/*

 * Copyright (C) 2003, 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 IntRect_h

#define IntRect_h

#include "IntPoint.h"

#include <wtf/Platform.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(WIN)

typedef struct tagRECT RECT;

#elif PLATFORM(QT)

class QRect;

#endif

#if PLATFORM(SYMBIAN)

class TRect;

#endif

namespace WebCore {

class FloatRect;

class IntRect {

public:

    IntRect() { }

    IntRect(const IntPoint& location, const IntSize& size)

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

    IntRect(int x, int y, int width, int height)

        : m_location(IntPoint(x, y)), m_size(IntSize(width, height)) { }

    explicit IntRect(const FloatRect& rect); // don't do this implicitly since it's lossy

    IntPoint location() const { return m_location; }

    IntSize size() const { return m_size; }

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

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

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

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

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

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

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

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

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

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

    // Be careful with these functions.  The point is considered to be to the right and below.  These are not

    // substitutes for right() and bottom().

    IntPoint topLeft() const { return m_location; }

    IntPoint topRight() const { return IntPoint(right() - 1, y()); }

    IntPoint bottomLeft() const { return IntPoint(x(), bottom() - 1); }

    IntPoint bottomRight() const { return IntPoint(right() - 1, bottom() - 1); }

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

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

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

    void move(const IntSize& s) { m_location += s; } 

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

    bool intersects(const IntRect&) const;

    bool contains(const IntRect&) const;

    // This checks to see if the rect contains x,y in the traditional sense.

    // Equivalent to checking if the rect contains a 1x1 rect below and to the right of (px,py).

    bool contains(int px, int py) const

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

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

    void intersect(const IntRect&);

    void unite(const IntRect&);

    void inflateX(int dx)

    {

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

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

    }

    void inflateY(int dy)

    {

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

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

    }

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

    void scale(float s);

#if PLATFORM(WIN)

    IntRect(const RECT&);

    operator RECT() const;

#elif PLATFORM(QT)

    IntRect(const QRect&);

    operator QRect() const;

#endif

#if PLATFORM(SYMBIAN)

    IntRect(const TRect&);

    operator TRect() const;

    TRect Rect() const;

#endif

#if PLATFORM(CG)

    operator CGRect() const;

#endif

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

    operator NSRect() const;

#endif

private:

    IntPoint m_location;

    IntSize m_size;

};

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

{

    IntRect c = a;

    c.intersect(b);

    return c;

}

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

{

    IntRect c = a;

    c.unite(b);

    return c;

}

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

{

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

}

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

{

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

}

#if PLATFORM(CG)

IntRect enclosingIntRect(const CGRect&);

#endif

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

IntRect enclosingIntRect(const NSRect&);

#endif

} // namespace WebCore

#endif // IntRect_h