/*

* Copyright (c) 2005 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:  Class for displaying icons in viewfinder view

*

*/

#ifndef MUSUILEVELINDICATOR_H

#define MUSUILEVELINDICATOR_H

#include "musuidefinitions.h"

#include "musuiactivetimerobserver.h"

// SYSTEM

#include <AknsControlContext.h>

#include <AknUtils.h>

#include <coecntrl.h>

class MAknsSkinInstance;

class CGulIcon;

class MMusUiLevelIndicatorObserver;

class CAknSlider;

/** 

* Class for displaying icons in viewfinder view

*/

class CMusUiLevelIndicator : public CCoeControl,

                             public MCoeControlObserver,

                             public MMusUiActiveTimerObserver

    {

    public: // Constructors and destructor

        /**

        * Symbian OS two-phased constructor.

        * @param aController reference to CCcorController

        */

        static CMusUiLevelIndicator* NewL(

                                TAknOrientation aLayout, 

        						TInt aMinLevel, 

        						TInt aMaxLevel, 

                                CCoeControl* aParent,

                                const TRect& aRect,

        						MMusUiLevelIndicatorObserver* aObserver );

        /**

        * Symbian OS two-phased constructor.

        * @param aController reference to CCcorController

        */

        static CMusUiLevelIndicator* NewLC(

                                TAknOrientation aLayout,

        						TInt aMinLevel, 

        						TInt aMaxLevel, 

                                CCoeControl* aParent,

                                const TRect& aRect,

        						MMusUiLevelIndicatorObserver* aObserver );

        /**

        * Destructor.

        */

        ~CMusUiLevelIndicator();

    public: // New functions

		/**

		*

		*/

		void SetLevelL( TMusUiIndicatorType aType, 

		                TInt aLevel, 

		                TBool aUseTimer );

		/**

		*

		*/

		TInt GetLevel(TMusUiIndicatorType aType);

		/**

		*

		*/

		void SetRange( TInt aMinLevel, TInt aMaxLevel, TBool aUseTimer);

		/**

		*

		*/

		void SetIndicatorType( TMusUiIndicatorType aType );

		/**

		*

		*/

		TMusUiIndicatorType GetIndicatorType();

	private: // From CCoeControl

	    /**

	     * Handles the size change events.

	     *

	     */

	    virtual void SizeChanged();

		virtual void Draw(const TRect& aRect) const;

        virtual TInt CountComponentControls() const;

        virtual CCoeControl* ComponentControl( TInt aIndex ) const;

        virtual void HandleResourceChange( TInt aType );

    private: // From CCoeControlObserver

        virtual void HandleControlEventL( CCoeControl* aControl,

                                          TCoeEvent aEventType );

    private: // From MMusUiActiveTimerObserver    

        virtual void TimerComplete( CMusUiActiveTimer* aTimer );

    private: // Constructors and destructor

        /**

        * C++ constructor

        */

        CMusUiLevelIndicator( TInt aMinLevel, 

        					  TInt aMaxLevel, 

        					  MMusUiLevelIndicatorObserver* aObserver );

        /**

        * Symbian 2nd phase constructor.

        */

        void ConstructL( TAknOrientation aLayout, 

                         CCoeControl* aParent,

                         const TRect& aRect );

    private: // HELPERS

        void  ConstructImageL( CEikImage* aImage,

                               MAknsSkinInstance* aSkin,

                               const TAknsItemID& aId,

                               TInt aBitmapId,

                               TInt aMaskId,

                               TParse aParse );

        /**

        * Callback for disable level indicator.

        * @since 2.8

        * @return KErrNone

        */

        //static TInt DisableLevelIndicator( TAny* aThis );

		//void DisableTimer();        

		//void EnableTimer();

    private: //data

        TRect iParentRect;

        TRect iViewfinderRect;

		TInt iMinLevel;

		TInt iMaxLevel;

		TInt iZoomLevel;

		TInt iBrightnessLevel;

		TInt iDurationLevel;

        CMusUiActiveTimer* iDisableLevelTimer;       

        TMusUiIndicatorType iIndicatorType;

        CAknSlider* iSlider;

        CMusUiActiveTimer* iSliderEventTimer;

        /**

        * NOT OWN!!!

        */

		MMusUiLevelIndicatorObserver* iObserver;

    };

#endif

// End of File