src/third_party/WebKit/Source/core/svg/SVGComponentTransferFunctionElement.h

   1 /*
   2  * Copyright (C) 2004, 2005, 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 SVGComponentTransferFunctionElement_h
  22 #define SVGComponentTransferFunctionElement_h
  23
  24 #include "core/platform/graphics/filters/FEComponentTransfer.h"
  25 #include "core/svg/SVGAnimatedEnumeration.h"
  26 #include "core/svg/SVGAnimatedNumber.h"
  27 #include "core/svg/SVGAnimatedNumberList.h"
  28
  29 namespace WebCore {
  30
  31 template<>
  32 struct SVGPropertyTraits<ComponentTransferType> {
  33     static unsigned highestEnumValue() { return FECOMPONENTTRANSFER_TYPE_GAMMA; }
  34
  35     static String toString(ComponentTransferType type)
  36     {
  37         switch (type) {
  38         case FECOMPONENTTRANSFER_TYPE_UNKNOWN:
  39             return emptyString();
  40         case FECOMPONENTTRANSFER_TYPE_IDENTITY:
  41             return "identity";
  42         case FECOMPONENTTRANSFER_TYPE_TABLE:
  43             return "table";
  44         case FECOMPONENTTRANSFER_TYPE_DISCRETE:
  45             return "discrete";
  46         case FECOMPONENTTRANSFER_TYPE_LINEAR:
  47             return "linear";
  48         case FECOMPONENTTRANSFER_TYPE_GAMMA:
  49             return "gamma";
  50         }
  51
  52         ASSERT_NOT_REACHED();
  53         return emptyString();
  54     }
  55
  56     static ComponentTransferType fromString(const String& value)
  57     {
  58         if (value == "identity")
  59             return FECOMPONENTTRANSFER_TYPE_IDENTITY;
  60         if (value == "table")
  61             return FECOMPONENTTRANSFER_TYPE_TABLE;
  62         if (value == "discrete")
  63             return FECOMPONENTTRANSFER_TYPE_DISCRETE;
  64         if (value == "linear")
  65             return FECOMPONENTTRANSFER_TYPE_LINEAR;
  66         if (value == "gamma")
  67             return FECOMPONENTTRANSFER_TYPE_GAMMA;
  68         return FECOMPONENTTRANSFER_TYPE_UNKNOWN;
  69     }
  70 };
  71
  72 class SVGComponentTransferFunctionElement : public SVGElement {
  73 public:
  74     ComponentTransferFunction transferFunction() const;
  75
  76 protected:
  77     SVGComponentTransferFunctionElement(const QualifiedName&, Document&);
  78
  79     bool isSupportedAttribute(const QualifiedName&);
  80     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
  81     virtual void svgAttributeChanged(const QualifiedName&);
  82
  83     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE { return false; }
  84
  85 private:
  86     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGComponentTransferFunctionElement)
  87         DECLARE_ANIMATED_ENUMERATION(Type, type, ComponentTransferType)
  88         DECLARE_ANIMATED_NUMBER_LIST(TableValues, tableValues)
  89         DECLARE_ANIMATED_NUMBER(Slope, slope)
  90         DECLARE_ANIMATED_NUMBER(Intercept, intercept)
  91         DECLARE_ANIMATED_NUMBER(Amplitude, amplitude)
  92         DECLARE_ANIMATED_NUMBER(Exponent, exponent)
  93         DECLARE_ANIMATED_NUMBER(Offset, offset)
  94     END_DECLARE_ANIMATED_PROPERTIES
  95 };
  96
  97 } // namespace WebCore
  98
  99 #endif