/*

* 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:  Implementation for arabic peninput finger hwr

*

*/

#ifndef C_PENINPUTFINGERHWRARDATASTORE_H

#define C_PENINPUTFINGERHWRARDATASTORE_H

//SYSTEM INCLUDES

#include <e32base.h>

#include <e32def.h>

#include <w32std.h>

#include <eikon.hrh>

//FEP INCLUDES

#include <peninputpluginutils.h>

//USER INCLUDES

#include "peninputfingerhwrarstoreconstants.h"

#include "peninputfingerhwrar.hrh"

//CONSTANTS

const TInt KLanguageStringLength = 10;

//FOWWARD CLASS

class CPeninputFingerHwrArLayout;

class CRepository;

class CPeninputFingerHwrArEngine;

class CPtiEngine;

/**

 *  CPeninputFingerHwrArDataStore

 *

 *  @lib peninputfingerhwr.lib

 */

class CPeninputFingerHwrArDataStore : public CBase

    {

public:

    /**

     * Symbian constructor.

     *

     * @param aPtiEngine The PtiEngine

     * @param aLayout The Finger HWR layout

     * @return Pointer to created CPeninputFingerHwrArDataStore object

     */

    static CPeninputFingerHwrArDataStore* NewL( CPtiEngine* aPtiEngine, 

        CPeninputFingerHwrArLayout* aLayout );

    /**

     * destructor

     *

     * @return None

     */

    virtual ~CPeninputFingerHwrArDataStore();

public:    

    /**

     * Is valid candidate

     *

     * @param aCandidateIndex The index the candidate in list.

     * @return ETrue if candidate is not empty; otherwise EFalse

     */    

    TBool IsValidCandidate( TInt aCandidateIndex ) const;

    /**

     * Is English letter

     *

     * @param aLetter The recognize character.

     * @return ETrue if the character is English letter; otherwise EFalse

     */   

    TBool IsEnglishLetter( const TDesC& aLetter);

    /**

     * Do recoginize by engine

     *

     * @param aTraceData The trace data.

     * @return None

     */            

    void DoRecognizeL( const RArray<TPoint>& aTraceData );

    /**

     * Set Chinese symbol to writing candidate list

     *

     * @return None

     */      

    void SetArabicSymbolL();

    /**

     * Set permitted ranges

     *

     * @param aPermittedRanges The permitted ranges.

     * @return None

     */            

    void SetPermittedRanges( TInt aPermittedRanges );  

    /**

     * Set permitted ranges

     *

     * @param aPermittedRanges The permitted ranges.

     * @return None

     */            

    void SetPermittedCases( TInt aPermittedCases );

    /**

     * Set Primary range

     *

     * @param aPrimaryRange The Primary range

     * @return None

     */            

    void SetPrimaryRange( TInt aPrimaryRange );

    /**

     * Get Primary range

     *

     * @return Primary range.

     */

    TInt PrimaryRange();

    /**

     * Get current range

     *

     * @return Current range.

     */   

    TFingerHwrRange CurrentRange();

    /**

     * Set case

     *

     * @param aCase The case

     * @return None

     */            

    void SetCase( TInt aCase );

    /**

     * Set language

     *

     * @param aLanguage The language

     * @return None

     */            

    void SetLanguageL( TInt aLanguage );

    /**

     * Set auto complete candidate list.

     *

     * @param aIsFirstStroke The first stroke flag

     * @return None

     */

    void SetFirstStroke( const TBool aIsFirstStroke);

    /**

     * Set auto complete candidate list.

     *

     * @return ETrue if it's the first stroke

     */

    TBool FirstStroke();   

    /**

     * Get the candidate.

     *

     * @param aIndex The index of candidate

     * @param aCharCode The result candidate

     * @return Candidate char code

     */

    const RPointerArray<HBufC>& Candidate() const;

    /**

     * Set number mode

     *

     * @param aNumberMode Given number mode

     * @return None

     */

    void SetNumberMode( const TAknEditorNumericKeymap aNumberMode );

    /**

     * Set number mode

     *

     * @param aCustomMode The customized number key mapping, 0-9

     *                    are not included.

     * @return None

     */

    void SetCustomNumberModeL( const TDesC& aCustomMode );

    /**

     * Set the screen mode.

     *

     * @param aRange The range

     * @return None

     */

    void SaveRange( TInt aRange );

    /**

     * Set stroke end mark to stroke end mark control

     *

     * @return None

     */

    void SetStrokeEndMark();

    /**

     * Get the stroke end mark.

     *

     * @return TPoint

     */

    TPoint StrokeEndMark();

    /**

     * Get stroke end mark from control which handle it

     *

     * @return None

     */

    TPoint StrokeEndMarkFromControl();

    /**

     * Get number keymapping string

     *

     * @param aKeyMappingId Keymapping id

     * @return Pointer to keymapping string 

     */    

    HBufC* KeyMappingStringL() const;

    /**

     * Check if the char is the special display char

     * 

     * @param aChar The checked char

     * @return TBool Wheater or not the input char is the special display char

     */

    TBool IsSpecialDisplayChars( const TDesC& aChar ) const;

    /**

     * Check if the char is need to be sent to app directly which not need to be shown  in candidate window.

