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**
** Copyright (C) 2015 The Qt Company Ltd.
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** $QT_BEGIN_LICENSE:LGPL21$
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****************************************************************************/

#ifndef QPOLYGON_H
#define QPOLYGON_H

#include <QtCore/qvector.h>
#include <QtCore/qpoint.h>
#include <QtCore/qrect.h>

QT_BEGIN_NAMESPACE


class QMatrix;
class QTransform;
class QRect;
class QVariant;

class Q_GUI_EXPORT QPolygon : public QVector<QPoint>
{
public:
    inline QPolygon() {}
    inline ~QPolygon() {}
    inline explicit QPolygon(int size);
    inline /*implicit*/ QPolygon(const QVector<QPoint> &v) : QVector<QPoint>(v) {}
#ifdef Q_COMPILER_RVALUE_REFS
    /*implicit*/ QPolygon(QVector<QPoint> &&v) Q_DECL_NOTHROW : QVector<QPoint>(std::move(v)) {}
#endif
    QPolygon(const QRect &r, bool closed=false);
    QPolygon(int nPoints, const int *points);
    QPolygon(const QPolygon &other) : QVector<QPoint>(other) {}
#ifdef Q_COMPILER_RVALUE_REFS
    QPolygon(QPolygon &&other) Q_DECL_NOTHROW : QVector<QPoint>(std::move(other)) {}
    QPolygon &operator=(QPolygon &&other) Q_DECL_NOTHROW { swap(other); return *this; }
#endif
    QPolygon &operator=(const QPolygon &other) { QVector<QPoint>::operator=(other); return *this; }
    void swap(QPolygon &other) Q_DECL_NOTHROW { QVector<QPoint>::swap(other); } // prevent QVector<QPoint><->QPolygon swaps

    operator QVariant() const;

    void translate(int dx, int dy);
    void translate(const QPoint &offset);

    QPolygon translated(int dx, int dy) const Q_REQUIRED_RESULT;
    inline QPolygon translated(const QPoint &offset) const Q_REQUIRED_RESULT;

    QRect boundingRect() const;

    void point(int i, int *x, int *y) const;
    QPoint point(int i) const;
    void setPoint(int index, int x, int y);
    void setPoint(int index, const QPoint &p);
    void setPoints(int nPoints, const int *points);
    void setPoints(int nPoints, int firstx, int firsty, ...);
    void putPoints(int index, int nPoints, const int *points);
    void putPoints(int index, int nPoints, int firstx, int firsty, ...);
    void putPoints(int index, int nPoints, const QPolygon & from, int fromIndex=0);

    bool containsPoint(const QPoint &pt, Qt::FillRule fillRule) const;

    QPolygon united(const QPolygon &r) const Q_REQUIRED_RESULT;
    QPolygon intersected(const QPolygon &r) const Q_REQUIRED_RESULT;
    QPolygon subtracted(const QPolygon &r) const Q_REQUIRED_RESULT;
};

inline QPolygon::QPolygon(int asize) : QVector<QPoint>(asize) {}

#ifndef QT_NO_DEBUG_STREAM
Q_GUI_EXPORT QDebug operator<<(QDebug, const QPolygon &);
#endif

/*****************************************************************************
  QPolygon stream functions
 *****************************************************************************/
#ifndef QT_NO_DATASTREAM
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &stream, const QPolygon &polygon);
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &stream, QPolygon &polygon);
#endif

/*****************************************************************************
  Misc. QPolygon functions
 *****************************************************************************/

inline void QPolygon::setPoint(int index, const QPoint &pt)
{ (*this)[index] = pt; }

inline void QPolygon::setPoint(int index, int x, int y)
{ (*this)[index] = QPoint(x, y); }

inline QPoint QPolygon::point(int index) const
{ return at(index); }

inline void QPolygon::translate(const QPoint &offset)
{ translate(offset.x(), offset.y()); }

inline QPolygon QPolygon::translated(const QPoint &offset) const
{ return translated(offset.x(), offset.y()); }

class QRectF;

class Q_GUI_EXPORT QPolygonF : public QVector<QPointF>
{
public:
    inline QPolygonF() {}
    inline ~QPolygonF() {}
    inline explicit QPolygonF(int size);
    inline /*implicit*/ QPolygonF(const QVector<QPointF> &v) : QVector<QPointF>(v) {}
#ifdef Q_COMPILER_RVALUE_REFS
    /* implicit */ QPolygonF(QVector<QPointF> &&v) Q_DECL_NOTHROW : QVector<QPointF>(std::move(v)) {}
#endif
    QPolygonF(const QRectF &r);
    /*implicit*/ QPolygonF(const QPolygon &a);
    inline QPolygonF(const QPolygonF &a) : QVector<QPointF>(a) {}
#ifdef Q_COMPILER_RVALUE_REFS
    QPolygonF(QPolygonF &&other) Q_DECL_NOTHROW : QVector<QPointF>(std::move(other)) {}
    QPolygonF &operator=(QPolygonF &&other) Q_DECL_NOTHROW { swap(other); return *this; }
#endif
    QPolygonF &operator=(const QPolygonF &other) { QVector<QPointF>::operator=(other); return *this; }
    inline void swap(QPolygonF &other) { QVector<QPointF>::swap(other); } // prevent QVector<QPointF><->QPolygonF swaps

    operator QVariant() const;

    inline void translate(qreal dx, qreal dy);
    void translate(const QPointF &offset);

    inline QPolygonF translated(qreal dx, qreal dy) const;
    QPolygonF translated(const QPointF &offset) const Q_REQUIRED_RESULT;

    QPolygon toPolygon() const;

    bool isClosed() const { return !isEmpty() && first() == last(); }

    QRectF boundingRect() const;

    bool containsPoint(const QPointF &pt, Qt::FillRule fillRule) const;

    QPolygonF united(const QPolygonF &r) const Q_REQUIRED_RESULT;
    QPolygonF intersected(const QPolygonF &r) const Q_REQUIRED_RESULT;
    QPolygonF subtracted(const QPolygonF &r) const Q_REQUIRED_RESULT;
};

inline QPolygonF::QPolygonF(int asize) : QVector<QPointF>(asize) {}

#ifndef QT_NO_DEBUG_STREAM
Q_GUI_EXPORT QDebug operator<<(QDebug, const QPolygonF &);
#endif

/*****************************************************************************
  QPolygonF stream functions
 *****************************************************************************/
#ifndef QT_NO_DATASTREAM
Q_GUI_EXPORT QDataStream &operator<<(QDataStream &stream, const QPolygonF &array);
Q_GUI_EXPORT QDataStream &operator>>(QDataStream &stream, QPolygonF &array);
#endif

inline void QPolygonF::translate(qreal dx, qreal dy)
{ translate(QPointF(dx, dy)); }

inline QPolygonF QPolygonF::translated(qreal dx, qreal dy) const
{ return translated(QPointF(dx, dy)); }

QT_END_NAMESPACE

#endif // QPOLYGON_H
