qwt_polar_magnifier.h

/******************************************************************************
 * QwtPolar Widget Library
 * Copyright (C) 2008   Uwe Rathmann
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/
 
#ifndef QWT_POLAR_MAGNIFIER_H
#define QWT_POLAR_MAGNIFIER_H
 
#include "qwt_global.h"
#include "qwt_magnifier.h"
 
class QwtPolarPlot;
class QwtPolarCanvas;
 
class QWT_EXPORT QwtPolarMagnifier : public QwtMagnifier
{
    Q_OBJECT
 
  public:
    explicit QwtPolarMagnifier( QwtPolarCanvas* );
    virtual ~QwtPolarMagnifier();
 
    void setUnzoomKey( int key, int modifiers );
    void getUnzoomKey( int& key, int& modifiers ) const;
 
    QwtPolarPlot* plot();
    const QwtPolarPlot* plot() const;
 
    QwtPolarCanvas* canvas();
    const QwtPolarCanvas* canvas() const;
 
  public Q_SLOTS:
    virtual void rescale( double factor ) override;
    void unzoom();
 
  protected:
    virtual void widgetKeyPressEvent( QKeyEvent* ) override;
 
  private:
    class PrivateData;
    PrivateData* m_data;
};
 
#endif