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

#ifndef SVGTextContentElement_h
#define SVGTextContentElement_h

#if ENABLE(SVG)
#include "SVGAnimatedLength.h"
#include "SVGAnimatedPropertyMacros.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGLangSpace.h"
#include "SVGStyledElement.h"
#include "SVGTests.h"

namespace WebCore {

    class SVGLength;

    class SVGTextContentElement : public SVGStyledElement,
                                  public SVGTests,
                                  public SVGLangSpace,
                                  public SVGExternalResourcesRequired {
    public:
        enum SVGLengthAdjustType {
            LENGTHADJUST_UNKNOWN            = 0,
            LENGTHADJUST_SPACING            = 1,
            LENGTHADJUST_SPACINGANDGLYPHS   = 2
        };

        unsigned getNumberOfChars() const;
        float getComputedTextLength() const;
        float getSubStringLength(unsigned charnum, unsigned nchars, ExceptionCode&) const;
        FloatPoint getStartPositionOfChar(unsigned charnum, ExceptionCode&) const;
        FloatPoint getEndPositionOfChar(unsigned charnum, ExceptionCode&) const;
        FloatRect getExtentOfChar(unsigned charnum, ExceptionCode&) const;
        float getRotationOfChar(unsigned charnum, ExceptionCode&) const;
        int getCharNumAtPosition(const FloatPoint&) const;
        void selectSubString(unsigned charnum, unsigned nchars, ExceptionCode&) const;

        bool isKnownAttribute(const QualifiedName&);

        static SVGTextContentElement* elementFromRenderer(RenderObject*);

    protected:
        SVGTextContentElement(const QualifiedName&, Document*);

        virtual bool isValid() const { return SVGTests::isValid(); }

        virtual void parseMappedAttribute(Attribute*);
        virtual void svgAttributeChanged(const QualifiedName&);
        virtual void synchronizeProperty(const QualifiedName&);

        virtual bool selfHasRelativeLengths() const;

    private:
        virtual bool isTextContent() const { return true; }

        DECLARE_ANIMATED_PROPERTY_NEW(SVGTextContentElement, SVGNames::textLengthAttr, SVGLength, TextLength, textLength)
        DECLARE_ANIMATED_STATIC_PROPERTY_NEW(SVGTextContentElement, SVGNames::lengthAdjustAttr, int, LengthAdjust, lengthAdjust)

        // SVGExternalResourcesRequired
        DECLARE_ANIMATED_STATIC_PROPERTY_NEW(SVGTextContentElement, SVGNames::externalResourcesRequiredAttr, bool, ExternalResourcesRequired, externalResourcesRequired) 
    };

} // namespace WebCore

#endif // ENABLE(SVG)
#endif