/*

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

                  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 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);

        void invalidateResourceClients();

        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