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**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/
#ifndef QLINE_H
#define QLINE_H
#include <QtCore/qpoint.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Core)
/*******************************************************************************
* class QLine
*******************************************************************************/
class Q_CORE_EXPORT QLine
{
public:
inline QLine();
inline QLine(const QPoint &pt1, const QPoint &pt2);
inline QLine(int x1, int y1, int x2, int y2);
inline bool isNull() const;
inline QPoint p1() const;
inline QPoint p2() const;
inline int x1() const;
inline int y1() const;
inline int x2() const;
inline int y2() const;
inline int dx() const;
inline int dy() const;
inline void translate(const QPoint &p);
inline void translate(int dx, int dy);
inline QLine translated(const QPoint &p) const;
inline QLine translated(int dx, int dy) const;
inline void setP1(const QPoint &p1);
inline void setP2(const QPoint &p2);
inline void setPoints(const QPoint &p1, const QPoint &p2);
inline void setLine(int x1, int y1, int x2, int y2);
inline bool operator==(const QLine &d) const;
inline bool operator!=(const QLine &d) const { return !(*this == d); }
private:
QPoint pt1, pt2;
};
Q_DECLARE_TYPEINFO(QLine, Q_MOVABLE_TYPE);
/*******************************************************************************
* class QLine inline members
*******************************************************************************/
inline QLine::QLine() { }
inline QLine::QLine(const QPoint &pt1_, const QPoint &pt2_) : pt1(pt1_), pt2(pt2_) { }
inline QLine::QLine(int x1pos, int y1pos, int x2pos, int y2pos) : pt1(QPoint(x1pos, y1pos)), pt2(QPoint(x2pos, y2pos)) { }
inline bool QLine::isNull() const
{
return pt1 == pt2;
}
inline int QLine::x1() const
{
return pt1.x();
}
inline int QLine::y1() const
{
return pt1.y();
}
inline int QLine::x2() const
{
return pt2.x();
}
inline int QLine::y2() const
{
return pt2.y();
}
inline QPoint QLine::p1() const
{
return pt1;
}
inline QPoint QLine::p2() const
{
return pt2;
}
inline int QLine::dx() const
{
return pt2.x() - pt1.x();
}
inline int QLine::dy() const
{
return pt2.y() - pt1.y();
}
inline void QLine::translate(const QPoint &point)
{
pt1 += point;
pt2 += point;
}
inline void QLine::translate(int adx, int ady)
{
this->translate(QPoint(adx, ady));
}
inline QLine QLine::translated(const QPoint &p) const
{
return QLine(pt1 + p, pt2 + p);
}
inline QLine QLine::translated(int adx, int ady) const
{
return translated(QPoint(adx, ady));
}
inline void QLine::setP1(const QPoint &aP1)
{
pt1 = aP1;
}
inline void QLine::setP2(const QPoint &aP2)
{
pt2 = aP2;
}
inline void QLine::setPoints(const QPoint &aP1, const QPoint &aP2)
{
pt1 = aP1;
pt2 = aP2;
}
inline void QLine::setLine(int aX1, int aY1, int aX2, int aY2)
{
pt1 = QPoint(aX1, aY1);
pt2 = QPoint(aX2, aY2);
}
inline bool QLine::operator==(const QLine &d) const
{
return pt1 == d.pt1 && pt2 == d.pt2;
}
#ifndef QT_NO_DEBUG_STREAM
Q_CORE_EXPORT QDebug operator<<(QDebug d, const QLine &p);
#endif
#ifndef QT_NO_DATASTREAM
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QLine &);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QLine &);
#endif
/*******************************************************************************
* class QLineF
*******************************************************************************/
class Q_CORE_EXPORT QLineF {
public:
enum IntersectType { NoIntersection, BoundedIntersection, UnboundedIntersection };
inline QLineF();
inline QLineF(const QPointF &pt1, const QPointF &pt2);
inline QLineF(qreal x1, qreal y1, qreal x2, qreal y2);
inline QLineF(const QLine &line) : pt1(line.p1()), pt2(line.p2()) { }
static QLineF fromPolar(qreal length, qreal angle);
