Source/core/rendering/svg/RenderSVGResourceRadialGradient.cpp

/*
 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#include "config.h"

#include "core/rendering/svg/RenderSVGResourceRadialGradient.h"

#include "core/svg/SVGRadialGradientElement.h"

namespace blink {

RenderSVGResourceRadialGradient::RenderSVGResourceRadialGradient(SVGRadialGradientElement* node)
    : RenderSVGResourceGradient(node)
{
}

RenderSVGResourceRadialGradient::~RenderSVGResourceRadialGradient()
{
}

bool RenderSVGResourceRadialGradient::collectGradientAttributes(SVGGradientElement* gradientElement)
{
    m_attributes = RadialGradientAttributes();
    return toSVGRadialGradientElement(gradientElement)->collectGradientAttributes(m_attributes);
}

FloatPoint RenderSVGResourceRadialGradient::centerPoint(const RadialGradientAttributes& attributes) const
{
    return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), attributes.cx(), attributes.cy());
}

FloatPoint RenderSVGResourceRadialGradient::focalPoint(const RadialGradientAttributes& attributes) const
{
    return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), attributes.fx(), attributes.fy());
}

float RenderSVGResourceRadialGradient::radius(const RadialGradientAttributes& attributes) const
{
    return SVGLengthContext::resolveLength(element(), attributes.gradientUnits(), attributes.r());
}

float RenderSVGResourceRadialGradient::focalRadius(const RadialGradientAttributes& attributes) const
{
    return SVGLengthContext::resolveLength(element(), attributes.gradientUnits(), attributes.fr());
}

void RenderSVGResourceRadialGradient::buildGradient(GradientData* gradientData) const
{
    gradientData->gradient = Gradient::create(this->focalPoint(m_attributes),
        this->focalRadius(m_attributes),
        this->centerPoint(m_attributes),
        this->radius(m_attributes));

    gradientData->gradient->setSpreadMethod(platformSpreadMethodFromSVGType(m_attributes.spreadMethod()));

    addStops(gradientData, m_attributes.stops());
}

}