/*

* Copyright (c) 2002-2009 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:  This class is used for playing animated images.

*

*/

#ifndef CMMAANIMATIONPLAYER_H

#define CMMAANIMATIONPLAYER_H

//  INCLUDES

#include <w32std.h>

#include "cmmaplayer.h"

#include "mmmaguiplayer.h"

#include "mmmasnapshot.h"

#include "rmmatempfile.h"

#include "MIHLViewerObserver.h"

#include "MIHLImageViewer.h"

// FORWARD DECLARATIONS

class CMMAEventSource;

class CMMAAnimationWindow;

class MIHLFileImage;

class MIHLBitmap;

class CFbsBitmap;

// CONSTANTS

_LIT(KMMAVideoPlayer, "VideoPlayer");

NONSHARABLE_CLASS(MMMAAnimationObserver)

{

public: // new methods

    /**

     * Listener for animation advancing

     * @param aFrame current frame

     * @param aMediaTime current media time

     */

    virtual void AnimationAdvancedL(TInt aFrame, TInt64 aMediaTime) = 0;

};

//  CLASS DECLARATION

/**

*   This class is used for playing animated images.

*

*/

NONSHARABLE_CLASS(CMMAAnimationPlayer): public CMMAPlayer,

        public MMMAGuiPlayer,

        public MMMASnapshot,

        public MIHLViewerObserver

{

public: // Construction

    static CMMAAnimationPlayer* NewLC();

    static CMMAAnimationPlayer* NewLC(const TDesC& aFileName);

    //   Destructor

    ~CMMAAnimationPlayer();

protected:

    //   C++ constructor

    CMMAAnimationPlayer();

    void ConstructL();

public: // from CMMAPlayer

    void SetPlayerListenerObjectL(jobject aListenerObject,

                                  JNIEnv* aJni,

                                  MMMAEventPoster* aEventPoster);

    void RealizeL();

    void PrefetchL();

    void StopL(TBool aPostEvent);

    void DeallocateL();

    void GetDuration(TInt64* aDuration);

    const TDesC& Type();

    void SetMediaTimeL(TInt64* aTime);

    void GetMediaTime(TInt64* aMediaTime);

public: // from CMMAPlayer/MMMASourceStreamListener

    void ReadCompletedL(TInt aStatus, const TDesC8& aData);

public: // new methods

    void PrefetchFileL();

    void PrefetchDataL(const TDesC8& aData);

    /**

     * Check whether this player is playing from a file locator

     * @return ETrue if is a file player, EFalse otherwise

     */

    TBool IsFilePlayer();

    // Finds current frame for given media time

    TInt FindFrame(TInt64 aTime);

    // Calculates media time for specified frame

    TInt64 MediaTimeForFrame(TInt aFrameIndex);

    // Frame duration of specified frame

    TTimeIntervalMicroSeconds32 FrameDuration(TInt aFrameIndex);

    MIHLImageViewer* Viewer();

    // Setter for frame listener, used for stop time control

    void SetAnimationObserver(MMMAAnimationObserver* aAnimationObserver);

    /**

     * @param aRate Rate to set in "milli-percentage"..

     * @return Actual rate set.

     */

    TInt SetRateL(TInt aRate);

    /**

     * @return The current playback rate in "milli-percentage".

     */

    TInt RateL();

private: // new methods

    void PrepareViewerL();

    void ProcessCurrentFrameL();

public: // From MMMAGuiPlayer

    void SetDisplayL(MMMADisplay* aDisplay);

    TSize SourceSize();

    void NotifyWithStringEvent(CMMAPlayerEvent::TEventType aEventType,

                               const TDesC& aStringEventData);

    MMMASnapshot* SnapshoterL();

public: // From MMMASnapshot

    MMMASnapshot::TEncoding TakeSnapshotL(TRequestStatus* aStatus,

                                          const TSize& aSize,

                                          const CMMAImageSettings& aSettings);

    CFbsBitmap* SnapshotBitmap();

    HBufC8* SnapshotEncoded();

public: // From MIHLViewerObserver

    virtual void ViewerBitmapChangedL();

    virtual void ViewerError(TInt aError);

private: // Data

    /**

     * Display to draw animation.

     */

    MMMADisplay* iDisplay;

    /**

     * Window to draw animation.

     */

    CMMAAnimationWindow* iWindow;

    /**

     * Dimensions of animation.

     */

    TSize iSourceSize;

    /**

     * Animated image to play. Owned.

     */

    MIHLFileImage* iImage;

    /**

     * Destination bitmap for animation. Owned.

     */

    MIHLBitmap* iBitmap;

    /**

     * Animation viewer. Owned.

     */

    MIHLImageViewer* iViewer;

    /**

     * Bitmap for snapshot. Ownership is transferred for

     * snapshot requester, but owned if not null.

     */

    CFbsBitmap* iSnapshotBitmap;

    /**

     * File system session for IHL interfacing

     */

    RFs iFSession;

    /**

     * Animation frame count. Held locally for optimization.

     */

    TInt iFrameCount;

    /**

     * Possible file name, owned

     */

    HBufC* iFileName;

    /**

     * Current Media Time

     */

    TInt64 iMediaTime;

    /**

     * Animation listener

     */

    MMMAAnimationObserver* iAnimationObserver;

    /**

     * Current rate

     */

    TInt iCurrentRate;

    /**

     * Hold the information whether playback should be started

     * from beginning on next start or from current position

     */

    TBool iEndReached;

    /**

     * EndOfMedia will be delivered when next frame arrives if

     * iSendEndOfMediaOnNextFrame is true

     */

    TBool iSendEndOfMediaOnNextFrame;

};

#endif // CMMAANIMATIONPLAYER_H