/*

* Copyright (c) 2005 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 CPostcardController class methods

*

*/

// INCLUDE FILES

#include <s32file.h>                // for RFileReadStream

#include <data_caging_path_literals.hrh> 

#include <gulicon.h>                // CGulIcon

#include <AknIndicatorContainer.h>

#include <AknLayout.lag>            // AKN_LAYOUT_WINDOW_screen

#include <aknenv.h>                 // for EditingStateIndicator

#include <AknsConstants.h>           // For skinnable icons

#include <AknsBasicBackgroundControlContext.h> // For skin stuff, too

#include <AknsDrawUtils.h>

#include <applayout.cdl.h>                 // LAF

#include <aknlayoutscalable_apps.cdl.h>

#include <avkon.rsg>

#include <AknsUtils.h>              // For CreateIconL

#include <AknUtils.h>               // For AknLayoutUtils

#include <AknIconUtils.h>           // For AknIconUtils

#include <postcard.mbg>				// For Postcard icons

#include "PostcardController.h"

#include "PostcardLaf.h"

#include "PostcardPointerObserver.h"

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

// CPostcardController::NewL( )

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

CPostcardController* CPostcardController::NewL( CPostcardDocument& aDocument

#ifdef RD_SCALABLE_UI_V2

    , MPocaPointerEventObserver& aObserver

#endif

    )

    {

    CPostcardController* self = new ( ELeave ) CPostcardController( aDocument

#ifdef RD_SCALABLE_UI_V2

        , aObserver

#endif

        );

    CleanupStack::PushL( self );

    self->ConstructL( );

    CleanupStack::Pop( self );

    return self;

    }

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

// CPostcardController::ConstructL

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

void CPostcardController::ConstructL( )

    {

    CreateWindowL( );

    LoadIconsL( );

    RefreshCoordinates( );

    TRect rectForSkin = PostcardLaf::RelativeMainPostcardPane( );

    iBgContext = CAknsBasicBackgroundControlContext::NewL( 

            KAknsIIDQsnBgAreaMainMessage, rectForSkin, EFalse );

    // We don't want to flash image side at startup.

    iFocusedItem = EPostcardNone;   

    }

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

// CPostcardController::CPostcardController()

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

CPostcardController::CPostcardController( CPostcardDocument& aDocument

#ifdef RD_SCALABLE_UI_V2

    , MPocaPointerEventObserver& aObserver

#endif

    ) :  

    iDocument( aDocument )

#ifdef RD_SCALABLE_UI_V2

    , iEventObserver( aObserver )

#endif

    {

#ifdef RD_SCALABLE_UI_V2

    iPenEnabled = AknLayoutUtils::PenEnabled();

#endif

    }

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

// CPostcardController::~CPostcardController()

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

CPostcardController::~CPostcardController( )

    {

    delete iFrontBg;

    delete iInsertImageBg;

    delete iImage;

    delete iInsertImage;

    delete iBgBg;

    delete iStamp;

    delete iEmptyGreetingFocused;

    delete iEmptyGreeting;

    delete iGreeting;

    delete iEmptyAddressFocused;

    delete iEmptyAddress;

    delete iAddress;

    if( iGreetingLines )

        {

        iGreetingLines->ResetAndDestroy( );

        delete iGreetingLines;    

        }

    if( iRecipientLines )

        {

        iRecipientLines->ResetAndDestroy( );

        delete iRecipientLines;

        }

    delete iUpperArrow;

    delete iLowerArrow;

    delete iBgContext;

    }

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

// CPostcardController::ActivateL( )

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

void CPostcardController::ActivateL( )

    {

    SetRect( PostcardLaf::MainPostcardPane( ) );

    SizeChanged();

    MakeVisible( ETrue );

    SetFocus( ETrue );

    CCoeControl::ActivateL();

    DrawNow( );    

