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/****************************************************************************
** $Id: frect.h 23705 2020-05-05 22:44:11Z craig $
**
** Definition of FRect class
**
** Created : 931028
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/


#ifndef FRECT_H
#define FRECT_H

#include "fsize.h"

#if defined(topLeft)
#error "Macro definition of topLeft conflicts with FRect"
// don't just silently undo people's defines: #undef topLeft
#endif

class FRect // rectangle class
{
        public:
                FRect() {}
                FRect(FPoint &topleft, FPoint &bottomright);
                FRect(FPoint &topleft, FSize &size);
                FRect(qreal left, qreal top, qreal width, qreal height);

                bool isNull() const;
                bool isEmpty() const;
                bool isValid() const;
                FRect normalize() const;

                qreal left() const;
                qreal top() const;
                qreal right() const;
                qreal bottom() const;

                qreal &rLeft();
                qreal &rTop();
                qreal &rRight();
                qreal &rBottom();

                qreal x() const;
                qreal y() const;
                void setLeft(qreal pos);
                void setTop(qreal pos);
                void setRight(qreal pos);
                void setBottom(qreal pos);
                void setX(qreal x);
                void setY(qreal y);

                void setTopLeft(FPoint &p);
                void setBottomRight(FPoint &p);
                void setTopRight(FPoint &p);
                void setBottomLeft(FPoint &p);

                FPoint topLeft() const;
                FPoint bottomRight() const;
                FPoint topRight() const;
                FPoint bottomLeft() const;
                FPoint center() const;

                void rect(qreal *x, qreal *y, qreal *w, qreal *h) const;
                void coords(qreal *xp1, qreal *yp1, qreal *xp2, qreal *yp2) const;

                void moveLeft(qreal pos);
                void moveTop(qreal pos);
                void moveRight(qreal pos);
                void moveBottom(qreal pos);
                void moveTopLeft(FPoint &p);
                void moveBottomRight(FPoint &p);
                void moveTopRight(FPoint &p);
                void moveBottomLeft(FPoint &p);
                void moveCenter(FPoint &p);
                void moveBy(qreal dx, qreal dy);

                void setRect(qreal x, qreal y, qreal w, qreal h);
                void setCoords(qreal xp1, qreal yp1, qreal xp2, qreal yp);
                void addCoords(qreal xp1, qreal yp1, qreal xp2, qreal yp2);

                FSize size() const;
                qreal width() const;
                qreal height() const;
                void setWidth(qreal w);
                void setHeight(qreal h);
                void setSize(const FSize &s);

                FRect operator|(const FRect &r) const;
                FRect operator&(const FRect &r) const;
                FRect& operator|=(const FRect &r);
                FRect& operator&=(const FRect &r);

                bool contains(FPoint &p, bool proper=false) const;
                bool contains(qreal x, qreal y) const; // inline methods, _don't_ merge these
                bool contains(qreal x, qreal y, bool proper) const;
                bool contains(const FRect &r, bool proper=false) const;
                FRect unite(const FRect &r) const;
                FRect intersect(const FRect &r) const;
                bool intersects(const FRect &r) const;

                friend bool operator==(const FRect &, const FRect &);
                friend bool operator!=(const FRect &, const FRect &);

        private:
        #if defined(Q_OS_LINUX) || defined(Q_OS_TEMP)
                friend void qt_setCoords(FRect *r, qreal xp1, qreal yp1, qreal xp2, qreal yp2);
        #endif
                qreal x1 {0.0};
                qreal y1 {0.0};
                qreal x2 {-1.0};
                qreal y2 {-1.0};
};

bool operator==(const FRect &, const FRect &);
bool operator!=(const FRect &, const FRect &);


/*****************************************************************************
 FRect stream functions
 *****************************************************************************/

// #ifndef QT_NO_DATASTREAM
// Q_EXPORT QDataStream &operator<<(QDataStream &, const FRect &);
// Q_EXPORT QDataStream &operator>>(QDataStream &, FRect &);
// #endif

/*****************************************************************************
 FRect inline member functions
 *****************************************************************************/


inline FRect::FRect(qreal left, qreal top, qreal width, qreal height)
{
        x1 = (qreal)left;
        y1 = (qreal)top;
        x2 = (qreal)(left+width-1);
        y2 = (qreal)(top+height-1);
}

inline bool FRect::isNull() const
{ return x2 == x1-1 && y2 == y1-1; }

inline bool FRect::isEmpty() const
{ return x1 > x2 || y1 > y2; }

inline bool FRect::isValid() const
{ return x1 <= x2 && y1 <= y2; }

inline qreal FRect::left() const
{ return x1; }

inline qreal FRect::top() const
{ return y1; }

inline qreal FRect::right() const
{ return x2; }

inline qreal FRect::bottom() const
{ return y2; }

inline qreal &FRect::rLeft()
{ return x1; }

inline qreal & FRect::rTop()
{ return y1; }

inline qreal & FRect::rRight()
{ return x2; }

inline qreal & FRect::rBottom()
{ return y2; }

inline qreal FRect::x() const
{ return x1; }

inline qreal FRect::y() const
{ return y1; }

inline void FRect::setLeft(qreal pos)
{ x1 = (qreal)pos; }

inline void FRect::setTop(qreal pos)
{ y1 = (qreal)pos; }

inline void FRect::setRight(qreal pos)
{ x2 = (qreal)pos; }

inline void FRect::setBottom(qreal pos)
{ y2 = (qreal)pos; }

inline void FRect::setX(qreal x)
{ x1 = (qreal)x; }

inline void FRect::setY(qreal y)
{ y1 = (qreal)y; }

inline FPoint FRect::topLeft() const
{ return FPoint(x1, y1); }

inline FPoint FRect::bottomRight() const
{ return FPoint(x2, y2); }

inline FPoint FRect::topRight() const
{ return FPoint(x2, y1); }

inline FPoint FRect::bottomLeft() const
{ return FPoint(x1, y2); }

inline FPoint FRect::center() const
{ return FPoint((x1+x2)/2, (y1+y2)/2); }

inline qreal FRect::width() const
{ return x2 - x1 + 1; }

inline qreal FRect::height() const
{ return y2 - y1 + 1; }

inline FSize FRect::size() const
{ return FSize(x2-x1+1, y2-y1+1); }

inline bool FRect::contains(qreal x, qreal y, bool proper) const
{
        if (proper)
                return x > x1 && x < x2 &&
                         y > y1 && y < y2;
        else
                return x >= x1 && x <= x2 &&
                         y >= y1 && y <= y2;
}

inline bool FRect::contains(qreal x, qreal y) const
{
        return x >= x1 && x <= x2 &&
         y >= y1 && y <= y2;
}

 #endif // FRECT_H