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/*
 * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) 2004, 2005, 2006, 2007, 2010 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 SVGSVGElement_h
#define SVGSVGElement_h

#if ENABLE(SVG)
#include "IntSize.h"
#include "SVGAnimatedLength.h"
#include "SVGAnimatedPropertyMacros.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGFitToViewBox.h"
#include "SVGLangSpace.h"
#include "SVGStyledLocatableElement.h"
#include "SVGTests.h"
#include "SVGZoomAndPan.h"

namespace WebCore {
    class SVGAngle;
    class SVGLength;
    class SVGMatrix;
    class SVGTransform;
    class SVGViewSpec;
    class SVGViewElement;
    class SMILTimeContainer;
    class SVGSVGElement : public SVGStyledLocatableElement,
                          public SVGTests,
                          public SVGLangSpace,
                          public SVGExternalResourcesRequired,
                          public SVGFitToViewBox,
                          public SVGZoomAndPan {
    public:
        static PassRefPtr<SVGSVGElement> create(const QualifiedName&, Document*);

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

        // 'SVGSVGElement' functions
        const AtomicString& contentScriptType() const;
        void setContentScriptType(const AtomicString& type);

        const AtomicString& contentStyleType() const;
        void setContentStyleType(const AtomicString& type);

        FloatRect viewport() const;

        void setContainerSize(const IntSize& containerSize) { m_containerSize = containerSize; m_hasSetContainerSize = true; }
        IntSize containerSize() const { return m_containerSize; }
        bool hasSetContainerSize() const { return m_hasSetContainerSize; }
        int relativeWidthValue() const;
        int relativeHeightValue() const;

        float pixelUnitToMillimeterX() const;
        float pixelUnitToMillimeterY() const;
        float screenPixelToMillimeterX() const;
        float screenPixelToMillimeterY() const;

        bool useCurrentView() const;
        void setUseCurrentView(bool currentView);

        SVGViewSpec* currentView() const;

        float currentScale() const;
        void setCurrentScale(float scale);

        FloatPoint& currentTranslate() { return m_translation; }
        void setCurrentTranslate(const FloatPoint&);

        // Only used from the bindings.
        void updateCurrentTranslate();

        SMILTimeContainer* timeContainer() const { return m_timeContainer.get(); }
        
        void pauseAnimations();
        void unpauseAnimations();
        bool animationsPaused() const;

        float getCurrentTime() const;
        void setCurrentTime(float seconds);

        unsigned suspendRedraw(unsigned maxWaitMilliseconds);
        void unsuspendRedraw(unsigned suspendHandleId);
        void unsuspendRedrawAll();
        void forceRedraw();

        NodeList* getIntersectionList(const FloatRect&, SVGElement* referenceElement);
        NodeList* getEnclosureList(const FloatRect&, SVGElement* referenceElement);
        bool checkIntersection(SVGElement*, const FloatRect&);
        bool checkEnclosure(SVGElement*, const FloatRect&);
        void deselectAll();

        static float createSVGNumber();
        static SVGLength createSVGLength();
        static SVGAngle createSVGAngle();
        static FloatPoint createSVGPoint();
        static SVGMatrix createSVGMatrix();
        static FloatRect createSVGRect();
        static SVGTransform createSVGTransform();
        static SVGTransform createSVGTransformFromMatrix(const SVGMatrix&);

        AffineTransform viewBoxToViewTransform(float viewWidth, float viewHeight) const;

        void inheritViewAttributes(SVGViewElement*);

        bool isOutermostSVG() const;

        Element* getElementById(const AtomicString&) const;

    protected:
        virtual void willMoveToNewOwnerDocument();
        virtual void didMoveToNewOwnerDocument();

    private:
        SVGSVGElement(const QualifiedName&, Document*);
        virtual ~SVGSVGElement();

        virtual bool isSVG() const { return true; }
        
        virtual void parseMappedAttribute(Attribute*);

        virtual bool rendererIsNeeded(RenderStyle* style) { return StyledElement::rendererIsNeeded(style); }
        virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);

        virtual void insertedIntoDocument();
        virtual void removedFromDocument();

        virtual void svgAttributeChanged(const QualifiedName&);
        virtual void synchronizeProperty(const QualifiedName&);

        virtual bool selfHasRelativeLengths() const;

        DECLARE_ANIMATED_PROPERTY_NEW(SVGSVGElement, SVGNames::xAttr, SVGLength, X, x)
        DECLARE_ANIMATED_PROPERTY_NEW(SVGSVGElement, SVGNames::yAttr, SVGLength, Y, y)
        DECLARE_ANIMATED_PROPERTY_NEW(SVGSVGElement, SVGNames::widthAttr, SVGLength, Width, width)
        DECLARE_ANIMATED_PROPERTY_NEW(SVGSVGElement, SVGNames::heightAttr, SVGLength, Height, height)

        // SVGExternalResourcesRequired
        DECLARE_ANIMATED_STATIC_PROPERTY_NEW(SVGSVGElement, SVGNames::externalResourcesRequiredAttr, bool, ExternalResourcesRequired, externalResourcesRequired)

        // SVGFitToViewBox
        DECLARE_ANIMATED_PROPERTY_NEW(SVGSVGElement, SVGNames::viewBoxAttr, FloatRect, ViewBox, viewBox)
        DECLARE_ANIMATED_PROPERTY_NEW(SVGSVGElement, SVGNames::preserveAspectRatioAttr, SVGPreserveAspectRatio, PreserveAspectRatio, preserveAspectRatio)
 
        virtual void documentWillBecomeInactive();
        virtual void documentDidBecomeActive();

        virtual AffineTransform localCoordinateSpaceTransform(SVGLocatable::CTMScope) const;

        bool m_useCurrentView;
        RefPtr<SMILTimeContainer> m_timeContainer;
        FloatPoint m_translation;
        float m_scale;
        mutable OwnPtr<SVGViewSpec> m_viewSpec;
        IntSize m_containerSize;
        bool m_hasSetContainerSize;
    };

} // namespace WebCore

#endif // ENABLE(SVG)
#endif