ViewPreview.h

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/******************************************************************************************************
 * (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 VIEW_PREVIEW_H
#define VIEW_PREVIEW_H
 
#include <QGraphicsView>
#include <QPointF>

class ViewPreview : public QGraphicsView
{
  Q_OBJECT;
 
public:

  enum ViewAspectRatio {
    VIEW_ASPECT_RATIO_VARIABLE,
    VIEW_ASPECT_RATIO_ONE_TO_ONE
  };

  ViewPreview(QGraphicsScene *scene,
              ViewAspectRatio viewAspectRatio,
              QWidget *parent = 0);

  virtual void mouseMoveEvent(QMouseEvent *event);

  virtual void resizeEvent(QResizeEvent *event);

  virtual void wheelEvent (QWheelEvent *event);
 
signals:
  void signalMouseMove (QPointF pos);
 
private:
  ViewPreview();
 
  ViewAspectRatio m_viewAspectRatio;
 
};
 
#endif // VIEW_PREVIEW_H