/usr/include/qwt-qt4/qwt_double_range.h is in libqwt5-qt4-dev 5.2.3-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_DOUBLE_RANGE_H
#define QWT_DOUBLE_RANGE_H
#include "qwt_global.h"
/*!
\brief A class which controls a value within an interval
This class is useful as a base class or a member for sliders.
It represents an interval of type double within which a value can
be moved. The value can be either an arbitrary point inside
the interval (see QwtDoubleRange::setValue), or it can be fitted
into a step raster (see QwtDoubleRange::fitValue and
QwtDoubleRange::incValue).
As a special case, a QwtDoubleRange can be periodic, which means that
a value outside the interval will be mapped to a value inside the
interval when QwtDoubleRange::setValue(), QwtDoubleRange::fitValue(),
QwtDoubleRange::incValue() or QwtDoubleRange::incPages() are called.
*/
class QWT_EXPORT QwtDoubleRange
{
public:
QwtDoubleRange();
virtual ~QwtDoubleRange();
void setRange(double vmin, double vmax, double vstep = 0.0,
int pagesize = 1);
void setValid(bool);
bool isValid() const;
virtual void setValue(double);
double value() const;
void setPeriodic(bool tf);
bool periodic() const;
void setStep(double);
double step() const;
double maxValue() const;
double minValue() const;
int pageSize() const;
virtual void incValue(int);
virtual void incPages(int);
virtual void fitValue(double);
protected:
double exactValue() const;
double exactPrevValue() const;
double prevValue() const;
virtual void valueChange();
virtual void stepChange();
virtual void rangeChange();
private:
void setNewValue(double x, bool align = false);
double d_minValue;
double d_maxValue;
double d_step;
int d_pageSize;
bool d_isValid;
double d_value;
double d_exactValue;
double d_exactPrevValue;
double d_prevValue;
bool d_periodic;
};
#endif
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