/*

* Copyright (c) 2002 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:  Pictograph drawer. It handles drawing pictographs.

*

*

*/

#ifndef AKN_PICTOGRAPH_DRAWER_IMPL_H

#define AKN_PICTOGRAPH_DRAWER_IMPL_H

// INCLUDES

#include "AknPictographDrawerInterface.h"

#include <e32base.h>

// CONSTANTS

// FORWARD DECLARATIONS

class CFont;

struct TAknPictographData;

class CAknPictographAnimator;

class CCoeControl;

// CLASS DECLARATION

/**

* Avkon's Pictograph drawer

*/

NONSHARABLE_CLASS(CAknPictographDrawer) : 

    public CBase,

    public MAknPictographDrawer

	{

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

	    static CAknPictographDrawer* NewL(

            MAknPictographAnimatorCallBack& aCallBack );

        /**

        * Destructor.

        */

        ~CAknPictographDrawer();

    public: // New functions

        void AnimationTick();

	    void HandleGainingForeground();

	    void HandleLosingForeground();

        inline TBool IsAnimating() const;

    public: // Functions from MAknPictographDrawer (commented there)

        HBufC* SupportedPictographCodesL() const;

        TBool IsPictograph( TText aCode ) const;

        TBool ContainsPictographs( const TDesC& aText ) const;

        void DrawPictograph(

            CBitmapContext& aGc,

            const TPoint& aTopLeft,

            TText aCode,

            TAknPictographHeight aHeight ) const;

        void DrawPictograph(

            CBitmapContext& aGc,

            const TRect& aRect,

            TText aCode,

            TAknPictographHeight aHeight ) const;

        void DrawPictograph(

            CBitmapContext& aGc,

            const TRect& aRect,

            const TRect& aClipRect,

            TText aCode,

            TAknPictographHeight aHeight ) const;

        void DrawText(

            CBitmapContext& aGc,

            const CFont& aFont,

            const TDesC& aText,

            const TPoint& aPosition ) const;

        void DrawText(

            CBitmapContext& aGc,

            const CFont& aFont,

            const TDesC& aText,

            const TRect& aBox,

            TInt aBaselineOffset,

            CGraphicsContext::TTextAlign aAlignment = CGraphicsContext::ELeft,

            TInt aLeftMargin = 0 ) const;

        void DrawPictographsInText(

            CBitmapContext& aGc,

            const CFont& aFont,

            const TDesC& aText,

            const TPoint& aPosition ) const;

        void DrawPictographsInText(

            CBitmapContext& aGc,

            const CFont& aFont,

            const TDesC& aText,

            const TRect& aBox,

            TInt aBaselineOffset,

            CGraphicsContext::TTextAlign aAlignment = CGraphicsContext::ELeft,

            TInt aLeftMargin = 0 ) const;

        TBool IsAnimated( TText aCode, TAknPictographHeight aHeight ) const;

        TInt SelectPictographHeightForFont(

            const CFont& aFont,

            TAknPictographHeight& aHeight

            ) const;

        TAknPictographDrawingMode SetPictographDrawingMode(

            TAknPictographDrawingMode aDrawingMode);

    private: // New functions

        void DoDrawPictograph( 

            CBitmapContext& aGc,

            const TPoint& aTopLeft,

            const TAknPictographData& aData,

            TRect* aRect ) const;

        void DrawPictographs(

            CBitmapContext& aGc,

            const CFont& aFont,

            const TDesC& aText,

            const TPoint& aPosition,

            const TRect* aClipRect ) const;

        void StartAnimatorIfRequired() const;

        void StopAnimator() const;

        TInt FetchPictographData(

            TText aCode,

            TAknPictographData& aData ) const;

    private:

        /**

        * C++ default constructor.

        */

        CAknPictographDrawer( MAknPictographAnimatorCallBack& aCallBack );

        /**

        * 2nd phase constructor.

        */

        void ConstructL();

    private:    // Data        

        /**

        * Pictograph animator, not owned.

        */

        CAknPictographAnimator* iAnimator;

        /**

        * CallBack to draw animation frames.

        */

        MAknPictographAnimatorCallBack& iCallBack;

        /**

        * Currently used pictograph height. Modified during drawing routine.

        */

        mutable TAknPictographHeight iCurrentHeight;

        /**

        * Flags. Modified during drawing routine.

        */

        mutable TInt16 iFlags;

        /**

        * Currently used pictograph drawing mode.

        */

        TAknPictographDrawingMode iDrawingMode;

    };

#include "AknPictographDrawer.inl"

#endif      // AKN_PICTOGRAPH_DRAWER_IMPL_H

// End of File