/*

    Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>

                  2004, 2005, 2006, 2007 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)

#include "SVGRectElement.h"

#include "Attribute.h"

#include "RenderPath.h"

#include "RenderSVGResource.h"

#include "SVGLength.h"

#include "SVGNames.h"

namespace WebCore {

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

    : SVGStyledTransformableElement(tagName, doc)

    , SVGTests()

    , SVGLangSpace()

    , SVGExternalResourcesRequired()

    , m_x(LengthModeWidth)

    , m_y(LengthModeHeight)

    , m_width(LengthModeWidth)

    , m_height(LengthModeHeight)

    , m_rx(LengthModeWidth)

    , m_ry(LengthModeHeight)

{

}

SVGRectElement::~SVGRectElement()

{

}

void SVGRectElement::parseMappedAttribute(Attribute* attr)

{

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

        setXBaseValue(SVGLength(LengthModeWidth, attr->value()));

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

        setYBaseValue(SVGLength(LengthModeHeight, attr->value()));

    else if (attr->name() == SVGNames::rxAttr) {

        setRxBaseValue(SVGLength(LengthModeWidth, attr->value()));

        if (rxBaseValue().value(this) < 0.0)

            document()->accessSVGExtensions()->reportError("A negative value for rect <rx> is not allowed");

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

        setRyBaseValue(SVGLength(LengthModeHeight, attr->value()));

        if (ryBaseValue().value(this) < 0.0)

            document()->accessSVGExtensions()->reportError("A negative value for rect <ry> is not allowed");

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

        setWidthBaseValue(SVGLength(LengthModeWidth, attr->value()));

        if (widthBaseValue().value(this) < 0.0)

            document()->accessSVGExtensions()->reportError("A negative value for rect <width> is not allowed");

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

        setHeightBaseValue(SVGLength(LengthModeHeight, attr->value()));

        if (heightBaseValue().value(this) < 0.0)

            document()->accessSVGExtensions()->reportError("A negative value for rect <height> is not allowed");

    } else {

        if (SVGTests::parseMappedAttribute(attr))

            return;

        if (SVGLangSpace::parseMappedAttribute(attr))

            return;

        if (SVGExternalResourcesRequired::parseMappedAttribute(attr))

            return;

        SVGStyledTransformableElement::parseMappedAttribute(attr);

    }

}

void SVGRectElement::svgAttributeChanged(const QualifiedName& attrName)

{

    SVGStyledTransformableElement::svgAttributeChanged(attrName);

    bool isLengthAttribute = attrName == SVGNames::xAttr

                          || attrName == SVGNames::yAttr

                          || attrName == SVGNames::widthAttr

                          || attrName == SVGNames::heightAttr

                          || attrName == SVGNames::rxAttr

                          || attrName == SVGNames::ryAttr;

    if (isLengthAttribute)

        updateRelativeLengthsInformation();

    RenderPath* renderer = static_cast<RenderPath*>(this->renderer());

    if (!renderer)

        return;

    if (SVGStyledTransformableElement::isKnownAttribute(attrName)) {

        renderer->setNeedsTransformUpdate();

        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);

        return;

    }

    if (isLengthAttribute) {

        renderer->setNeedsPathUpdate();

        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);

        return;

    }

    if (SVGTests::isKnownAttribute(attrName)

        || SVGLangSpace::isKnownAttribute(attrName)

        || SVGExternalResourcesRequired::isKnownAttribute(attrName))

        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);

}

void SVGRectElement::synchronizeProperty(const QualifiedName& attrName)

{

    SVGStyledTransformableElement::synchronizeProperty(attrName);

    if (attrName == anyQName()) {

        synchronizeX();

        synchronizeY();

        synchronizeWidth();

        synchronizeHeight();

        synchronizeRx();

        synchronizeRy();

        synchronizeExternalResourcesRequired();

        return;

    }

    if (attrName == SVGNames::xAttr)

        synchronizeX();

    else if (attrName == SVGNames::yAttr)

        synchronizeY();

    else if (attrName == SVGNames::widthAttr)

        synchronizeWidth();

    else if (attrName == SVGNames::heightAttr)

        synchronizeHeight();

    else if (attrName == SVGNames::rxAttr)

        synchronizeRx();

    else if (attrName == SVGNames::ryAttr)

        synchronizeRy();

    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))

        synchronizeExternalResourcesRequired();

}

Path SVGRectElement::toPathData() const

{

    FloatRect rect(x().value(this), y().value(this), width().value(this), height().value(this));

    bool hasRx = hasAttribute(SVGNames::rxAttr);

    bool hasRy = hasAttribute(SVGNames::ryAttr);

    if (hasRx || hasRy) {

        float _rx = hasRx ? rx().value(this) : ry().value(this);

        float _ry = hasRy ? ry().value(this) : rx().value(this);

        return Path::createRoundedRectangle(rect, FloatSize(_rx, _ry));

    }

    return Path::createRectangle(rect);

}

bool SVGRectElement::selfHasRelativeLengths() const

{

    return x().isRelative()

        || y().isRelative()

        || width().isRelative()

        || height().isRelative()

        || rx().isRelative()

        || ry().isRelative();

}

}

#endif // ENABLE(SVG)