1/*
2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 * Copyright (C) 2004, 2005 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#include "config.h"
22
23#if ENABLE(SVG) && ENABLE(FILTERS)
24#include "SVGFEComponentTransferElement.h"
25
26#include "Attr.h"
27#include "FilterEffect.h"
28#include "SVGFEFuncAElement.h"
29#include "SVGFEFuncBElement.h"
30#include "SVGFEFuncGElement.h"
31#include "SVGFEFuncRElement.h"
32#include "SVGFilterBuilder.h"
33#include "SVGNames.h"
34
35namespace WebCore {
36
37// Animated property declarations
38DEFINE_ANIMATED_STRING(SVGFEComponentTransferElement, SVGNames::inAttr, In1, in1)
39
40inline SVGFEComponentTransferElement::SVGFEComponentTransferElement(const QualifiedName& tagName, Document* document)
41    : SVGFilterPrimitiveStandardAttributes(tagName, document)
42{
43}
44
45PassRefPtr<SVGFEComponentTransferElement> SVGFEComponentTransferElement::create(const QualifiedName& tagName, Document* document)
46{
47    return adoptRef(new SVGFEComponentTransferElement(tagName, document));
48}
49
50void SVGFEComponentTransferElement::parseMappedAttribute(Attribute* attr)
51{
52    const String& value = attr->value();
53    if (attr->name() == SVGNames::inAttr)
54        setIn1BaseValue(value);
55    else
56        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
57}
58
59void SVGFEComponentTransferElement::synchronizeProperty(const QualifiedName& attrName)
60{
61    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);
62
63    if (attrName == anyQName() || attrName == SVGNames::inAttr)
64        synchronizeIn1();
65}
66
67AttributeToPropertyTypeMap& SVGFEComponentTransferElement::attributeToPropertyTypeMap()
68{
69    DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
70    return s_attributeToPropertyTypeMap;
71}
72
73void SVGFEComponentTransferElement::fillAttributeToPropertyTypeMap()
74{
75    AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
76
77    SVGFilterPrimitiveStandardAttributes::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
78    attributeToPropertyTypeMap.set(SVGNames::inAttr, AnimatedString);
79}
80
81PassRefPtr<FilterEffect> SVGFEComponentTransferElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
82{
83    FilterEffect* input1 = filterBuilder->getEffectById(in1());
84
85    if (!input1)
86        return 0;
87
88    ComponentTransferFunction red;
89    ComponentTransferFunction green;
90    ComponentTransferFunction blue;
91    ComponentTransferFunction alpha;
92
93    for (Node* node = firstChild(); node; node = node->nextSibling()) {
94        if (node->hasTagName(SVGNames::feFuncRTag))
95            red = static_cast<SVGFEFuncRElement*>(node)->transferFunction();
96        else if (node->hasTagName(SVGNames::feFuncGTag))
97            green = static_cast<SVGFEFuncGElement*>(node)->transferFunction();
98        else if (node->hasTagName(SVGNames::feFuncBTag))
99           blue = static_cast<SVGFEFuncBElement*>(node)->transferFunction();
100        else if (node->hasTagName(SVGNames::feFuncATag))
101            alpha = static_cast<SVGFEFuncAElement*>(node)->transferFunction();
102    }
103
104    RefPtr<FilterEffect> effect = FEComponentTransfer::create(filter, red, green, blue, alpha);
105    effect->inputEffects().append(input1);
106    return effect.release();
107}
108
109}
110
111#endif
112