third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceRadialGradient.cpp

   1 /*
   2  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@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/layout/svg/LayoutSVGResourceRadialGradient.h"
  25
  26 #include "core/svg/SVGRadialGradientElement.h"
  27
  28 namespace blink {
  29
  30 LayoutSVGResourceRadialGradient::LayoutSVGResourceRadialGradient(SVGRadialGradientElement* node)
  31     : LayoutSVGResourceGradient(node)
  32 #if ENABLE(OILPAN)
  33     , m_attributesWrapper(RadialGradientAttributesWrapper::create())
  34 #endif
  35 {
  36 }
  37
  38 LayoutSVGResourceRadialGradient::~LayoutSVGResourceRadialGradient()
  39 {
  40 }
  41
  42 bool LayoutSVGResourceRadialGradient::collectGradientAttributes(SVGGradientElement* gradientElement)
  43 {
  44 #if ENABLE(OILPAN)
  45     m_attributesWrapper->set(RadialGradientAttributes());
  46 #else
  47     m_attributes = RadialGradientAttributes();
  48 #endif
  49     return toSVGRadialGradientElement(gradientElement)->collectGradientAttributes(mutableAttributes());
  50 }
  51
  52 FloatPoint LayoutSVGResourceRadialGradient::centerPoint(const RadialGradientAttributes& attributes) const
  53 {
  54     return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), *attributes.cx(), *attributes.cy());
  55 }
  56
  57 FloatPoint LayoutSVGResourceRadialGradient::focalPoint(const RadialGradientAttributes& attributes) const
  58 {
  59     return SVGLengthContext::resolvePoint(element(), attributes.gradientUnits(), *attributes.fx(), *attributes.fy());
  60 }
  61
  62 float LayoutSVGResourceRadialGradient::radius(const RadialGradientAttributes& attributes) const
  63 {
  64     return SVGLengthContext::resolveLength(element(), attributes.gradientUnits(), *attributes.r());
  65 }
  66
  67 float LayoutSVGResourceRadialGradient::focalRadius(const RadialGradientAttributes& attributes) const
  68 {
  69     return SVGLengthContext::resolveLength(element(), attributes.gradientUnits(), *attributes.fr());
  70 }
  71
  72 void LayoutSVGResourceRadialGradient::buildGradient(GradientData* gradientData) const
  73 {
  74     const RadialGradientAttributes& attributes = this->attributes();
  75     gradientData->gradient = Gradient::create(this->focalPoint(attributes),
  76         this->focalRadius(attributes),
  77         this->centerPoint(attributes),
  78         this->radius(attributes));
  79
  80     gradientData->gradient->setSpreadMethod(platformSpreadMethodFromSVGType(attributes.spreadMethod()));
  81
  82     addStops(gradientData, attributes.stops());
  83 }
  84
  85 }