/*

* 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 );

    }

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

//

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

//

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->View()->SetDisableRedraw( ETrue ); //prevention scroll view

  iGrid->HandleItemRemovalL();

  iGrid->View()->SetDisableRedraw( EFalse );

  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