/*

    Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>

                  2004, 2005 Rob Buis <buis@kde.org>

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Library General Public

    License as published by the Free Software Foundation; either

    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License

    along with this library; see the file COPYING.LIB.  If not, write to

    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

    Boston, MA 02110-1301, USA.

*/

#include "config.h"

#if ENABLE(SVG) && ENABLE(FILTERS)

#include "SVGFEOffsetElement.h"

#include "Attr.h"

namespace WebCore {

SVGFEOffsetElement::SVGFEOffsetElement(const QualifiedName& tagName, Document* doc)

    : SVGFilterPrimitiveStandardAttributes(tagName, doc)

{

}

SVGFEOffsetElement::~SVGFEOffsetElement()

{

}

void SVGFEOffsetElement::parseMappedAttribute(Attribute* attr)

{

    const String& value = attr->value();

    if (attr->name() == SVGNames::dxAttr)

        setDxBaseValue(value.toFloat());

    else if (attr->name() == SVGNames::dyAttr)

        setDyBaseValue(value.toFloat());

    else if (attr->name() == SVGNames::inAttr)

        setIn1BaseValue(value);

    else

        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);

}

void SVGFEOffsetElement::synchronizeProperty(const QualifiedName& attrName)

{

    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);

    if (attrName == anyQName()) {

        synchronizeDx();

        synchronizeDy();

        synchronizeIn1();

        return;

    }

    if (attrName == SVGNames::dxAttr)

        synchronizeDx();

    else if (attrName == SVGNames::dyAttr)

        synchronizeDy();

    else if (attrName == SVGNames::inAttr)

        synchronizeIn1();

}

PassRefPtr<FilterEffect> SVGFEOffsetElement::build(SVGFilterBuilder* filterBuilder)

{

    FilterEffect* input1 = filterBuilder->getEffectById(in1());

    if (!input1)

        return 0;

    return FEOffset::create(input1, dx(), dy());

}

}

#endif // ENABLE(SVG)