/*

* 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:  Custom draw component for message editor.

*

*/

#include "emailtrace.h"

#include <AknsUtils.h>

#include <AknsSkinInstance.h>

#include <AknsConstants.h>

#include "ncscustomdraw.h"

#include "ncseditor.h"

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

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

// CNcsCustomDraw::CNcsCustomDraw

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

//

CNcsCustomDraw::CNcsCustomDraw( 

    const MLafEnv& aEnv,

    const CCoeControl& aControl,

    CLafEdwinCustomDrawBase* aCustomDrawer,

    CNcsEditor* aEditor,

    TBool aHeaderField ) :

    CLafEdwinCustomDrawBase( aEnv, aControl ), iCustomDrawer( aCustomDrawer ),

    iEditor( aEditor ), iHeaderField( aHeaderField )

    {

    FUNC_LOG;

    }

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

// CNcsCustomDraw::~CNcsCustomDraw

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

//

CNcsCustomDraw::~CNcsCustomDraw()

    {

    FUNC_LOG;

    delete iCustomDrawer;

    }

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

// CNcsCustomDraw::UpdateColors

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

//

void CNcsCustomDraw::UpdateColors()

    {

    FUNC_LOG;

    iColors = 0;

    TInt err = KErrNotFound;

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    if ( iHeaderField )

        {

        err = AknsUtils::GetCachedColor(

            skin,

            iBackgroundColor,

            KAknsIIDFsOtherColors,

            EAknsCIFsOtherColorsCG12 );

        if ( err == KErrNone )

            {

            SetHasColor( EColorBackground );

            }

        }

    err = AknsUtils::GetCachedColor(

        skin,

        iSelectionTextColor,

        KAknsIIDFsTextColors,

        EAknsCIFsTextColorsCG5 );

    if ( err == KErrNone )

        {

        SetHasColor( EColorSelectionText );

        }

    err = AknsUtils::GetCachedColor(

        skin,

        iSelectionBackgroundColor,

        KAknsIIDFsHighlightColors,

        EAknsCIFsHighlightColorsCG2 );

    if ( err == KErrNone )

        {

        SetHasColor( EColorSelectionBackground );

        }

    }

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

// CNcsCustomDraw::DrawBackground

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

//

void CNcsCustomDraw::DrawBackground(

    const TParam& aParam,

    const TRgb& aBackground,

    TRect& aDrawn ) const

    {

    FUNC_LOG;

    // Use custom drawing for fields with background color. Othwerwise use

    // the base implementation which draws white background.

    if ( HasColor( EColorBackground ) )

        {

        iCustomDrawer->DrawBackground( aParam, iBackgroundColor, aDrawn );

        }

    else

        {

        CLafEdwinCustomDrawBase::DrawBackground( aParam, aBackground, aDrawn );

        }

    }

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

// CNcsCustomDraw::DrawLineGraphics

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

//

void CNcsCustomDraw::DrawLineGraphics(

    const TParam& aParam,

    const TLineInfo& aLineInfo ) const

    {

    FUNC_LOG;

    iCustomDrawer->DrawLineGraphics( aParam, aLineInfo );

    }

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

// CNcsCustomDraw::DrawText

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

//

void CNcsCustomDraw::DrawText(

    const TParam& aParam,

    const TLineInfo& aLineInfo,

    const TCharFormat& aFormat,

    const TDesC& aText,

    const TPoint& aTextOrigin,

    TInt aExtraPixels ) const

    {

    FUNC_LOG;

    iCustomDrawer->DrawText(

        aParam,

        aLineInfo,

        aFormat,

        aText,

        aTextOrigin,

        aExtraPixels );

    }

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

// CNcsCustomDraw::SystemColor

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

//

TRgb CNcsCustomDraw::SystemColor( TUint aColorIndex, TRgb aDefaultColor ) const

    {

    FUNC_LOG;

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    TInt err = KErrNotFound;

    TRgb ret = aDefaultColor;

    if ( aColorIndex == TLogicalRgb::ESystemSelectionForegroundIndex )

        {

        if ( HasColor( EColorSelectionText ) )

            {

            err = KErrNone;

            ret = iSelectionTextColor;

            }

        }

    else if ( aColorIndex == TLogicalRgb::ESystemSelectionBackgroundIndex )

        {

        if ( HasColor( EColorSelectionBackground ) )

            {

            err = KErrNone;

            ret = iSelectionBackgroundColor;

            }

        }

    if ( err != KErrNone )

        {

        return iCustomDrawer->SystemColor( aColorIndex, aDefaultColor );

        }

    else

        {

        return ret;

        }

    }

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

// CNcsCustomDraw::SetHasColor

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

//

void CNcsCustomDraw::SetHasColor( TColors aColor )

    {

    FUNC_LOG;

    iColors |= ( TInt )aColor;

    }

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

// CNcsCustomDraw::HasColor

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

//

TBool CNcsCustomDraw::HasColor( TColors aColor ) const

    {

    FUNC_LOG;

    TInt color = ( TInt )aColor;

    return iColors & color;

    }