/*

 * Copyright (C) 2004, 2006, 2007 Apple Inc.  All rights reserved.

 * Copyright (C) 2005 Nokia.  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 FloatPoint_h

#define FloatPoint_h

#include "FloatSize.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(QT)

class QPointF;

#endif

#if PLATFORM(SYMBIAN)

class TPoint;

#endif

namespace WebCore {

class AffineTransform;

class IntPoint;

class FloatPoint {

public:

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

    FloatPoint(float x, float y) : m_x(x), m_y(y) { }

    FloatPoint(const IntPoint&);

    static FloatPoint narrowPrecision(double x, double y);

    float x() const { return m_x; }

    float y() const { return m_y; }

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

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

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

#if PLATFORM(CG)

    FloatPoint(const CGPoint&);

    operator CGPoint() const;

#endif

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

    FloatPoint(const NSPoint&);

    operator NSPoint() const;

#endif

#if PLATFORM(QT)

    FloatPoint(const QPointF&);

    operator QPointF() const;

#endif

#if PLATFORM(SYMBIAN)

    operator TPoint() const;

    FloatPoint(const TPoint& );

#endif

    FloatPoint matrixTransform(const AffineTransform&) const;

private:

    float m_x, m_y;

};

inline FloatPoint& operator+=(FloatPoint& a, const FloatSize& b)

{

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

    return a;

}

inline FloatPoint& operator-=(FloatPoint& a, const FloatSize& b)

{

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

    return a;

}

inline FloatPoint operator+(const FloatPoint& a, const FloatSize& b)

{

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

}

inline FloatSize operator-(const FloatPoint& a, const FloatPoint& b)

{

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

}

inline FloatPoint operator-(const FloatPoint& a, const FloatSize& b)

{

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

}

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

{

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

}

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

{

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

}

}

#endif