/*

* 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:           

 *      Provides the CAknFepUICtrlEEPControl definition 

 *

*/

#include <eikappui.h>

#include <eikenv.h> 

#include <AknUtils.h> 

#include <AknBidiTextUtils.h> //AknBidiTextUtils 

#include <bidivisual.h> //TBidiLogicalToVisual

#include <AknsSkinInstance.h> 

#include <AknsDrawUtils.h> 

#include <skinlayout.cdl.h>

#include "aknlayoutscalable_avkon.cdl.h"

#include "aknfepuictrleepcontrol.h"

#include "insertionpoint.h"

#include "aknfepuilayoutdatamgr.h"

#include "aknfepchineseuidataconv.h"

const TInt KMaxDispNum = 100;

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

// NewL function.

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

//

CAknFepUICtrlEEPControl* CAknFepUICtrlEEPControl::NewL( RWindow& aParent, CAknFepUiLayoutDataMgr* aLafDataMgr )

    {

    CAknFepUICtrlEEPControl* self= CAknFepUICtrlEEPControl::NewLC( aParent, aLafDataMgr );

    CleanupStack::Pop( self ); // self;

    return self;

    }

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

// NewLC function.

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

//

CAknFepUICtrlEEPControl* CAknFepUICtrlEEPControl::NewLC( RWindow& aParent, CAknFepUiLayoutDataMgr* aLafDataMgr )

    {

    CAknFepUICtrlEEPControl* self = new ( ELeave ) CAknFepUICtrlEEPControl(aLafDataMgr);

    CleanupStack::PushL( self ) ;

    self->ConstructL( aParent );

    return self;

    }

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

// Cancel and destroy.

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

//

CAknFepUICtrlEEPControl::~CAknFepUICtrlEEPControl( )

    {

    if ( iBuffer )

        {

        delete iBuffer;

        iBuffer = NULL;

        }

    if ( iInsertionPoint )

        {

        delete iInsertionPoint;

        iInsertionPoint = NULL;

        }

    iArray.ResetAndDestroy( );

    }

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

// Draw the control.

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

//

void CAknFepUICtrlEEPControl::Draw( const TRect& /*aRect*/ ) const

    {

    CWindowGc& gc = SystemGc( );

    TAknTextLineLayout textPaneTextLayout;

    gc.Clear( Rect( ) ) ;

    gc.SetPenStyle( CGraphicsContext::ESolidPen ) ;

    TInt fontWidth = 0;

    TRect editRectTmp;

    MAknsSkinInstance* skin = AknsUtils::SkinInstance( );

    TRect outerRect;

    TRect innerRect;

    CalculateFrameRects( outerRect, innerRect ) ;

    AknsDrawUtils::DrawFrame( skin, gc, outerRect, innerRect,

        KAknsIIDQsnFrPopupSub, KAknsIIDQsnFrPopupCenterSubmenu ) ;

    TRect textrect;

    textrect.iTl = Rect().iTl + TPoint( Rect().Width( )*KLROffset/KDenominator, 3 ) ;

    textrect.SetHeight( Rect().Height( ) ) ;

    textrect.SetWidth( Rect().Width( )- Rect().Width( )*KLROffset/KDenominator * 2 ) ;

        TAknLayoutText layoutText;

        layoutText.LayoutText( textrect, textLayout ) ;

        const CFont* font = layoutText.Font( );

        gc.UseFont( font ) ;

    TInt baseLine = font->AscentInPixels( )/2 + Rect().Height( )/2 - 2;

    TInt arrayCount = iArray.Count( );

    TInt beg = 0;

    TInt end = iBuffer->Length( ) - 1;

    for ( TInt i = 0; i < arrayCount; i++ )

