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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/SVGLinearGradientElement.h"
     26 
     27 namespace blink {
     28 
     29 const RenderSVGResourceType RenderSVGResourceLinearGradient::s_resourceType = LinearGradientResourceType;
     30 
     31 RenderSVGResourceLinearGradient::RenderSVGResourceLinearGradient(SVGLinearGradientElement* node)
     32     : RenderSVGResourceGradient(node)
     33 {
     34 }
     35 
     36 RenderSVGResourceLinearGradient::~RenderSVGResourceLinearGradient()
     37 {
     38 }
     39 
     40 bool RenderSVGResourceLinearGradient::collectGradientAttributes(SVGGradientElement* gradientElement)
     41 {
     42     m_attributes = LinearGradientAttributes();
     43     return toSVGLinearGradientElement(gradientElement)->collectGradientAttributes(m_attributes);
     44 }
     45 
     46 FloatPoint RenderSVGResourceLinearGradient::startPoint(const LinearGradientAttributes& attributes) const
     47 {
     48     return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), attributes.x1(), attributes.y1());
     49 }
     50 
     51 FloatPoint RenderSVGResourceLinearGradient::endPoint(const LinearGradientAttributes& attributes) const
     52 {
     53     return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), attributes.x2(), attributes.y2());
     54 }
     55 
     56 void RenderSVGResourceLinearGradient::buildGradient(GradientData* gradientData) const
     57 {
     58     gradientData->gradient = Gradient::create(startPoint(m_attributes), endPoint(m_attributes));
     59     gradientData->gradient->setSpreadMethod(platformSpreadMethodFromSVGType(m_attributes.spreadMethod()));
     60     addStops(gradientData, m_attributes.stops());
     61 }
     62 
     63 }
     64