    }

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

// CPostcardController::CountComponentControls() const

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

TInt CPostcardController::CountComponentControls( ) const

    {

    return 0;

    }

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

// CPostcardController::ComponentControl(TInt aIndex) const

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

CCoeControl* CPostcardController::ComponentControl( TInt /*aIndex*/ ) const

    {

    return NULL;

    }

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

// CPostcardController::Draw(const TRect& aRect) const

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

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

    {

    // Lets draw the skin stuff + bg stuff first

    DrawBackground( );

    // Now we draw the real content

    switch ( iFocusedItem )

        {

        case EPostcardImage:

            DrawImageSide();

            break;

        case EPostcardText:

        case EPostcardRecipient:

            DrawTextSide(); 

            break;

        case EPostcardNone:

        default:

            break;

        }

    }

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

// CPostcardController::DrawBackground( ) const

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

void CPostcardController::DrawBackground( ) const

    {

    CWindowGc& gc = SystemGc();

    TRect rect( PostcardLaf::RelativeMainPostcardPane( ) );

    MAknsSkinInstance* skin = AknsUtils::SkinInstance();

    MAknsControlContext* cc = AknsDrawUtils::ControlContext( this );

    if( !AknsDrawUtils::Background( skin, cc, this, gc, rect ) )

		{

	    // clear entire header area.

	    gc.SetBrushColor( AKN_LAF_COLOR( 0 ) );

		gc.SetBrushStyle( CGraphicsContext::ESolidBrush );

		gc.SetPenStyle( CGraphicsContext::ENullPen );

		gc.DrawRect( rect );

		}

    gc.SetBrushStyle(CGraphicsContext::ENullBrush); // To ensure masking

    // Background image

    if( iFocusedItem == EPostcardImage )

        {

        DrawIcon( iImage?*iFrontBg:*iInsertImageBg,iFrontBgC);

        }

    else if ( iFocusedItem == EPostcardRecipient ||

              iFocusedItem == EPostcardText )

        {

        DrawIcon( *iBgBg, iBgBgC );

        }

    if ( iFocusedItem != EPostcardNone ) // Prevents unnecessary drawing of arrows at startup.

        {

        DrawScrollArrows();

        }

    }

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

// CPostcardController::DrawImageSide( ) const

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

void CPostcardController::DrawImageSide( ) const

    {

    // Draw focused image / insert icon

    if( iImage )

    	{ // Lets resize the image rect for the image

        TRect imageRect = iImageC;

    	TSize imageSize = iImage->Bitmap()->SizeInPixels();

		TSize rectSize = imageRect.Size( );

        // Image size matches the screen rectangle size unless

        // there has been a layout switch. In that case DrawBitmap()

        // is used to scale bitmap to a screen. Otherwise image is

        // drawn using BitBlt.

        TInt diffX = rectSize.iWidth - imageSize.iWidth;

        TInt diffY = rectSize.iHeight - imageSize.iHeight;

        const TInt KMaxDiff = 2;

        if( Abs( diffX ) > KMaxDiff && Abs( diffY ) > KMaxDiff )

            {

            const TInt KScaling = 1024;

            // Adjust screen rectangle so that it matches the image x/y ratio

            TInt newWidth = rectSize.iWidth * KScaling;

            TInt newHeight =

                ( imageSize.iHeight * newWidth ) / imageSize.iWidth;

            if ( newHeight > rectSize.iHeight * KScaling )

                {

                newHeight = rectSize.iHeight * KScaling;

                newWidth =

                    ( imageSize.iWidth * newHeight ) / imageSize.iHeight;

                }

            imageRect.Shrink( ( rectSize.iWidth - newWidth / KScaling ) / 2,

                ( rectSize.iHeight - newHeight / KScaling ) / 2 );

    	    TRect srcRect( iImage->Bitmap()->SizeInPixels() );

    	    SystemGc().DrawBitmap( imageRect, iImage->Bitmap(), srcRect );

