/*

* Copyright (c) 2008 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:  smiely engine class

*

*/

#include <coecntrl.h>

#include <eikedwin.h>

#include <frmtlay.h>

#include "smileymodel.h"

#include "smileyinforeader.h"

#include "smileydrawer.h"

#include "smileyimagedata.h"

#include "smileymanager.h"

#include "smileyiconrecord.h"

// ======== MEMBER FUNCTIONS ========

// ---------------------------------------------------------------------------

// CSmileyManager::NewL

// ---------------------------------------------------------------------------

//

CSmileyManager* CSmileyManager::NewL( CEikEdwin& aEdwin )

    {

    CSmileyManager* self = CSmileyManager::NewLC( aEdwin );

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// CSmileyManager::NewLC

// ---------------------------------------------------------------------------

//

CSmileyManager* CSmileyManager::NewLC( CEikEdwin& aEdwin )

    {

    CSmileyManager* self( new( ELeave ) CSmileyManager );

    CleanupStack::PushL( self );

    self->ConstructL( aEdwin );

    return self;

    }

// ---------------------------------------------------------------------------

// destructor

// ---------------------------------------------------------------------------

//

CSmileyManager::~CSmileyManager()

    {

    delete iDrawer;

    delete iReader;

    delete iModel;

    delete iIconRecord;

    }

// ---------------------------------------------------------------------------

// CSmileyManager::ConvertSmileyStrings

// ---------------------------------------------------------------------------

//

TBool CSmileyManager::ConvertTextForSmileyL( TInt aStart, TDes& aText, 

    TBool aStringToCodes )

    {

    TBool ret( EFalse );

    if ( aStringToCodes )

        {    

        ret = ConvertTextToCodesL( aText, aStart );

        }

    else if ( iIconRecord->HasSmileyIcon() )

        {

        ret = ConvertCodesToTextL( aText, aStart );        

        } 

    return ret;

    }

// ---------------------------------------------------------------------------

// CSmileyManager::ConvertCodesToTextL

// ---------------------------------------------------------------------------

//

TBool CSmileyManager::ConvertCodesToTextL( TDes& aText, TInt aStart )

    {

    TBool ret( EFalse );

    for ( TInt i( 0 ); i < aText.Length(); i++ )

        {

        if ( IsSmileyCode( aText[i] ) )

            {

            ret = ETrue;

            CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( i + aStart ) );

            if ( icon )

                {

                const TDesC& smileyText( icon->SmileyString() );

                aText.Replace( i, smileyText.Length(), smileyText );

                }

            }

        }

    return ret;

    }

TBool CSmileyManager::ConvertTextToCodesL( TDes& aText, TInt aStart )

    {

    TBool ret( EFalse );

    TInt i( 0 );

    while ( i < aText.Length() )

        {

        TInt index( iModel->TryFindMatchNode( aText, i ) );

        if ( iModel->IsFinalNode( index ) )

            {

            TInt smileyLength( iModel->SmileyStringLength( index ) );

            TInt docPos( aStart + i );

            if( iModel->IsSmileyBySemanticAnalysis( aText.Left( docPos + smileyLength ), 

				smileyLength ) )

                {

                TText smileyCode( iModel->SmileyCode( index ) );

                CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( docPos ) );

                // If icon is existed but smiley codes are different, it means smiely 

				// string has been changed and editor doesn't know it, so delete old icon 

				// and create a new one. Otherwise, nothing needs to do since the icon is 

				// already existed.

                if ( icon && icon->Code() != smileyCode )

                    {

                    iIconRecord->DeleteIconAtPos( docPos );

                    icon = NULL;

                    }

                if ( !icon || ( icon && !icon->IsDisabled() ) )

                    {

                    if ( !icon )

                        {                    

                        AddSmileyToRecordL( aText.Mid( i, smileyLength ), docPos, 

                            smileyCode );

                        }

                    iModel->ReplaceTextWithCodes( aText, i, index );

                    ret = ETrue;

                    }

                }

            i += smileyLength;

            }

        else

            {

            i++;

            }

        }

    return ret;

    }

void CSmileyManager::AddSmileyToRecordL( const TDesC& aSmileyText, TInt aDocPos, 

    TText aCode )

    {

    CSmileyIcon* icon( new( ELeave ) CSmileyIcon( aCode ) );

    icon->SetDocPos( aDocPos );

    icon->SetSmileyString( aSmileyText );

    iIconRecord->InsertIconL( icon );

    }

// ---------------------------------------------------------------------------

// CSmileyManager::SetHighlightColor

// ---------------------------------------------------------------------------

//

void CSmileyManager::SetHighlightColor( TRgb aColor )

    {

    iDrawer->SetHighlightColor( aColor );

    }

// ---------------------------------------------------------------------------

// CSmileyManager::SetAnimationPlayTimes

// ---------------------------------------------------------------------------

//

void CSmileyManager::SetAnimationPlayTimes( TInt aPlayTimes )

    {

    iDrawer->SetPlayTimes( aPlayTimes );

    }

// ---------------------------------------------------------------------------

// CSmileyManager::DrawIcon

// ---------------------------------------------------------------------------

//

void CSmileyManager::DrawIconL( CBitmapContext& aGc, const TRect& aRect, 

    TInt aDocPos )

    {

    CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( aDocPos ) );

    if ( icon && !icon->IsDisabled() )

