[89] | 1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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| 2 | * Qwt Widget Library
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| 3 | * Copyright (C) 1997 Josef Wilgen
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| 4 | * Copyright (C) 2002 Uwe Rathmann
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the Qwt License, Version 1.0
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| 8 | *****************************************************************************/
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| 9 |
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| 10 | // vim: expandtab
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| 11 |
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| 12 | #ifndef QWT_DATA_H
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| 13 | #define QWT_DATA_H 1
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| 14 |
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| 15 | #include "qwt_global.h"
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| 16 | #include "qwt_array.h"
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| 17 | #include "qwt_double_rect.h"
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| 18 | #if QT_VERSION >= 0x040000
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| 19 | #include <QPolygonF>
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| 20 | #endif
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| 21 |
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| 22 | // MOC_SKIP_BEGIN
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| 23 |
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| 24 | #if defined(QWT_TEMPLATEDLL)
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| 25 |
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| 26 | template class QWT_EXPORT QwtArray<double>;
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| 27 |
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| 28 | #if QT_VERSION < 0x040000
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| 29 | #ifndef QWTARRAY_TEMPLATE_QWTDOUBLEPOINT // by mjo3
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| 30 | #define QWTARRAY_TEMPLATE_QWTDOUBLEPOINT
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| 31 | template class QWT_EXPORT QwtArray<QwtDoublePoint>;
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| 32 | #endif //end of QWTARRAY_TEMPLATE_QWTDOUBLEPOINT
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| 33 | #endif
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| 34 |
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| 35 | #endif
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| 36 |
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| 37 | // MOC_SKIP_END
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| 38 |
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| 39 | /*!
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| 40 | \brief QwtData defines an interface to any type of curve data.
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| 41 |
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| 42 | Classes, derived from QwtData may:
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| 43 | - store the data in almost any type of container
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| 44 | - calculate the data on the fly instead of storing it
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| 45 | */
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| 46 |
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| 47 | class QWT_EXPORT QwtData
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| 48 | {
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| 49 | public:
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| 50 | QwtData();
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| 51 | virtual ~QwtData();
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| 52 |
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| 53 | //! \return Pointer to a copy (virtual copy constructor)
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| 54 | virtual QwtData *copy() const = 0;
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| 55 |
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| 56 | //! \return Size of the data set
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| 57 | virtual size_t size() const = 0;
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| 58 |
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| 59 | /*!
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| 60 | Return the x value of data point i
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| 61 | \param i Index
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| 62 | \return x X value of data point i
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| 63 | */
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| 64 | virtual double x(size_t i) const = 0;
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| 65 | /*!
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| 66 | Return the y value of data point i
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| 67 | \param i Index
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| 68 | \return y Y value of data point i
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| 69 | */
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| 70 | virtual double y(size_t i) const = 0;
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| 71 |
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| 72 | virtual QwtDoubleRect boundingRect() const;
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| 73 |
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| 74 | protected:
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| 75 | /*!
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| 76 | Assignment operator (virtualized)
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| 77 | */
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| 78 | QwtData &operator=(const QwtData &);
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| 79 | };
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| 80 |
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| 81 |
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| 82 | /*!
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| 83 | \brief Data class containing a single QwtArray<QwtDoublePoint> object.
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| 84 | */
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| 85 | class QWT_EXPORT QwtPolygonFData: public QwtData
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| 86 | {
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| 87 | public:
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| 88 | #if QT_VERSION < 0x040000
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| 89 | QwtPolygonFData(const QwtArray<QwtDoublePoint> &);
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| 90 | #else
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| 91 | QwtPolygonFData(const QPolygonF &);
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| 92 | #endif
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| 93 |
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| 94 | QwtPolygonFData &operator=(const QwtPolygonFData &);
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| 95 | virtual QwtData *copy() const;
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| 96 |
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| 97 | virtual size_t size() const;
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| 98 | virtual double x(size_t i) const;
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| 99 | virtual double y(size_t i) const;
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| 100 |
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| 101 | #if QT_VERSION < 0x040000
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| 102 | const QwtArray<QwtDoublePoint> &data() const;
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| 103 | #else
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| 104 | const QPolygonF &data() const;
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| 105 | #endif
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| 106 |
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| 107 | private:
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| 108 | #if QT_VERSION < 0x040000
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| 109 | QwtArray<QwtDoublePoint> d_data;
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| 110 | #else
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| 111 | QPolygonF d_data;
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| 112 | #endif
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| 113 | };
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| 114 |
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| 115 | /*!
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| 116 | \brief Data class containing two QwtArray<double> objects.
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| 117 | */
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| 118 |
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| 119 | class QWT_EXPORT QwtArrayData: public QwtData
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| 120 | {
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| 121 | public:
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| 122 | QwtArrayData(const QwtArray<double> &x, const QwtArray<double> &y);
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| 123 | QwtArrayData(const double *x, const double *y, size_t size);
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| 124 | QwtArrayData &operator=(const QwtArrayData &);
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| 125 | virtual QwtData *copy() const;
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| 126 |
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| 127 | virtual size_t size() const;
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| 128 | virtual double x(size_t i) const;
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| 129 | virtual double y(size_t i) const;
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| 130 |
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| 131 | const QwtArray<double> &xData() const;
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| 132 | const QwtArray<double> &yData() const;
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| 133 |
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| 134 | virtual QwtDoubleRect boundingRect() const;
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| 135 |
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| 136 | private:
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| 137 | QwtArray<double> d_x;
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| 138 | QwtArray<double> d_y;
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| 139 | };
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| 140 |
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| 141 | /*!
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| 142 | \brief Data class containing two pointers to memory blocks of doubles.
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| 143 | */
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| 144 | class QWT_EXPORT QwtCPointerData: public QwtData
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| 145 | {
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| 146 | public:
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| 147 | QwtCPointerData(const double *x, const double *y, size_t size);
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| 148 | QwtCPointerData &operator=(const QwtCPointerData &);
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| 149 | virtual QwtData *copy() const;
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| 150 |
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| 151 | virtual size_t size() const;
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| 152 | virtual double x(size_t i) const;
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| 153 | virtual double y(size_t i) const;
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| 154 |
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| 155 | const double *xData() const;
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| 156 | const double *yData() const;
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| 157 |
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| 158 | virtual QwtDoubleRect boundingRect() const;
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| 159 |
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| 160 | private:
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| 161 | const double *d_x;
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| 162 | const double *d_y;
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| 163 | size_t d_size;
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| 164 | };
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| 165 |
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| 166 | #endif // !QWT_DATA
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