/*

* 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: This file implements class CNcsEditor.

*

*/

#include "emailtrace.h"

#include <avkon.hrh>

#include <aknenv.h> 		// CAknEnv

#include <txtrich.h>

#include <txtglobl.h>

#include <AknUtils.h>		// AknLayoutUtils

#include <AknsConstants.h>

#include <AknsUtils.h>

#include <AknsSkinInstance.h>

#include <aknedsts.h>

#include <AknsBasicBackgroundControlContext.h>

#include "ncseditor.h"

#include "ncsutility.h"

#include "ncscustomdraw.h"

#include "ncseditorcustomdraw.h"

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

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

// constructor

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

//

CNcsEditor::CNcsEditor( MNcsFieldSizeObserver* aSizeObserver,

                        TBool aHeaderField,

                        TNcsEditorUsage aEditorUsage,

                        const TDesC& aCaptionText ) :

    MNcsControl( aSizeObserver ),

    iPreviousFontHeight( -1 ),

    iPreviousLineSpacingInTwips( -1 ),

    // Platform layout change

    iHeaderField( aHeaderField ),

    iNcsFontType ( NcsUtility::ENcsHeaderDetailFont ),

    iEditorUsage( aEditorUsage ),

    iRealRect( 0, 0, 0, 0 ),

    iCaptionText( aCaptionText.Alloc() )

    {

    FUNC_LOG;

    }

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

// second phase constructor

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

//

void CNcsEditor::ConstructL( const CCoeControl* aParent,

                             TInt aNumberOfLines,

                             TInt aTextLimit )

    {

    FUNC_LOG;

    CEikRichTextEditor::ConstructL( aParent, aNumberOfLines, aTextLimit,

            CEikEdwin::EAvkonEditor | CEikEdwin::EResizable |

            CEikEdwin::ENoAutoSelection | CEikEdwin::EInclusiveSizeFixed |

            CEikEdwin::ENoHorizScrolling | CEikRichTextEditor::EPasteAsPlainText );

    iGlobalCharFormat = CCharFormatLayer::NewL();

    iGlobalCharFormat->SetBase( GlobalText()->GlobalCharFormatLayer() );

    GlobalText()->SetGlobalCharFormat( iGlobalCharFormat );

    }

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

// destructor

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

//

CNcsEditor::~CNcsEditor()

    {

    FUNC_LOG;

    delete iGlobalCharFormat;

    delete iEditorCustomDrawer;

    delete iCaptionText;

    }

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

// CNcsEditor::OpenVirtualKeyBoardL()

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

//

void CNcsEditor::OpenVirtualKeyBoardL()

    {

    FUNC_LOG;

    MCoeFepAwareTextEditor_Extension1* fepAwareTextEditor( 

            InputCapabilities().FepAwareTextEditor()->Extension1() );

    CAknEdwinState* state( NULL );

    if ( fepAwareTextEditor )

        {

        state = static_cast<CAknEdwinState*>( 

                fepAwareTextEditor->State( KNullUid ) );

        }

    if (state)

        {

        state->ReportAknEdStateEventL( 

                MAknEdStateObserver::EAknActivatePenInputRequest );

        }

    }

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

// CNcsEditor::GetLineRectL() const

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

//

    {

    FUNC_LOG;

    TPoint position;

    iLayout->GetLineRect( position.iY, aLineRect );

    }

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

// CNcsEditor::CursorLineNumber() const

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

//

TInt CNcsEditor::CursorLineNumber() const

    {

    FUNC_LOG;

    TInt ret = iLayout->GetLineNumber( CursorPos() );

    ret++;

    return ret;

    }

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

// CNcsEditor::CursorPosition() const

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

//

TInt CNcsEditor::CursorPosition() const

    {

    FUNC_LOG;

	// Return the position of the cursor relative

	// to the top of the control (in pixels)

    TPoint position;

    TInt cp = CursorPos();

    TRAP_IGNORE( iLayout->DocPosToXyPosL( cp , position ) );

    position.iY += iLayout->PixelsAboveBand();

    return position.iY;

    }

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

// CNcsEditor::OfferKeyEventL() const

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

//

TKeyResponse CNcsEditor::OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType )

	{

    FUNC_LOG;

	TKeyResponse ret( EKeyWasNotConsumed );

    if( aKeyEvent.iCode == EKeyDelete && CursorPos() == TextLength() )

        {

        ClearSelectionL();

        return EKeyWasConsumed;

        }

    else

        {

        ret = CEikRichTextEditor::OfferKeyEventL( aKeyEvent, aType );

        }

	return ret;

