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      1 /*
      2     Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org>
      3                   2004, 2005, 2006 Rob Buis <buis (at) 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 
     30 namespace WebCore {
     31 
     32 char SVGBaseFrequencyXIdentifier[] = "SVGBaseFrequencyX";
     33 char SVGBaseFrequencyYIdentifier[] = "SVGBaseFrequencyY";
     34 
     35 SVGFETurbulenceElement::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 
     43 SVGFETurbulenceElement::~SVGFETurbulenceElement()
     44 {
     45 }
     46 
     47 void 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 
     74 void 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 
    101 bool 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