struct AxisInfo [Sim/PlotInfo]
{
 private:
   QString _name;

 public:
   typedef enum
   {
      OptionFlag_NONE        = 0,
      OptionFlag_INCLUDEREF  = 1,
      OptionFlag_SYMMETRIC   = 2,
      OptionFlag_FLOATING    = 4,
      OptionFlag_LOGARITHMIC = 8,
      OptionFlag_INVERTED    = 16,
      OptionFlag_PROBABILITY = 32
   } OptionFlag;

   QString   _title;
   QString   _legacyUnitStr;
   int       _options;  // OptionFlag bit values
   double    _min;
   double    _max;
   char      _format;
   int       _precision;
   int       _maxMajTicks;
   int       _maxMinTicks;
   bool      _precisionSet;   // precision explicitly set instead of
                              // determined by plotted slots.
   bool      _useUserTitle;
   QString   _userTitle;
   bool      _useUnitName;

   DateLabelInfo _dateLabelInfo;
   LabelOrientInfo _labelOrientInfo;

   bool      _timeScaleAutoOnShow;
   QString   _timeScaleFormulaStart;
   QString   _timeScaleFormulaEnd;

 public:
   AxisInfo(const QString &name);
   AxisInfo(const AxisInfo &info);

   const QString& name() const { return _name; }

   static bool unitIsDateTime (const QString& unitName);
   bool unitIsDateTime() const { return unitIsDateTime (_legacyUnitStr); }

   bool rangeEqual (const AxisInfo& rhs) const;
   bool configEqual (const AxisInfo& rhs) const;
   bool operator== (const AxisInfo& rhs) const;
   bool operator!= (const AxisInfo& rhs) const;
};

class SlotPlot::AxisItem  // [Q3GUI/SlotPlot]
{
// This class handles the name of the unit associated with the axis
// and the displayed title of the axis

private:
   QString _userLabel;
   QString _userUnitName;
   bool _useUserLabel;
   bool _useUserUnitName;
   DateLabelInfo _dateLabelInfo;
   LabelOrientInfo _labelOrientInfo;

   bool     _timeScaleAutoOnShow;
   QString  _timeScaleFormulaStart;
   QString  _timeScaleFormulaEnd;

public:
   AxisItem ();
   virtual ~AxisItem();

   QString userUnitName() const       { return _userUnitName; }
   QString userLabel() const          { return _userLabel; }
   QString axisTitle() const;
   bool useUserLabel() const          { return _useUserLabel; }
   bool useUnitName() const           { return _useUserUnitName; }

   const DateLabelInfo&   dateLabelInfo()   const { return _dateLabelInfo; }
   const LabelOrientInfo& labelOrientInfo() const { return _labelOrientInfo; }

   void setUserUnitName(QString name) { _userUnitName = name; }
   void setUserLabel(QString name)    { _userLabel    = name; }
   void setUseUnitName(bool state)    { _useUserUnitName = state; }
   void setUseUserLabel(bool state)   { _useUserLabel = state; }

   void setDateLabelInfo(const DateLabelInfo& info)
                                      { _dateLabelInfo = info; }
   void setLabelOrientInfo(const LabelOrientInfo& info)
                                      { _labelOrientInfo = info; }
   bool axisIsDateTime() const;

   bool timeScaleApplyOnShow()     const { return _timeScaleAutoOnShow; }
   QString timeScaleFormulaStart() const { return _timeScaleFormulaStart; }
   QString timeScaleFormulaEnd()   const { return _timeScaleFormulaEnd; }

   void setTimeScalingInfo (bool timeScaleApplyOnShow,
                            const QString& timeScaleFormulaStart,
                            const QString& timeScaleFormulaEnd);
};