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Diffstat (limited to 'src/libpcp_qwt/src/qwt_plot_magnifier.h')
-rw-r--r-- | src/libpcp_qwt/src/qwt_plot_magnifier.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/libpcp_qwt/src/qwt_plot_magnifier.h b/src/libpcp_qwt/src/qwt_plot_magnifier.h new file mode 100644 index 0000000..e7369c7 --- /dev/null +++ b/src/libpcp_qwt/src/qwt_plot_magnifier.h @@ -0,0 +1,55 @@ +/* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** + * Qwt Widget Library + * Copyright (C) 1997 Josef Wilgen + * Copyright (C) 2002 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_PLOT_MAGNIFIER_H +#define QWT_PLOT_MAGNIFIER_H 1 + +#include "qwt_global.h" +#include "qwt_magnifier.h" + +class QwtPlotCanvas; +class QwtPlot; + +/*! + \brief QwtPlotMagnifier provides zooming, by magnifying in steps. + + Using QwtPlotMagnifier a plot can be zoomed in/out in steps using + keys, the mouse wheel or moving a mouse button in vertical direction. + + Together with QwtPlotZoomer and QwtPlotPanner it is possible to implement + individual and powerful navigation of the plot canvas. + + \sa QwtPlotZoomer, QwtPlotPanner, QwtPlot +*/ +class QWT_EXPORT QwtPlotMagnifier: public QwtMagnifier +{ + Q_OBJECT + +public: + explicit QwtPlotMagnifier( QwtPlotCanvas * ); + virtual ~QwtPlotMagnifier(); + + void setAxisEnabled( int axis, bool on ); + bool isAxisEnabled( int axis ) const; + + QwtPlotCanvas *canvas(); + const QwtPlotCanvas *canvas() const; + + QwtPlot *plot(); + const QwtPlot *plot() const; + +protected: + virtual void rescale( double factor ); + +private: + class PrivateData; + PrivateData *d_data; +}; + +#endif |