Qwt Polar User's Guide 1.0.0
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00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** 00002 * QwtPolar Widget Library 00003 * Copyright (C) 2008 Uwe Rathmann 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the Qwt License, Version 1.0 00007 *****************************************************************************/ 00008 00009 #ifndef QWT_POLAR_MAGNIFIER_H 00010 #define QWT_POLAR_MAGNIFIER_H 1 00011 00012 #include "qwt_polar_global.h" 00013 #include "qwt_magnifier.h" 00014 00015 class QwtPolarPlot; 00016 class QwtPolarCanvas; 00017 00030 class QWT_POLAR_EXPORT QwtPolarMagnifier: public QwtMagnifier 00031 { 00032 Q_OBJECT 00033 00034 public: 00035 explicit QwtPolarMagnifier( QwtPolarCanvas * ); 00036 virtual ~QwtPolarMagnifier(); 00037 00038 void setUnzoomKey( int key, int modifiers ); 00039 void getUnzoomKey( int &key, int &modifiers ) const; 00040 00041 QwtPolarPlot *plot(); 00042 const QwtPolarPlot *plot() const; 00043 00044 QwtPolarCanvas *canvas(); 00045 const QwtPolarCanvas *canvas() const; 00046 00047 protected: 00048 virtual void rescale( double factor ); 00049 void unzoom(); 00050 00051 virtual void widgetKeyPressEvent( QKeyEvent * ); 00052 00053 private: 00054 class PrivateData; 00055 PrivateData *d_data; 00056 }; 00057 00058 #endif