            }

        else

            {

            TInt deltaX = diffX > 0 ? ( diffX + 1 ) / 2 : 0;

            TInt deltaY = diffY > 0 ? ( diffY + 1 ) / 2 : 0;

            imageRect.Shrink( deltaX, deltaY );

            DrawIcon( *iImage, imageRect );

            }

    	}

    else

        {

        DrawIcon( *iInsertImage, iInsertImageC );

        }

    }

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

// CPostcardController::DrawTextSide( ) const

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

void CPostcardController::DrawTextSide( ) const

    {

	// Draw stamp

	DrawIcon( *iStamp, iStampC );

	// Draw possible greeting and address bitmaps

	if( iGreeting )

	    {

	    DrawIcon( *iGreeting, iGreetingC );

	    }

	if( iAddress )

	    {

	    DrawIcon( *iAddress, iAddressC );

	    }

	// Draw focus lines

    DrawFocus( );

    }

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

// CPostcardController::DrawIcon()

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

void CPostcardController::DrawIcon( const CGulIcon& aIcon, const TRect& aRect ) const

    {

    if ( aIcon.Mask( ) )

        {

        SystemGc( ).BitBltMasked( aRect.iTl, aIcon.Bitmap( ), aRect.Size( ) , aIcon.Mask( ), EFalse ); // was EFalse

        }

    else

        {

        SystemGc( ).BitBlt( aRect.iTl, aIcon.Bitmap( ), aRect.Size( ) );

        }

    }

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

// CPostcardController::DrawScrollArrows()

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

void CPostcardController::DrawScrollArrows() const

    {

    // Scroll arrows. Behaviour depends on whether we are in editor or 

    // viewer mode.

    if ( iDocument.MessageType() != EPostcardSent )

        {

        DrawIcon( iFocusedItem != EPostcardImage? *iLowerArrow : *iUpperArrow, 

                  iFocusedItem != EPostcardImage? iLowerArrowC : iUpperArrowC );

        }

    else

        {

        DrawIcon( iFocusedItem != EPostcardImage? *iUpperArrow : *iLowerArrow, 

                  iFocusedItem != EPostcardImage? iUpperArrowC : iLowerArrowC );

        }

    }

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

// CPostcardController::ReLoadIconsL()

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

void CPostcardController::ReLoadIconsL( )

    {

    // Delete old ones, since new skin might have new icons.

    delete iFrontBg;

    iFrontBg = NULL;

    delete iInsertImageBg;

    iInsertImageBg = NULL;

    delete iInsertImage;

    iInsertImage = NULL;

    delete iBgBg;

    iBgBg = NULL;

    delete iStamp;

    iStamp = NULL;

    delete iEmptyGreetingFocused;

    iEmptyGreetingFocused = NULL;

    delete iEmptyGreeting;

    iEmptyGreeting = NULL;

    delete iEmptyAddressFocused;

    iEmptyAddressFocused = NULL;

    delete iEmptyAddress;

    iEmptyAddress = NULL;

    delete iUpperArrow;

    iUpperArrow = NULL;

    delete iLowerArrow;

    iLowerArrow = NULL;

    if ( iBgContext )

        {

        delete iBgContext;

        iBgContext = NULL;

        TRect rectForSkin = PostcardLaf::RelativeMainPostcardPane();

        iBgContext = CAknsBasicBackgroundControlContext::NewL( 

                KAknsIIDQsnBgAreaMainMessage, rectForSkin, EFalse );

        }

    // Load icons from active skin context.

    LoadIconsL();

    // Set size and position for the icons.

    RefreshCoordinates();

    // Draw again, since icons or background context might have changed.