	}

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

// CNcsEditor::SetTextL

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

//

void CNcsEditor::SetTextL( const TDesC* aDes )

    {

    FUNC_LOG;

    CEikEdwin::SetTextL( aDes );

    if ( ( *aDes ).Compare( KNullDesC ) == 0 )

        {

        // when text is emptied, set text color again

        SetTextColorL( iTextColor );

        UpdateFontSize();

        }

    }

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

// CNcsEditor::HandleResourceChange

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

//

void CNcsEditor::HandleResourceChange( TInt aType )

    {

    FUNC_LOG;

    CEikRichTextEditor::HandleResourceChange( aType );

    if ( aType == KAknsMessageSkinChange )

        {

        UpdateFontSize();

        UpdateColors();

        if ( iCustomDrawer )

            {

            iCustomDrawer->UpdateColors();

            }

        }

    else if ( aType == KEikMessageColorSchemeChange )

        {

        UpdateFontSize();

        UpdateColors();

        if ( iCustomDrawer )

            {

            iCustomDrawer->UpdateColors();

            }

        }

    else if ( aType == KEikMessageZoomChange )

        {

        UpdateFontSize();

        }

    if ( iEditorCustomDrawer )

        {

        iEditorCustomDrawer->UpdateLayout( GetLayout() );

        }

    }

//<cmail> Platform layout change

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

// CNcsEditor::CreateCustomDrawL

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

//

/*

CLafEdwinCustomDrawBase* CNcsEditor::CreateCustomDrawL()

    {

    CLafEdwinCustomDrawBase* drawer = CEikEdwin::CreateCustomDrawL();

    iCustomDrawer = new ( ELeave ) CNcsCustomDraw(

        static_cast<CEikonEnv*>( ControlEnv() )->LafEnv(),

        *this,

        drawer,

        this,

        iHeaderField );

    iCustomDrawer->UpdateColors();

    return iCustomDrawer;

    }

*/    

// </cmail>

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

// CNcsEditor::SetupEditorL()

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

//

void CNcsEditor::SetupEditorL()

    {

    FUNC_LOG;

    // <cmail> Added text view creation.

    // In S60 5.0 we end up here before this control is "activated". Normally

    // text view is created in CEikGlobalTextEditor::ActivateL

    // Find out why this problem doesn't exist in Freestyle/S60 3.2.3.

    if ( !iTextView )

        {

        CreateTextViewL();

        }

    // </cmail>

    // <cmail> Platform layout change

    //TextLayout()->RestrictScrollToTopsOfLines( EFalse );

    // </cmail>

    // Set the cursor position to initialize the edit control

    SetCursorPosL(0,EFalse);

    UpdateFontSize();

    UpdateColors();

    }

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

// CNcsEditor::LineCount() const

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

//

TInt CNcsEditor::LineCount() const

    {

    FUNC_LOG;

    TInt lineCount = iLayout->GetLineNumber( TextLength() );

    lineCount++;

    return lineCount;

    }

TInt CNcsEditor::ScrollableLines() const

    {

    FUNC_LOG;

	TRect lineRect;

	// First get the rect for one line

	iLayout->GetLineRect(0, lineRect);

	TRect rect = Rect();

	TInt lines = rect.Height()/lineRect.Height();

	return lines;

    }

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

// CNcsEditor::PositionChanged() const

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

//

void CNcsEditor::PositionChanged()

    {    

    FUNC_LOG;

    if( iTextView )

        {

        TRect displayRect=iBorder.InnerRect(Rect());

	    displayRect=iMargins.InnerRect(displayRect);

	    iTextView->SetViewRect(displayRect);

        }

    }

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

// CNcsEditor::TextHeight() const

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

//

TInt CNcsEditor::TextHeight() const

    {

    FUNC_LOG;

    return iLayout->FormattedHeightInPixels();

    }

#ifdef _DEBUG

// Is is meant for debugging.

// Break here to see what the values are.

void CNcsEditor::DebugDump()

    {

    FUNC_LOG;

	TInt bandHeight = iLayout->BandHeight();

	TInt firstDocPosFullyInBad = iLayout->FirstDocPosFullyInBand();

	TInt firstLineInBand = iLayout->FirstLineInBand();

	TInt pixelsAboveBand = iLayout->PixelsAboveBand();

    }

#endif

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

// CNcsEditor::SetTextColorL()

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

//

void CNcsEditor::SetTextColorL( TLogicalRgb aColor )

	{

    FUNC_LOG;

    TCharFormat charFormat;

    charFormat.iFontPresentation.iTextColor = aColor;

    TCharFormatMask charFormatMask;

    charFormatMask.SetAttrib( EAttColor );

    iGlobalCharFormat->SetL( charFormat, charFormatMask );

