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/*
* Copyright (C) 2003, 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 IntSize_h
#define IntSize_h
#if USE(CG)
typedef struct CGSize CGSize;
#endif
#if PLATFORM(MAC)
#ifdef NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES
typedef struct CGSize NSSize;
#else
typedef struct _NSSize NSSize;
#endif
#endif
#if PLATFORM(WIN)
typedef struct tagSIZE SIZE;
#elif PLATFORM(QT)
#include <qglobal.h>
QT_BEGIN_NAMESPACE
class QSize;
QT_END_NAMESPACE
#elif PLATFORM(BLACKBERRY)
namespace BlackBerry {
namespace Platform {
class IntSize;
}
}
#endif
namespace WebCore {
class IntSize {
public:
IntSize() : m_width(0), m_height(0) { }
IntSize(int width, int height) : m_width(width), m_height(height) { }
int width() const { return m_width; }
int height() const { return m_height; }
void setWidth(int width) { m_width = width; }
void setHeight(int height) { m_height = height; }
bool isEmpty() const { return m_width <= 0 || m_height <= 0; }
bool isZero() const { return !m_width && !m_height; }
float aspectRatio() const { return static_cast<float>(m_width) / static_cast<float>(m_height); }
void expand(int width, int height)
{
m_width += width;
m_height += height;
}
void scale(float widthScale, float heightScale)
{
m_width = static_cast<int>(static_cast<float>(m_width) * widthScale);
m_height = static_cast<int>(static_cast<float>(m_height) * heightScale);
}
void scale(float scale)
{
this->scale(scale, scale);
}
IntSize expandedTo(const IntSize& other) const
{
return IntSize(m_width > other.m_width ? m_width : other.m_width,
m_height > other.m_height ? m_height : other.m_height);
}
IntSize shrunkTo(const IntSize& other) const
{
return IntSize(m_width < other.m_width ? m_width : other.m_width,
m_height < other.m_height ? m_height : other.m_height);
}
void clampNegativeToZero()
{
*this = expandedTo(IntSize());
}
void clampToMinimumSize(const IntSize& minimumSize)
{
if (m_width < minimumSize.width())
m_width = minimumSize.width();
if (m_height < minimumSize.height())
m_height = minimumSize.height();
}
int area() const
{
return m_width * m_height;
}
int diagonalLengthSquared() const
{
return m_width * m_width + m_height * m_height;
}
IntSize transposedSize() const
{
return IntSize(m_height, m_width);
}
#if USE(CG)
explicit IntSize(const CGSize&); // don't do this implicitly since it's lossy
operator CGSize() const;
#endif
#if PLATFORM(MAC) && !defined(NSGEOMETRY_TYPES_SAME_AS_CGGEOMETRY_TYPES)
explicit IntSize(const NSSize &); // don't do this implicitly since it's lossy
operator NSSize() const;
#endif
#if PLATFORM(WIN)
IntSize(const SIZE&);
operator SIZE() const;
#endif
#if PLATFORM(QT)
IntSize(const QSize&);
operator QSize() const;
#endif
#if PLATFORM(BLACKBERRY)
IntSize(const BlackBerry::Platform::IntSize&);
operator BlackBerry::Platform::IntSize() const;
#endif
private:
int m_width, m_height;
};
inline IntSize& operator+=(IntSize& a, const IntSize& b)
{
a.setWidth(a.width() + b.width());
a.setHeight(a.height() + b.height());
return a;
}
inline IntSize& operator-=(IntSize& a, const IntSize& b)
{
a.setWidth(a.width() - b.width());
a.setHeight(a.height() - b.height());
return a;
}
inline IntSize operator+(const IntSize& a, const IntSize& b)
{
return IntSize(a.width() + b.width(), a.height() + b.height());
}
inline IntSize operator-(const IntSize& a, const IntSize& b)
{
return IntSize(a.width() - b.width(), a.height() - b.height());
}
inline IntSize operator-(const IntSize& size)
{
return IntSize(-size.width(), -size.height());
}
inline bool operator==(const IntSize& a, const IntSize& b)
{
return a.width() == b.width() && a.height() == b.height();
}
inline bool operator!=(const IntSize& a, const IntSize& b)
{
return a.width() != b.width() || a.height() != b.height();
}
} // namespace WebCore
#endif // IntSize_h
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