        {

        TSegment* tmp = iArray[i];

        fontWidth = font->TextWidthInPixels( iBuffer->Left( beg ) ) ;

        editRectTmp = textrect;

        editRectTmp.iTl.iX = textrect.iTl.iX + fontWidth;

        gc.SetPenColor( iDefaultTextColor ) ;

        gc.SetUnderlineStyle( EUnderlineOff ) ;

        gc.DrawText( iBuffer->Mid( beg, tmp->iBegin - beg ) , editRectTmp,

            baseLine ) ;

        fontWidth = font->TextWidthInPixels( iBuffer->Left( tmp->iBegin ) ) ;

        editRectTmp = textrect;

        editRectTmp.iTl.iX = textrect.iTl.iX + fontWidth;

        if ( tmp->iStyle == EHighlight )

            {

            gc.SetPenColor( iHighlightColor ) ;

            }

        else if ( tmp->iStyle == EUnderline )

            {

            gc.SetUnderlineStyle( EUnderlineOn ) ;

            }

        else if ( tmp->iStyle == EUnderlineHighlight )

            {

            gc.SetPenColor( iHighlightColor ) ;

            gc.SetUnderlineStyle( EUnderlineOn ) ;

            }

        gc.DrawText(

            iBuffer->Mid( tmp->iBegin, tmp->iEnd - tmp->iBegin + 1 ) ,

            editRectTmp, baseLine ) ;

        beg = tmp->iEnd + 1;

        }

    gc.SetPenColor( iDefaultTextColor ) ;

    gc.SetUnderlineStyle( EUnderlineOff ) ;

    fontWidth = font->TextWidthInPixels( iBuffer->Left( beg ) ) ;

    editRectTmp = textrect;

    editRectTmp.iTl.iX = textrect.iTl.iX + fontWidth;

    gc.DrawText( iBuffer->Right( end - beg + 1 ) , editRectTmp, baseLine ) ;

    gc.DiscardFont( );

    if ( isCursorDraw )

        {

        iInsertionPoint->SetTextRect( textrect ) ;

        //iInsertionPoint->SetHeight( font->HeightInPixels( ) + 4 ) ;

        iInsertionPoint->SetHeight();

        iInsertionPoint->Draw( gc ) ;

        }

    }

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

// From CCoeControl.

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

//

void CAknFepUICtrlEEPControl::SizeChanged( )

    {

    }

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

// Set the visual text and store it into member data buffer.

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

//

void CAknFepUICtrlEEPControl::SetText( const TDesC& aDes )

    {

    ResetAll( );

    * (this->iBuffer ) = aDes;

    }

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

// Set the cursor position in the visual text rect.

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

//

TInt CAknFepUICtrlEEPControl::SetCursorPosition( TInt aIndex )

    {

    if ( aIndex < 0 || aIndex> iBuffer->Length() + 1 )

        {

        return -1;

        }

    else

        {

        iCursorPosition = aIndex;

        TInt offSetInPixel = 0;

        TAknTextLineLayout textPaneTextLayout = 

            CAknFepChineseUIDataConv::AnyToTextLine( iLafDataMgr->RequestData( EEEPTextLine ));

        const CFont* font = AknLayoutUtils::FontFromId ( textPaneTextLayout.iFont,

            NULL );

        offSetInPixel = font->TextWidthInPixels ( iBuffer->Left ( iCursorPosition ) );

        this->iInsertionPoint->SetPosition ( offSetInPixel );

        return 0;

        }

    }

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

// Get the cursor position in visual text.

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

//

TInt CAknFepUICtrlEEPControl::GetCursorPosition( )

    {

    return iCursorPosition;

    }

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

// Set the underlined text beginning index and ending index.

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

//

TInt CAknFepUICtrlEEPControl::SetUnderline( TInt aBeg, TInt aEnd )

    {

    if ( aBeg> aEnd 

    		|| ( aBeg < 0 || aBeg> iBuffer->Length() )

    		|| ( aEnd < 0 || aEnd> iBuffer->Length() ))

        {

        return -1;

        }

    else

        {

        SetSegment ( aBeg, aEnd, EUnderline );

        return 0;

        }

    }

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

// Set the highlighted text beginning index and ending index.

