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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  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  */
     20 
     21 #include "config.h"
     22 
     23 #include "core/rendering/svg/RenderSVGResourceLinearGradient.h"
     24 
     25 #include "core/svg/LinearGradientAttributes.h"
     26 #include "core/svg/SVGLinearGradientElement.h"
     27 
     28 namespace WebCore {
     29 
     30 RenderSVGResourceType RenderSVGResourceLinearGradient::s_resourceType = LinearGradientResourceType;
     31 
     32 RenderSVGResourceLinearGradient::RenderSVGResourceLinearGradient(SVGLinearGradientElement* node)
     33     : RenderSVGResourceGradient(node)
     34 {
     35 }
     36 
     37 RenderSVGResourceLinearGradient::~RenderSVGResourceLinearGradient()
     38 {
     39 }
     40 
     41 bool RenderSVGResourceLinearGradient::collectGradientAttributes(SVGGradientElement* gradientElement)
     42 {
     43     m_attributes = LinearGradientAttributes();
     44     return static_cast<SVGLinearGradientElement*>(gradientElement)->collectGradientAttributes(m_attributes);
     45 }
     46 
     47 FloatPoint RenderSVGResourceLinearGradient::startPoint(const LinearGradientAttributes& attributes) const
     48 {
     49     return SVGLengthContext::resolvePoint(static_cast<const SVGElement*>(node()), attributes.gradientUnits(), attributes.x1(), attributes.y1());
     50 }
     51 
     52 FloatPoint RenderSVGResourceLinearGradient::endPoint(const LinearGradientAttributes& attributes) const
     53 {
     54     return SVGLengthContext::resolvePoint(static_cast<const SVGElement*>(node()), attributes.gradientUnits(), attributes.x2(), attributes.y2());
     55 }
     56 
     57 void RenderSVGResourceLinearGradient::buildGradient(GradientData* gradientData) const
     58 {
     59     gradientData->gradient = Gradient::create(startPoint(m_attributes), endPoint(m_attributes));
     60     gradientData->gradient->setSpreadMethod(platformSpreadMethodFromSVGType(m_attributes.spreadMethod()));
     61     addStops(gradientData, m_attributes.stops());
     62 }
     63 
     64 }
     65