author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 18 Jan 2010 20:34:07 +0200 | |
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/* |
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* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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#ifndef MCLFCUSTOMSORTER_H |
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#define MCLFCUSTOMSORTER_H |
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// INCLUDES |
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#include <e32std.h> |
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// FORWARD DECLARATIONS |
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class MCLFItem; |
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class MCLFCustomSorterExt; |
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// CLASS DECLARATION |
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|
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/** |
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* Custom sorter interface for Content Listing Framework. |
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* With this interface, client can create a customized sorter for |
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* sorting items in list model. For example, items in the List Model |
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* can be sorted by Item IDs or it can be randomized.<br><br> |
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* Example: |
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* @code |
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* // Example sorter that sorts items by Item IDs |
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* void CMySorter::SortItemsL( RPointerArray<MCLFItem>& aItemArray ) |
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* { |
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* TLinearOrder<MCLFItem> sorter( CMySorter::Compare ); |
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* aItemArray.Sort( sorter ); |
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* } |
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* |
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* TInt CMySorter::Compare( const MCLFItem& aFirst, const MCLFItem& aSecond ) |
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* { |
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* return aFirst.ItemId() - aSecond.ItemId(); |
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* } |
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* @endcode |
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* |
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* Custom sorter is activated and removed by calling method |
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* MCLFItemListModel::SetCustomSorter |
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* |
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* @lib ContentListingFramework.lib |
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* @since S60 3.1 |
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*/ |
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class MCLFCustomSorter |
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{ |
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public: // New functions |
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/** |
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* Abstract method for sorting Content Listing Framework items in a list |
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* model. This method is called when the sorting process is executed |
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* by calling refresh to the List Model. |
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* @since S60 3.1 |
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* @param aItemArray The array to sort. Contains all items of |
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* the List Model. |
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*/ |
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virtual void SortItemsL( RPointerArray<MCLFItem>& aItemArray ) = 0; |
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protected: |
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/** |
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* Destructor. |
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*/ |
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virtual ~MCLFCustomSorter() {} |
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private: // Extension interface |
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/** |
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* This member is internal and not intended for use. |
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*/ |
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virtual MCLFCustomSorterExt* Extension() { return NULL; } |
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}; |
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#endif // MCLFCUSTOMSORTER_H |
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// End of File |