        {

        icon->SetRect( aRect );

        CSmileyImageData* image( icon->ImageData() );

        if ( image && aRect.Size() != image->BitmapSize() )

            {

            image->SetBitmapSize( aRect.Size() );

            for ( TInt i( 0 ); i < image->RefArrayCount(); i++ )

                {

                if ( image->RefIcon( i )->IsPlayFinished() )

                    {

                    image->RefIcon( i )->PlayOneTime();

                    }

                }

            iDrawer->CreateImageL( image );            

            }

        else if ( !image )

            {

            iDrawer->CreateImageByIconL( icon );

            }

        iDrawer->DrawImageByIconL( aGc, icon );

        }

    }

// ---------------------------------------------------------------------------

// CSmileyManager::IsSmileyCode

// ---------------------------------------------------------------------------

//

TBool CSmileyManager::IsSmileyCode( TText aCode )

	{

	}

// ---------------------------------------------------------------------------

// CSmileyManager::HandleDeleteL

// ---------------------------------------------------------------------------

//

void CSmileyManager::HandleDeleteL( TInt aStart, TInt aLength )

    { 

    iIconRecord->HandleTextDelete( aStart, aLength );

    }

// ---------------------------------------------------------------------------

// CSmileyManager::HandleInsertL

// ---------------------------------------------------------------------------

//

void CSmileyManager::HandleInsertL( TInt aStart, TInt aLength )

    {

    if ( aLength > 0 )

        { 

        iIconRecord->HandleTextInsert( aStart, aLength );

        }

    }

// ---------------------------------------------------------------------------

// CSmileyManager::HandleSetCursorL

// ---------------------------------------------------------------------------

//

void CSmileyManager::HandleSetCursor( TInt aOldCursor, TInt& aNewCursor )

    {

    CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( aNewCursor ) );

    if ( icon && !icon->IsDisabled() && aNewCursor != icon->DocPos() )

        {

        if ( aOldCursor <= aNewCursor )

            {

            aNewCursor = icon->EndPos();

            }

        else

            {

            aNewCursor = icon->DocPos();

            }

        }

    }

// ---------------------------------------------------------------------------

// CSmileyManager::HandleSelectionL

// ---------------------------------------------------------------------------

//

void CSmileyManager::HandleSelection( TInt aStart, TInt aLength )

    {

    iIconRecord->CancelSelection();

    iIconRecord->SetSelection( aStart, aLength );

    iSelStart = aStart;

    iSelLength = aLength;

    }

// ---------------------------------------------------------------------------

// CSmileyManager::SmileyCodeByPos

// ---------------------------------------------------------------------------

//

TText CSmileyManager::SmileyCodeByPos( TInt aDocPos )

    {

    CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( aDocPos ) );

    if ( icon && !icon->IsDisabled() )

        {

        return icon->Code();

        }

    return 0;

    }

// ---------------------------------------------------------------------------

// CSmileyManager::TextBlockLength

// ---------------------------------------------------------------------------

//

TInt CSmileyManager::SmileyLength( TInt aDocPos )

    {

    CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( aDocPos ) );

    if ( icon && !icon->IsDisabled() )

        {

        return icon->SmileyLength();

        }

    return 0;

    }

// ---------------------------------------------------------------------------

// CSmileyManager::TotalTextLength

// ---------------------------------------------------------------------------

//

TBool CSmileyManager::HasSmileyIconsInText()

    {

    return iIconRecord->HasSmileyIcon();

    }

// ---------------------------------------------------------------------------

// CSmileyManager::RemoveIconsInRange

// ---------------------------------------------------------------------------

//

void CSmileyManager::RemoveIconsInRange( TInt aStart, TInt aLength )

    {

    iIconRecord->HandleTextDelete( aStart, aLength );

    }

// ---------------------------------------------------------------------------

// CSmileyManager::DisableSmileyIcon

// ---------------------------------------------------------------------------

//

void CSmileyManager::DisableSmileyIcon( TInt aDocPos )

    {

    CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( aDocPos ) );

    if ( icon )

        {

        icon->DisableIcon();

        }

    }

// ---------------------------------------------------------------------------

// CSmileyManager::IsDisabledSmileyIcon

// ---------------------------------------------------------------------------

//

TBool CSmileyManager::IsDisabledSmileyIcon( TInt aDocPos )

    {

    CSmileyIcon* icon( iIconRecord->SmileyIconAtPos( aDocPos ) );

    if ( icon )

        {

        return icon->IsDisabled();

        }

    return EFalse;

    }

// ================= Private member functions ======================

// ---------------------------------------------------------------------------

// CSmileyManager::CSmileyManager

// c++ default constructor

// ---------------------------------------------------------------------------

//

CSmileyManager::CSmileyManager()

    {

    }

// ---------------------------------------------------------------------------

// second phase constructor

// ---------------------------------------------------------------------------

//

void CSmileyManager::ConstructL( CEikEdwin& aEdwin )

    {

    iIconRecord = new( ELeave ) CSmileyIconRecord;

    iModel = new( ELeave ) CSmileyModel;

    iReader = new( ELeave ) CSmileyInfoReader( *iModel );

    iDrawer = new( ELeave ) CSmileyDrawer( *iModel, aEdwin );

    iReader->LoadSmileysFromResourceL();    

    }