src/core/point.h

   1 /*
   2   Copyright (c) 2006 Paolo Capriotti <p.capriotti@gmail.com>
   3             (c) 2006 Maurizio Monge <maurizio.monge@kdemail.net>
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9 */
  10
  11 #ifndef POINT_H
  12 #define POINT_H
  13
  14 #include <QDebug>
  15 #include <QMetaType>
  16 #include <QPoint>
  17
  18 #include "export.h"
  19
  20 struct TAGUA_EXPORT Point {
  21   static Point invalid() { return Point(-1, -1); }
  22   bool valid() const { return x != -1 && y != -1; }
  23
  24   int x, y;
  25   Point(int x, int y);
  26   Point();
  27
  28   QString row(int ysize) const;
  29   QString numcol(int xsize) const;
  30   QString col() const;
  31   QString alpharow() const;
  32
  33   explicit Point(const QString& str, int ysize);
  34   explicit Point(const QPoint&);
  35
  36   QString toString(int ysize) const;
  37
  38   Point operator+(const Point& other) const;
  39   Point operator+=(const Point& other);
  40   Point operator-() const;
  41   Point operator-(const Point& other) const;
  42   Point operator*(int n) const;
  43   Point operator/(int n) const;
  44   Point div(int n) const;
  45   bool operator==(const Point& other) const;
  46   bool operator!=(const Point& other) const;
  47   bool operator<(const Point& other) const;
  48   bool operator<=(const Point& other) const;
  49
  50   // true if for each coordinate of other, either it
  51   // is -1, or it is equal to the corresponding
  52   // coordinate of this
  53   bool resembles(const Point& other) const;
  54
  55   operator QPoint() const;
  56
  57   Point normalizeInfinity() const;
  58   double norm() const;
  59
  60 private:
  61   int normalizeInfinityHelper(int n) const;
  62 };
  63
  64 Q_DECLARE_METATYPE(Point)
  65
  66 TAGUA_EXPORT QDebug operator<<(QDebug, const Point&);
  67
  68
  69 #endif // POINT_H