1/*
2 * Copyright (C) 2006 Oliver Hunt <oliver@nerget.com>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB.  If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20#ifndef SVGFEDisplacementMapElement_h
21#define SVGFEDisplacementMapElement_h
22
23#include "core/svg/SVGAnimatedEnumeration.h"
24#include "core/svg/SVGAnimatedNumber.h"
25#include "core/svg/SVGFilterPrimitiveStandardAttributes.h"
26#include "platform/graphics/filters/FEDisplacementMap.h"
27
28namespace WebCore {
29
30template<>
31struct SVGPropertyTraits<ChannelSelectorType> {
32    static unsigned highestEnumValue() { return CHANNEL_A; }
33
34    static String toString(ChannelSelectorType type)
35    {
36        switch (type) {
37        case CHANNEL_UNKNOWN:
38            return emptyString();
39        case CHANNEL_R:
40            return "R";
41        case CHANNEL_G:
42            return "G";
43        case CHANNEL_B:
44            return "B";
45        case CHANNEL_A:
46            return "A";
47        }
48
49        ASSERT_NOT_REACHED();
50        return emptyString();
51    }
52
53    static ChannelSelectorType fromString(const String& value)
54    {
55        if (value == "R")
56            return CHANNEL_R;
57        if (value == "G")
58            return CHANNEL_G;
59        if (value == "B")
60            return CHANNEL_B;
61        if (value == "A")
62            return CHANNEL_A;
63        return CHANNEL_UNKNOWN;
64    }
65};
66
67class SVGFEDisplacementMapElement FINAL : public SVGFilterPrimitiveStandardAttributes {
68public:
69    static PassRefPtr<SVGFEDisplacementMapElement> create(Document&);
70
71    static ChannelSelectorType stringToChannel(const String&);
72
73private:
74    SVGFEDisplacementMapElement(Document&);
75
76    bool isSupportedAttribute(const QualifiedName&);
77    virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
78    virtual bool setFilterEffectAttribute(FilterEffect*, const QualifiedName& attrName);
79    virtual void svgAttributeChanged(const QualifiedName&);
80    virtual PassRefPtr<FilterEffect> build(SVGFilterBuilder*, Filter*);
81
82    BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGFEDisplacementMapElement)
83        DECLARE_ANIMATED_STRING(In1, in1)
84        DECLARE_ANIMATED_STRING(In2, in2)
85        DECLARE_ANIMATED_ENUMERATION(XChannelSelector, xChannelSelector, ChannelSelectorType)
86        DECLARE_ANIMATED_ENUMERATION(YChannelSelector, yChannelSelector, ChannelSelectorType)
87        DECLARE_ANIMATED_NUMBER(Scale, scale)
88    END_DECLARE_ANIMATED_PROPERTIES
89};
90
91} // namespace WebCore
92
93#endif // SVGFEDisplacementMapElement_h
94