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166 lines
3.8 KiB
166 lines
3.8 KiB
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- ***************************** |
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* Qwt Widget Library |
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* Copyright (C) 1997 Josef Wilgen |
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* Copyright (C) 2002 Uwe Rathmann |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the Qwt License, Version 1.0 |
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*****************************************************************************/ |
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// vim: expandtab |
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#ifndef QWT_DATA_H |
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#define QWT_DATA_H 1 |
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#include "qwt_global.h" |
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#include "qwt_array.h" |
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#include "qwt_double_rect.h" |
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#if QT_VERSION >= 0x040000 |
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#include <QPolygonF> |
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#endif |
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// MOC_SKIP_BEGIN |
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#if defined(QWT_TEMPLATEDLL) |
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template class QWT_EXPORT QwtArray<double>; |
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#if QT_VERSION < 0x040000 |
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#ifndef QWTARRAY_TEMPLATE_QWTDOUBLEPOINT // by mjo3 |
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#define QWTARRAY_TEMPLATE_QWTDOUBLEPOINT |
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template class QWT_EXPORT QwtArray<QwtDoublePoint>; |
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#endif //end of QWTARRAY_TEMPLATE_QWTDOUBLEPOINT |
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#endif |
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#endif |
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// MOC_SKIP_END |
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/*! |
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\brief QwtData defines an interface to any type of curve data. |
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Classes, derived from QwtData may: |
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- store the data in almost any type of container |
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- calculate the data on the fly instead of storing it |
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*/ |
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class QWT_EXPORT QwtData |
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{ |
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public: |
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QwtData(); |
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virtual ~QwtData(); |
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//! \return Pointer to a copy (virtual copy constructor) |
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virtual QwtData *copy() const = 0; |
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//! \return Size of the data set |
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virtual size_t size() const = 0; |
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/*! |
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Return the x value of data point i |
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\param i Index |
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\return x X value of data point i |
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*/ |
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virtual double x(size_t i) const = 0; |
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/*! |
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Return the y value of data point i |
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\param i Index |
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\return y Y value of data point i |
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*/ |
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virtual double y(size_t i) const = 0; |
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virtual QwtDoubleRect boundingRect() const; |
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protected: |
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/*! |
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Assignment operator (virtualized) |
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*/ |
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QwtData &operator=(const QwtData &); |
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}; |
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/*! |
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\brief Data class containing a single QwtArray<QwtDoublePoint> object. |
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*/ |
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class QWT_EXPORT QwtPolygonFData: public QwtData |
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{ |
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public: |
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#if QT_VERSION < 0x040000 |
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QwtPolygonFData(const QwtArray<QwtDoublePoint> &); |
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#else |
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QwtPolygonFData(const QPolygonF &); |
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#endif |
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QwtPolygonFData &operator=(const QwtPolygonFData &); |
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virtual QwtData *copy() const; |
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virtual size_t size() const; |
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virtual double x(size_t i) const; |
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virtual double y(size_t i) const; |
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#if QT_VERSION < 0x040000 |
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const QwtArray<QwtDoublePoint> &data() const; |
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#else |
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const QPolygonF &data() const; |
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#endif |
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private: |
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#if QT_VERSION < 0x040000 |
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QwtArray<QwtDoublePoint> d_data; |
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#else |
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QPolygonF d_data; |
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#endif |
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}; |
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/*! |
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\brief Data class containing two QwtArray<double> objects. |
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*/ |
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class QWT_EXPORT QwtArrayData: public QwtData |
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{ |
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public: |
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QwtArrayData(const QwtArray<double> &x, const QwtArray<double> &y); |
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QwtArrayData(const double *x, const double *y, size_t size); |
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QwtArrayData &operator=(const QwtArrayData &); |
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virtual QwtData *copy() const; |
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virtual size_t size() const; |
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virtual double x(size_t i) const; |
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virtual double y(size_t i) const; |
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const QwtArray<double> &xData() const; |
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const QwtArray<double> &yData() const; |
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virtual QwtDoubleRect boundingRect() const; |
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private: |
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QwtArray<double> d_x; |
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QwtArray<double> d_y; |
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}; |
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/*! |
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\brief Data class containing two pointers to memory blocks of doubles. |
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*/ |
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class QWT_EXPORT QwtCPointerData: public QwtData |
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{ |
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public: |
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QwtCPointerData(const double *x, const double *y, size_t size); |
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QwtCPointerData &operator=(const QwtCPointerData &); |
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virtual QwtData *copy() const; |
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virtual size_t size() const; |
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virtual double x(size_t i) const; |
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virtual double y(size_t i) const; |
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const double *xData() const; |
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const double *yData() const; |
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virtual QwtDoubleRect boundingRect() const; |
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private: |
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const double *d_x; |
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const double *d_y; |
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size_t d_size; |
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}; |
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#endif // !QWT_DATA
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