/*

* 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:  Visual aligning class

*

*/

#ifndef C_FSTEXTVIEWERLAYOUTER_H

#define C_FSTEXTVIEWERLAYOUTER_H

//<cmail> removed __FS_ALFRED_SUPPORT flag

//#include <fsconfig.h>

//</cmail> removed __FS_ALFRED_SUPPORT flag

#include <e32base.h>

#include <biditext.h>

class CFsTextViewerCoordinator;

class MFsRichTextObject;

class CFsTextViewerVisualizerData;

class TFsRangedVisual;

class CWsScreenDevice;

class CAlfLayout;

class CFsRichText;

class CAlfEnv;

class CFsTextParser;

class CFsTextViewerVisualizer;

class CFsTextViewerLayouter : public CBase

    {

    public:

        static CFsTextViewerLayouter* NewL( CAlfEnv* aEnv );

        ~CFsTextViewerLayouter();

    public:

        TInt MeasureBidiTextBoundsWidth(

            const CFont& aFont,

            const TDesC& aText,

            CFont::TMeasureTextInput::TFlags aOrder);

        TSize CalculateSizeL( MFsRichTextObject* aObject );

        TInt FindMaxLengthL( MFsRichTextObject* aObject );

        TFsRangedVisual* PrepareRangedVisL( 

                        MFsRichTextObject* aObject,

                        CAlfLayout* aLayout );

        void SetDisplaySize( TSize aDisplaySize );

        TBool AppendObjectL( MFsRichTextObject* aObject, CAlfLayout* aLayout, CFsTextParser* aParser, TBool aRegisterSelects = ETrue );

        TBool InsertObjectL( MFsRichTextObject* aObject, CAlfLayout* aLayout, CFsTextParser* aParser, TBool aRegisterSelects = ETrue );

        void ConstructLineL( TInt aHeight = 1 );

        void SetMargins( const TInt aLeft, const TInt aRight );

        void SetHelper( CFsTextViewerCoordinator* aHelper );

        void SetNavigator( CFsTextViewerVisualizerData* aNavigator );

        TInt Lines();

        void EnableSmileys( TBool aEnable = ETrue );

        void SetPosition( TInt aLine, TInt aLineOffset );

        void ChangeDirection( TBidiText::TDirectionality aDirection );

        void SetDirection( TBidiText::TDirectionality aDirection );

        TBidiText::TDirectionality GetDirection();

        void JoinRangedVisuals( TFsRangedVisual* aFirst, TFsRangedVisual* aSecond );

        TInt GetCurrentLineOffset();

        void SetCurrentLineOffset( TInt aOffset );

        TBool IsNewLine();

    private:

        void ConstructL();

        CFsTextViewerLayouter( CAlfEnv* aEnv );

    private:

        TBool ReorderLineFromLeftL( MFsRichTextObject* aObject, CAlfLayout* aLayout, CFsTextParser* aParser, TSize aObjectSize, TBool aRegisterSelects = ETrue );

        TBool ReorderLineFromRightL( MFsRichTextObject* aObject, CAlfLayout* aLayout, CFsTextParser* aParser, TSize aObjectSize, TBool aRegisterSelects = ETrue );

    private:

        CFsTextViewerCoordinator* iHelper;

        CFsTextViewerVisualizerData* iNavigator;

        CWsScreenDevice* iScreenDev;

        CFsRichText* iCFsRichText;

        TBool iSmileyEnabled;

        TSize iDisplaySize;

        CAlfEnv* iEnv;

        RPointerArray<TFsRangedVisual> iCurrentLineArray;

        TInt iCurrentLineOffset;

        TInt iLineHeight;

        TInt iLastCol;

        TInt iLeftMargin;

        TInt iRightMargin;

        TInt iLines;

        TInt iLowestPicPosition;

        TBidiText::TDirectionality iMainDirection;

        TBool iNewLine;

    public:

        CFsTextViewerVisualizer* iVisualizer;

        CAlfControl* iControl;

    };

#endif //C_FSTEXTVIEWERLAYOUTER_H