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*);
    ~QwtPolarMagnifier() override;
 
    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:
    QWT_DECLARE_PRIVATE(QwtPolarMagnifier)
};
 
#endif