/*

* Copyright (c)  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:  List box defintion for Location System UI

*

*/

// SYSTEM INCLUDES 

#include <eikclbd.h>

#include <gulicon.h>

#include <AknIconArray.h>

// USER INCLUDES

#include "lclistbox.h"

#include "lclistboxmodel.h"

#include "lclocationappinfo.h"

// CONSTANT DEFINTION

const TInt KLcViewListboxGranularity = 2;

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

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

// CLcListBox::CLcListBox

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

//

CLcListBox::CLcListBox()

    {

    // C++ Default constructor. No allocations or functions which can Leave

    // should be called from here.

    }

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

// CLcListBox::~CLcListBox

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

//

CLcListBox::~CLcListBox()

    {

    // C++ Destructor. Free all resources associated with this class.

    // Delete the listbox model

    delete iListBoxModel;

    }

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

// void CLcListBox::ConstructL

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

//

void CLcListBox::ConstructL( 	   CLcLocationAppInfoArray*      aAppArray,

							 const CCoeControl* 		   		 aParent,

							 	   MEikListBoxObserver*			 aObserver )

    {

    // Create the List box model using the Application Info array

    iListBoxModel = CLcListBoxModel::NewL( aAppArray );    

    // Call the base class constructor

    CAknSingleLargeStyleListBox::ConstructL( aParent, EAknListBoxSelectionList );

    // If the parent window has been set, the set it as the Container window

    if ( aParent )

    	{

    	SetContainerWindowL( *aParent );

    	}

    // If the list box observer has been set then set ot to the list box

    if ( aObserver )

    	{

    	SetListBoxObserver( aObserver );

    	}

    CreateScrollBarFrameL( ETrue );

    ScrollBarFrame()->SetScrollBarVisibilityL( CEikScrollBarFrame::EOff,

                                               CEikScrollBarFrame::EAuto );

    // The ownership of the list box model is retained with the Container.

    // This is because the model contains the additional functionality of

    // changing the settings values in addition to retreiving it.                                                       

    Model()->SetItemTextArray( iListBoxModel );  

    Model()->SetOwnershipType( ELbmDoesNotOwnItemArray );                                                          

    UpdateIconsL();    

   	// ItemDrawer()->ColumnData()->SetIconArray( NULL );

    ItemDrawer()->ColumnData()->EnableMarqueeL( ETrue );

    }

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

// CLcListBox* CLcListBox::NewL

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

//

CLcListBox* CLcListBox::NewL( 		

									CLcLocationAppInfoArray*     aAppArray,

							  const CCoeControl* 		   		 aParent,

							  		MEikListBoxObserver*	     aObserver )

    {

    CLcListBox* self = new ( ELeave ) CLcListBox;

    CleanupStack::PushL( self );

    self->ConstructL( aAppArray, aParent, aObserver );

    CleanupStack::Pop( self );

    return self;

    }

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

// void CLcListBox::UpdateListBoxContents

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

//

void CLcListBox::UpdateListBoxContentsL( 

							CLcLocationAppInfoArray*      aAppArray )

    {

    // This function transfers the ownership of the Application information

    // array. So first we have to delete the existing array and then we can

    iListBoxModel->UpdateListBoxContents( aAppArray );

    UpdateIconsL();

    }

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

// CLocPsySettingsContainer::UpdateIconsL

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

void CLcListBox::UpdateIconsL()

    {

    CLcLocationAppInfoArray& iconArray( iListBoxModel->AppInfoArray());

    CAknIconArray* icons = new( ELeave ) CAknIconArray( KLcViewListboxGranularity );

    CleanupStack::PushL( icons );

	// Append each of the Icon elements to this array.

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

		{

		TRAPD( error, icons->AppendL( iconArray[i].IconL()));

		if ( error )

			{

			User::Leave( error );

			}

		}

    // Destroy the old icons because SetIconArray() does not destroy them.

    CArrayPtr<CGulIcon>* oldIcons = ItemDrawer()->ColumnData()->IconArray();

    if( oldIcons )

        {

        oldIcons->ResetAndDestroy();

        delete oldIcons;

        }

    // Transfer ownership of icon array to the lbx.

    // SetIconArray() Does not delete the Old icon array

    ItemDrawer()->ColumnData()->SetIconArray( icons );

    CleanupStack::Pop( icons );

    // Draws listbox again

    HandleItemAdditionL();

    HandleItemRemovalL();

    }