// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
//

#ifndef __ANIMATIONTICKER_H__
#define __ANIMATIONTICKER_H__

#include <e32base.h>

class MAnimationTickee;

/** This provides timing information for animators.

You do not need to instantiate an object of this type unless you are writing a
new animation type.

@see MAnimationTickee
@see CAnimationTls
@publishedAll
@released*/
NONSHARABLE_CLASS(CAnimationTicker) : public CBase
	{
public:
    IMPORT_C static CAnimationTicker* NewL(TTimeIntervalMicroSeconds32 aTickLength = 100000);
    IMPORT_C ~CAnimationTicker();
    
	IMPORT_C TInt Add(MAnimationTickee* aTickee);
	IMPORT_C TInt Remove(MAnimationTickee* aTickee);
	IMPORT_C void Freeze();
	IMPORT_C void Unfreeze();
	
	/** This provides the resolution of the timer.
	@return iTickLength The resolution of the timer */
	inline const TTimeIntervalMicroSeconds32& TickLength() const { return iTickLength; }
	void OnTick();
protected:
	IMPORT_C virtual void CAnimationTicker_Reserved1();
	IMPORT_C virtual void CAnimationTicker_Reserved2();
private:
	TInt iCAnimationTicker_Reserved;
private:
	CAnimationTicker();
	void ConstructL(TTimeIntervalMicroSeconds32 aTickLength);
	void StartTickingL();
	void StopTicking();
private:
	TInt iFreeze;
	TTimeIntervalMicroSeconds32 iTickLength;
	CPeriodic* iPeriodic;
	RPointerArray<MAnimationTickee> iTickees;
	};

#endif //__ANIMATIONTICKER_H__