    GlobalText()->SetGlobalCharFormat( iGlobalCharFormat );

    NotifyNewFormatL();

    }

TBool CNcsEditor::HasSemicolonAtTheEndL() const

{

    HBufC* text = GetTextInHBufL();

    TBool result(EFalse);

    if ( text && text->Right(1).Compare(_L(";") ) == 0 )

        {

        result = ETrue;

        }

    delete text;

    text = NULL;

    return result;

}

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

// CNcsEditor::TrimmedTextLength()

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

//

TInt CNcsEditor::TrimmedTextLength()

    {

    FUNC_LOG;

    HBufC* text = NULL;

    TRAP_IGNORE( text = GetTextInHBufL() );

    TInt length = 0;

    if ( text )

        {

        text->Des().TrimAll();

        length = text->Des().Length();

        delete text;

        }

    return length;

    }

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

// CNcsEditor::EditObserver()

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

//

void CNcsEditor::EditObserver( TInt aStart, TInt aExtent )

    {

    FUNC_LOG;

    CEikRichTextEditor::EditObserver( aStart, aExtent );

    }

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

// CNcsEditor::UpdateColors

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

//

void CNcsEditor::UpdateColors()

    {

    FUNC_LOG;

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

	// <cmail> S60 Skin support

	const TInt error( AknsUtils::GetCachedColor( skin, iTextColor,

    	KAknsIIDQsnTextColors, EAknsCIQsnTextColorsCG6 ) );

    if ( error )

    	{

        iTextColor = KRgbBlack;

        }

    // </cmail>

    TRAP_IGNORE( SetTextColorL( iTextColor ) );

    }

// <cmail>

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

// CNcsEditor::SetNcsFontType

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

//

void CNcsEditor::SetNcsFontType( NcsUtility::TNcsLayoutFont aFontType )

    {

    FUNC_LOG;

    iNcsFontType = aFontType;

    }

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

// CNcsEditor::UpdateFontSize

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

//

void CNcsEditor::UpdateFontSize()

    {

    FUNC_LOG;

    /*TCharFormat charFormat;

    TCharFormatMask charFormatMask;

    TNcsMeasures m = NcsUtility::Measures();

    // <cmail>

    CFont* editorFont = NULL;

    TRAPD( err, editorFont = NcsUtility::GetNearestFontL(

    	EAknLogicalFontPrimarySmallFont,

    	m.iEditorFontHeightPx)

    	);

    if( err == KErrNone )

    	{

    	*/

    TRAP_IGNORE( UpdateFontL() );

//    CEikonEnv::Static()->ScreenDevice()->ReleaseFont( editorFont );

//	}

    }

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

// CNcsEditor::UpdateFontL

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

//

void CNcsEditor::UpdateFontL()

    {

	FUNC_LOG;

    TCharFormat charFormat;

    TCharFormatMask charFormatMask;

    charFormat.iFontSpec = NcsUtility::GetLayoutFont( Rect(), iNcsFontType )->FontSpecInTwips();

    charFormat.iFontPresentation.iTextColor = iTextColor;

    charFormatMask.SetAttrib(EAttColor);

    charFormatMask.SetAttrib(EAttFontTypeface);

    charFormatMask.SetAttrib(EAttFontHeight);

    iGlobalCharFormat->SetL(charFormat, charFormatMask);

    GlobalText()->SetGlobalCharFormat( iGlobalCharFormat );

    }

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

// CNcsEditor::GetLabelText

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

//

const TDesC& CNcsEditor::GetLabelText() const

    {

	return KNullDesC;

    }

// <cmail> Platform layout change

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

// CNcsEditor::LayoutLineCount

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

//

TInt CNcsEditor::LayoutLineCount() const

    {

    return IsVisible() ? LineCount() : 0;

    }

// </cmail> Platform layout change

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

// CNcsEditor::GetNumChars

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

//

TInt CNcsEditor::GetNumChars() const

    {

    FUNC_LOG;

	TInt cnt = iLayout->DocumentLength();

	return cnt;

    }

TInt CNcsEditor::GetLineHeightL() const

    {

    FUNC_LOG;

	TPoint pos;

	TRect rect;

	iLayout->DocPosToXyPosL(0, pos);

	iLayout->GetLineRect(pos.iY,rect);

	return rect.Height();

    }

TInt CNcsEditor::DocumentLength() const

    {

    FUNC_LOG;

	return iLayout->DocumentLength();

    }

TInt CNcsEditor::PixelsAboveBand() const

    {

    FUNC_LOG;

	return iLayout->PixelsAboveBand();

    }