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/*
 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) 2004, 2005, 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.
 */

#ifndef SVGStyledElement_h
#define SVGStyledElement_h

#if ENABLE(SVG)
#include "HTMLNames.h"
#include "SVGElement.h"
#include "SVGLocatable.h"
#include "SVGStylable.h"
#include <wtf/HashSet.h>

namespace WebCore {

    void mapAttributeToCSSProperty(HashMap<AtomicStringImpl*, int>* propertyNameToIdMap, const QualifiedName& attrName);

    class SVGStyledElement : public SVGElement,
                             public SVGStylable {
    public:
        SVGStyledElement(const QualifiedName&, Document*);
        virtual ~SVGStyledElement();

        virtual String title() const;

        bool hasRelativeLengths() const { return !m_elementsWithRelativeLengths.isEmpty(); }

        virtual bool isStyled() const { return true; }
        virtual bool supportsMarkers() const { return false; }

        virtual PassRefPtr<CSSValue> getPresentationAttribute(const String& name);
        virtual CSSStyleDeclaration* style() { return StyledElement::style(); }

        bool isKnownAttribute(const QualifiedName&);

        virtual bool rendererIsNeeded(RenderStyle*);

        virtual bool mapToEntry(const QualifiedName&, MappedAttributeEntry&) const;
        virtual void parseMappedAttribute(Attribute*);
        virtual void svgAttributeChanged(const QualifiedName&);
        virtual void synchronizeProperty(const QualifiedName&);

        virtual void attach();
        virtual void insertedIntoDocument();
        virtual void removedFromDocument();
        virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);

        // Centralized place to force a manual style resolution. Hacky but needed for now.
        PassRefPtr<RenderStyle> resolveStyle(RenderStyle* parentStyle);

        bool instanceUpdatesBlocked() const;
        void setInstanceUpdatesBlocked(bool);

        virtual AffineTransform localCoordinateSpaceTransform(SVGLocatable::CTMScope) const;

    protected: 
        static int cssPropertyIdForSVGAttributeName(const QualifiedName&);
        void updateRelativeLengthsInformation() { updateRelativeLengthsInformation(selfHasRelativeLengths(), this); }
        void updateRelativeLengthsInformation(bool hasRelativeLengths, SVGStyledElement*);

        virtual bool selfHasRelativeLengths() const { return false; }

    private:
        HashSet<SVGStyledElement*> m_elementsWithRelativeLengths;
        DECLARE_ANIMATED_PROPERTY(SVGStyledElement, HTMLNames::classAttr, String, ClassName, className)
    };

} // namespace WebCore

#endif // ENABLE(SVG)
#endif // SVGStyledElement