     * 

     * @param aChar The checked char

     * @return TBool Wheater or not the input char is the directly sent char

     */

    TBool IsDirectlySentCandidate( const TDesC& aChar ) const;

    /**

     * Convert the special display char to the keycode.

     *

     * @param aChar The special display char.

     * @return HBufC* The converted keycode char.

     */

    HBufC* ConvertDisplayChars( const TDesC& aChar ) const;

    /**

     * Get start writing char flag

     *

     * @return ETrue If begine writing.

     */   

    TBool StartCharacter();

    /**

     * Set start writing char flag

     *

     * @param aStartCharacter The start writing flag

     * @return ETrue If begine writing.

     */   

    void SetStartCharacter(const TBool aStartCharacter);

    /**

     * Set input area size to engine for recognize

     *

     * @param aStartCharacter The start writing flag

     * @return ETrue If begine writing.

     */   

    TInt SetInputAreaSize(TSize& aSize);

    /**

     * Set screen size to engine for recognize

     *

     * @param aStartCharacter The start writing flag

     * @return ETrue If begine writing.

     */        

    TInt SetScreenSize(TSize& aSize);

    /**

     * Set high light flag for candidate list

     *

     * @param aIsHighlight The flag to decide highlight default cell or not

     * @return None

     */   

    void SetHighlight(const TBool aIsHighlight);

    /**

     * Get high light flag for candidate list

     *

     * @return ETrue If highlight the default cell to candidate list

     */   

    TBool Highlight();

    /**

     * Remove duplicate candidate from predictive candidate list

     *

     * @param aSrc The punctuation candidate list

     * @param aTgt The predicative candidate list

     * @param aSrcStartIdx 

     * @param aTgtStartIdx 

     * @return last overlap index

     */   

    TInt RemoveDuplicateCand(const RPointerArray<HBufC>& aSrc,

                             RPointerArray<HBufC>& aTgt,

                             TInt aSrcStartIdx,

                             TInt aTgtStartIdx);

    /**

     * Reset key board type

     *

     */   

    void ResetKeyboardType();

    /**

     * Set key board type to qwerty

     *

     */   

    void SetKeyboardToQwerty();

    /**

     * Get key board type

     *

     */   

    void GetKeyboardType();

	/**

     * Get top guide line from hwr engine

     *

     */

    void GetTopGuideLinePos(TInt& aPos);

	/**

     * Get bottom guide line from hwr engine

     *

     */

	void GetBottomGuideLinePos(TInt& aPos);

    /**

     * Set first candidate type according to editor's text in cursor.

     * @since s60 v5.2

     */

    void SetFirstCandidateType(TFirstCandidateType aFirstCandType);

    /**

     * Check if the passed char is latin number

     *

     * @since s60 v5.2

     * @param aChar The passed unicode

     * @return ETrue if it is, EFalse otherwise

     */

    TBool IsLatinNumber(TUint16 aChar);

    /**

     * Check if the passed char is latin char

     *

     * @since s60 v5.2

     * @param aChar The passed unicode

     * @return ETrue if it is, EFalse otherwise

     */

    TBool IsLatinChar(TUint16 aChar);

    /**

     * Check if the passed char is arabic number

     *

     * @since s60 v5.2

     * @param aChar The passed unicode

     * @return ETrue if it is, EFalse otherwise

     */

    TBool IsArabicNumber(TUint16 aChar);

private:  

    /**

     * C++ constructor

     *

     * @return None

     */            

    CPeninputFingerHwrArDataStore(CPeninputFingerHwrArLayout* aLayout);

    /**

     * Second phase constructor

     *

     * @return None

     */

    void ConstructL( CPtiEngine* aPtiEngine );

   /**

     * Initialize the key mapping list

     *

     * @return None

     */  

    void InitKeyMappingListL();    

    /**

     * Judge if a language is Arabic

     *

     * @param aLanguage Given language code

     * @return ETrue if aLanguage is Chinese, otherwise EFalse

     */

    TBool IsArabicLanguage( TInt aLanguage );

    /**

     * Set engine language

     *

     * @param aLanguage Given language code

     * @return None

     */

    void SetEngineLanguageL( TInt aLanguage );    

    /**

     * Set language show text

     *

     * @param aLanguage language code

     * @return None

     */

    void SetLanguageShowText( TInt aLanguage );   

    /**

     * Reorder candidate list according to pre character type in editor.

     * @since s60 v5.2

     * @param None.

     * @return None.

     */

    void ReorderCandidates();

private:// data

    /**

     * candidate list (Own)

     */

    RPointerArray<HBufC> iCandidates;

    /**

     * The candidate range start index

     */

    RArray<TInt> iRangeStartPos;

    /**

     * Permitted ranges

     */

    RArray<TInt> iPermittedRanges;

    /**

     * Current range

     */

    TFingerHwrRange iCurrentRange;

    /**

     * Permitted range in int format