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 "SVGFEOffsetElement.h"
25
26#include "Attribute.h"
27#include "FilterEffect.h"
28#include "SVGFilterBuilder.h"
29#include "SVGNames.h"
30
31namespace WebCore {
32
33// Animated property definitions
34DEFINE_ANIMATED_STRING(SVGFEOffsetElement, SVGNames::inAttr, In1, in1)
35DEFINE_ANIMATED_NUMBER(SVGFEOffsetElement, SVGNames::dxAttr, Dx, dx)
36DEFINE_ANIMATED_NUMBER(SVGFEOffsetElement, SVGNames::dyAttr, Dy, dy)
37
38inline SVGFEOffsetElement::SVGFEOffsetElement(const QualifiedName& tagName, Document* document)
39    : SVGFilterPrimitiveStandardAttributes(tagName, document)
40{
41}
42
43PassRefPtr<SVGFEOffsetElement> SVGFEOffsetElement::create(const QualifiedName& tagName, Document* document)
44{
45    return adoptRef(new SVGFEOffsetElement(tagName, document));
46}
47
48void SVGFEOffsetElement::parseMappedAttribute(Attribute* attr)
49{
50    const String& value = attr->value();
51    if (attr->name() == SVGNames::dxAttr)
52        setDxBaseValue(value.toFloat());
53    else if (attr->name() == SVGNames::dyAttr)
54        setDyBaseValue(value.toFloat());
55    else if (attr->name() == SVGNames::inAttr)
56        setIn1BaseValue(value);
57    else
58        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
59}
60
61void SVGFEOffsetElement::svgAttributeChanged(const QualifiedName& attrName)
62{
63    SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
64
65    if (attrName == SVGNames::inAttr
66        || attrName == SVGNames::dxAttr
67        || attrName == SVGNames::dyAttr)
68        invalidate();
69}
70
71void SVGFEOffsetElement::synchronizeProperty(const QualifiedName& attrName)
72{
73    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);
74
75    if (attrName == anyQName()) {
76        synchronizeDx();
77        synchronizeDy();
78        synchronizeIn1();
79        return;
80    }
81
82    if (attrName == SVGNames::dxAttr)
83        synchronizeDx();
84    else if (attrName == SVGNames::dyAttr)
85        synchronizeDy();
86    else if (attrName == SVGNames::inAttr)
87        synchronizeIn1();
88}
89
90AttributeToPropertyTypeMap& SVGFEOffsetElement::attributeToPropertyTypeMap()
91{
92    DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
93    return s_attributeToPropertyTypeMap;
94}
95
96void SVGFEOffsetElement::fillAttributeToPropertyTypeMap()
97{
98    AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
99
100    SVGFilterPrimitiveStandardAttributes::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
101    attributeToPropertyTypeMap.set(SVGNames::inAttr, AnimatedString);
102    attributeToPropertyTypeMap.set(SVGNames::dxAttr, AnimatedNumber);
103    attributeToPropertyTypeMap.set(SVGNames::dyAttr, AnimatedNumber);
104}
105
106PassRefPtr<FilterEffect> SVGFEOffsetElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
107{
108    FilterEffect* input1 = filterBuilder->getEffectById(in1());
109
110    if (!input1)
111        return 0;
112
113    RefPtr<FilterEffect> effect = FEOffset::create(filter, dx(), dy());
114    effect->inputEffects().append(input1);
115    return effect.release();
116}
117
118}
119
120#endif // ENABLE(SVG)
121