diff options
Diffstat (limited to 'src/corelib/tools/qline.cpp')
| -rw-r--r-- | src/corelib/tools/qline.cpp | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/src/corelib/tools/qline.cpp b/src/corelib/tools/qline.cpp index 949f63ea15..3afd23d76b 100644 --- a/src/corelib/tools/qline.cpp +++ b/src/corelib/tools/qline.cpp @@ -347,7 +347,7 @@ QDataStream &operator>>(QDataStream &stream, QLine &line) function to determine whether the QLineF represents a valid line or a null line. - The intersect() function determines the IntersectType for this + The intersects() function determines the IntersectionType for this line and a given line, while the angleTo() function returns the angle between the lines. In addition, the unitVector() function returns a line that has the same starting point as this line, but @@ -370,6 +370,11 @@ QDataStream &operator>>(QDataStream &stream, QLine &line) /*! \enum QLineF::IntersectType + \obsolete Use QLineF::IntersectionType instead +*/ + +/*! + \enum QLineF::IntersectionType Describes the intersection between two lines. @@ -657,8 +662,10 @@ QLineF QLineF::unitVector() const return f; } +#if QT_DEPRECATED_SINCE(5, 14) /*! \fn QLineF::IntersectType QLineF::intersect(const QLineF &line, QPointF *intersectionPoint) const + \obsolete Use intersects() instead Returns a value indicating whether or not \e this line intersects with the given \a line. @@ -670,6 +677,23 @@ QLineF QLineF::unitVector() const QLineF::IntersectType QLineF::intersect(const QLineF &l, QPointF *intersectionPoint) const { + return intersects(l, intersectionPoint); +} +#endif + +/*! + \fn QLineF::IntersectionType QLineF::intersects(const QLineF &line, QPointF *intersectionPoint) const + \since 5.14 + + Returns a value indicating whether or not \e this line intersects + with the given \a line. + + The actual intersection point is extracted to \a intersectionPoint + (if the pointer is valid). If the lines are parallel, the + intersection point is undefined. +*/ +QLineF::IntersectionType QLineF::intersects(const QLineF &l, QPointF *intersectionPoint) const +{ // ipmlementation is based on Graphics Gems III's "Faster Line Segment Intersection" const QPointF a = pt2 - pt1; const QPointF b = l.pt1 - l.pt2; @@ -805,6 +829,7 @@ qreal QLineF::angleTo(const QLineF &l) const return delta_normalized; } +#if QT_DEPRECATED_SINCE(5, 14) /*! \fn qreal QLineF::angle(const QLineF &line) const @@ -837,6 +862,7 @@ qreal QLineF::angle(const QLineF &l) const if (cos_line >= -1.0 && cos_line <= 1.0) rad = qAcos( cos_line ); return rad * 360 / M_2PI; } +#endif #ifndef QT_NO_DEBUG_STREAM |