workspace/ksplash/ksplashx/qpoint.h

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  10 **
  11 ** The original Qt license header follows:
  12 **
  13 **
  14 ** Definition of QPoint class
  15 **
  16 ** Created : 931028
  17 **
  18 ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
  19 **
  20 ** This file is part of the kernel module of the Qt GUI Toolkit.
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  24 ** LICENSE.QPL included in the packaging of this file.
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  47
  48 #ifndef QPOINT_H
  49 #define QPOINT_H
  50
  51 #ifndef QT_H
  52 #include "qwindowdefs.h"
  53 #endif // QT_H
  54
  55
  56 class Q_EXPORT QPoint
  57 {
  58 public:
  59     QPoint();
  60     QPoint( int xpos, int ypos );
  61
  62     bool   isNull()     const;
  63
  64     int    x()          const;
  65     int    y()          const;
  66     void   setX( int x );
  67     void   setY( int y );
  68
  69     int manhattanLength() const;
  70
  71     QCOORD &rx();
  72     QCOORD &ry();
  73
  74     QPoint &operator+=( const QPoint &p );
  75     QPoint &operator-=( const QPoint &p );
  76     QPoint &operator*=( int c );
  77     QPoint &operator*=( double c );
  78     QPoint &operator/=( int c );
  79     QPoint &operator/=( double c );
  80
  81     friend inline bool   operator==( const QPoint &, const QPoint & );
  82     friend inline bool   operator!=( const QPoint &, const QPoint & );
  83     friend inline const QPoint operator+( const QPoint &, const QPoint & );
  84     friend inline const QPoint operator-( const QPoint &, const QPoint & );
  85     friend inline const QPoint operator*( const QPoint &, int );
  86     friend inline const QPoint operator*( int, const QPoint & );
  87     friend inline const QPoint operator*( const QPoint &, double );
  88     friend inline const QPoint operator*( double, const QPoint & );
  89     friend inline const QPoint operator-( const QPoint & );
  90     friend inline const QPoint operator/( const QPoint &, int );
  91     friend inline const QPoint operator/( const QPoint &, double );
  92
  93 private:
  94     static void warningDivByZero();
  95
  96 #if defined(Q_OS_MAC)
  97     QCOORD yp;
  98     QCOORD xp;
  99 #else
 100     QCOORD xp;
 101     QCOORD yp;
 102 #endif
 103 };
 104
 105
 106 /*****************************************************************************
 107   QPoint stream functions
 108  *****************************************************************************/
 109 #ifndef QT_NO_DATASTREAM
 110 Q_EXPORT QDataStream &operator<<( QDataStream &, const QPoint & );
 111 Q_EXPORT QDataStream &operator>>( QDataStream &, QPoint & );
 112 #endif
 113
 114 /*****************************************************************************
 115   QPoint inline functions
 116  *****************************************************************************/
 117
 118 inline QPoint::QPoint()
 119 { xp=0; yp=0; }
 120
 121 inline QPoint::QPoint( int xpos, int ypos )
 122 { xp=(QCOORD)xpos; yp=(QCOORD)ypos; }
 123
 124 inline bool QPoint::isNull() const
 125 { return xp == 0 && yp == 0; }
 126
 127 inline int QPoint::x() const
 128 { return xp; }
 129
 130 inline int QPoint::y() const
 131 { return yp; }
 132
 133 inline void QPoint::setX( int x )
 134 { xp = (QCOORD)x; }
 135
 136 inline void QPoint::setY( int y )
 137 { yp = (QCOORD)y; }
 138
 139 inline QCOORD &QPoint::rx()
 140 { return xp; }
 141
 142 inline QCOORD &QPoint::ry()
 143 { return yp; }
 144
 145 inline QPoint &QPoint::operator+=( const QPoint &p )
 146 { xp+=p.xp; yp+=p.yp; return *this; }
 147
 148 inline QPoint &QPoint::operator-=( const QPoint &p )
 149 { xp-=p.xp; yp-=p.yp; return *this; }
 150
 151 inline QPoint &QPoint::operator*=( int c )
 152 { xp*=(QCOORD)c; yp*=(QCOORD)c; return *this; }
 153
 154 inline QPoint &QPoint::operator*=( double c )
 155 { xp=(QCOORD)(xp*c); yp=(QCOORD)(yp*c); return *this; }
 156
 157 inline bool operator==( const QPoint &p1, const QPoint &p2 )
 158 { return p1.xp == p2.xp && p1.yp == p2.yp; }
 159
 160 inline bool operator!=( const QPoint &p1, const QPoint &p2 )
 161 { return p1.xp != p2.xp || p1.yp != p2.yp; }
 162
 163 inline const QPoint operator+( const QPoint &p1, const QPoint &p2 )
 164 { return QPoint(p1.xp+p2.xp, p1.yp+p2.yp); }
 165
 166 inline const QPoint operator-( const QPoint &p1, const QPoint &p2 )
 167 { return QPoint(p1.xp-p2.xp, p1.yp-p2.yp); }
 168
 169 inline const QPoint operator*( const QPoint &p, int c )
 170 { return QPoint(p.xp*c, p.yp*c); }
 171
 172 inline const QPoint operator*( int c, const QPoint &p )
 173 { return QPoint(p.xp*c, p.yp*c); }
 174
 175 inline const QPoint operator*( const QPoint &p, double c )
 176 { return QPoint((QCOORD)(p.xp*c), (QCOORD)(p.yp*c)); }
 177
 178 inline const QPoint operator*( double c, const QPoint &p )
 179 { return QPoint((QCOORD)(p.xp*c), (QCOORD)(p.yp*c)); }
 180
 181 inline const QPoint operator-( const QPoint &p )
 182 { return QPoint(-p.xp, -p.yp); }
 183
 184 inline QPoint &QPoint::operator/=( int c )
 185 {
 186 #if defined(QT_CHECK_MATH)
 187     if ( c == 0 )
 188         warningDivByZero();
 189 #endif
 190     xp/=(QCOORD)c;
 191     yp/=(QCOORD)c;
 192     return *this;
 193 }
 194
 195 inline QPoint &QPoint::operator/=( double c )
 196 {
 197 #if defined(QT_CHECK_MATH)
 198     if ( c == 0.0 )
 199         warningDivByZero();
 200 #endif
 201     xp=(QCOORD)(xp/c);
 202     yp=(QCOORD)(yp/c);
 203     return *this;
 204 }
 205
 206 inline const QPoint operator/( const QPoint &p, int c )
 207 {
 208 #if defined(QT_CHECK_MATH)
 209     if ( c == 0 )
 210         QPoint::warningDivByZero();
 211 #endif
 212     return QPoint(p.xp/c, p.yp/c);
 213 }
 214
 215 inline const QPoint operator/( const QPoint &p, double c )
 216 {
 217 #if defined(QT_CHECK_MATH)
 218     if ( c == 0.0 )
 219         QPoint::warningDivByZero();
 220 #endif
 221     return QPoint((QCOORD)(p.xp/c), (QCOORD)(p.yp/c));
 222 }
 223
 224 #define Q_DEFINED_QPOINT
 225 #include "qwinexport.h"
 226 #endif // QPOINT_H