/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "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:

* Ixonos Plc

*

* Description:  

*

*/

#ifndef VEICUTAUDIOVIEW_H

#define VEICUTAUDIOVIEW_H

#include <aknview.h>

#include <VedMovie.h>

#include <VedCommon.h>

#include <utility.h>

#include "VeiCutAudioContainer.h" 

class CVeiCutAudioContainer;

class CAknTitlePane;

class CAknNavigationDecorator;

class CAknNavigationControlContainer;

class CPeriodic;

class CMdaAudioRecorderUtility;

class CMdaAudioType;

class TMdaClipLocation;

class CVeiErrorUI;

/**

 *  CVeiCutAudioView view class.

 * 

 */

class CVeiCutAudioView: public CAknView

{

public:

    // Constructors and destructor

    /**

     * Two-phased constructor.

     */

    static CVeiCutAudioView* NewL();

    /**

     * Two-phased constructor.

     */

    static CVeiCutAudioView* NewLC();

    /**

     * Destructor.

     */

    virtual ~CVeiCutAudioView();

protected:

    /** 

     * From CAknView, HandleForegroundEventL( TBool aForeground )

     *

     * @param aForeground

     */

    virtual void HandleForegroundEventL( TBool aForeground );

private:

    // From CAknView

    /**

     * From CAknView, DynInitMenuPaneL.

     *

     * @param aResourceId  resource id

     * @param aMenuPane  menu pane

     */

    void DynInitMenuPaneL( TInt aResourceId, CEikMenuPane* aMenuPane );

public:

    /**

     * From CAknView, Id.

     *

     * @return view id.

     */

    TUid Id()const;

    CVeiCutAudioView();

    /**

     * Default constructor.

     */

    void ConstructL();

    /**

     * From CAknView, HandleCommandL(TInt aCommand);

     *

     * @param aCommand

     */

    void HandleCommandL( TInt aCommand );

    /**

     * Draws the time label navi.

     */

    void DrawTimeNaviL();

    /**

     * Clears the in and/or out points.

     *

     * @param aClearIn  whether to clear the in point

     * @param aClearOut  whether to clear the out point

     */

    void ClearInOutL( TBool aClearIn, TBool aClearOut );

    /**

     * Sets the movie and index

     *

     * @param aVideoClip	movie name

     * @param aIndex		index of the video clip in movie

     */

    void SetVideoClipAndIndex( CVedMovie& aVideoClip, TInt aIndex );

    /**

     * Sets the volume

     *

     * @param aVolume	Volume level.

     */

    void SetVolume( TInt aVolume );

    /**

     * Returns the cut out time.

     *

     * @return cut out time

     */

    TUint OutPointTime();

    /**

     * Returns the  cut in time.

     *

     * @return  cut in time

     */

    TUint InPointTime();

    /**

     * Changes the CBA (command button array) according to the edit

     * state.

     *

     * @param aState  current state

     */

    void UpdateCBAL( TInt aState );

    /**

     * Updates the time label navi. This method is called by the

     * static callback function.

     */

    void UpdateTimeL();

    /**

     * Starts the navi pane update, that is, the periodic timer.	

     */

    void StartNaviPaneUpdateL();

    /**

     * Stops the navi pane update.

     */

    void StopNaviPaneUpdateL();

    /**

     * Adjusts the volume up.

     */

    void VolumeUpL();

    /**

     * Adjusts the volume down.

     */

    void VolumeDownL();

    /**

     * Mutes the volume.

     */

    void VolumeMuteL();

    /**

     * Static callback function for hiding the volume indicator.

     *

     * @param aPtr  self pointer

     *

     * @return dummy value

     */

    static TInt HideVolumeCallbackL( TAny* aPtr );

    /**

     * Hides the volume indicator.

     */

    void HideVolume();

    /**

     * Gets visualization values.

     */

    void GetAudioVisualizationL();

    /**

     * Cancels visualization process.

     */

    void CancelVisualizationL();

    /** Possible mark states */

    enum TMarkState

    {

        EMarkStateIn,

        EMarkStateOut,

        EMarkStateInOut

    };

    /**

     *  

     */

    void HandleStatusPaneSizeChange();

    /** Callback function */

    static TInt AsyncOpenAudioFile( TAny* aThis );

    /** 

     * Handles a change to the control's resources.

     */

    void HandleResourceChange( TInt aType );

    /**

    * Moves the start or end mark when user drags them.

    * 

    * @param aPosition	position where the mark is moved to

    * @param aMarkType  EStartMark or EEndMark

    * @return -

    */               

    void MoveStartOrEndMarkL( TTimeIntervalMicroSeconds aPosition, CVeiCutAudioContainer::TCutMark aMarkType );

private:

    /**

     * Starts playing the clip. If the clip is paused, resumes 

     * playing.

     */

    void PlayPreviewL();

    /**

     * Pauses the playback.

     */

    void PausePreviewL();

    /**

     * Plays the marked section of the clip.

     */

    void PlayMarkedL();

    /**

     * Marks the in point to the current point.

     */

    void MarkInL();

    /**

     * Marks the out point to the current point.

     */

    void MarkOutL();

    /**

     * Creates the time label navi. 

     *

     * @return  time label navi 

     */

    CAknNavigationDecorator* CreateTimeLabelNaviL();

    /**

     * Static callback function for the periodical timer that updates

     * the time navi.

     *

     * @param aPtr  self pointer

     *

     * @return dummy value

     */

    static TInt UpdateTimeCallbackL( TAny* aPtr );

    /**

     * start processing the input file

     */

    void OpenAudioFileL();

private:

    /**

     * From AknView, DoActivateL.

     * 

     * @param aPrevViewId  previous view id

     * @param aCustomMessageId  custom message id

     * @param aCustomMessage  custom message

     */

    void DoActivateL( const TVwsViewId& aPrevViewId, TUid aCustomMessageId,

                     const TDesC8& aCustomMessage );

    /**

     * From AknView, DoDeactivate

     */

    void DoDeactivate();

private:

    // Data

    /* cut video container	*/

    CVeiCutAudioContainer* iContainer;

    /* index of the video clip in the movie	*/

    TUint iIndex;

    /* movie */

    CVedMovie* iMovie;

    /** Time updater. */

    CPeriodic* iTimeUpdater;

    /** Pointer to the navi pane. */

    CAknNavigationControlContainer* iNaviPane;

    /** Time navi. */

    CAknNavigationDecorator* iTimeNavi;

    /** Volume hiding timer. */

    CPeriodic* iVolumeHider;

    /** Volume navi decorator. */

    CAknNavigationDecorator* iVolumeNavi;

    /** Popup menu state flag */

    TBool iPopupMenuOpened;

    /** Audio muted flag */

    TBool iAudioMuted;

    /** play marked flag */

    TBool iPlayMarked;

    /** current mark state */

    TMarkState iMarkState;

    /** Error number */

    TInt iErrorNmb;

    TTimeIntervalMicroSeconds iOriginalCutInTime;

    /** Error UI */

    CVeiErrorUI* iErrorUI;

    /** Callback utility */

    CAsyncCallBack* iCallBack;

};

#endif 

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