/*

* 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:

*

*/

#include "mmgridcontainer.h"

#include "mmgridmodel.h"

#include "mmlistboxmodel.h"

#include "mmmarqueeadapter.h"

#include <AknsLayeredBackgroundControlContext.h>

#include <AknsListBoxBackgroundControlContext.h>

#include <layoutmetadata.cdl.h>

#include "hnsuitemodel.h"

#include "mmgrid.h"

#include "mmwidgetsconstants.h"

#include "hnglobals.h"

#include "mmpostevaluationprocessor.h"

#include "mmlistboxitemdrawer.h"

#include "mmdraweranimator.h"

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

// CMmGridContainer::NewLC()

// Two-phased constructor.

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

//

CMmGridContainer* CMmGridContainer::NewLC( const TRect& aRect,

        MObjectProvider* aObjectProvider, CMmTemplateLibrary* aLibrary )

    {

    CMmGridContainer* self = new( ELeave ) CMmGridContainer();

    CleanupStack::PushL( self );

    self->ConstructL( aRect, aObjectProvider, aLibrary );

    return self;

    }

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

// CMmGridContainer::NewL()

// Two-phased constructor.

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

//

CMmGridContainer* CMmGridContainer::NewL( const TRect& aRect,

        MObjectProvider* aObjectProvider, CMmTemplateLibrary* aLibrary )

    {

    CMmGridContainer* self = NewLC( aRect, aObjectProvider, aLibrary);

    CleanupStack::Pop( self );

    return self;

    }

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

// CMmGridContainer::CMmGridContainer()

// C++ default constructor

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

//

CMmGridContainer::CMmGridContainer()

    {

    }

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

//

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

//

CAknGrid* CMmGridContainer::Grid()

    {

    return iGrid;

    }

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

// CMmGridContainer::~CMmGridContainer()

// Destructor

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

//

CMmGridContainer::~CMmGridContainer()

    {

    delete iGrid;

    }

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

//

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

//

THnSuiteWidgetType CMmGridContainer::WidgetType()

	{

	return EGridWidget;

	}

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

// CMmGridContainer::ConstructL()

// 2nd phase constructor

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

//

void CMmGridContainer::ConstructL( const TRect& aRect, MObjectProvider* aObjectProvider,

        CMmTemplateLibrary* aTemplateLibrary )

    {

    CMmWidgetContainer::ConstructL();

    SetMopParent( aObjectProvider );

    CreateWindowL(); // Creates window.

    iWidget = CreateGridL(aTemplateLibrary);

    iWidget->SetListBoxObserver( this );

    SetRect( aRect ); // Sets rectangle of frame.

    ActivateL(); // Activates window. ( Ready to draw )

    SetupDrawer();

    SetHighlightVisibilityL( !AknLayoutUtils::PenEnabled() );

    iPostProcessor = CMmPostEvaluationProcessor::NewL( *iDrawer );

    }

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

// CMmGridContainer::CreateGridL()

// Constructs listbox from resource, creates scroll bar and sets empty

// list background text.

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

//

CMmGrid* CMmGridContainer::CreateGridL( CMmTemplateLibrary* aTemplateLibrary )

    {

    iGrid = CMmGrid::NewL( this,

    		EAknListBoxSelectionList | EAknListBoxLoopScrolling | EAknListBoxDisableHighlight , aTemplateLibrary );

    iGrid->SetContainerWindowL( *this );

    iGrid->CreateScrollBarFrameL( ETrue );

    iGrid->SetPrimaryScrollingType(

    			CAknGridView::EScrollFollowsItemsAndLoops );

    iGrid->SetSecondaryScrollingType(

    			CAknGridView::EScrollFollowsGrid );

    iGrid->ScrollBarFrame()->SetScrollBarVisibilityL(

    		CEikScrollBarFrame::EAuto, CEikScrollBarFrame::EAuto );

    iGrid->ScrollBarFrame()->DrawBackground( EFalse, EFalse );

    return iGrid;

    }

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

//

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

//

void CMmGridContainer::SizeChanged()

    {

    CMmWidgetContainer::SizeChanged();

    if ( iGrid )

    	{

//    	iGrid->SetRect( Rect() );

        iGrid->SetupLayout();

        }

    }

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

//

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

//

void CMmGridContainer::SetEditModeL( TBool aIsEditMode )

    {

	if (aIsEditMode && !AknLayoutUtils::PenEnabled() )

		{

		iGrid->SetPrimaryScrollingType(

				CAknGridView::EScrollStops );

		iGrid->SetSecondaryScrollingType(

				CAknGridView::EScrollStops );

        }

    else

    	{

    	iGrid->SetPrimaryScrollingType(

    	    			CAknGridView::EScrollFollowsItemsAndLoops );

    	iGrid->SetSecondaryScrollingType(

    	    			CAknGridView::EScrollFollowsGrid );

    	}

	// In EditMode we allow Avkon to redraw scrollbar background

	// to prevent scrollbar flicking.

