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#ifndef POINT_H
#define POINT_H
typedef int QCOORD;
class Point
{
public:
Point();
Point( int xpos, int ypos );
bool isNull() const;
int x() const;
int y() const;
void setX( int x );
void setY( int y );
int manhattanLength() const;
QCOORD &rx();
QCOORD &ry();
Point &operator+=( const Point &p );
Point &operator-=( const Point &p );
Point &operator*=( int c );
Point &operator*=( double c );
Point &operator/=( int c );
Point &operator/=( double c );
friend inline bool operator==( const Point &, const Point & );
friend inline bool operator!=( const Point &, const Point & );
friend inline const Point operator+( const Point &, const Point & );
friend inline const Point operator-( const Point &, const Point & );
friend inline const Point operator*( const Point &, int );
friend inline const Point operator*( int, const Point & );
friend inline const Point operator*( const Point &, double );
friend inline const Point operator*( double, const Point & );
friend inline const Point operator-( const Point & );
friend inline const Point operator/( const Point &, int );
friend inline const Point operator/( const Point &, double );
private:
QCOORD xp;
QCOORD yp;
};
static void warningDivByZero() {
// cout << "warning: dividing by zero"
}
/*****************************************************************************
Point inline functions
*****************************************************************************/
inline Point::Point()
{ xp=0; yp=0; }
inline Point::Point( int xpos, int ypos )
{ xp=(QCOORD)xpos; yp=(QCOORD)ypos; }
inline bool Point::isNull() const
{ return xp == 0 && yp == 0; }
inline int Point::x() const
{ return xp; }
inline int Point::y() const
{ return yp; }
inline void Point::setX( int x )
{ xp = (QCOORD)x; }
inline void Point::setY( int y )
{ yp = (QCOORD)y; }
inline QCOORD &Point::rx()
{ return xp; }
inline QCOORD &Point::ry()
{ return yp; }
inline Point &Point::operator+=( const Point &p )
{ xp+=p.xp; yp+=p.yp; return *this; }
inline Point &Point::operator-=( const Point &p )
{ xp-=p.xp; yp-=p.yp; return *this; }
inline Point &Point::operator*=( int c )
{ xp*=(QCOORD)c; yp*=(QCOORD)c; return *this; }
inline Point &Point::operator*=( double c )
{ xp=(QCOORD)(xp*c); yp=(QCOORD)(yp*c); return *this; }
inline bool operator==( const Point &p1, const Point &p2 )
{ return p1.xp == p2.xp && p1.yp == p2.yp; }
inline bool operator!=( const Point &p1, const Point &p2 )
{ return p1.xp != p2.xp || p1.yp != p2.yp; }
inline const Point operator+( const Point &p1, const Point &p2 )
{ return Point(p1.xp+p2.xp, p1.yp+p2.yp); }
inline const Point operator-( const Point &p1, const Point &p2 )
{ return Point(p1.xp-p2.xp, p1.yp-p2.yp); }
inline const Point operator*( const Point &p, int c )
{ return Point(p.xp*c, p.yp*c); }
inline const Point operator*( int c, const Point &p )
{ return Point(p.xp*c, p.yp*c); }
inline const Point operator*( const Point &p, double c )
{ return Point((QCOORD)(p.xp*c), (QCOORD)(p.yp*c)); }
inline const Point operator*( double c, const Point &p )
{ return Point((QCOORD)(p.xp*c), (QCOORD)(p.yp*c)); }
inline const Point operator-( const Point &p )
{ return Point(-p.xp, -p.yp); }
inline Point &Point::operator/=( int c )
{
if ( c == 0 )
warningDivByZero();
xp/=(QCOORD)c;
yp/=(QCOORD)c;
return *this;
}
inline Point &Point::operator/=( double c )
{
if ( c == 0.0 )
warningDivByZero();
xp=(QCOORD)(xp/c);
yp=(QCOORD)(yp/c);
return *this;
}
inline const Point operator/( const Point &p, int c )
{
if ( c == 0 )
warningDivByZero();
return Point(p.xp/c, p.yp/c);
}
inline const Point operator/( const Point &p, double c )
{
if ( c == 0.0 )
warningDivByZero();
return Point((QCOORD)(p.xp/c), (QCOORD)(p.yp/c));
}
#endif // POINT_H
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