1/*
2    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3                  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#include "config.h"
22
23#if ENABLE(SVG) && ENABLE(FILTERS)
24#include "SVGFETurbulenceElement.h"
25
26#include "MappedAttribute.h"
27#include "SVGParserUtilities.h"
28#include "SVGResourceFilter.h"
29
30namespace WebCore {
31
32char SVGBaseFrequencyXIdentifier[] = "SVGBaseFrequencyX";
33char SVGBaseFrequencyYIdentifier[] = "SVGBaseFrequencyY";
34
35SVGFETurbulenceElement::SVGFETurbulenceElement(const QualifiedName& tagName, Document* doc)
36    : SVGFilterPrimitiveStandardAttributes(tagName, doc)
37    , m_numOctaves(1)
38    , m_stitchTiles(SVG_STITCHTYPE_NOSTITCH)
39    , m_type(FETURBULENCE_TYPE_TURBULENCE)
40{
41}
42
43SVGFETurbulenceElement::~SVGFETurbulenceElement()
44{
45}
46
47void SVGFETurbulenceElement::parseMappedAttribute(MappedAttribute* attr)
48{
49    const String& value = attr->value();
50    if (attr->name() == SVGNames::typeAttr) {
51        if (value == "fractalNoise")
52            setTypeBaseValue(FETURBULENCE_TYPE_FRACTALNOISE);
53        else if (value == "turbulence")
54            setTypeBaseValue(FETURBULENCE_TYPE_TURBULENCE);
55    } else if (attr->name() == SVGNames::stitchTilesAttr) {
56        if (value == "stitch")
57            setStitchTilesBaseValue(SVG_STITCHTYPE_STITCH);
58        else if (value == "nostitch")
59            setStitchTilesBaseValue(SVG_STITCHTYPE_NOSTITCH);
60    } else if (attr->name() == SVGNames::baseFrequencyAttr) {
61        float x, y;
62        if (parseNumberOptionalNumber(value, x, y)) {
63            setBaseFrequencyXBaseValue(x);
64            setBaseFrequencyYBaseValue(y);
65        }
66    } else if (attr->name() == SVGNames::seedAttr)
67        setSeedBaseValue(value.toFloat());
68    else if (attr->name() == SVGNames::numOctavesAttr)
69        setNumOctavesBaseValue(value.toUIntStrict());
70    else
71        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);
72}
73
74void SVGFETurbulenceElement::synchronizeProperty(const QualifiedName& attrName)
75{
76    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);
77
78    if (attrName == anyQName()) {
79        synchronizeType();
80        synchronizeStitchTiles();
81        synchronizeBaseFrequencyX();
82        synchronizeBaseFrequencyY();
83        synchronizeSeed();
84        synchronizeNumOctaves();
85        return;
86    }
87
88    if (attrName == SVGNames::typeAttr)
89        synchronizeType();
90    else if (attrName == SVGNames::stitchTilesAttr)
91        synchronizeStitchTiles();
92    else if (attrName == SVGNames::baseFrequencyAttr) {
93        synchronizeBaseFrequencyX();
94        synchronizeBaseFrequencyY();
95    } else if (attrName == SVGNames::seedAttr)
96        synchronizeSeed();
97    else if (attrName == SVGNames::numOctavesAttr)
98        synchronizeNumOctaves();
99}
100
101bool SVGFETurbulenceElement::build(SVGResourceFilter* filterResource)
102{
103    RefPtr<FilterEffect> effect = FETurbulence::create(static_cast<TurbulanceType>(type()), baseFrequencyX(),
104                                        baseFrequencyY(), numOctaves(), seed(), stitchTiles() == SVG_STITCHTYPE_STITCH);
105    filterResource->addFilterEffect(this, effect.release());
106
107    return true;
108}
109
110}
111
112#endif // ENABLE(SVG)
113