/****************************************************************************
** $Id: qpoint.h,v 2.4.2.3 1998/11/02 16:09:37 hanord Exp $
**
** Definition of QPoint class
**
** Created : 931028
**
** Copyright (C) 1992-1999 Troll Tech AS. All rights reserved.
**
** This file is part of Qt Free Edition, version 1.45.
**
** See the file LICENSE included in the distribution for the usage
** and distribution terms, or http://www.troll.no/free-license.html.
**
** IMPORTANT NOTE: You may NOT copy this file or any part of it into
** your own programs or libraries.
**
** Please see http://www.troll.no/pricing.html for information about
** Qt Professional Edition, which is this same library but with a
** license which allows creation of commercial/proprietary software.
**
*****************************************************************************/
#ifndef QPOINT_H
#define QPOINT_H
#ifndef QT_H
#include "qwindowdefs.h"
#endif // QT_H
#if (defined(QPOINT_C) || defined(DEBUG)) && !defined(_OS_WIN32_)
#define QPOINT_DEBUG
#endif
class Q_EXPORT QPoint
{
public:
QPoint() {}
QPoint( int xpos, int ypos );
bool isNull() const;
int x() const;
int y() const;
void setX( int x );
void setY( int y );
QCOORD &rx();
QCOORD &ry();
QPoint &operator+=( const QPoint &p );
QPoint &operator-=( const QPoint &p );
QPoint &operator*=( int c );
QPoint &operator*=( double c );
QPoint &operator/=( int c );
QPoint &operator/=( double c );
friend inline bool operator==( const QPoint &, const QPoint & );
friend inline bool operator!=( const QPoint &, const QPoint & );
friend inline QPoint operator+( const QPoint &, const QPoint & );
friend inline QPoint operator-( const QPoint &, const QPoint & );
friend inline QPoint operator*( const QPoint &, int );
friend inline QPoint operator*( int, const QPoint & );
friend inline QPoint operator*( const QPoint &, double );
friend inline QPoint operator*( double, const QPoint & );
friend inline QPoint operator-( const QPoint & );
#if defined(QPOINT_DEBUG)
friend Q_EXPORT QPoint operator/( const QPoint &, int );
friend Q_EXPORT QPoint operator/( const QPoint &, double );
#else
friend inline QPoint operator/( const QPoint &, int );
friend inline QPoint operator/( const QPoint &, double );
#endif
static void warningDivByZero();
private:
#if defined(_OS_MAC_)
QCOORD yp;
QCOORD xp;
#else
QCOORD xp;
QCOORD yp;
#endif
};
/*****************************************************************************
QPoint stream functions
*****************************************************************************/
Q_EXPORT QDataStream &operator<<( QDataStream &, const QPoint & );
Q_EXPORT QDataStream &operator>>( QDataStream &, QPoint & );
/*****************************************************************************
QPoint inline functions
*****************************************************************************/
inline QPoint::QPoint( int xpos, int ypos )
{ xp=(QCOORD)xpos; yp=(QCOORD)ypos; }
inline bool QPoint::isNull() const
{ return xp == 0 && yp == 0; }
inline int QPoint::x() const
{ return xp; }
inline int QPoint::y() const
{ return yp; }
inline void QPoint::setX( int x )
{ xp = (QCOORD)x; }
inline void QPoint::setY( int y )
{ yp = (QCOORD)y; }
inline QCOORD &QPoint::rx()
{ return xp; }
inline QCOORD &QPoint::ry()
{ return yp; }
inline QPoint &QPoint::operator+=( const QPoint &p )
{ xp+=p.xp; yp+=p.yp; return *this; }
inline QPoint &QPoint::operator-=( const QPoint &p )
{ xp-=p.xp; yp-=p.yp; return *this; }
inline QPoint &QPoint::operator*=( int c )
{ xp*=(QCOORD)c; yp*=(QCOORD)c; return *this; }
inline QPoint &QPoint::operator*=( double c )
{ xp=(QCOORD)(xp*c); yp=(QCOORD)(yp*c); return *this; }
inline bool operator==( const QPoint &p1, const QPoint &p2 )
{ return p1.xp == p2.xp && p1.yp == p2.yp; }
inline bool operator!=( const QPoint &p1, const QPoint &p2 )
{ return p1.xp != p2.xp || p1.yp != p2.yp; }
inline QPoint operator+( const QPoint &p1, const QPoint &p2 )
{ return QPoint(p1.xp+p2.xp, p1.yp+p2.yp); }
inline QPoint operator-( const QPoint &p1, const QPoint &p2 )
{ return QPoint(p1.xp-p2.xp, p1.yp-p2.yp); }
inline QPoint operator*( const QPoint &p, int c )
{ return QPoint(p.xp*c, p.yp*c); }
inline QPoint operator*( int c, const QPoint &p )
{ return QPoint(p.xp*c, p.yp*c); }
inline QPoint operator*( const QPoint &p, double c )
{ return QPoint((QCOORD)(p.xp*c), (QCOORD)(p.yp*c)); }
inline QPoint operator*( double c, const QPoint &p )
{ return QPoint((QCOORD)(p.xp*c), (QCOORD)(p.yp*c)); }
inline QPoint operator-( const QPoint &p )
{ return QPoint(-p.xp, -p.yp); }
//
// The QPoint functions below are inline if DEBUG is not defined.
// The debug implementation in qpoint.cpp checks c and gives a warning
// before dividing by zero.
//
#if !defined(QPOINT_DEBUG)
inline QPoint &QPoint::operator/=( int c )
{
#if defined(CHECK_MATH)
if ( c == 0 )
warningDivByZero();
#endif
xp/=(QCOORD)c;
yp/=(QCOORD)c;
return *this;
}
inline QPoint &QPoint::operator/=( double c )
{
#if defined(CHECK_MATH)
if ( c == 0.0 )
warningDivByZero();
#endif
xp=(QCOORD)(xp/c);
yp=(QCOORD)(yp/c);
return *this;
}
inline QPoint operator/( const QPoint &p, int c )
{
#if defined(CHECK_MATH)
if ( c == 0 )
QPoint::warningDivByZero();
#endif
return QPoint(p.xp/c, p.yp/c);
}
inline QPoint operator/( const QPoint &p, double c )
{
#if defined(CHECK_MATH)
if ( c == 0.0 )
QPoint::warningDivByZero();
#endif
return QPoint((QCOORD)(p.xp/c), (QCOORD)(p.yp/c));
}
#endif // no-debug inline functions
#endif // QPOINT_H
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