/*

* Copyright (c) 2003 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:     Takes care of storing and serving the bitmaps

*               to be animated along with their properties

*

*/

#include "CBmpAnimModel.h"

// C'tor

CBmpAnimModel::CBmpAnimModel()

    {

    }

// D'tor

CBmpAnimModel::~CBmpAnimModel()

    {

    // Delete item array

    if (iItems)

        {

        iItems->ResetAndDestroy();

        }

    delete iItems;

    }

// Two-phase constructor, initialises member arrays and stuff

void CBmpAnimModel::ConstructL(CBmpAnimSettings* aSettings)

    {

    // Create item array

    iItems = new(ELeave) CArrayPtrFlat<CBmpAnimItem>(

        KBmpAnimItemArrayGranularity);

    iSettings = aSettings;

    }

// Number of items query

TInt CBmpAnimModel::NumberOfItems() const

    {

    return iItems ? iItems->Count() : 0;

    }

// Add an item to the end of the array

void CBmpAnimModel::AppendItemL(CBmpAnimItem* aItem)

    {

    // Sanity check

    if (!iItems)

        {

        ASSERT(EFalse);

        return;

        }

    // Stash it in

    iItems->AppendL(aItem);

    }

// Insert an item at <aIndex>. Space must be reserved.

void CBmpAnimModel::InsertItemL(TInt aIndex, CBmpAnimItem* aItem)

    {

    if ((iItems) && (aIndex >= 0) && (aIndex <= NumberOfItems()))

        {

        // Squeeze it in

        iItems->InsertL(aIndex, aItem);

        }

    else

        {

        ASSERT(EFalse);

        }

    }

// Delete item at <aIndex>

void CBmpAnimModel::DeleteItemL(TInt aIndex)

    {

    if ((iItems) && (aIndex >= 0) && (aIndex <= NumberOfItems()))

        {

        // Grab hold of the item for deletion, remove from array

        // and compress the array

        CBmpAnimItem* ptr = iItems->At(aIndex);

        iItems->Delete(aIndex);

        delete ptr;

        iItems->Compress();

        }

    else

        {

        ASSERT(EFalse);

        }

    }

// Delete all Items

void CBmpAnimModel::DeleteAll()

    {

    if (iItems)

        {

        iItems->ResetAndDestroy();

        }

    }

// Get item at position <aIndex>

CBmpAnimItem* CBmpAnimModel::ItemAt(TInt aIndex) const

    {

    if ((iItems) && (aIndex >= 0) && (aIndex < NumberOfItems()))

        {

        return iItems->At(aIndex);

        }

    else

        {

        return NULL;

        }

    }

// Get next item in animation sequence. Returns NULL at the end of the

// sequence (or if there are no items at all), and wraps around to the

// beginning, so that next call again returns an item.

CBmpAnimItem* CBmpAnimModel::NextItem(TBool& aWrapped)

    {

    CBmpAnimItem* pItem = ItemAt(iCurrentItem++);

    if (pItem)

        {

        aWrapped = EFalse;

        }

    else

        {

        // Apparently there are no more items - wrap around and set indicator

        iCurrentItem = 0;

        aWrapped = ETrue;

        pItem = ItemAt(iCurrentItem++);

        }

    return pItem;

    }

// Reserve space for <aCount> Items

void CBmpAnimModel::SetReserveL(TInt aCount)

    {

    if ((iItems) && (aCount >= NumberOfItems()))

        {

        iItems->SetReserveL(aCount);

        }

    }

// --- private functions ---

//  End of File