Qwt User's Guide: qwt_scale_div.h Source File

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# qwt_scale_div.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 #ifndef QWT_SCALE_DIV_H
    00011 #define QWT_SCALE_DIV_H
    00012
    00013 #include "qwt_global.h"
    00014 #include "qwt_valuelist.h"
    00015 #include "qwt_double_interval.h"
    00016
    00017 class QwtDoubleInterval;
    00018
    00030 class QWT_EXPORT QwtScaleDiv
    00031 {
    00032 public:
    00034     enum TickType
    00035     {
    00036         NoTick = -1,
    00037
    00038         MinorTick,
    00039         MediumTick,
    00040         MajorTick,
    00041
    00042         NTickTypes
    00043     };
    00044
    00045     explicit QwtScaleDiv();
    00046     explicit QwtScaleDiv(const QwtDoubleInterval &,
    00047         QwtValueList[NTickTypes]);
    00048     explicit QwtScaleDiv(double lowerBound, double upperBound,
    00049         QwtValueList[NTickTypes]);
    00050
    00051     int operator==(const QwtScaleDiv &s) const;
    00052     int operator!=(const QwtScaleDiv &s) const;
    00053
    00054     void setInterval(double lowerBound, double upperBound);
    00055     void setInterval(const QwtDoubleInterval &);
    00056     QwtDoubleInterval interval() const;
    00057
    00058     double lowerBound() const;
    00059     double upperBound() const;
    00060     double range() const;
    00061
    00062     bool contains(double v) const;
    00063
    00064     void setTicks(int type, const QwtValueList &);
    00065     const QwtValueList &ticks(int type) const;
    00066
    00067     void invalidate();
    00068     bool isValid() const;
    00069
    00070     void invert();
    00071
    00072 private:
    00073     double d_lowerBound;
    00074     double d_upperBound;
    00075     QwtValueList d_ticks[NTickTypes];
    00076
    00077     bool d_isValid;
    00078 };
    00079
    00085 inline void QwtScaleDiv::setInterval(double lowerBound, double upperBound)
    00086 {
    00087     d_lowerBound = lowerBound;
    00088     d_upperBound = upperBound;
    00089 }
    00090
    00094 inline QwtDoubleInterval QwtScaleDiv::interval() const
    00095 {
    00096     return QwtDoubleInterval(d_lowerBound, d_upperBound);
    00097 }
    00098
    00103 inline double QwtScaleDiv::lowerBound() const
    00104 {
    00105     return d_lowerBound;
    00106 }
    00107
    00112 inline double QwtScaleDiv::upperBound() const
    00113 {
    00114     return d_upperBound;
    00115 }
    00116
    00120 inline double QwtScaleDiv::range() const
    00121 {
    00122     return d_upperBound - d_lowerBound;
    00123 }
    00124 #endif