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      1 /*
      2  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) 2008 Apple Inc. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  */
     21 
     22 #ifndef SVGAnimateElement_h
     23 #define SVGAnimateElement_h
     24 
     25 #if ENABLE(SVG) && ENABLE(SVG_ANIMATION)
     26 
     27 #include "Color.h"
     28 #include "SVGAnimationElement.h"
     29 #include "SVGPathByteStream.h"
     30 #include "SVGPointList.h"
     31 #include <wtf/OwnPtr.h>
     32 
     33 namespace WebCore {
     34 
     35 class SVGPathSegList;
     36 
     37 class SVGAnimateElement : public SVGAnimationElement {
     38 public:
     39     static PassRefPtr<SVGAnimateElement> create(const QualifiedName&, Document*);
     40 
     41     virtual ~SVGAnimateElement();
     42 
     43 protected:
     44     SVGAnimateElement(const QualifiedName&, Document*);
     45 
     46     virtual void resetToBaseValue(const String&);
     47     virtual bool calculateFromAndToValues(const String& fromString, const String& toString);
     48     virtual bool calculateFromAndByValues(const String& fromString, const String& byString);
     49     virtual void calculateAnimatedValue(float percentage, unsigned repeat, SVGSMILElement* resultElement);
     50     virtual void applyResultsToTarget();
     51     virtual float calculateDistance(const String& fromString, const String& toString);
     52 
     53 private:
     54     // If we have 'currentColor' or 'inherit' as animation value, we need to grab the value during the animation
     55     // since the value can be animated itself.
     56     enum AnimatedPropertyValueType {
     57         RegularPropertyValue,
     58         CurrentColorValue,
     59         InheritValue
     60     };
     61 
     62     virtual bool hasValidAttributeType() const;
     63     AnimatedAttributeType determineAnimatedAttributeType(SVGElement*) const;
     64     AnimatedAttributeType m_animatedAttributeType;
     65 
     66     AnimatedPropertyValueType m_fromPropertyValueType;
     67     AnimatedPropertyValueType m_toPropertyValueType;
     68     double m_fromNumber;
     69     double m_toNumber;
     70     double m_animatedNumber;
     71     String m_numberUnit;
     72     Color m_fromColor;
     73     Color m_toColor;
     74     Color m_animatedColor;
     75     String m_fromString;
     76     String m_toString;
     77     String m_animatedString;
     78     OwnPtr<SVGPathByteStream> m_fromPath;
     79     OwnPtr<SVGPathByteStream> m_toPath;
     80     OwnPtr<SVGPathByteStream> m_animatedPath;
     81     SVGPathByteStream* m_animatedPathPointer;
     82     SVGPointList m_fromPoints;
     83     SVGPointList m_toPoints;
     84     SVGPointList m_animatedPoints;
     85 };
     86 
     87 } // namespace WebCore
     88 
     89 #endif // ENABLE(SVG)
     90 #endif // SVGAnimateElement_h
     91 
     92 // vim:ts=4:noet
     93