third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceLinearGradient.h

   1 /*
   2  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@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 #ifndef LayoutSVGResourceLinearGradient_h
  22 #define LayoutSVGResourceLinearGradient_h
  23
  24 #include "core/layout/svg/LayoutSVGResourceGradient.h"
  25 #include "core/svg/LinearGradientAttributes.h"
  26
  27 namespace blink {
  28
  29 class SVGLinearGradientElement;
  30
  31 class LayoutSVGResourceLinearGradient final : public LayoutSVGResourceGradient {
  32 public:
  33     explicit LayoutSVGResourceLinearGradient(SVGLinearGradientElement*);
  34     ~LayoutSVGResourceLinearGradient() override;
  35
  36     const char* name() const override { return "LayoutSVGResourceLinearGradient"; }
  37
  38     static const LayoutSVGResourceType s_resourceType = LinearGradientResourceType;
  39     LayoutSVGResourceType resourceType() const override { return s_resourceType; }
  40
  41     SVGUnitTypes::SVGUnitType gradientUnits() const override { return attributes().gradientUnits(); }
  42     void calculateGradientTransform(AffineTransform& transform) override { transform = attributes().gradientTransform(); }
  43     bool collectGradientAttributes(SVGGradientElement*) override;
  44     void buildGradient(GradientData*) const override;
  45
  46     FloatPoint startPoint(const LinearGradientAttributes&) const;
  47     FloatPoint endPoint(const LinearGradientAttributes&) const;
  48
  49 private:
  50 #if ENABLE(OILPAN)
  51     Persistent<LinearGradientAttributesWrapper> m_attributesWrapper;
  52
  53     LinearGradientAttributes& mutableAttributes() { return m_attributesWrapper->attributes(); }
  54     const LinearGradientAttributes& attributes() const { return m_attributesWrapper->attributes(); }
  55 #else
  56     LinearGradientAttributes m_attributes;
  57
  58     LinearGradientAttributes& mutableAttributes() { return m_attributes; }
  59     const LinearGradientAttributes& attributes() const { return m_attributes; }
  60 #endif
  61 };
  62
  63 } // namespace blink
  64
  65 #endif // LayoutSVGResourceLinearGradient_h