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qwt_plot_classes.h

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00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
00002  * Qwt Widget Library
00003  * Copyright (C) 1997   Josef Wilgen
00004  * Copyright (C) 2002   Uwe Rathmann
00005  * 
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the Qwt License, Version 1.0
00008  *****************************************************************************/
00009 
00010 #ifndef QWT_PLOT_CLASSES_H
00011 #define QWT_PLOT_CLASSES_H
00012 
00013 #include "qwt_global.h"
00014 #include "qwt_plot_item.h"
00015 #include "qwt_marker.h"
00016 #include "qwt_curve.h"
00017 #include "qwt_grid.h"
00018 
00023 class QWT_EXPORT QwtPlotCurve: public QwtCurve, public QwtPlotMappedItem
00024 {
00025 public:
00027     QwtPlotCurve(QwtPlot* parent, const char *name = 0): 
00028         QwtCurve(name), QwtPlotMappedItem(parent) {}
00029 
00030   const QwtPlotCurve& operator=(const QwtPlotCurve &c)
00031   {
00032     QwtPlotMappedItem::operator=((const QwtPlotMappedItem &)c);
00033     QwtCurve::operator=(c);
00034     return *this;
00035   } 
00036 protected:
00038     virtual void curveChanged() { itemChanged(); }
00039 };
00040 
00044 class QWT_EXPORT QwtPlotGrid: public QwtGrid, public QwtPlotMappedItem
00045 {
00046 public:
00048     QwtPlotGrid(QwtPlot *parent): 
00049         QwtPlotMappedItem(parent) {}
00050 
00051 protected:
00053     virtual void gridChanged() { itemChanged(); }
00054 };
00055 
00056 
00060 class QWT_EXPORT QwtPlotMarker: public QwtMarker, public QwtPlotMappedItem 
00061 {
00062 public:
00064     QwtPlotMarker(QwtPlot *parent): 
00065         QwtPlotMappedItem(parent),
00066         d_xValue(0.0),
00067         d_yValue(0.0)
00068     {}
00069 
00071     double xValue() const { return d_xValue; }
00072 
00074     double yValue() const { return d_yValue; }
00075 
00077     void setXValue(double val) { d_xValue = val; markerChanged(); }
00078 
00080     void setYValue(double val) { d_yValue = val; markerChanged(); }
00081 
00082 protected:
00084     virtual void markerChanged() { itemChanged(); }
00085 
00086 private:
00087     double d_xValue;
00088     double d_yValue;
00089 };
00090 
00091 #endif

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