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425 lines
9.7 KiB
425 lines
9.7 KiB
/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QLINE_H
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#define QLINE_H
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#include <QtCore/qpoint.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Core)
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/*******************************************************************************
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* class QLine
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*******************************************************************************/
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class Q_CORE_EXPORT QLine
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{
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public:
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inline QLine();
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inline QLine(const QPoint &pt1, const QPoint &pt2);
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inline QLine(int x1, int y1, int x2, int y2);
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inline bool isNull() const;
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inline QPoint p1() const;
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inline QPoint p2() const;
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inline int x1() const;
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inline int y1() const;
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inline int x2() const;
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inline int y2() const;
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inline int dx() const;
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inline int dy() const;
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inline void translate(const QPoint &p);
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inline void translate(int dx, int dy);
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inline QLine translated(const QPoint &p) const;
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inline QLine translated(int dx, int dy) const;
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inline void setP1(const QPoint &p1);
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inline void setP2(const QPoint &p2);
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inline void setPoints(const QPoint &p1, const QPoint &p2);
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inline void setLine(int x1, int y1, int x2, int y2);
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inline bool operator==(const QLine &d) const;
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inline bool operator!=(const QLine &d) const { return !(*this == d); }
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private:
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QPoint pt1, pt2;
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};
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Q_DECLARE_TYPEINFO(QLine, Q_MOVABLE_TYPE);
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/*******************************************************************************
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* class QLine inline members
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*******************************************************************************/
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inline QLine::QLine() { }
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inline QLine::QLine(const QPoint &pt1_, const QPoint &pt2_) : pt1(pt1_), pt2(pt2_) { }
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inline QLine::QLine(int x1pos, int y1pos, int x2pos, int y2pos) : pt1(QPoint(x1pos, y1pos)), pt2(QPoint(x2pos, y2pos)) { }
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inline bool QLine::isNull() const
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{
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return pt1 == pt2;
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}
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inline int QLine::x1() const
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{
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return pt1.x();
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}
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inline int QLine::y1() const
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{
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return pt1.y();
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}
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inline int QLine::x2() const
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{
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return pt2.x();
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}
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inline int QLine::y2() const
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{
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return pt2.y();
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}
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inline QPoint QLine::p1() const
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{
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return pt1;
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}
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inline QPoint QLine::p2() const
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{
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return pt2;
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}
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inline int QLine::dx() const
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{
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return pt2.x() - pt1.x();
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}
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inline int QLine::dy() const
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{
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return pt2.y() - pt1.y();
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}
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inline void QLine::translate(const QPoint &point)
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{
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pt1 += point;
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pt2 += point;
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}
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inline void QLine::translate(int adx, int ady)
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{
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this->translate(QPoint(adx, ady));
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}
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inline QLine QLine::translated(const QPoint &p) const
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{
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return QLine(pt1 + p, pt2 + p);
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}
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inline QLine QLine::translated(int adx, int ady) const
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{
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return translated(QPoint(adx, ady));
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}
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inline void QLine::setP1(const QPoint &aP1)
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{
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pt1 = aP1;
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}
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inline void QLine::setP2(const QPoint &aP2)
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{
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pt2 = aP2;
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}
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inline void QLine::setPoints(const QPoint &aP1, const QPoint &aP2)
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{
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pt1 = aP1;
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pt2 = aP2;
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}
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inline void QLine::setLine(int aX1, int aY1, int aX2, int aY2)
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{
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pt1 = QPoint(aX1, aY1);
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pt2 = QPoint(aX2, aY2);
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}
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inline bool QLine::operator==(const QLine &d) const
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{
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return pt1 == d.pt1 && pt2 == d.pt2;
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}
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#ifndef QT_NO_DEBUG_STREAM
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Q_CORE_EXPORT QDebug operator<<(QDebug d, const QLine &p);
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#endif
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#ifndef QT_NO_DATASTREAM
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Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QLine &);
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Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QLine &);
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#endif
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/*******************************************************************************
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* class QLineF
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*******************************************************************************/
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class Q_CORE_EXPORT QLineF {
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public:
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enum IntersectType { NoIntersection, BoundedIntersection, UnboundedIntersection };
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inline QLineF();
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inline QLineF(const QPointF &pt1, const QPointF &pt2);
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inline QLineF(qreal x1, qreal y1, qreal x2, qreal y2);
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inline QLineF(const QLine &line) : pt1(line.p1()), pt2(line.p2()) { }
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static QLineF fromPolar(qreal length, qreal angle);
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bool isNull() const;
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inline QPointF p1() const;
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inline QPointF p2() const;
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inline qreal x1() const;
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inline qreal y1() const;