	// When edit mode is disabled, this redrawing causes performance problems

	// (and disabling it does not produce erroneous side-effects).

	if( aIsEditMode )

		{

	    iGrid->ScrollBarFrame()->DrawBackground( EFalse, ETrue );

		}

	else

		{

	    iGrid->ScrollBarFrame()->DrawBackground( EFalse, EFalse );

		}

    CMmWidgetContainer::SetEditModeL( aIsEditMode );

    }

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

//

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

//

EXPORT_C void CMmGridContainer::SetEmptyTextL(const TDesC& aText)

    {

    iGrid->SetEmptyGridTextL( aText );

    }

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

//

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

//

EXPORT_C void CMmGridContainer::SetDefaultHighlightL(  TBool aRedraw )

    {

    TInt defaultHighlight( 0 );

    SetManualHighlightL( defaultHighlight + DefaultHighlightOffset(), aRedraw );

    }

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

//

//

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

//

TInt CMmGridContainer::DefaultHighlightOffset()

	{

	TInt topVisibleItemIndex = iGrid->View()->TopItemIndex();

	TInt hiddenPixels = -iGrid->View()->ItemOffsetInPixels();

	if ( iGrid->View()->ItemIsPartiallyVisible( topVisibleItemIndex )

		&& hiddenPixels > iGrid->View()->ItemSize().iHeight / 2 )

		{

		topVisibleItemIndex += ColumnsInCurrentView();

		}

	return topVisibleItemIndex;

	}

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

//

//

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

//

CMmListBoxModel* CMmGridContainer::GetMmModel()

    {

    return iGrid->MmModel()->MmListBoxModel();

    }

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

//

//

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

//

void CMmGridContainer::SetItemDrawerAndViewBgContext(

		CAknsBasicBackgroundControlContext * aBgContext )

	{

	iGrid->SetItemDrawerAndViewBgContext (aBgContext);

	}

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

//

//

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

//

void CMmGridContainer::SetupWidgetLayoutL()

	{

	User::LeaveIfNull( iGrid );

	iGrid->SetupLayout();

	}

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

//

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

//

void CMmGridContainer::SetSuiteModelL( CHnSuiteModel* aModel )

    {

    CMmWidgetContainer::SetSuiteModelL( aModel );

    if ( aModel )

        {

        aModel->SetActiveL( !AknLayoutUtils::PenEnabled() );

        }

    }

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

//

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

//

void CMmGridContainer::SetHighlightVisibilityL( TBool aVisible )

    {

    CMmWidgetContainer::SetHighlightVisibilityL( aVisible );

    }

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

//

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

//

void CMmGridContainer::HandleItemAdditionL()

	{

	iGrid->HandleItemAdditionL();

	}

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

//

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

//

void CMmGridContainer::HandleItemRemovalL()

	{

	GetMmModel()->HandleSuiteEventL( ESuiteItemsRemoved, GetMmModel()->GetSuiteModel() );

	ValidateWidgetCurrentItemIndex();

	iDrawer->RemoveFloatingItems();

	if( IsEditMode() )

		{

		iDrawer->GetAnimator()->SetNextRedrawToWholeScreen();

		}

	CacheWidgetPosition();

	iGrid->HandleItemRemovalL();

	RestoreWidgetPosition();

	CacheWidgetPosition();

	if ( iCurrentHighlight != iGrid->CurrentItemIndex() )

		{

		iCurrentHighlight = iGrid->CurrentItemIndex();

		if( !iCurrentHighlight && !iGrid->Model()->NumberOfItems() )

			{

			iCurrentHighlight = KErrNotFound ;

			}

		CHnSuiteModel* suiteModel = GetSuiteModelL();

		if ( suiteModel )

		    {

		    suiteModel->SetSuiteHighlightL( iCurrentHighlight );

		    }

		}

	static_cast<CMmListBoxItemDrawer*>( iGrid->ItemDrawer() )->TrimCacheSize(

            GetMmModel()->NumberOfItems() );

	}

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

//

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

//

TInt CMmGridContainer::ColumnsInCurrentView()

	{

	CAknGridView* view ( (CAknGridView*) iGrid->View() );

	return view->NumberOfColsInView();

	}

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

//

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

//

TInt CMmGridContainer::RowsInCurrentView()

    {

    CAknGridView* view ( (CAknGridView*) iGrid->View() );

    return view->NumberOfRowsInView();

    }

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

//

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

//

void CMmGridContainer::DrawView()

    {

    iGrid->DrawView();

    }

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

//

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

//

void CMmGridContainer::SetVerticalItemOffset( TInt aOffset )

	{

	iGrid->SetVerticalItemOffset( aOffset );

	}

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

//

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

//

TInt CMmGridContainer::VerticalItemOffset() const

	{

	return iGrid->VerticalItemOffset();

	}

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

//

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

//

void CMmGridContainer::UpdateViewScrollBarThumbs()

	{

	iGrid->UpdateScrollBarThumbs();

	}

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

//

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

//

TBool CMmGridContainer::ItemIsVisible( TInt aItemIndex ) const

    {

    CListBoxView* v = iGrid->View();

    TRect itemRect( v->ItemPos( aItemIndex ), v->ItemSize( aItemIndex ) );

    TRect viewRect = v->ViewRect();

    TBool isVisible = EFalse;

    if ( itemRect.Intersects( viewRect ) )

        {

        TRect intersection = itemRect;

        intersection.Intersection( viewRect );

        isVisible = intersection.Height() > 1 && intersection.Width() > 1;

        }

    return isVisible;

    }

// End of File