/*

 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#ifndef IntPoint_h

#define IntPoint_h

#include "IntSize.h"

#include <wtf/Platform.h>

#if PLATFORM(CG)

typedef struct CGPoint CGPoint;

#endif

#if PLATFORM(MAC)

#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES

typedef struct CGPoint NSPoint;

#else

typedef struct _NSPoint NSPoint;

#endif

#endif

#if PLATFORM(WIN)

typedef struct tagPOINT POINT;

typedef struct tagPOINTS POINTS;

#elif PLATFORM(QT)

class QPoint;

#endif

#if PLATFORM(SYMBIAN)

class TPoint;

#endif

namespace WebCore {

class IntPoint {

public:

    IntPoint() : m_x(0), m_y(0) { }

    IntPoint(int x, int y) : m_x(x), m_y(y) { }

    int x() const { return m_x; }

    int y() const { return m_y; }

    void setX(int x) { m_x = x; }

    void setY(int y) { m_y = y; }

    void move(int dx, int dy) { m_x += dx; m_y += dy; }

#if PLATFORM(CG)

    explicit IntPoint(const CGPoint&); // don't do this implicitly since it's lossy

    operator CGPoint() const;

#endif

#if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)

    explicit IntPoint(const NSPoint&); // don't do this implicitly since it's lossy

    operator NSPoint() const;

#endif

#if PLATFORM(WIN)

    IntPoint(const POINT&);

    operator POINT() const;

    IntPoint(const POINTS&);

    operator POINTS() const;

#elif PLATFORM(QT)

    IntPoint(const QPoint&);

    operator QPoint() const;

#endif

#if PLATFORM(SYMBIAN)

    IntPoint(const TPoint&);

    operator TPoint() const;

#endif

private:

    int m_x, m_y;

};

inline IntPoint& operator+=(IntPoint& a, const IntSize& b)

{

    a.move(b.width(), b.height());

    return a;

}

inline IntPoint& operator-=(IntPoint& a, const IntSize& b)

{

    a.move(-b.width(), -b.height());

    return a;

}

inline IntPoint operator+(const IntPoint& a, const IntSize& b)

{

    return IntPoint(a.x() + b.width(), a.y() + b.height());

}

inline IntSize operator-(const IntPoint& a, const IntPoint& b)

{

    return IntSize(a.x() - b.x(), a.y() - b.y());

}

inline IntPoint operator-(const IntPoint& a, const IntSize& b)

{

    return IntPoint(a.x() - b.width(), a.y() - b.height());

}

inline bool operator==(const IntPoint& a, const IntPoint& b)

{

    return a.x() == b.x() && a.y() == b.y();

}

inline bool operator!=(const IntPoint& a, const IntPoint& b)

{

    return a.x() != b.x() || a.y() != b.y();

}

} // namespace WebCore

#endif // IntPoint_h