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/*
* Copyright (c) 2012, Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 LayoutPoint_h
#define LayoutPoint_h
#include "platform/geometry/FloatPoint.h"
#include "platform/geometry/LayoutSize.h"
#include "wtf/MathExtras.h"
namespace WebCore {
class LayoutPoint {
public:
LayoutPoint() { }
LayoutPoint(LayoutUnit x, LayoutUnit y) : m_x(x), m_y(y) { }
LayoutPoint(const IntPoint& point) : m_x(point.x()), m_y(point.y()) { }
explicit LayoutPoint(const FloatPoint& size) : m_x(size.x()), m_y(size.y()) { }
explicit LayoutPoint(const LayoutSize& size) : m_x(size.width()), m_y(size.height()) { }
static LayoutPoint zero() { return LayoutPoint(); }
LayoutUnit x() const { return m_x; }
LayoutUnit y() const { return m_y; }
void setX(LayoutUnit x) { m_x = x; }
void setY(LayoutUnit y) { m_y = y; }
void move(const LayoutSize& s) { move(s.width(), s.height()); }
void moveBy(const LayoutPoint& offset) { move(offset.x(), offset.y()); }
void move(LayoutUnit dx, LayoutUnit dy) { m_x += dx; m_y += dy; }
void scale(float sx, float sy)
{
m_x *= sx;
m_y *= sy;
}
LayoutPoint expandedTo(const LayoutPoint& other) const
{
return LayoutPoint(std::max(m_x, other.m_x), std::max(m_y, other.m_y));
}
LayoutPoint shrunkTo(const LayoutPoint& other) const
{
return LayoutPoint(std::min(m_x, other.m_x), std::min(m_y, other.m_y));
}
void clampNegativeToZero()
{
*this = expandedTo(zero());
}
LayoutPoint transposedPoint() const
{
return LayoutPoint(m_y, m_x);
}
private:
LayoutUnit m_x, m_y;
};
inline LayoutPoint& operator+=(LayoutPoint& a, const LayoutSize& b)
{
a.move(b.width(), b.height());
return a;
}
inline LayoutPoint& operator-=(LayoutPoint& a, const LayoutSize& b)
{
a.move(-b.width(), -b.height());
return a;
}
inline LayoutPoint operator+(const LayoutPoint& a, const LayoutSize& b)
{
return LayoutPoint(a.x() + b.width(), a.y() + b.height());
}
inline LayoutPoint operator+(const LayoutPoint& a, const LayoutPoint& b)
{
return LayoutPoint(a.x() + b.x(), a.y() + b.y());
}
inline LayoutSize operator-(const LayoutPoint& a, const LayoutPoint& b)
{
return LayoutSize(a.x() - b.x(), a.y() - b.y());
}
inline LayoutPoint operator-(const LayoutPoint& a, const LayoutSize& b)
{
return LayoutPoint(a.x() - b.width(), a.y() - b.height());
}
inline LayoutPoint operator-(const LayoutPoint& point)
{
return LayoutPoint(-point.x(), -point.y());
}
inline bool operator==(const LayoutPoint& a, const LayoutPoint& b)
{
return a.x() == b.x() && a.y() == b.y();
}
inline bool operator!=(const LayoutPoint& a, const LayoutPoint& b)
{
return a.x() != b.x() || a.y() != b.y();
}
inline LayoutPoint toPoint(const LayoutSize& size)
{
return LayoutPoint(size.width(), size.height());
}
inline LayoutPoint toLayoutPoint(const LayoutSize& p)
{
return LayoutPoint(p.width(), p.height());
}
inline LayoutSize toSize(const LayoutPoint& a)
{
return LayoutSize(a.x(), a.y());
}
inline IntPoint flooredIntPoint(const LayoutPoint& point)
{
return IntPoint(point.x().floor(), point.y().floor());
}
inline IntPoint roundedIntPoint(const LayoutPoint& point)
{
return IntPoint(point.x().round(), point.y().round());
}
inline IntPoint roundedIntPoint(const LayoutSize& size)
{
return IntPoint(size.width().round(), size.height().round());
}
inline IntPoint ceiledIntPoint(const LayoutPoint& point)
{
return IntPoint(point.x().ceil(), point.y().ceil());
}
inline LayoutPoint flooredLayoutPoint(const FloatPoint& p)
{
return LayoutPoint(LayoutUnit::fromFloatFloor(p.x()), LayoutUnit::fromFloatFloor(p.y()));
}
inline LayoutPoint ceiledLayoutPoint(const FloatPoint& p)
{
return LayoutPoint(LayoutUnit::fromFloatCeil(p.x()), LayoutUnit::fromFloatCeil(p.y()));
}
inline IntSize pixelSnappedIntSize(const LayoutSize& s, const LayoutPoint& p)
{
return IntSize(snapSizeToPixel(s.width(), p.x()), snapSizeToPixel(s.height(), p.y()));
}
inline LayoutPoint roundedLayoutPoint(const FloatPoint& p)
{
return LayoutPoint(p);
}
inline LayoutSize toLayoutSize(const LayoutPoint& p)
{
return LayoutSize(p.x(), p.y());
}
inline LayoutPoint flooredLayoutPoint(const FloatSize& s)
{
return flooredLayoutPoint(FloatPoint(s));
}
} // namespace WebCore
#endif // LayoutPoint_h
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