/*

* 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:  A visualizer for empty tree root's data.

*

*/

#include "emailtrace.h"

#include "fstreeplainonelineitemdata.h"

#include "fstreeplainrootvisualizer.h"

#include "fstextstylemanager.h"

#include <alf/alfcontrol.h>

#include <alf/alfanchorlayout.h>

#include <alf/alftextvisual.h>

#include <alf/alftexture.h>

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

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

// Two-phased constructor.

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

//

EXPORT_C CFsTreePlainRootVisualizer* CFsTreePlainRootVisualizer::NewL( 

                                                  CAlfControl& aOwnerControl )

    {

    FUNC_LOG;

    CFsTreePlainRootVisualizer* self = 

        new( ELeave ) CFsTreePlainRootVisualizer( aOwnerControl );

    CleanupStack::PushL( self );

    self->ConstructL( );

    CleanupStack::Pop( self );

    return self;

    }

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

// C++ destructor.

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

//

CFsTreePlainRootVisualizer::~CFsTreePlainRootVisualizer() 

    {

    FUNC_LOG;

    }

// from base class MFsTreeNodeVisualizer

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

// Returns visualizer's type.

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

//

TFsTreeItemVisualizerType CFsTreePlainRootVisualizer::Type() const

    {

    FUNC_LOG;

    return EFsTreePlainRootVisualizer;

    }

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

// From class MFsTreeItemVisualizer.

// Sets the size of the item visualization when item is not in expanded 

// state. The value is taken from layout manager. 

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

//

void CFsTreePlainRootVisualizer::UpdateLayout( )

    {

    FUNC_LOG;

    }

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

// From class MFsTreeItemVisualizer.

//  A call to this function means that the visualization of empty root 

// becomes visible and should draw itself within specified parent layout. 

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

//

void CFsTreePlainRootVisualizer::ShowL( CAlfLayout& aParentLayout,

                                        const TUint /*aTimeout*/ )

    {

    FUNC_LOG;

    if (!iLayout)

        {

        iParentLayout = &aParentLayout;        

        iLayout = CAlfAnchorLayout::AddNewL(iOwnerControl, &aParentLayout);

        iLayout->SetSize(aParentLayout.Size().ValueNow().AsSize());

        if (!iTextVisual)

            {

            iTextVisual = CAlfTextVisual::AddNewL( 

                    iOwnerControl, iLayout );

            iTextVisual->SetFlag( EAlfVisualFlagIgnorePointer );

            }

        }

    }

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

// A call to this function means that the item is requested to update its

// visual content.

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

//

void CFsTreePlainRootVisualizer::UpdateL( const MFsTreeItemData& aData,

                                          TBool /*aFocused*/,

                                          const TUint /*aLevel*/,

                                          CAlfTexture*& /*aMenuIcon*/,

                                          const TUint /*aTimeout*/,

                                          TBool aUpdateData)

    {

    FUNC_LOG;

    if (aData.Type() == KFsTreePlainOneLineItemDataType)

        {

        const CFsTreePlainOneLineItemData* data = 

                    static_cast<const CFsTreePlainOneLineItemData*>(&aData);

        if ( iTextVisual && aUpdateData )

            {            

            iTextVisual->SetTextL(data->Data( ));

            iTextVisual->SetTextStyle(iTextStyleId);

            TAlfAlignHorizontal currTextAlign( EAlfAlignHCenter );            

            currTextAlign = CurrentTextAlignmentL( iTextAlign, &data->Data(), iTextVisual );

            iTextVisual->SetAlign( currTextAlign, EAlfAlignVCenter );

            iTextVisual->EnableShadow(iFlags & KFsTreeListItemTextShadow);

            if (!iIsCustomTextNormalColor)

                {//custom color not set, use color from skin - load it in case theme has changed

                iNormalTextColor = NormalStateTextSkinColor( );

                }

            iTextVisual->SetColor( iNormalTextColor );

            iTextVisual->SetWrapping(CAlfTextVisual::ELineWrapBreak);

            TInt styleId = ModifiedStyleIdL( );

            iTextVisual->SetTextStyle( styleId );

            }

        }

    }

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

// From class MFsTreeItemVisualizer.

// A call to this function means that the the empty root visualization 

// should become hidden.

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

//

void CFsTreePlainRootVisualizer::Hide( const TInt aTimeout )

    {

    FUNC_LOG;

    if ( iLayout )

        {

        iParentLayout->Remove(iLayout, aTimeout);

        iLayout->RemoveAndDestroyAllD();

        iLayout = NULL;

        iParentLayout = NULL;

        iTextVisual = NULL;

        }

    }

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

//  From MFsTreeItemVisualizer.

//  This method marquees the text in tree item if it is too long.

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

//

void CFsTreePlainRootVisualizer::MarqueeL(const TFsTextMarqueeType /*aMarqueeType*/,

                                          const TUint /*aMarqueeSpeed*/,

                                          const TInt /*aMarqueeStartDelay*/,

                                          const TInt /*aMarqueeCycleStartDelay*/,

                                          const TInt /*aMarqueeRepetitions*/)

    {

    FUNC_LOG;

    }

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

// C++ constructor.

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

//

CFsTreePlainRootVisualizer::CFsTreePlainRootVisualizer( 

                                                  CAlfControl& aOwnerControl )

    : CFsTreeNodeVisualizerBase( aOwnerControl ),

    iTextVisual(NULL)

    {

    FUNC_LOG;

    iTextAlign = EAlfAlignHCenter;

    }

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

// Second phase constructor.

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

//

void CFsTreePlainRootVisualizer::ConstructL( )

    {

    FUNC_LOG;

    CFsTreeNodeVisualizerBase::ConstructL();

    }

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

//  From MFsTreeItemVisualizer.

//  This method sets flag disable wrapping the text item.

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

//

void CFsTreePlainRootVisualizer::OffWrapping()

	{

	FUNC_LOG;

	}