Qwt User's Guide: qwt_data.h Source File

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# qwt_data.h

    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 // vim: expandtab
    00011
    00012 #ifndef QWT_DATA_H
    00013 #define QWT_DATA_H 1
    00014
    00015 #include "qwt_global.h"
    00016 #include "qwt_array.h"
    00017 #include "qwt_double_rect.h"
    00018 #if QT_VERSION >= 0x040000
    00019 #include <QPolygonF>
    00020 #endif
    00021
    00022 // MOC_SKIP_BEGIN
    00023
    00024 #if defined(QWT_TEMPLATEDLL)
    00025
    00026 template class QWT_EXPORT QwtArray<double>;
    00027
    00028 #if QT_VERSION < 0x040000
    00029 #ifndef QWTARRAY_TEMPLATE_QWTDOUBLEPOINT // by mjo3
    00030 #define QWTARRAY_TEMPLATE_QWTDOUBLEPOINT
    00031 template class QWT_EXPORT QwtArray<QwtDoublePoint>;
    00032 #endif //end of QWTARRAY_TEMPLATE_QWTDOUBLEPOINT
    00033 #endif
    00034
    00035 #endif
    00036
    00037 // MOC_SKIP_END
    00038
    00047 class QWT_EXPORT QwtData
    00048 {
    00049 public:
    00050     QwtData();
    00051     virtual ~QwtData();
    00052
    00054     virtual QwtData *copy() const = 0;
    00055
    00057     virtual size_t size() const = 0;
    00058
    00064     virtual double x(size_t i) const = 0;
    00070     virtual double y(size_t i) const = 0;
    00071
    00072     virtual QwtDoubleRect boundingRect() const;
    00073
    00074 protected:
    00078     QwtData &operator=(const QwtData &);
    00079 };
    00080
    00081
    00085 class QWT_EXPORT QwtPolygonFData: public QwtData
    00086 {
    00087 public:
    00088 #if QT_VERSION < 0x040000
    00089     QwtPolygonFData(const QwtArray<QwtDoublePoint> &);
    00090 #else
    00091     QwtPolygonFData(const QPolygonF &);
    00092 #endif
    00093
    00094     QwtPolygonFData &operator=(const QwtPolygonFData &);
    00095     virtual QwtData *copy() const;
    00096
    00097     virtual size_t size() const;
    00098     virtual double x(size_t i) const;
    00099     virtual double y(size_t i) const;
    00100
    00101 #if QT_VERSION < 0x040000
    00102     const QwtArray<QwtDoublePoint> &data() const;
    00103 #else
    00104     const QPolygonF &data() const;
    00105 #endif
    00106
    00107 private:
    00108 #if QT_VERSION < 0x040000
    00109     QwtArray<QwtDoublePoint> d_data;
    00110 #else
    00111     QPolygonF d_data;
    00112 #endif
    00113 };
    00114
    00119 class QWT_EXPORT QwtArrayData: public QwtData
    00120 {
    00121 public:
    00122     QwtArrayData(const QwtArray<double> &x, const QwtArray<double> &y);
    00123     QwtArrayData(const double *x, const double *y, size_t size);
    00124     QwtArrayData &operator=(const QwtArrayData &);
    00125     virtual QwtData *copy() const;
    00126
    00127     virtual size_t size() const;
    00128     virtual double x(size_t i) const;
    00129     virtual double y(size_t i) const;
    00130
    00131     const QwtArray<double> &xData() const;
    00132     const QwtArray<double> &yData() const;
    00133
    00134     virtual QwtDoubleRect boundingRect() const;
    00135
    00136 private:
    00137     QwtArray<double> d_x;
    00138     QwtArray<double> d_y;
    00139 };
    00140
    00144 class QWT_EXPORT QwtCPointerData: public QwtData
    00145 {
    00146 public:
    00147     QwtCPointerData(const double *x, const double *y, size_t size);
    00148     QwtCPointerData &operator=(const QwtCPointerData &);
    00149     virtual QwtData *copy() const;
    00150
    00151     virtual size_t size() const;
    00152     virtual double x(size_t i) const;
    00153     virtual double y(size_t i) const;
    00154
    00155     const double *xData() const;
    00156     const double *yData() const;
    00157
    00158     virtual QwtDoubleRect boundingRect() const;
    00159
    00160 private:
    00161     const double *d_x;
    00162     const double *d_y;
    00163     size_t d_size;
    00164 };
    00165
    00166 #endif // !QWT_DATA