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      1 /*
      2  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      4  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  */
     21 
     22 #include "config.h"
     23 
     24 #include "core/rendering/svg/RenderSVGResourceRadialGradient.h"
     25 
     26 #include "core/svg/SVGRadialGradientElement.h"
     27 
     28 namespace blink {
     29 
     30 const RenderSVGResourceType RenderSVGResourceRadialGradient::s_resourceType = RadialGradientResourceType;
     31 
     32 RenderSVGResourceRadialGradient::RenderSVGResourceRadialGradient(SVGRadialGradientElement* node)
     33     : RenderSVGResourceGradient(node)
     34 {
     35 }
     36 
     37 RenderSVGResourceRadialGradient::~RenderSVGResourceRadialGradient()
     38 {
     39 }
     40 
     41 bool RenderSVGResourceRadialGradient::collectGradientAttributes(SVGGradientElement* gradientElement)
     42 {
     43     m_attributes = RadialGradientAttributes();
     44     return toSVGRadialGradientElement(gradientElement)->collectGradientAttributes(m_attributes);
     45 }
     46 
     47 FloatPoint RenderSVGResourceRadialGradient::centerPoint(const RadialGradientAttributes& attributes) const
     48 {
     49     return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), attributes.cx(), attributes.cy());
     50 }
     51 
     52 FloatPoint RenderSVGResourceRadialGradient::focalPoint(const RadialGradientAttributes& attributes) const
     53 {
     54     return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), attributes.fx(), attributes.fy());
     55 }
     56 
     57 float RenderSVGResourceRadialGradient::radius(const RadialGradientAttributes& attributes) const
     58 {
     59     return SVGLengthContext::resolveLength(element(), attributes.gradientUnits(), attributes.r());
     60 }
     61 
     62 float RenderSVGResourceRadialGradient::focalRadius(const RadialGradientAttributes& attributes) const
     63 {
     64     return SVGLengthContext::resolveLength(element(), attributes.gradientUnits(), attributes.fr());
     65 }
     66 
     67 void RenderSVGResourceRadialGradient::buildGradient(GradientData* gradientData) const
     68 {
     69     gradientData->gradient = Gradient::create(this->focalPoint(m_attributes),
     70         this->focalRadius(m_attributes),
     71         this->centerPoint(m_attributes),
     72         this->radius(m_attributes));
     73 
     74     gradientData->gradient->setSpreadMethod(platformSpreadMethodFromSVGType(m_attributes.spreadMethod()));
     75 
     76     addStops(gradientData, m_attributes.stops());
     77 }
     78 
     79 }
     80