third_party/WebKit/Source/core/svg/SVGFETurbulenceElement.cpp

   1 /*
   2  * Copyright (C) 2004, 2005, 2007 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 #include "config.h"
  22
  23 #include "core/svg/SVGFETurbulenceElement.h"
  24
  25 #include "core/SVGNames.h"
  26 #include "core/svg/SVGParserUtilities.h"
  27
  28 namespace blink {
  29
  30 template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGStitchOptions>()
  31 {
  32     DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ());
  33     if (entries.isEmpty()) {
  34         entries.append(std::make_pair(SVG_STITCHTYPE_STITCH, "stitch"));
  35         entries.append(std::make_pair(SVG_STITCHTYPE_NOSTITCH, "noStitch"));
  36     }
  37     return entries;
  38 }
  39
  40 template<> const SVGEnumerationStringEntries& getStaticStringEntries<TurbulenceType>()
  41 {
  42     DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ());
  43     if (entries.isEmpty()) {
  44         entries.append(std::make_pair(FETURBULENCE_TYPE_FRACTALNOISE, "fractalNoise"));
  45         entries.append(std::make_pair(FETURBULENCE_TYPE_TURBULENCE, "turbulence"));
  46     }
  47     return entries;
  48 }
  49
  50 inline SVGFETurbulenceElement::SVGFETurbulenceElement(Document& document)
  51     : SVGFilterPrimitiveStandardAttributes(SVGNames::feTurbulenceTag, document)
  52     , m_baseFrequency(SVGAnimatedNumberOptionalNumber::create(this, SVGNames::baseFrequencyAttr))
  53     , m_seed(SVGAnimatedNumber::create(this, SVGNames::seedAttr, SVGNumber::create(0)))
  54     , m_stitchTiles(SVGAnimatedEnumeration<SVGStitchOptions>::create(this, SVGNames::stitchTilesAttr, SVG_STITCHTYPE_NOSTITCH))
  55     , m_type(SVGAnimatedEnumeration<TurbulenceType>::create(this, SVGNames::typeAttr, FETURBULENCE_TYPE_TURBULENCE))
  56     , m_numOctaves(SVGAnimatedInteger::create(this, SVGNames::numOctavesAttr, SVGInteger::create(1)))
  57 {
  58     addToPropertyMap(m_baseFrequency);
  59     addToPropertyMap(m_seed);
  60     addToPropertyMap(m_stitchTiles);
  61     addToPropertyMap(m_type);
  62     addToPropertyMap(m_numOctaves);
  63 }
  64
  65 DEFINE_TRACE(SVGFETurbulenceElement)
  66 {
  67     visitor->trace(m_baseFrequency);
  68     visitor->trace(m_seed);
  69     visitor->trace(m_stitchTiles);
  70     visitor->trace(m_type);
  71     visitor->trace(m_numOctaves);
  72     SVGFilterPrimitiveStandardAttributes::trace(visitor);
  73 }
  74
  75 DEFINE_NODE_FACTORY(SVGFETurbulenceElement)
  76
  77 bool SVGFETurbulenceElement::setFilterEffectAttribute(FilterEffect* effect, const QualifiedName& attrName)
  78 {
  79     FETurbulence* turbulence = static_cast<FETurbulence*>(effect);
  80     if (attrName == SVGNames::typeAttr)
  81         return turbulence->setType(m_type->currentValue()->enumValue());
  82     if (attrName == SVGNames::stitchTilesAttr)
  83         return turbulence->setStitchTiles(m_stitchTiles->currentValue()->enumValue());
  84     if (attrName == SVGNames::baseFrequencyAttr) {
  85         bool baseFrequencyXChanged = turbulence->setBaseFrequencyX(baseFrequencyX()->currentValue()->value());
  86         bool baseFrequencyYChanged = turbulence->setBaseFrequencyY(baseFrequencyY()->currentValue()->value());
  87         return (baseFrequencyXChanged || baseFrequencyYChanged);
  88     }
  89     if (attrName == SVGNames::seedAttr)
  90         return turbulence->setSeed(m_seed->currentValue()->value());
  91     if (attrName == SVGNames::numOctavesAttr)
  92         return turbulence->setNumOctaves(m_numOctaves->currentValue()->value());
  93
  94     ASSERT_NOT_REACHED();
  95     return false;
  96 }
  97
  98 void SVGFETurbulenceElement::svgAttributeChanged(const QualifiedName& attrName)
  99 {
 100     if (attrName == SVGNames::baseFrequencyAttr
 101         || attrName == SVGNames::numOctavesAttr
 102         || attrName == SVGNames::seedAttr
 103         || attrName == SVGNames::stitchTilesAttr
 104         || attrName == SVGNames::typeAttr) {
 105         SVGElement::InvalidationGuard invalidationGuard(this);
 106         primitiveAttributeChanged(attrName);
 107         return;
 108     }
 109
 110     SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
 111 }
 112
 113 PassRefPtrWillBeRawPtr<FilterEffect> SVGFETurbulenceElement::build(SVGFilterBuilder*, Filter* filter)
 114 {
 115     if (baseFrequencyX()->currentValue()->value() < 0 || baseFrequencyY()->currentValue()->value() < 0)
 116         return nullptr;
 117     return FETurbulence::create(filter, m_type->currentValue()->enumValue(), baseFrequencyX()->currentValue()->value(), baseFrequencyY()->currentValue()->value(), m_numOctaves->currentValue()->value(), m_seed->currentValue()->value(), m_stitchTiles->currentValue()->enumValue() == SVG_STITCHTYPE_STITCH);
 118 }
 119
 120 } // namespace blink