/*

* Copyright (c) 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:  Responsible for marking capabilities

*

*/

#ifndef C_FSTEXTVIEWERMARKFACILITY_H

#define C_FSTEXTVIEWERMARKFACILITY_H

//<cmail> removed __FS_ALFRED_SUPPORT flag

//#include <fsconfig.h>

//</cmail> removed __FS_ALFRED_SUPPORT flag

#include "fstextviewervisualizerdata.h"

class CFsTextViewerVisualizer;

class CAlfVisual;

class CAlfControl;

class CAlfBorderBrush;

class CFsTextViewerSkinData;

class CFsTextViewerMarkFacility : public CBase

    {

    public:

        static CFsTextViewerMarkFacility* NewL( 

                CAlfLayout* aLayout, 

                CAlfControl* aControl, 

                CFsTextViewerVisualizerData* aNavigator,

                CFsTextViewerSkinData* aSkinData );

        ~CFsTextViewerMarkFacility();

        void SetHeadOffsetL( TInt aHead );

        void SetTailOffsetL( TInt aTail );

        void FollowCursorL();

        void SetLayout( CAlfLayout* aLayout );

        void GetRange( TInt& aBegin, TInt& aEnd ) const;

    protected:

        CAlfVisual* CreateMarkVisualL( 

                CAlfVisual* aVisual, 

                TInt aBegin, TInt aEnd );

        void UpdateImageVisualL( 

                CAlfVisual* aVisual, 

                CAlfVisual* aBaseVisual );

        void UpdateTextVisualL( CAlfVisual* aVisual, 

                                CAlfVisual* aBaseVisual, 

                                TInt aBegin, TInt aEnd );

    private:

        void ConstructL();

        CFsTextViewerMarkFacility( 

                CAlfLayout* aLayout, 

                CAlfControl* aControl,

                CFsTextViewerVisualizerData* aNavigator,

                CFsTextViewerSkinData* aSkinData );

    private:

        TInt VisualLength( CAlfVisual* aVisual );

        TInt Find( CAlfVisual* aVisual );

        CAlfVisual* Find( TInt aOffset );

        TInt FindIndex( TInt aOffset );

        TInt LocalVisOffset( TInt aGlobalOffset );

        void DeleteUnused();

        TBool IsHeadVisual( TInt aGlobalOffset );

    private:

        CFsTextViewerVisualizerData* iNavigator;

        TInt iHead;

        TInt iTail;

        CAlfLayout* iLayout;

        CAlfControl* iControl;

        RArray<TFsRangedVisual> iVisuals;

        CAlfBorderBrush* iBorder;

        CFsTextViewerSkinData* iSkinData;

    };

#endif //C_FSTEXTVIEWERMARKFACILITY_H