[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 | #ifndef QWT_INTERVAL_DATA_H
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| 11 | #define QWT_INTERVAL_DATA_H 1
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| 12 |
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| 13 | #include "qwt_global.h"
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| 14 | #include "qwt_math.h"
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| 15 | #include "qwt_array.h"
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| 16 | #include "qwt_double_interval.h"
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| 17 | #include "qwt_double_rect.h"
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| 18 |
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| 19 | #if defined(_MSC_VER) && (_MSC_VER > 1310)
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| 20 | #include <string.h>
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| 21 | #endif
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| 22 |
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| 23 | #if defined(QWT_TEMPLATEDLL)
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| 24 | // MOC_SKIP_BEGIN
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| 25 | template class QWT_EXPORT QwtArray<QwtDoubleInterval>;
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| 26 | template class QWT_EXPORT QwtArray<double>;
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| 27 | // MOC_SKIP_END
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| 28 | #endif
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| 29 |
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| 30 | /*!
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| 31 | \brief Series of samples of a value and an interval
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| 32 |
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| 33 | QwtIntervalData is a series of samples of a value and an interval.
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| 34 | F.e. error bars are built from samples [x, y1-y2], while a
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| 35 | histogram might consist of [x1-x2, y] samples.
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| 36 | */
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| 37 | class QWT_EXPORT QwtIntervalData
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| 38 | {
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| 39 | public:
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| 40 | QwtIntervalData();
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| 41 | QwtIntervalData(const QwtArray<QwtDoubleInterval> &,
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| 42 | const QwtArray<double> &);
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| 43 |
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| 44 | ~QwtIntervalData();
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| 45 |
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| 46 | void setData(const QwtArray<QwtDoubleInterval> &,
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| 47 | const QwtArray<double> &);
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| 48 |
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| 49 | size_t size() const;
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| 50 | const QwtDoubleInterval &interval(size_t i) const;
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| 51 | double value(size_t i) const;
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| 52 |
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| 53 | QwtDoubleRect boundingRect() const;
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| 54 |
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| 55 | private:
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| 56 | QwtArray<QwtDoubleInterval> d_intervals;
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| 57 | QwtArray<double> d_values;
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| 58 | };
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| 59 |
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| 60 | //! \return Number of samples
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| 61 | inline size_t QwtIntervalData::size() const
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| 62 | {
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| 63 | return qwtMin(d_intervals.size(), d_values.size());
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| 64 | }
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| 65 |
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| 66 | /*!
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| 67 | Interval of a sample
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| 68 |
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| 69 | \param i Sample index
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| 70 | \return Interval
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| 71 | \sa value(), size()
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| 72 | */
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| 73 | inline const QwtDoubleInterval &QwtIntervalData::interval(size_t i) const
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| 74 | {
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| 75 | return d_intervals[int(i)];
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| 76 | }
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| 77 |
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| 78 | /*!
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| 79 | Value of a sample
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| 80 |
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| 81 | \param i Sample index
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| 82 | \return Value
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| 83 | \sa interval(), size()
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| 84 | */
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| 85 | inline double QwtIntervalData::value(size_t i) const
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| 86 | {
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| 87 | return d_values[int(i)];
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| 88 | }
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| 89 |
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| 90 | #endif
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