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inline qreal x2() const;
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inline qreal y2() const;
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inline qreal dx() const;
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inline qreal dy() const;
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qreal length() const;
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void setLength(qreal len);
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qreal angle() const;
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void setAngle(qreal angle);
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qreal angleTo(const QLineF &l) const;
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QLineF unitVector() const;
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QLineF normalVector() const;
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// ### Qt 5: rename intersects() or intersection() and rename IntersectType IntersectionType
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IntersectType intersect(const QLineF &l, QPointF *intersectionPoint) const;
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qreal angle(const QLineF &l) const;
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QPointF pointAt(qreal t) const;
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inline void translate(const QPointF &p);
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inline void translate(qreal dx, qreal dy);
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inline QLineF translated(const QPointF &p) const;
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inline QLineF translated(qreal dx, qreal dy) const;
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inline void setP1(const QPointF &p1);
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inline void setP2(const QPointF &p2);
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inline void setPoints(const QPointF &p1, const QPointF &p2);
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inline void setLine(qreal x1, qreal y1, qreal x2, qreal y2);
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inline bool operator==(const QLineF &d) const;
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inline bool operator!=(const QLineF &d) const { return !(*this == d); }
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QLine toLine() const;
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private:
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QPointF pt1, pt2;
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};
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Q_DECLARE_TYPEINFO(QLineF, Q_MOVABLE_TYPE);
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/*******************************************************************************
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* class QLineF inline members
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*******************************************************************************/
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inline QLineF::QLineF()
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{
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}
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inline QLineF::QLineF(const QPointF &apt1, const QPointF &apt2)
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: pt1(apt1), pt2(apt2)
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{
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}
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inline QLineF::QLineF(qreal x1pos, qreal y1pos, qreal x2pos, qreal y2pos)
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: pt1(x1pos, y1pos), pt2(x2pos, y2pos)
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{
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}
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inline qreal QLineF::x1() const
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{
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return pt1.x();
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}
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inline qreal QLineF::y1() const
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{
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return pt1.y();
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}
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inline qreal QLineF::x2() const
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{
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return pt2.x();
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}
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inline qreal QLineF::y2() const
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{
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return pt2.y();
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}
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inline QPointF QLineF::p1() const
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{
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return pt1;
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}
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inline QPointF QLineF::p2() const
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{
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return pt2;
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}
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inline qreal QLineF::dx() const
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{
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return pt2.x() - pt1.x();
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}
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inline qreal QLineF::dy() const
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{
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return pt2.y() - pt1.y();
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}
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inline QLineF QLineF::normalVector() const
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{
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return QLineF(p1(), p1() + QPointF(dy(), -dx()));
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}
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inline void QLineF::translate(const QPointF &point)
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{
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pt1 += point;
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pt2 += point;
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}
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inline void QLineF::translate(qreal adx, qreal ady)
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{
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this->translate(QPointF(adx, ady));
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}
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inline QLineF QLineF::translated(const QPointF &p) const
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{
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return QLineF(pt1 + p, pt2 + p);
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}
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inline QLineF QLineF::translated(qreal adx, qreal ady) const
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{
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return translated(QPointF(adx, ady));
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}
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inline void QLineF::setLength(qreal len)
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{
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if (isNull())
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return;
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QLineF v = unitVector();
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pt2 = QPointF(pt1.x() + v.dx() * len, pt1.y() + v.dy() * len);
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}
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inline QPointF QLineF::pointAt(qreal t) const
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{
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qreal vx = pt2.x() - pt1.x();
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qreal vy = pt2.y() - pt1.y();
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return QPointF(pt1.x() + vx * t, pt1.y() + vy * t);
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}
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inline QLine QLineF::toLine() const
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{
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return QLine(pt1.toPoint(), pt2.toPoint());
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}
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inline void QLineF::setP1(const QPointF &aP1)
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{
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pt1 = aP1;
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}
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inline void QLineF::setP2(const QPointF &aP2)
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{
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pt2 = aP2;
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}
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inline void QLineF::setPoints(const QPointF &aP1, const QPointF &aP2)
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{
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pt1 = aP1;
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pt2 = aP2;
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}
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inline void QLineF::setLine(qreal aX1, qreal aY1, qreal aX2, qreal aY2)
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{
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pt1 = QPointF(aX1, aY1);
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pt2 = QPointF(aX2, aY2);
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}
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inline bool QLineF::operator==(const QLineF &d) const
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{
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return pt1 == d.pt1 && pt2 == d.pt2;
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}
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#ifndef QT_NO_DEBUG_STREAM
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Q_CORE_EXPORT QDebug operator<<(QDebug d, const QLineF &p);
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#endif
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#ifndef QT_NO_DATASTREAM
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Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QLineF &);
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Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QLineF &);
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#endif
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QLINE_H
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