TransformationStateContext.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 TRANSFORMATION_STATE_CONTEXT_H
#define TRANSFORMATION_STATE_CONTEXT_H
 
#include <QVector>
#include "TransformationStateAbstractBase.h"
 
class CmdMediator;
class DocumentModelAxesChecker;
class QGraphicsScene;
class Transformation;
 
class TransformationStateContext
{
public:
  TransformationStateContext(QGraphicsScene &scene,
                             bool isGnuplot);
  virtual ~TransformationStateContext();
 
  bool isGnuplot () const;
 
  void resetOnLoad();
 
  void triggerStateTransition (TransformationState transformationState,
                               CmdMediator &cmdMediator,
                               const Transformation &transformation,
                               const QString &selectedGraphCurve);
 
  void updateAxesChecker (CmdMediator &cmdMediator,
                          const Transformation &transformation);
 
private:
  TransformationStateContext();
 
  QVector<TransformationStateAbstractBase*> m_states;
  TransformationState m_currentState;
  bool m_isGnuplot;
};
 
#endif // TRANSFORMATION_STATE_CONTEXT_H