/*

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

                  2004, 2005, 2006 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 "SVGFEBlendElement.h"

#include "Attribute.h"

namespace WebCore {

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

    : SVGFilterPrimitiveStandardAttributes(tagName, doc)

    , m_mode(FEBLEND_MODE_NORMAL)

{

}

SVGFEBlendElement::~SVGFEBlendElement()

{

}

void SVGFEBlendElement::parseMappedAttribute(Attribute* attr)

{

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

    if (attr->name() == SVGNames::modeAttr) {

        if (value == "normal")

            setModeBaseValue(FEBLEND_MODE_NORMAL);

        else if (value == "multiply")

            setModeBaseValue(FEBLEND_MODE_MULTIPLY);

        else if (value == "screen")

            setModeBaseValue(FEBLEND_MODE_SCREEN);

        else if (value == "darken")

            setModeBaseValue(FEBLEND_MODE_DARKEN);

        else if (value == "lighten")

            setModeBaseValue(FEBLEND_MODE_LIGHTEN);

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

        setIn1BaseValue(value);

    else if (attr->name() == SVGNames::in2Attr)

        setIn2BaseValue(value);

    else

        SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr);

}

void SVGFEBlendElement::synchronizeProperty(const QualifiedName& attrName)

{

    SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName);

    if (attrName == anyQName()) {

        synchronizeMode();

        synchronizeIn1();

        synchronizeIn2();

        return;

    }

    if (attrName == SVGNames::modeAttr)

        synchronizeMode();

    else if (attrName == SVGNames::inAttr)

        synchronizeIn1();

    else if (attrName == SVGNames::in2Attr)

        synchronizeIn2();

}

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

{

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

    FilterEffect* input2 = filterBuilder->getEffectById(in2());

    if (!input1 || !input2)

        return 0;

    return FEBlend::create(input1, input2, static_cast<BlendModeType>(mode()));

}

}

#endif // ENABLE(SVG)

// vim:ts=4:noet