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/*
Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
2004, 2005, 2006 Rob Buis <buis@kde.org>
Copyright (C) 2007 Eric Seidel <eric@webkit.org>
Copyright (C) 2008 Apple Inc. All rights reserved.
Copyright (C) 2008 Cameron McCormack <cam@mcc.id.au>
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 SVGAnimationElement_h
#define SVGAnimationElement_h
#if ENABLE(SVG_ANIMATION)
#include "ElementTimeControl.h"
#include "Path.h"
#include "SMILTime.h"
#include "SVGSMILElement.h"
#include "SVGExternalResourcesRequired.h"
#include "SVGStringList.h"
#include "SVGTests.h"
#include "UnitBezier.h"
namespace WebCore {
class ConditionEventListener;
class TimeContainer;
class SVGAnimationElement : public SVGSMILElement,
public SVGTests,
public SVGExternalResourcesRequired,
public ElementTimeControl {
public:
SVGAnimationElement(const QualifiedName&, Document*);
virtual ~SVGAnimationElement();
virtual void parseMappedAttribute(MappedAttribute*);
virtual void attributeChanged(Attribute*, bool preserveDecls);
// SVGAnimationElement
float getStartTime() const;
float getCurrentTime() const;
float getSimpleDuration(ExceptionCode&) const;
// ElementTimeControl
virtual void beginElement();
virtual void beginElementAt(float offset);
virtual void endElement();
virtual void endElementAt(float offset);
static bool attributeIsCSS(const String& attributeName);
protected:
enum CalcMode { CalcModeDiscrete, CalcModeLinear, CalcModePaced, CalcModeSpline };
CalcMode calcMode() const;
enum AttributeType { AttributeTypeCSS, AttributeTypeXML, AttributeTypeAuto };
AttributeType attributeType() const;
String toValue() const;
String byValue() const;
String fromValue() const;
enum AnimationMode { NoAnimation, ToAnimation, ByAnimation, ValuesAnimation, FromToAnimation, FromByAnimation, PathAnimation };
AnimationMode animationMode() const;
virtual bool hasValidTarget() const;
String targetAttributeBaseValue() const;
void setTargetAttributeAnimatedValue(const String&);
bool targetAttributeIsCSS() const;
bool isAdditive() const;
bool isAccumulated() const;
// from SVGSMILElement
virtual void startedActiveInterval();
virtual void updateAnimation(float percent, unsigned repeat, SVGSMILElement* resultElement);
virtual void endedActiveInterval();
private:
virtual bool calculateFromAndToValues(const String& fromString, const String& toString) = 0;
virtual bool calculateFromAndByValues(const String& fromString, const String& byString) = 0;
virtual void calculateAnimatedValue(float percentage, unsigned repeat, SVGSMILElement* resultElement) = 0;
virtual float calculateDistance(const String& /*fromString*/, const String& /*toString*/) { return -1.f; }
virtual Path animationPath() const { return Path(); }
void currentValuesForValuesAnimation(float percent, float& effectivePercent, String& from, String& to) const;
void calculateKeyTimesForCalcModePaced();
float calculatePercentFromKeyPoints(float percent) const;
void currentValuesFromKeyPoints(float percent, float& effectivePercent, String& from, String& to) const;
float calculatePercentForSpline(float percent, unsigned splineIndex) const;
protected:
// SVGExternalResourcesRequired
ANIMATED_PROPERTY_DECLARATIONS(SVGAnimationElement, SVGExternalResourcesRequiredIdentifier,
SVGNames::externalResourcesRequiredAttrString, bool,
ExternalResourcesRequired, externalResourcesRequired)
bool m_animationValid;
Vector<String> m_values;
Vector<float> m_keyTimes;
Vector<float> m_keyPoints;
Vector<UnitBezier> m_keySplines;
String m_lastValuesAnimationFrom;
String m_lastValuesAnimationTo;
};
} // namespace WebCore
#endif // ENABLE(SVG)
#endif // SVGAnimationElement_h
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