edge at the given \a y coordinate. The rectangle's size is    unchanged.    \sa bottom(), setBottom(), moveTop()*//*!    \fn void QRectF::moveTopLeft(const QPointF &position)    Moves the rectangle, leaving the top-left corner at the given \a    position. The rectangle's size is unchanged.    \sa setTopLeft(), moveTop(), moveLeft()*//*!    \fn void QRectF::moveBottomRight(const QPointF &position)    Moves the rectangle, leaving the bottom-right corner at the given    \a position. The rectangle's size is unchanged.    \sa setBottomRight(), moveBottom(), moveRight()*//*!    \fn void QRectF::moveTopRight(const QPointF &position)    Moves the rectangle, leaving the top-right corner at the given    \a position. The rectangle's size is unchanged.    \sa setTopRight(), moveTop(), moveRight()*//*!    \fn void QRectF::moveBottomLeft(const QPointF &position)    Moves the rectangle, leaving the bottom-left corner at the given    \a position. The rectangle's size is unchanged.    \sa setBottomLeft(), moveBottom(), moveLeft()*//*!    \fn void QRectF::moveTo(qreal x, qreal y)    Moves the rectangle, leaving the top-left corner at the given    position (\a x, \a y). The rectangle's size is unchanged.    \sa translate(), moveTopLeft()*//*!    \fn void QRectF::moveTo(const QPointF &position)    \overload    Moves the rectangle, leaving the top-left corner at the given \a    position.*//*!    \fn void QRectF::translate(qreal dx, qreal dy)    Moves the rectangle \a dx along the x-axis and \a dy along the y-axis,    relative to the current position. Positive values move the rectangle to the    right and downwards.    \sa moveTopLeft(),  moveTo(),  translated()*//*!    \fn void QRectF::translate(const QPointF &offset)    \overload    Moves the rectangle \a{offset}.\l{QPointF::x()}{x()} along the x    axis and \a{offset}.\l{QPointF::y()}{y()} along the y axis,    relative to the current position.*//*!    \fn QRectF QRectF::translated(qreal dx, qreal dy) const    Returns a copy of the rectangle that is translated \a dx along the    x axis and \a dy along the y axis, relative to the current    position. Positive values move the rectangle to the right and    down.    \sa translate()*//*!    \fn QRectF QRectF::translated(const QPointF &offset) const    \overload    Returns a copy of the rectangle that is translated    \a{offset}.\l{QPointF::x()}{x()} along the x axis and    \a{offset}.\l{QPointF::y()}{y()} along the y axis, relative to the    current position.*//*!    \fn void QRectF::setRect(qreal x, qreal y, qreal width, qreal height)    Sets the coordinates of the rectangle's top-left corner to (\a x,    \a y), and its size to the given \a width and \a height.    \sa getRect(), setCoords()*//*!    \fn void QRectF::setCoords(qreal x1, qreal y1, qreal x2, qreal y2)    Sets the coordinates of the rectangle's top-left corner to (\a x1,    \a y1), and the coordinates of its bottom-right corner to (\a x2,    \a y2).    \sa getCoords() setRect()*//*!    \fn QRectF QRectF::adjusted(qreal dx1, qreal dy1, qreal dx2, qreal dy2) const    Returns a new rectangle with \a dx1, \a dy1, \a dx2 and \a dy2    added respectively to the existing coordinates of this rectangle.    \sa adjust()*//*! \fn void QRectF::adjust(qreal dx1, qreal dy1, qreal dx2, qreal dy2)    Adds \a dx1, \a dy1, \a dx2 and \a dy2 respectively to the    existing coordinates of the rectangle.    \sa adjusted(), setRect()*//*!    \fn QSizeF QRectF::size() const    Returns the size of the rectangle.    \sa setSize(), width(), height()*//*!    \fn qreal QRectF::width() const    Returns the width of the rectangle.    \sa setWidth(), height(), size()*//*!    \fn qreal QRectF::height() const    Returns the height of the rectangle.    \sa setHeight(), width(), size()*//*!    \fn void QRectF::setWidth(qreal width)    Sets the width of the rectangle to the given \a width. The right    edge is changed, but not the left one.    \sa width(), setSize()*//*!    \fn void QRectF::setHeight(qreal height)    Sets the height of the rectangle to the given \a height. The bottom    edge is changed, but not the top one.    \sa height(), setSize()*//*!    \fn void QRectF::setSize(const QSizeF &size)    Sets the size of the rectangle to the given \a size. The top-left    corner is not moved.    \sa size(), setWidth(), setHeight()*//*!    \fn bool QRectF::contains(const QPointF &point) const    Returns true if the given \a point is inside or on the edge of the    rectangle; otherwise returns false.    \sa intersects()*/bool QRectF::contains(const QPointF &p) const{    if (isNull())        return false;    QRectF r = normalized();    return p.x() >= r.xp && p.x() <= r.xp + r.w &&           p.y() >= r.yp && p.y() <= r.yp + r.h;}/*!    \fn bool QRectF::contains(qreal x, qreal y) const    \overload    Returns true if the point (\a x, \a y) is inside or on the edge of    the rectangle; otherwise returns false.*//*!    \fn bool QRectF::contains(const QRectF &rectangle) const    \overload    Returns true if the given \a rectangle is inside this rectangle;    otherwise returns false.*/bool QRectF::contains(const QRectF &r) const{    if (isNull() || r.isNull())        return false;    QRectF r1 = normalized();    QRectF r2 = r.normalized();    return r2.xp >= r1.xp && r2.xp + r2.w <= r1.xp + r1.w        && r2.yp >= r1.yp && r2.yp + r2.h <= r1.yp + r1.h;}/*!    \fn qreal QRectF::left() const    Returns the x-coordinate of the rectangle's left edge. Equivalent    to x().    \sa setLeft(), topLeft(), bottomLeft()*//*!    \fn qreal QRectF::top() const    Returns the y-coordinate of the rectangle's top edge. Equivalent    to y().    \sa setTop(), topLeft(), topRight()*//*!    \fn qreal QRectF::right() const    Returns the x-coordinate of the rectangle's right edge.    \sa setRight(), topRight(), bottomRight()*//*!    \fn qreal QRectF::bottom() const    Returns the y-coordinate of the rectangle's bottom edge.    \sa setBottom(), bottomLeft(), bottomRight()*//*!    \fn QPointF QRectF::topLeft() const    Returns the position of the rectangle's top-left corner.    \sa setTopLeft(), top(), left()*//*!    \fn QPointF QRectF::bottomRight() const    Returns the position of the rectangle's  bottom-right corner.    \sa setBottomRight(), bottom(), right()*//*!    \fn QPointF QRectF::topRight() const    Returns the position of the rectangle's top-right corner.    \sa setTopRight(), top(), right()*//*!    \fn QPointF QRectF::bottomLeft() const    Returns the position of the rectangle's  bottom-left corner.    \sa setBottomLeft(),  bottom(), left()*//*!    \fn QRectF& QRectF::operator|=(const QRectF &rectangle)    Unites this rectangle with the given \a rectangle.    \sa united(), operator|()*//*!    \fn QRectF& QRectF::operator&=(const QRectF &rectangle)    Intersects this rectangle with the given \a rectangle.    \sa intersected(), operator|=()*//*!    \fn QRectF QRectF::operator|(const QRectF &rectangle) const    Returns the bounding rectangle of this rectangle and the given \a rectangle.    \sa united(), operator|=()*/QRectF QRectF::operator|(const QRectF &r) const{    if (isNull())        return r;    if (r.isNull())        return *this;    QRectF r1 = normalized();    QRectF r2 = r.normalized();    QRectF tmp;    tmp.xp = qMin(r1.xp, r2.xp);    tmp.yp = qMin(r1.yp, r2.yp);    tmp.w = qMax(r1.xp + r1.w, r2.xp + r2.w) - tmp.xp;    tmp.h = qMax(r1.yp + r1.h, r2.yp + r2.h) - tmp.yp;    return tmp;}/*!    \fn QRectF QRectF::unite(const QRectF &rectangle) const    \obsolete    Use united(\a rectangle) instead.*//*!    \fn QRectF QRectF::united(const QRectF &rectangle) const    \since 4.2    Returns the bounding rectangle of this rectangle and the given \a    rectangle.    \image qrect-unite.png    \sa intersected()*//*!    \fn QRectF QRectF::operator &(const QRectF &rectangle) const    Returns the intersection of this rectangle and the given \a    rectangle. Returns an empty rectangle if there is no intersection.    \sa operator&=(), intersected()*/QRectF QRectF::operator&(const QRectF &r) const{    if (isNull() || r.isNull())        return QRectF();    QRectF r1 = normalized();    QRectF r2 = r.normalized();    QRectF tmp;    tmp.xp = qMax(r1.xp, r2.xp);    tmp.yp = qMax(r1.yp, r2.yp);    tmp.w = qMin(r1.xp + r1.w, r2.xp + r2.w) - tmp.xp;    tmp.h = qMin(r1.yp + r1.h, r2.yp + r2.h) - tmp.yp;    return tmp.isEmpty() ? QRectF() : tmp;}/*!    \fn QRectF QRectF::intersect(const QRectF &rectangle) const    \obsolete    Use intersected(\a rectangle) instead.*//*!    \fn QRectF QRectF::intersected(const QRectF &rectangle) const    \since 4.2    Returns the intersection of this rectangle and the given \a    rectangle. Note that \c {r.intersected(s)} is equivalent to \c    {r & s}.    \image qrect-intersect.png    \sa intersects(), united(), operator&=()*//*!    \fn bool QRectF::intersects(const QRectF &rectangle) const    Returns true if this rectangle intersects with the given \a    rectangle (i.e. there is at least one pixel that is within both    rectangles), otherwise returns false.    The intersection rectangle can be retrieved using the intersected()    function.    \sa contains()*/bool QRectF::intersects(const QRectF &r) const{    if (isNull() || r.isNull())        return false;    QRectF r1 = normalized();    QRectF r2 = r.normalized();    return qMax(r1.xp, r2.xp) <= qMin(r1.xp + r1.w, r2.xp + r2.w)        && qMax(r1.yp, r2.yp) <= qMin(r1.yp + r1.h, r2.yp + r2.h);}/*!    \fn QRect QRectF::toRect() const    Returns a QRect based on the values of this rectangle.  Note that the    coordinates in the returned rectangle are rounded to the nearest integer.    \sa QRectF()*//*!    \fn void QRectF::moveCenter(const QPointF &position)    Moves the rectangle, leaving the center point at the given \a    position. The rectangle's size is unchanged.    \sa center()*//*!    \fn bool operator==(const QRectF &r1, const QRectF &r2)    \relates QRectF    Returns true if the rectangles \a r1 and \a r2 are equal,    otherwise returns false.*//*!    \fn bool operator!=(const QRectF &r1, const QRectF &r2)    \relates QRectF    Returns true if the rectangles \a r1 and \a r2 are different, otherwise    returns false.*//*****************************************************************************  QRectF stream functions *****************************************************************************/#ifndef QT_NO_DATASTREAM/*!    \fn QDataStream &operator<<(QDataStream &stream, const QRectF &rectangle)    \relates QRectF    Writes the \a rectangle to the \a stream, and returns a reference to the    stream.    \sa \link datastreamformat.html Format of the QDataStream operators \endlink*/QDataStream &operator<<(QDataStream &s, const QRectF &r){    s << double(r.x()) << double(r.y()) << double(r.width()) << double(r.height());    return s;}/*!    \fn QDataStream &operator>>(QDataStream &stream, QRectF &rectangle)    \relates QRectF    Reads a \a rectangle from the \a stream, and returns a reference to the    stream.    \sa \link datastreamformat.html Format of the QDataStream operators \endlink*/QDataStream &operator>>(QDataStream &s, QRectF &r){    double x, y, w, h;    s >> x;    s >> y;    s >> w;    s >> h;    r.setRect(qreal(x), qreal(y), qreal(w), qreal(h));    return s;}#endif // QT_NO_DATASTREAM#ifndef QT_NO_DEBUG_STREAMQDebug operator<<(QDebug dbg, const QRectF &r) {    dbg.nospace() << "QRectF(" << r.x() << ',' << r.y() << ' '                  << r.width() << 'x' << r.height() << ')';    return dbg.space();}#endif