third_party/WebKit/Source/core/svg/SVGGradientElement.h

   1 /*
   2  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
   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 SVGGradientElement_h
  22 #define SVGGradientElement_h
  23
  24 #include "core/SVGNames.h"
  25 #include "core/svg/SVGAnimatedEnumeration.h"
  26 #include "core/svg/SVGAnimatedTransformList.h"
  27 #include "core/svg/SVGElement.h"
  28 #include "core/svg/SVGURIReference.h"
  29 #include "core/svg/SVGUnitTypes.h"
  30 #include "platform/graphics/Gradient.h"
  31 #include "platform/heap/Handle.h"
  32
  33 namespace blink {
  34
  35 enum SVGSpreadMethodType {
  36     SVGSpreadMethodUnknown = 0,
  37     SVGSpreadMethodPad,
  38     SVGSpreadMethodReflect,
  39     SVGSpreadMethodRepeat
  40 };
  41 template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGSpreadMethodType>();
  42
  43 class SVGGradientElement : public SVGElement,
  44                            public SVGURIReference {
  45     DEFINE_WRAPPERTYPEINFO();
  46     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SVGGradientElement);
  47 public:
  48     Vector<Gradient::ColorStop> buildStops();
  49
  50     SVGAnimatedTransformList* gradientTransform() { return m_gradientTransform.get(); }
  51     SVGAnimatedEnumeration<SVGSpreadMethodType>* spreadMethod() { return m_spreadMethod.get(); }
  52     SVGAnimatedEnumeration<SVGUnitTypes::SVGUnitType>* gradientUnits() { return m_gradientUnits.get(); }
  53
  54     DECLARE_VIRTUAL_TRACE();
  55
  56 protected:
  57     SVGGradientElement(const QualifiedName&, Document&);
  58
  59     void svgAttributeChanged(const QualifiedName&) override;
  60
  61 private:
  62     bool needsPendingResourceHandling() const final { return false; }
  63
  64     void childrenChanged(const ChildrenChange&) final;
  65
  66     RefPtrWillBeMember<SVGAnimatedTransformList> m_gradientTransform;
  67     RefPtrWillBeMember<SVGAnimatedEnumeration<SVGSpreadMethodType>> m_spreadMethod;
  68     RefPtrWillBeMember<SVGAnimatedEnumeration<SVGUnitTypes::SVGUnitType>> m_gradientUnits;
  69 };
  70
  71 inline bool isSVGGradientElement(const SVGElement& element)
  72 {
  73     return element.hasTagName(SVGNames::radialGradientTag) || element.hasTagName(SVGNames::linearGradientTag);
  74 }
  75
  76 DEFINE_SVGELEMENT_TYPE_CASTS_WITH_FUNCTION(SVGGradientElement);
  77
  78 } // namespace blink
  79
  80 #endif // SVGGradientElement_h