/*

 * This file is part of the WebKit project.

 *

 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@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 "RenderSVGTextPath.h"

#include "FloatQuad.h"

#include "RenderBlock.h"

#include "SVGInlineTextBox.h"

#include "SVGPathElement.h"

#include "SVGRootInlineBox.h"

#include "SVGTextPathElement.h"

#include "SVGTransformList.h"

namespace WebCore {

RenderSVGTextPath::RenderSVGTextPath(Node* n)

    : RenderSVGInline(n)

    , m_startOffset(0.0f)

    , m_exactAlignment(true)

    , m_stretchMethod(false)

{

}

Path RenderSVGTextPath::layoutPath() const

{

    SVGTextPathElement* textPathElement = static_cast<SVGTextPathElement*>(node());

        String pathId = SVGURIReference::getTarget(textPathElement->href());

    Element* targetElement = textPathElement->document()->getElementById(pathId);    

    if (!targetElement || !targetElement->hasTagName(SVGNames::pathTag))

        return Path();

    SVGPathElement* pathElement = static_cast<SVGPathElement*>(targetElement);

    Path pathData = pathElement->toPathData();

    // Spec:  The transform attribute on the referenced 'path' element represents a

    // supplemental transformation relative to the current user coordinate system for

    // the current 'text' element, including any adjustments to the current user coordinate

    // system due to a possible transform attribute on the current 'text' element.

    // http://www.w3.org/TR/SVG/text.html#TextPathElement

    pathData.transform(pathElement->animatedLocalTransform());

    return pathData;

}

float RenderSVGTextPath::startOffset() const

{

    return static_cast<SVGTextPathElement*>(node())->startOffset().valueAsPercentage();

}

bool RenderSVGTextPath::exactAlignment() const

{

    return static_cast<SVGTextPathElement*>(node())->spacing() == SVG_TEXTPATH_SPACINGTYPE_EXACT;

}

bool RenderSVGTextPath::stretchMethod() const

{

    return static_cast<SVGTextPathElement*>(node())->method() == SVG_TEXTPATH_METHODTYPE_STRETCH;

}

}

#endif // ENABLE(SVG)