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

//

TInt CAknFepUICtrlEEPControl::SetHighlight( TInt aBeg, TInt aEnd )

    {

    if ( aBeg> aEnd 

    		|| ( aBeg < 0 || aBeg> iBuffer->Length() )

    		|| ( aEnd < 0 || aEnd> iBuffer->Length() ))

        {

        return -1;

        }

    else

        {

        SetSegment ( aBeg, aEnd, EHighlight );

        return 0;

        }

    }

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

// Add a TSegment into iArray to identify the segment with a specified style.

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

//

void CAknFepUICtrlEEPControl::SetSegmentL ( TInt aBeg, TInt aEnd, TDspStyle aStyle )

    {

    TInt left = aBeg;

    TInt right = aEnd;

    TSegment* tmp;

    TSegment* newSeg;

    RPointerArray<TSegment> newArray;

    TBool consumed = EFalse;

    if ( iArray.Count() == 0 )

        {

        tmp = new ( ELeave )TSegment ( aBeg, aEnd, aStyle );

        TLinearOrder<TSegment> orderByBegIndex(TSegment::CompareByBegIndex);

        iArray.InsertInOrder ( tmp, orderByBegIndex );

        consumed = ETrue;

        return;

        }

    for ( TInt i = 0; i < iArray.Count(); i++ )

        {

        tmp = iArray[i];

        if ( left > tmp->iBegin && left < tmp->iEnd 

            && right > tmp->iEnd )

            {

            if ( aStyle == tmp->iStyle )

                {

                left = tmp->iEnd + 1;

                }

            else

                {

                TInt tmpIndex = tmp->iEnd;

                tmp->iEnd = left - 1;

                newSeg = new ( ELeave ) TSegment ( left, tmpIndex, EUnderlineHighlight );

                CleanupStack::PushL( newSeg );

                newArray.AppendL( newSeg );

                CleanupStack::Pop( newSeg );

                left = tmpIndex + 1;

                }

            }

        else if ( left < tmp->iBegin

            && right > tmp->iBegin && right < tmp->iEnd )

            {

            if ( aStyle == tmp->iStyle )

                {

                tmp->iBegin = left;

                consumed = ETrue;

                break;

                }

            else

                {

                newSeg = new ( ELeave ) TSegment ( left, tmp->iBegin - 1, aStyle );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                newSeg = new ( ELeave ) TSegment ( tmp->iBegin, right, EUnderlineHighlight );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                tmp->iBegin = right + 1;

                consumed = ETrue;

                break;

                }

            }

        else if ( left > tmp->iBegin && left < tmp->iEnd 

            && right > tmp->iBegin && right < tmp->iEnd )

            {

            if ( aStyle == tmp->iStyle )

                {

                consumed = ETrue;

                break;

                }

            else

                {

                newSeg = new ( ELeave ) TSegment ( tmp->iBegin, left - 1, tmp->iStyle );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                newSeg = new ( ELeave ) TSegment ( left, right, EUnderlineHighlight );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                tmp->iBegin = right + 1;

                consumed = ETrue;

                break;

                }

            }

        else if ( left < tmp->iBegin && right > tmp->iEnd )

            {

            if ( aStyle == tmp->iStyle )

                {

                tmp->iBegin = left;

                left = tmp->iEnd + 1;

                }

            else

                {

                newSeg = new ( ELeave ) TSegment ( left, tmp->iBegin - 1, aStyle );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                tmp->iStyle = EUnderlineHighlight;

                left = tmp->iEnd + 1;

                }

            }

        else if ( left < tmp->iBegin && right < tmp->iBegin )

            {

            newSeg = new ( ELeave ) TSegment ( left, right, aStyle );

            CleanupStack::PushL(newSeg);

            newArray.AppendL( newSeg );

            CleanupStack::Pop(newSeg);

            consumed = ETrue;

            break;

            }

        else if ( left > tmp->iEnd && right > tmp->iEnd )

