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/*
* 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 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 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.
*/
#include "config.h"
#include "FloatPoint.h"
#include "AffineTransform.h"
#include "FloatConversion.h"
#include "IntPoint.h"
#include "TransformationMatrix.h"
#include <limits>
#include <math.h>
#include <wtf/PrintStream.h>
namespace WebCore {
FloatPoint::FloatPoint(const IntPoint& p) : m_x(p.x()), m_y(p.y())
{
}
void FloatPoint::normalize()
{
float tempLength = length();
if (tempLength) {
m_x /= tempLength;
m_y /= tempLength;
}
}
float FloatPoint::slopeAngleRadians() const
{
return atan2f(m_y, m_x);
}
float FloatPoint::length() const
{
return sqrtf(lengthSquared());
}
FloatPoint FloatPoint::matrixTransform(const AffineTransform& transform) const
{
double newX, newY;
transform.map(static_cast<double>(m_x), static_cast<double>(m_y), newX, newY);
return narrowPrecision(newX, newY);
}
FloatPoint FloatPoint::matrixTransform(const TransformationMatrix& transform) const
{
double newX, newY;
transform.map(static_cast<double>(m_x), static_cast<double>(m_y), newX, newY);
return narrowPrecision(newX, newY);
}
FloatPoint FloatPoint::narrowPrecision(double x, double y)
{
return FloatPoint(narrowPrecisionToFloat(x), narrowPrecisionToFloat(y));
}
void FloatPoint::dump(PrintStream& out) const
{
out.printf("(%f, %f)", x(), y());
}
}
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