Qwt User's Guide 6.2.0

qwt_polar_magnifier.h
1 /******************************************************************************
2 * QwtPolar Widget Library
3 * Copyright (C) 2008 Uwe Rathmann
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the Qwt License, Version 1.0
7 *****************************************************************************/
8
9 #ifndef QWT_POLAR_MAGNIFIER_H
10 #define QWT_POLAR_MAGNIFIER_H
11
12 #include "qwt_global.h"
13 #include "qwt_magnifier.h"
14
15 class QwtPolarPlot;
16 class QwtPolarCanvas;
17
30 class QWT_EXPORT QwtPolarMagnifier : public QwtMagnifier
31 {
32 Q_OBJECT
33
34 public:
35 explicit QwtPolarMagnifier( QwtPolarCanvas* );
36 virtual ~QwtPolarMagnifier();
37
38 void setUnzoomKey( int key, int modifiers );
39 void getUnzoomKey( int& key, int& modifiers ) const;
40
41 QwtPolarPlot* plot();
42 const QwtPolarPlot* plot() const;
43
44 QwtPolarCanvas* canvas();
45 const QwtPolarCanvas* canvas() const;
46
47 public Q_SLOTS:
48 virtual void rescale( double factor ) QWT_OVERRIDE;
49 void unzoom();
50
51 protected:
52 virtual void widgetKeyPressEvent( QKeyEvent* ) QWT_OVERRIDE;
53
54 private:
55 class PrivateData;
56 PrivateData* m_data;
57 };
58
59 #endif
QwtMagnifier
QwtMagnifier provides zooming, by magnifying in steps.
Definition: qwt_magnifier.h:28
QwtMagnifier::widgetKeyPressEvent
virtual void widgetKeyPressEvent(QKeyEvent *)
Definition: qwt_magnifier.cpp:473
QwtMagnifier::rescale
virtual void rescale(double factor)=0
QwtPolarCanvas
Canvas of a QwtPolarPlot.
Definition: qwt_polar_canvas.h:28
QwtPolarMagnifier
QwtPolarMagnifier provides zooming, by magnifying in steps.
Definition: qwt_polar_magnifier.h:31
QwtPolarPlot
A plotting widget, displaying a polar coordinate system.
Definition: qwt_polar_plot.h:47