            {

            if ( i == ( iArray.Count() - 1 )

                || right < iArray[i+1]->iBegin )

                {

                newSeg = new ( ELeave ) TSegment ( left, right, aStyle );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                consumed = ETrue;

                break;

                }

            }

        else if (left == tmp->iBegin && right < tmp->iEnd )

        	{

        	if ( aStyle == tmp->iStyle )

        		{

        		consumed = ETrue;

        		break;

        		}

        	else

        		{

        		newSeg = new ( ELeave ) TSegment ( left, right, EUnderlineHighlight );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

        		tmp->iBegin = right + 1;

        		consumed = ETrue;

        		break;

        		}

        	}

        else if (left > tmp->iBegin && right == tmp->iEnd )

        	{

        	if ( aStyle == tmp->iStyle )

        		{

        		consumed = ETrue;

        		break;

        		}

        	else

        		{

        		newSeg = new ( ELeave ) TSegment ( left, right, EUnderlineHighlight );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

        		tmp->iEnd = left - 1;

        		consumed = ETrue;

        		break;

        		}

        	}

        else if (left == tmp->iBegin && right == tmp->iEnd )

        	{

        	if ( aStyle == tmp->iStyle )

        		{

        		consumed = ETrue;

        		break;

        		}

        	else

        		{

        		tmp->iStyle = EUnderlineHighlight;

        		consumed = ETrue;

        		break;

        		}

        	}

        else if (left == tmp->iBegin && right > tmp->iEnd )

        	{

        	if ( aStyle == tmp->iStyle )

        		{

        		left = tmp->iEnd + 1;

        		}

        	else

        		{

        		tmp->iStyle = EUnderlineHighlight;

        		left = tmp->iEnd + 1;

        		}

        	}

        else if (left < tmp->iBegin && right == tmp->iEnd )

        	{

        	if ( aStyle == tmp->iStyle )

        		{

        		tmp->iBegin = left;

        		consumed = ETrue;

        		break;

        		}

        	else

        		{

        		newSeg = new ( ELeave ) TSegment ( left, tmp->iBegin - 1, aStyle );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

        		tmp->iStyle = EUnderlineHighlight;

        		consumed = ETrue;

        		break;

        		}

        	}

        else if (left == tmp->iEnd && tmp->iBegin < left )

        	{

        	if ( aStyle == tmp->iStyle )

        		{

        		left = tmp->iEnd + 1;

        		}

        	else

        		{

        		tmp->iEnd = tmp->iEnd - 1;

                newSeg = new ( ELeave ) TSegment ( left, left, EUnderlineHighlight );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                left = left + 1;

        		}

        	}

        else if (right == tmp->iBegin && tmp->iEnd > right )

        	{

        	if ( aStyle == tmp->iStyle )

        		{

        		tmp->iBegin = left;

        		consumed = ETrue;

        		break;

        		}

        	else

        		{

        		tmp->iBegin = tmp->iBegin + 1;

                newSeg = new ( ELeave ) TSegment ( right, right, EUnderlineHighlight );

                CleanupStack::PushL(newSeg);

                newArray.AppendL( newSeg );

                CleanupStack::Pop(newSeg);

                right = right - 1;

        		}

        	}

        }

    if ( consumed == EFalse )

    	{

    	newSeg = new ( ELeave ) TSegment ( left, right, aStyle );

        CleanupStack::PushL(newSeg);

        newArray.AppendL( newSeg );

        CleanupStack::Pop(newSeg);

    	consumed = ETrue;

    	}

    for ( TInt ii = 0; ii < newArray.Count();  ii++ )

        {

        TLinearOrder<TSegment> orderByBegIndex(TSegment::CompareByBegIndex);

        TSegment* tmp1 = newArray[ii];

        TInt err = 0;

        err = iArray.InsertInOrder ( newArray[ii], orderByBegIndex );

        if ( err == KErrAlreadyExists )

        	{

        	delete tmp1;

        	}

        }