--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videocollection/videocollectionwrapper/inc/videodatacontainer.h	Fri Apr 16 14:59:52 2010 +0300
@@ -0,0 +1,180 @@
+/*
+* Copyright (c) 2009 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: videodatacontainer class definition*
+*/
+
+#ifndef __VIDEODATACONTAINER_H__
+#define __VIDEODATACONTAINER_H__
+
+// INCLUDES
+#include <qhash.h>
+#include <qlist.h>
+#include <qpair.h>
+#include <mpxitemid.h>
+
+// FORWARD DECLARATIONS
+class CMPXMedia;
+
+class VideoDataContainer
+{
+public:
+    
+    /**
+     * contructor
+     */
+    VideoDataContainer();
+    
+    /**
+     * destructor
+     */
+    virtual ~VideoDataContainer();
+    
+public:  // from QHash
+    
+    /**
+     * Deallocates all CMPXMedia objects and clear containers
+     */
+    void clear();
+
+    /**
+     * Deallocates and removes item of provided id.
+     * 
+     * @param id media item id
+     */
+    void remove(const TMPXItemId &id);
+     
+    /**
+     * Appends provided media object to container.
+     * If item with same id exists allready, old item is being
+     * removed and replaced by the new item
+     * 
+     * @param media - media object to append
+     */
+    void append(CMPXMedia *media);
+
+    /**
+     * Returns a media object from provided index
+     * 
+     * @param index position of wanted object
+     * 
+     * @return CMPXMedia pointer to media object or null if 
+     *                   object is not found from wanted index
+     * 
+     */
+    CMPXMedia* fromIndex(int index) const;
+  
+    /**
+     * Returns an index of id.
+     * 
+     * @param id item id
+     * 
+     * @return int index of item or -1 if item with provided id is not found
+     */
+    int indexOfId(const TMPXItemId &id) const;
+
+    /**
+     * Returns id of item from provided index
+     * 
+     * @param index potisiotn where to look for item
+     * 
+     * @return id of item or invalid TMPXItemId if item is not found from provided index
+     */
+    TMPXItemId idFromIndex(int index) const;
+
+    /**
+     * returns count of items
+     * 
+     * @return int 
+     */
+    int count() const;
+    
+    /**
+     * Method removes item from data container at provided index and 
+     * appends it into removed buffer.
+     * 
+     * Note that calling this method decreases item count and causes
+     * indexes after provided index to be resynch. This causes callers
+     * index list to be out of sync if not called starting from the 
+     * biggest index
+     * 
+     * @param inteIndex index of item
+     * @return TMPXItemId id of the item marked as removed
+     */
+    TMPXItemId markItemRemoved(const int &itemIndex);
+    
+    /**
+     * Method removes provided items from mRemovedMedia
+     * 
+     * @param itemIds ids of items to be removed. If null, removes all
+     * @return int count of items actually removed
+     */
+    int clearRemoved(QList<TMPXItemId> *itemIds = 0);
+    
+    /**
+     * Method removed provided items from mRemovedMedia and returns them
+     * int actual container
+     * 
+     * @param itemIds ids of items to be restored. If null, restores all
+     * 
+     * @return int count of items actually restored
+     */
+    int restoreRemovedItems(QList<TMPXItemId> *itemIds = 0);
+    
+    /**
+     * Returns item from removed buffer
+     * 
+     * @param itemId id of item to be returned
+     */
+    CMPXMedia* getRemovedMedia(TMPXItemId itemId);
+
+private:
+    
+    /**
+     * Decrements indexes of items in mMediaData by one after
+     * provided items. 
+     * Item iterator is first found based on item id gotten from id list
+     * and items' indexes after that are to be decreased.
+     * 
+     * @param fromindex - index from where to start decreasing  
+     */
+    void decIndexesAfter(int fromIndex);
+    
+private: // data
+    
+    /**
+     * list of media ids used to fetch item thought index.
+     */
+    QList<TMPXItemId> mMediaIds;
+    
+    /**
+     * lookup hash for fetching correct item based on id
+     * Key: item id
+     * value: pair, where first is item index and second is item data
+     */
+    QHash<TMPXItemId, QPair<int, CMPXMedia*> > mMediaData;
+    
+    /**
+     * lookup hash for media items that are deleted, but not yet completely
+     * removed from the filesystem.
+     */
+    QHash<TMPXItemId, CMPXMedia*> mRemovedMedia;
+
+};
+
+#endif  // __VIDEODATACONTAINER_H__
+
+
+    
+
+