customformatter.h Example File

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#ifndef CUSTOMFORMATTER_H
#define CUSTOMFORMATTER_H
#include <QtDataVisualization/QValue3DAxisFormatter>
#include <QtCore/QDateTime>
#include <QtCore/QVector>
using namespace QtDataVisualization;
class CustomFormatter : public QValue3DAxisFormatter
{
    Q_OBJECT
    Q_PROPERTY(QDate originDate READ originDate WRITE setOriginDate NOTIFY originDateChanged)
    Q_PROPERTY(QString selectionFormat READ selectionFormat WRITE setSelectionFormat NOTIFY selectionFormatChanged)
public:
    explicit CustomFormatter(QObject *parent = 0);
    virtual ~CustomFormatter();
    virtual QValue3DAxisFormatter *createNewInstance() const;
    virtual void populateCopy(QValue3DAxisFormatter &copy) const;
    virtual void recalculate();
    virtual QString stringForValue(qreal value, const QString &format) const;
    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