bool isNull() const;
inline QPointF p1() const;
inline QPointF p2() const;
inline qreal x1() const;
inline qreal y1() const;
inline qreal x2() const;
inline qreal y2() const;
inline qreal dx() const;
inline qreal dy() const;
qreal length() const;
void setLength(qreal len);
qreal angle() const;
void setAngle(qreal angle);
qreal angleTo(const QLineF &l) const;
QLineF unitVector() const;
QLineF normalVector() const;
// ### Qt 5: rename intersects() or intersection() and rename IntersectType IntersectionType
IntersectType intersect(const QLineF &l, QPointF *intersectionPoint) const;
qreal angle(const QLineF &l) const;
QPointF pointAt(qreal t) const;
inline void translate(const QPointF &p);
inline void translate(qreal dx, qreal dy);
inline QLineF translated(const QPointF &p) const;
inline QLineF translated(qreal dx, qreal dy) const;
inline void setP1(const QPointF &p1);
inline void setP2(const QPointF &p2);
inline void setPoints(const QPointF &p1, const QPointF &p2);
inline void setLine(qreal x1, qreal y1, qreal x2, qreal y2);
inline bool operator==(const QLineF &d) const;
inline bool operator!=(const QLineF &d) const { return !(*this == d); }
QLine toLine() const;
private:
QPointF pt1, pt2;
};
Q_DECLARE_TYPEINFO(QLineF, Q_MOVABLE_TYPE);
/*******************************************************************************
* class QLineF inline members
*******************************************************************************/
inline QLineF::QLineF()
{
}
inline QLineF::QLineF(const QPointF &apt1, const QPointF &apt2)
: pt1(apt1), pt2(apt2)
{
}
inline QLineF::QLineF(qreal x1pos, qreal y1pos, qreal x2pos, qreal y2pos)
: pt1(x1pos, y1pos), pt2(x2pos, y2pos)
{
}
inline qreal QLineF::x1() const
{
return pt1.x();
}
inline qreal QLineF::y1() const
{
return pt1.y();
}
inline qreal QLineF::x2() const
{
return pt2.x();
}
inline qreal QLineF::y2() const
{
return pt2.y();
}
inline QPointF QLineF::p1() const
{
return pt1;
}
inline QPointF QLineF::p2() const
{
return pt2;
}
inline qreal QLineF::dx() const
{
return pt2.x() - pt1.x();
}
inline qreal QLineF::dy() const
{
return pt2.y() - pt1.y();
}
inline QLineF QLineF::normalVector() const
{
return QLineF(p1(), p1() + QPointF(dy(), -dx()));
}
inline void QLineF::translate(const QPointF &point)
{
pt1 += point;
pt2 += point;
}
inline void QLineF::translate(qreal adx, qreal ady)
{
this->translate(QPointF(adx, ady));
}
inline QLineF QLineF::translated(const QPointF &p) const
{
return QLineF(pt1 + p, pt2 + p);
}
inline QLineF QLineF::translated(qreal adx, qreal ady) const
{
return translated(QPointF(adx, ady));
}
inline void QLineF::setLength(qreal len)
{
if (isNull())
return;
QLineF v = unitVector();
pt2 = QPointF(pt1.x() + v.dx() * len, pt1.y() + v.dy() * len);
}
inline QPointF QLineF::pointAt(qreal t) const
{
qreal vx = pt2.x() - pt1.x();
qreal vy = pt2.y() - pt1.y();
return QPointF(pt1.x() + vx * t, pt1.y() + vy * t);
}
inline QLine QLineF::toLine() const
{
return QLine(pt1.toPoint(), pt2.toPoint());
}
inline void QLineF::setP1(const QPointF &aP1)
{
pt1 = aP1;
}
inline void QLineF::setP2(const QPointF &aP2)
{
pt2 = aP2;
}
inline void QLineF::setPoints(const QPointF &aP1, const QPointF &aP2)
{
pt1 = aP1;
pt2 = aP2;
}
inline void QLineF::setLine(qreal aX1, qreal aY1, qreal aX2, qreal aY2)
{
pt1 = QPointF(aX1, aY1);
pt2 = QPointF(aX2, aY2);
}
inline bool QLineF::operator==(const QLineF &d) const
{
return pt1 == d.pt1 && pt2 == d.pt2;
}
#ifndef QT_NO_DEBUG_STREAM
Q_CORE_EXPORT QDebug operator<<(QDebug d, const QLineF &p);
#endif
#ifndef QT_NO_DATASTREAM
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QLineF &);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QLineF &);
#endif
QT_END_NAMESPACE
QT_END_HEADER
#endif // QLINE_H
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