1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Visual aligning class

    15 *

    16 */

    17 

    18 

    19 #ifndef C_FSTEXTVIEWERLAYOUTER_H

    20 #define C_FSTEXTVIEWERLAYOUTER_H

    21 

    22 //<cmail> removed __FS_ALFRED_SUPPORT flag

    23 //#include <fsconfig.h>

    24 //</cmail> removed __FS_ALFRED_SUPPORT flag

    25 #include <e32base.h>

    26 #include <biditext.h>

    27 

    28 class CFsTextViewerCoordinator;

    29 class MFsRichTextObject;

    30 class CFsTextViewerVisualizerData;

    31 class TFsRangedVisual;

    32 class CWsScreenDevice;

    33 class CAlfLayout;

    34 class CFsRichText;

    35 class CAlfEnv;

    36 class CFsTextParser;

    37 class CFsTextViewerVisualizer;

    38 

    39 class CFsTextViewerLayouter : public CBase

    40     {

    41     public:

    42         static CFsTextViewerLayouter* NewL( CAlfEnv* aEnv );

    43         ~CFsTextViewerLayouter();

    44         

    45     public:

    46         TInt MeasureBidiTextBoundsWidth(

    47             const CFont& aFont,

    48             const TDesC& aText,

    49             CFont::TMeasureTextInput::TFlags aOrder);

    50         TSize CalculateSizeL( MFsRichTextObject* aObject );

    51         TInt FindMaxLengthL( MFsRichTextObject* aObject );

    52         TFsRangedVisual* PrepareRangedVisL( 

    53                         MFsRichTextObject* aObject,

    54                         CAlfLayout* aLayout );

    55         void SetDisplaySize( TSize aDisplaySize );

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

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

    58         void ConstructLineL( TInt aHeight = 1 );

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

    60         void SetHelper( CFsTextViewerCoordinator* aHelper );

    61         void SetNavigator( CFsTextViewerVisualizerData* aNavigator );

    62         TInt Lines();

    63         void EnableSmileys( TBool aEnable = ETrue );

    64         void SetPosition( TInt aLine, TInt aLineOffset );

    65         void ChangeDirection( TBidiText::TDirectionality aDirection );

    66         void SetDirection( TBidiText::TDirectionality aDirection );

    67         TBidiText::TDirectionality GetDirection();

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

    69         TInt GetCurrentLineOffset();

    70         void SetCurrentLineOffset( TInt aOffset );

    71         TBool IsNewLine();

    72         

    73     private:

    74         void ConstructL();

    75         CFsTextViewerLayouter( CAlfEnv* aEnv );

    76         

    77     private:

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

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

    80         

    81     private:

    82         CFsTextViewerCoordinator* iHelper;

    83         CFsTextViewerVisualizerData* iNavigator;

    84         CWsScreenDevice* iScreenDev;

    85         CFsRichText* iCFsRichText;

    86         TBool iSmileyEnabled;

    87         TSize iDisplaySize;

    88         CAlfEnv* iEnv;

    89         RPointerArray<TFsRangedVisual> iCurrentLineArray;

    90         TInt iCurrentLineOffset;

    91         TInt iLineHeight;

    92         TInt iLastCol;

    93         TInt iLeftMargin;

    94         TInt iRightMargin;

    95         TInt iLines;

    96         TInt iLowestPicPosition;

    97         TBidiText::TDirectionality iMainDirection;

    98         TBool iNewLine;

    99         

   100     public:

   101         CFsTextViewerVisualizer* iVisualizer;

   102         CAlfControl* iControl;

   103     };

   104 

   105 #endif //C_FSTEXTVIEWERLAYOUTER_H