    DrawDeferred();

    }

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

// CPostcardController::LoadIconsL()

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

void CPostcardController::LoadIconsL( )

    {

    TParse parseDrive;

    parseDrive.Set( iDocument.AppFullName( ), NULL, NULL );

    TPtrC drive = parseDrive.Drive( );

    TParse parse;

    parse.Set( KPostcardMifFile, &KDC_APP_BITMAP_DIR, NULL );

    TFileName fileName( parse.FullName( ) );

    fileName.Insert( 0, drive );

    iFrontBg = DoLoadIconL(

        KAknsIIDQgnGrafMmsPostcardFront,

        fileName, 

        EMbmPostcardQgn_graf_mms_postcard_front,

        EMbmPostcardQgn_graf_mms_postcard_front_mask

        );

    iInsertImageBg = DoLoadIconL(

        KAknsIIDQgnGrafMmsPostcardInsertImageBg,

        fileName, 

        EMbmPostcardQgn_graf_mms_postcard_insert_image_bg,

        EMbmPostcardQgn_graf_mms_postcard_insert_image_bg_mask

        );

    iInsertImage = DoLoadIconL(

        KAknsIIDQgnGrafMmsInsertImage,

        fileName, 

        EMbmPostcardQgn_graf_mms_insert_image,

        EMbmPostcardQgn_graf_mms_insert_image

        );

    iBgBg = DoLoadIconL(

        KAknsIIDQgnGrafMmsPostcardBack,

        fileName, 

		EMbmPostcardQgn_graf_mms_postcard_back,

		EMbmPostcardQgn_graf_mms_postcard_back_mask

		);

    iStamp = DoLoadIconL(

        KAknsIIDQgnIndiMmsPostcardStamp,

        fileName, 

		EMbmPostcardQgn_indi_mms_postcard_stamp,

		EMbmPostcardQgn_indi_mms_postcard_stamp_mask

        );

    iEmptyGreetingFocused = DoLoadIconL(

        KAknsIIDQgnPropMmsPostcardGreetingActive,

        fileName, 

		EMbmPostcardQgn_prop_mms_postcard_greeting_active,

		EMbmPostcardQgn_prop_mms_postcard_greeting_active_mask

        );

    iEmptyGreeting = DoLoadIconL(

        KAknsIIDQgnPropMmsPostcardGreetingInactive,

        fileName, 

        EMbmPostcardQgn_prop_mms_postcard_greeting_inactive,

        EMbmPostcardQgn_prop_mms_postcard_greeting_inactive_mask

        );

    iEmptyAddressFocused = DoLoadIconL(

        KAknsIIDQgnPropMmsPostcardAddressActive,

        fileName, 

        EMbmPostcardQgn_prop_mms_postcard_address_active,

        EMbmPostcardQgn_prop_mms_postcard_address_active_mask

        );

    iEmptyAddress = DoLoadIconL(

        KAknsIIDQgnPropMmsPostcardAddressInactive,

        fileName, 

        EMbmPostcardQgn_prop_mms_postcard_address_inactive,

        EMbmPostcardQgn_prop_mms_postcard_address_inactive_mask

        );

        KAknsIIDQgnIndiMmsPostcardUp,

        fileName, 

        EMbmPostcardQgn_indi_mms_postcard_up,

        EMbmPostcardQgn_indi_mms_postcard_up_mask

        );

        KAknsIIDQgnIndiMmsPostcardDown,

        fileName, 

        EMbmPostcardQgn_indi_mms_postcard_down,

        EMbmPostcardQgn_indi_mms_postcard_down_mask

        );

    // AppUi fills the other member icon variables

    }

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

// CPostcardController::DoLoadIconLC()

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

//

CGulIcon* CPostcardController::DoLoadIconL( 

                                const TAknsItemID& aId,

                                const TDesC& aFileName,

                                const TInt aFileBitmapId,

                                const TInt aFileMaskId  )

    {

    CGulIcon* icon = NULL;

    icon = AknsUtils::CreateGulIconL(

        AknsUtils::SkinInstance(),

        aId,

        aFileName,

        aFileBitmapId,

        aFileMaskId