/*

 * Copyright (C) 2003, 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 FloatRect_h

#define FloatRect_h

#include "FloatPoint.h"

#if PLATFORM(CG)

typedef struct CGRect CGRect;

#endif

#if PLATFORM(MAC)

#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES

typedef struct CGRect NSRect;

#else

typedef struct _NSRect NSRect;

#endif

#endif

#if PLATFORM(QT)

class QRectF;

#endif

namespace WebCore {

class IntRect;

class FloatRect {

public:

    FloatRect() { }

    FloatRect(const FloatPoint& location, const FloatSize& size)

        : m_location(location), m_size(size) { }

    FloatRect(float x, float y, float width, float height)

        : m_location(FloatPoint(x, y)), m_size(FloatSize(width, height)) { }

    FloatRect(const IntRect&);

    static FloatRect narrowPrecision(double x, double y, double width, double height);

    FloatPoint location() const { return m_location; }

    FloatSize size() const { return m_size; }

    void setLocation(const FloatPoint& location) { m_location = location; }

    void setSize(const FloatSize& size) { m_size = size; }

    float x() const { return m_location.x(); }

    float y() const { return m_location.y(); }

    float width() const { return m_size.width(); }

    float height() const { return m_size.height(); }

    void setX(float x) { m_location.setX(x); }

    void setY(float y) { m_location.setY(y); }

    void setWidth(float width) { m_size.setWidth(width); }

    void setHeight(float height) { m_size.setHeight(height); }

    bool isEmpty() const { return m_size.isEmpty(); }

    float right() const { return x() + width(); }

    float bottom() const { return y() + height(); }

    void move(const FloatSize& delta) { m_location += delta; } 

    void move(float dx, float dy) { m_location.move(dx, dy); } 

    bool intersects(const FloatRect&) const;

    bool contains(const FloatRect&) const;

    void intersect(const FloatRect&);

    void unite(const FloatRect&);

    // Note, this doesn't match what IntRect::contains(IntPoint&) does; the int version

    // is really checking for containment of 1x1 rect, but that doesn't make sense with floats.

    bool contains(float px, float py) const

        { return px >= x() && px <= right() && py >= y() && py <= bottom(); }

    bool contains(const FloatPoint& point) const { return contains(point.x(), point.y()); }

    void inflateX(float dx) {

        m_location.setX(m_location.x() - dx);

        m_size.setWidth(m_size.width() + dx + dx);

    }

    void inflateY(float dy) {

        m_location.setY(m_location.y() - dy);

        m_size.setHeight(m_size.height() + dy + dy);

    }

    void inflate(float d) { inflateX(d); inflateY(d); }

    void scale(float s);

#if PLATFORM(CG)

    FloatRect(const CGRect&);

    operator CGRect() const;

#endif

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

    FloatRect(const NSRect&);

    operator NSRect() const;

#endif

#if PLATFORM(QT)

    FloatRect(const QRectF&);

    operator QRectF() const;

#endif

#if PLATFORM(SYMBIAN)

    FloatRect(const TRect&);

    operator TRect() const;

    TRect rect() const;

#endif

private:

    FloatPoint m_location;

    FloatSize m_size;

};

inline FloatRect intersection(const FloatRect& a, const FloatRect& b)

{

    FloatRect c = a;

    c.intersect(b);

    return c;

}

inline FloatRect unionRect(const FloatRect& a, const FloatRect& b)

{

    FloatRect c = a;

    c.unite(b);

    return c;

}

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

{

    return a.location() == b.location() && a.size() == b.size();

}

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

{

    return a.location() != b.location() || a.size() != b.size();

}

IntRect enclosingIntRect(const FloatRect&);

}

#endif