDate WRITE setOriginDate NOTIFY originDateChanged)
    //! [1]
    //! [3]
    Q_PROPERTY(QString selectionFormat READ selectionFormat WRITE setSelectionFormat NOTIFY selectionFormatChanged)
    //! [3]
public:
    explicit CustomFormatter(QObject *parent = 0);
    virtual ~CustomFormatter();

    //! [0]
    virtual QValue3DAxisFormatter *createNewInstance() const;
    virtual void populateCopy(QValue3DAxisFormatter &copy) const;
    virtual void recalculate();
    virtual QString stringForValue(qreal value, const QString &format) const;
    //! [0]

    QDate originDate() const;
    QString selectionFormat() const;

public Q_SLOTS:
    void setOriginDate(const QDate &date);
    void setSelectionFormat(const QString &format);

Q_SIGNALS:
    void originDateChanged(const QDate &date);
    void selectionFormatChanged(const QString &format);

private:
    Q_DISABLE_COPY(CustomFormatter)

    QDateTime valueToDateTime(qreal value) const;

    QDate m_originDate;
    QString m_selectionFormat;
};

#endif