/*

* Copyright (c) 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:  Navigation arrows used to replace the navipane.

*

*/

#ifndef CMRNAVIARROW_H_

#define CMRNAVIARROW_H_

#include <coecntrl.h>

class CGulIcon;

class CAknButton;

class MESMRNaviArrowEventObserver;

NONSHARABLE_CLASS( CMRNaviArrow ) : 

        public CCoeControl

    {

public:

	enum TArrowType {

		EMRArrowLeft,

		EMRArrowRight

		};

public:

    /**

     * Two-phased constructor.

     */

	static CMRNaviArrow* NewL( const CCoeControl* aParent, TArrowType aType,

                               MESMRNaviArrowEventObserver* aObserver,

                               TSize aIconSize );

    /**

     * Destructor.

     */

    virtual ~CMRNaviArrow();

private:

    /**

     * Default c++ constuctor

     */

    CMRNaviArrow( MESMRNaviArrowEventObserver* aObserver, TArrowType aType, TSize aIconSize );

    /**

     * Second phase constructor

     */

    void ConstructL( const CCoeControl* aParent );

public: // From CCoeControl

    TInt CountComponentControls() const;

    CCoeControl* ComponentControl( TInt aInd ) const;

    void SizeChanged();

    void HandlePointerEventL(

            const TPointerEvent &aPointerEvent );

    void Draw(const TRect& aRect) const;

public:

    /**

     * Set the navi arrow's visibility.

     * @param aVisible  Indicate if the arrow visible

     */

    void SetNaviArrowStatus( TBool aVisible );

private:

    /**

     * Init the navi arrow buttons.

     */

    void InitNaviArrowsL();

    /**

     * Create a semi-transparent Icon.

     * @param aBitMap  The bitmap source

     * @param aBitMapMask The bitmap mask source

     */

    CGulIcon* CreateSemiTransparentIconL(  CFbsBitmap* aBitMap, 

                                      CFbsBitmap* aBitMapMask);

private:

    /// Own: Left arrow button

    CAknButton* iArrow;

    /// Ref: Navi arrow event observer

    MESMRNaviArrowEventObserver* iObserver;

    /// Own: Left arrow visibility status

    TBool iArrowVisibility;

    /// Own: Store the type of such arrow

    TArrowType iArrowType;

    /// Own: Store the size of such arrow

    TSize iIconSize;

    };

#endif /* CMRNAVIARROW_H_ */