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SMILTimeContainer.h

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00001 /*
00002  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions
00006  * are met:
00007  * 1. Redistributions of source code must retain the above copyright
00008  *    notice, this list of conditions and the following disclaimer.
00009  * 2. Redistributions in binary form must reproduce the above copyright
00010  *    notice, this list of conditions and the following disclaimer in the
00011  *    documentation and/or other materials provided with the distribution.
00012  *
00013  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
00014  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00015  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00016  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
00017  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00018  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00019  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00020  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
00021  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00022  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00023  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
00024  */
00025 
00026 #ifndef SMILTimeContainer_H
00027 #define SMILTimeContainer_H
00028 
00029 #if ENABLE(SVG)
00030 
00031 #include "PlatformString.h"
00032 #include "SMILTime.h"
00033 #include "StringHash.h"
00034 #include "Timer.h"
00035 #include <wtf/HashSet.h>
00036 #include <wtf/PassRefPtr.h>
00037 #include <wtf/RefCounted.h>
00038 
00039 namespace WebCore {
00040     
00041     class SVGElement;
00042     class SVGSMILElement;
00043     class SVGSVGElement;
00044 
00045     class SMILTimeContainer : public RefCounted<SMILTimeContainer>  {
00046     public:
00047         static PassRefPtr<SMILTimeContainer> create(SVGSVGElement* owner) { return adoptRef(new SMILTimeContainer(owner)); } 
00048     
00049         void schedule(SVGSMILElement*);
00050         void unschedule(SVGSMILElement*);
00051         
00052         SMILTime elapsed() const;
00053 
00054         bool isActive() const;
00055         bool isPaused() const;
00056         
00057         void begin();
00058         void pause();
00059         void resume();
00060         
00061         void setDocumentOrderIndexesDirty() { m_documentOrderIndexesDirty = true; }
00062 
00063     private:
00064         SMILTimeContainer(SVGSVGElement* owner);
00065         
00066         void timerFired(Timer<SMILTimeContainer>*);
00067         void startTimer(SMILTime fireTime, SMILTime minimumDelay = 0);
00068         void updateAnimations(SMILTime elapsed);
00069         
00070         void updateDocumentOrderIndexes();
00071         void sortByPriority(Vector<SVGSMILElement*>& smilElements, SMILTime elapsed);
00072         
00073         typedef pair<SVGElement*, String> ElementAttributePair;
00074         String baseValueFor(ElementAttributePair);
00075         
00076         double m_beginTime;
00077         double m_pauseTime;
00078         double m_accumulatedPauseTime;
00079         
00080         bool m_documentOrderIndexesDirty;
00081         
00082         Timer<SMILTimeContainer> m_timer;
00083 
00084         typedef HashSet<SVGSMILElement*> TimingElementSet;
00085         TimingElementSet m_scheduledAnimations;
00086         
00087         typedef HashMap<ElementAttributePair, String> BaseValueMap;
00088         BaseValueMap m_savedBaseValues;
00089 
00090         SVGSVGElement* m_ownerSVGElement;
00091     };
00092 }
00093 
00094 #endif
00095 #endif

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