src/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 <QPoint>
  15 #include <iostream>
  16
  17 #include "export.h"
  18
  19 struct TAGUA_EXPORT Point {
  20   static Point invalid() { return Point(-1, -1); }
  21   bool valid() const { return x != -1 && y != -1; }
  22
  23   int x, y;
  24   Point(int x, int y);
  25   Point();
  26
  27   QString row(int ysize) const;
  28   QString numcol(int xsize) const;
  29   QString col() const;
  30   QString alpharow() const;
  31
  32   explicit Point(const QString& str, int ysize);
  33   explicit Point(const QPoint&);
  34
  35   QString toString(int ysize) const;
  36
  37   Point operator+(const Point& other) const;
  38   Point operator+=(const Point& other);
  39   Point operator-() const;
  40   Point operator-(const Point& other) const;
  41   Point operator*(int n) const;
  42   Point operator/(int n) const;
  43   Point div(int n) const;
  44   bool operator==(const Point& other) const;
  45   bool operator!=(const Point& other) const;
  46   bool operator<(const Point& other) const;
  47   bool operator<=(const Point& other) const;
  48
  49   // true if for each coordinate of other, either it
  50   // is -1, or it is equal to the corresponding
  51   // coordinate of this
  52   bool resembles(const Point& other) const;
  53
  54   operator QPoint() const;
  55
  56   Point normalizeInfinity() const;
  57   double norm() const;
  58
  59 private:
  60   int normalizeInfinityHelper(int n) const;
  61 };
  62
  63 TAGUA_EXPORT QDebug operator<<(QDebug dbg, const Point& c);
  64
  65 #endif // POINT_H