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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 #if ENABLE(SVG)
     24 #include "RenderSVGResourceRadialGradient.h"
     25 
     26 #include "RadialGradientAttributes.h"
     27 #include "SVGRadialGradientElement.h"
     28 
     29 namespace WebCore {
     30 
     31 RenderSVGResourceType RenderSVGResourceRadialGradient::s_resourceType = RadialGradientResourceType;
     32 
     33 RenderSVGResourceRadialGradient::RenderSVGResourceRadialGradient(SVGRadialGradientElement* node)
     34     : RenderSVGResourceGradient(node)
     35 {
     36 }
     37 
     38 RenderSVGResourceRadialGradient::~RenderSVGResourceRadialGradient()
     39 {
     40 }
     41 
     42 void RenderSVGResourceRadialGradient::collectGradientAttributes(SVGGradientElement* gradientElement)
     43 {
     44     m_attributes = RadialGradientAttributes();
     45     static_cast<SVGRadialGradientElement*>(gradientElement)->collectGradientAttributes(m_attributes);
     46 }
     47 
     48 void RenderSVGResourceRadialGradient::buildGradient(GradientData* gradientData, SVGGradientElement* gradientElement) const
     49 {
     50     SVGRadialGradientElement* radialGradientElement = static_cast<SVGRadialGradientElement*>(gradientElement);
     51 
     52     // Determine gradient focal/center points and radius
     53     FloatPoint focalPoint;
     54     FloatPoint centerPoint;
     55     float radius;
     56     radialGradientElement->calculateFocalCenterPointsAndRadius(m_attributes, focalPoint, centerPoint, radius);
     57 
     58     gradientData->gradient = Gradient::create(focalPoint,
     59                                               0, // SVG does not support a "focus radius"
     60                                               centerPoint,
     61                                               radius);
     62 
     63     gradientData->gradient->setSpreadMethod(m_attributes.spreadMethod());
     64 
     65     // Add stops
     66     addStops(gradientData, m_attributes.stops());
     67 }
     68 
     69 }
     70 
     71 #endif
     72