src/common/range.h

   1 #ifndef RANGE_H
   2 #define RANGE_H
   3
   4 #include <QtGlobal>
   5 #include <QDebug>
   6
   7 class Range
   8 {
   9 public:
  10         Range() {_min = 0; _max = 0;}
  11         Range(int min, int max) : _min(min), _max(max) {}
  12
  13         bool operator==(const Range &other) const
  14           {return _min == other._min && _max == other._max;}
  15         bool operator!=(const Range &other) const
  16           {return _min != other._min || _max != other._max;}
  17
  18         int size() const {return (_max - _min);}
  19         int min() const {return _min;}
  20         int max() const {return _max;}
  21
  22         bool isValid() const {return size() >= 0;}
  23         bool isNull() const {return _min == 0 && _max == 0;}
  24
  25         void setMin(int min) {_min = min;}
  26         void setMax(int max) {_max = max;}
  27
  28         bool contains(int val) const {return (val >= _min && val <= _max);}
  29
  30 private:
  31         int _min, _max;
  32 };
  33
  34 class RangeF
  35 {
  36 public:
  37         RangeF() {_min = 0; _max = 0;}
  38         RangeF(qreal min, qreal max) : _min(min), _max(max) {}
  39
  40         RangeF operator&(const RangeF &r) const;
  41         RangeF &operator&=(const RangeF &r) {*this = *this & r; return *this;}
  42
  43         qreal min() const {return _min;}
  44         qreal max() const {return _max;}
  45         qreal size() const {return (_max - _min);}
  46
  47         bool isNull() const {return _min == 0 && _max == 0;}
  48         bool isValid() const {return size() >= 0;}
  49
  50         void setMin(qreal min) {_min = min;}
  51         void setMax(qreal max) {_max = max;}
  52
  53         void resize(qreal size);
  54
  55 private:
  56         qreal _min, _max;
  57 };
  58
  59 #ifndef QT_NO_DEBUG
  60 QDebug operator<<(QDebug dbg, const Range &range);
  61 QDebug operator<<(QDebug dbg, const RangeF &range);
  62 #endif // QT_NO_DEBUG
  63
  64 #endif // RANGE_H