/*

* Copyright (c) 2002 - 2007 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:  A view displaying basic playback state and feature

*

*/

#ifndef TESTPLAYBACKVIEW_H

#define TESTPLAYBACKVIEW_H

/* INCLUDES */

#include "testBaseview.h"

#include "testplaybackviewobserver.h"

/* DATA TYPE */

_LIT(KTxtTestPlaybackView, "TestPlaybackView");

/* FORWARD DECLARATION*/

class MTestPlaybackViewObserver;

/**

 *  UI of playback test

 *

 *  @lib testplaybackutility.lib

 *  @since S60 v3.0

 */

class CTestPlaybackView : public CTestBaseView

    {

public:

    IMPORT_C static CTestPlaybackView* NewL(CConsoleMain* aConsoleMain,

                                            CTestBaseView* aParent,

                                            const TDesC& aName,

                                            CStifLogger* aLogger);

    IMPORT_C virtual ~CTestPlaybackView();

    /**

     * Add observer

     * @since S60 v3.0

     * @param aObs an observer to add

     */

    IMPORT_C void AddObserver(MTestPlaybackViewObserver* aObs);

     /**

    * Update current index in the playlist

    * @param aIndex current index

    * @param aTotalItem total index

    */

    IMPORT_C void UpdateItemIndex(TInt aIndex, TInt aTotalItem);

    /**

    * Update position in the song

    * @param aPosition position

    * @param aDuration duration

    */

    IMPORT_C void UpdateProgress(TInt aPosition, TInt aDuration);

    /**

    * Update volume

    * @param aVolume current volume

    * @param @aMaxVolume maximum volume

    */

    IMPORT_C void UpdateVolume(TInt aVolume, TInt aMaxVolume);

    /**

    * Update artist and song name

    * @param aArtist artist name

    * @param aSongName song name

    */

    IMPORT_C void UpdateSongInfo(const TDesC& aArtist, const TDesC& aSongName);

    /**

    * Handles state changes in playbackutility

    */

    IMPORT_C void StateChanged(TTestPlaybackState aState);

// from base class CTestBaseView

    /**

     * Initialization of a view before first time activation

     */

    void InitializeViewL();

    /**

     * Cleanup the child view before deactivate/destroy view

     */

    void CleanupViewL();

    /**

     * Display this view 

     */

    void DisplayViewL();

    /** 

     * Process keypresses on this view - called by ConsoleMain

     * @param aSelection, key pressed

     * @param aContinue, whether to continue or stop scheduler

     */

    void SelectL( TKeyCode aSelection, TBool& aContinue );

    /** 

     * Update display from timer - called by ConsoleMain

     */

    void TimerUpdate();

protected:  //protected class

    class TPlaybackStatus

        {

    public:

        TBool iBackwardSeek;

        TBool iForwardSeek;

        TBool iPlaying;

        TBool iPause;

        TInt iVolume;

        TInt iMaxVolume;

        TInt iProgressPos;

        TInt iProgressDur;

        TInt iItemIndex;

        TInt iMaxItems;

        };

private:

    CTestPlaybackView(CConsoleMain* aConsoleMain,

                      CTestBaseView* aParent,

                      const TDesC& aName,

                      CStifLogger* aLogger);

    void ConstructL();

    /**

    * The following functions redraw the playback view

    * base one iCurrentStatus except song info

    */

    void RedrawIndex();

    void RedrawProgress();

    void RedrawVolume();

    void RedrawPlayerStatue();

private:    //data

    /**

     * Screen size

     */

    TSize iDisplaySize;

    /**

     * Player status

     */

    TPlaybackStatus iCurrentStatus;

    /**

     * Send user command to View observer

     * Not own.

     */

    MTestPlaybackViewObserver* iTestPlaybackViewObs;

    /**

     * Logger purpose

     * Not own.

     */

    CStifLogger* iLogger;

    };

#endif      //TESTPLAYBACKVIEW_H