Curve.h

/******************************************************************************************************
 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released      *
 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission.     *
 ******************************************************************************************************/
 
#ifndef CURVE_H
#define CURVE_H
 
#include "CallbackSearchReturn.h"
#include "ColorFilterSettings.h"
#include "CurveStyle.h"
#include "functor.h"
#include "Point.h"
#include "Points.h"
#include <QHash>
#include <QList>
#include <QString>
 
extern const QString AXIS_CURVE_NAME;
extern const QString DEFAULT_GRAPH_CURVE_NAME;
extern const QString DUMMY_CURVE_NAME;
 
class CurvesGraphs;
class QDataStream;
class QTextStream;
class QXmlStreamReader;
class QXmlStreamWriter;
class Transformation;
 
class Curve
{
public:
  Curve(const QString &curveName,
        const ColorFilterSettings &colorFilterSettings,
        const CurveStyle &curveStyle);
 
  Curve  (QDataStream &str);
 
  Curve (QXmlStreamReader &reader);
 
  Curve (const Curve &curve);
 
  Curve &operator=(const Curve &curve);
 
  void addPoint (Point point);
 
  ColorFilterSettings colorFilterSettings () const;
 
  QString curveName () const;
 
  CurveStyle curveStyle() const;
 
  void editPoint (const QPointF &posGraph,
                  const QString &identifier);
 
  void exportToClipboard (const QHash<QString, bool> &selectedHash,
                          const Transformation &transformation,
                          QTextStream &strCsv,
                          QTextStream &strHtml,
                          CurvesGraphs &curvesGraphs) const;
 
  bool isXOnly (const QString &pointIdentifier) const;
 
  void iterateThroughCurvePoints (const Functor2wRet<const QString &, const Point &, CallbackSearchReturn> &ftorWithCallback) const;
 
  void iterateThroughCurveSegments (const Functor2wRet<const Point &, const Point &, CallbackSearchReturn> &ftorWithCallback) const;
 
  void movePoint (const QString &pointIdentifier,
                  const QPointF &deltaScreen);
 
  int numPoints () const;
 
  const Points points () const;
 
  QPointF positionGraph (const QString &pointIdentifier) const;
 
  QPointF positionScreen (const QString &pointIdentifier) const;
 
  void printStream (QString indentation,
                    QTextStream &str) const;
 
  void removePoint (const QString &identifier);
 
  void saveXml(QXmlStreamWriter &writer) const;
 
  void setColorFilterSettings (const ColorFilterSettings &colorFilterSettings);
 
  void setCurveName (const QString &curveName);
 
  void setCurveStyle (const CurveStyle &curveStyle);
 
  void updatePointOrdinals (const Transformation &transformation);
 
private:
  Curve();
 
  void loadCurvePoints(QXmlStreamReader &reader);
  void loadXml(QXmlStreamReader &reader);
  Point *pointForPointIdentifier (const QString pointIdentifier);
  void updatePointOrdinalsFunctions (const Transformation &transformation);
  void updatePointOrdinalsRelations ();
 
  QString m_curveName;
  Points m_points;
 
  ColorFilterSettings m_colorFilterSettings;
  CurveStyle m_curveStyle;
};
 
#endif // CURVE_H