author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 17 Sep 2010 08:30:05 +0300 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 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: VideoProxyModelGeneric class definition |
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* |
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*/ |
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#ifndef VIDEOPROXYMODELGENERIC_H |
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#define VIDEOPROXYMODELGENERIC_H |
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// INCLUDES |
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#include <qsortfilterproxymodel.h> |
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#include <e32const.h> |
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#include <mpxitemid.h> |
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#include "videocollectionexport.h" |
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#include "videocollectioncommon.h" |
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// FORWARD DECLARATIONS |
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class QTimer; |
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class VideoListDataModel; |
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class VideoCollectionClient; |
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// CLASS DECLARATION |
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class VIDEOCOLLECTION_DLL_EXPORT VideoProxyModelGeneric : public QSortFilterProxyModel |
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{ |
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Q_OBJECT |
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public: |
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/** |
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* Contructor. |
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* |
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* @param QObject parent object. |
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*/ |
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VideoProxyModelGeneric(QObject *parent = 0); |
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/** |
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* Destructor. |
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* |
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*/ |
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virtual ~VideoProxyModelGeneric(); |
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/** |
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* Initializes model. Sets the given sourceModel as source model |
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* for this proxy model. |
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* |
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* @param sourceModel the source model |
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* |
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* @return int 0 if initialization was ok. |
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*/ |
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virtual int initialize(VideoListDataModel *sourceModel); |
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public: |
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/** |
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* First call opens the collection at the defined level. Subsequent calls only change the level. |
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* This starts populating the model data from the MyVideos collection plugin. |
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* |
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* @param level The level where the collection is opened. |
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* @return 0 if opening was successful, negative if not. |
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*/ |
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int open(VideoCollectionCommon::TCollectionLevels level); |
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/** |
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* Starts sorting. If async parameter is defined as true uses idle timer: |
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* starts timer with zero interval. When system has time to run timer sort() |
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* -method is called. If async is false, then the sort() -method is called |
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* immediatelly. |
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* |
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* @param sortingRole The role that sorting is done by. |
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* @param sortingOrder The sorting order, e.g. ascending or descending. |
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* @param async Defines if the sorting is done asyncronously or not. Default |
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* is true. |
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*/ |
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void doSorting(int sortingRole, Qt::SortOrder order, bool async = true); |
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/** |
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* To get current actice sorting parameters of the model |
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* |
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* @param sortingRole The role that sorting is done by. |
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* @param sortingOrder The sorting order, e.g. ascending or descending. |
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*/ |
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void getSorting(int &sortingRole, Qt::SortOrder &order); |
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/** |
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* Method to delete items at provided indeces |
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* |
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* @param indexList list of indeces. |
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* @return int 0 succeeds, -1 does not succeed. |
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*/ |
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int deleteItems(const QModelIndexList &indexList); |
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|
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/** |
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* Opens the defined item. This is quite abstract as depending |
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* on the type of the item, the behaviour or result could be |
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* quite different. |
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* |
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* @param item id id of the item to be opened |
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* @return int 0 succeeds, <0 if opening does not succeed. |
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*/ |
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virtual int openItem(TMPXItemId mediaId); |
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|
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113 |
/** |
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* Return to collection level |
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* |
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*/ |
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int back(); |
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|
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119 |
/** |
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* Starts fetching full details for the defined item. |
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* |
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* @param index index of the item from where to get details from |
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* @return int 0 succeeds, < 0 if detail fetching startup does not succeed. |
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*/ |
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int fetchItemDetails(const QModelIndex &index); |
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|
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/** |
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* Method checks that model exists and asks for mpx id from |
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* given object. |
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* |
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* @param index index of the item in UI. |
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* @return TMPXItemId mpx id if succeeds TMPXItemId::InvalidId() in case of error |
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* |
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134 |
*/ |
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const TMPXItemId& getMediaIdAtIndex(const QModelIndex &index) const; |
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|
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137 |
/** |
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* returns qmodelindex of item id provided. |
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* |
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* @param item id |
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* @return QModelIndex; |
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*/ |
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QModelIndex indexOfId(const TMPXItemId &id); |
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144 |
|
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145 |
/** |
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* Method checks that model exists and asks for file path from |
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* given object. |
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* |
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* @param mediaId id of the item. |
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* @return QString file path if succeeds, empty string in case of error. |
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* |
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*/ |
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QString getMediaFilePathForId(const TMPXItemId &mediaId); |
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|
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/** |
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* Add a new album. |
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* |
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* @param title, Album title. |
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* @param mediaIds, Media items to add in the album. |
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* @return TMPXItemId id of created album TMPXItemId:::InvalidId() in case of failure |
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*/ |
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TMPXItemId addNewAlbum(const QString &title); |
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|
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/** |
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* Remove an album. |
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* |
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* @param indexList, list of album indexes to be removed. |
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* @return 0 if no errors. |
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*/ |
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int removeAlbums(const QModelIndexList &indexList); |
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|
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/** |
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* Add items in an existing album. |
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* |
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* @param albumId, Album where to add items. |
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* @param mediaIds, list of item ids |
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* @return 0 if no errors. |
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*/ |
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int addItemsInAlbum(TMPXItemId &albumId, const QList<TMPXItemId> &mediaIds); |
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|
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/** |
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* Removes items from existing album. |
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* |
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* @param albumId, Album where to add items. |
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* @param mediaIds, list of item ids |
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* @return 0 if no errors. |
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*/ |
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int removeItemsFromAlbum(TMPXItemId &albumId, const QList<TMPXItemId> &mediaIds); |
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|
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/** |
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* Renames a video or user defined colletion. |
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* |
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* @param itemId, id of item to be renamed. |
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* @param newTitle, New title for the item. |
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* @return 0 if no errors. |
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*/ |
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int renameItem(const TMPXItemId &itemId, const QString &newTitle); |
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|
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/** |
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* Resolves duplicate album names and returns the resolved name. |
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* 'New collection' -> 'New collection (1)' -> 'New collection (2)', etc. |
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* |
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* @param albumName, Name specified by the user. |
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* @return Resolved name given to the album. |
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*/ |
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QString resolveAlbumName(const QString& albumName) const; |
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/** |
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* sets item id filter used in generic proxy model |
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* while filtering rows. |
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* |
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* If provided filterValue -flag is true, we filter off items that |
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* do not exist in container indicated as itemId. |
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* If false, filtering works other way around. |
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* |
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* |
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* @param filterValue item id used as filter |
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* @param filterValue |
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*/ |
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virtual void setGenericIdFilter(const TMPXItemId &itemId, bool filterValue); |
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/** |
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* Set album in use and invalidates filtering. |
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* |
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* @param albumId album id |
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*/ |
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virtual void setAlbumInUse(const TMPXItemId &albumId); |
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/** |
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* Gets the currently opened item. |
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* |
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* @param None. |
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* @return TMPXItemId. |
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*/ |
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virtual TMPXItemId getOpenItem() const; |
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signals: |
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/** |
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* Signal to be emitted if detail fetching started ok |
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* |
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* @param index, index of the item |
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*/ |
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void shortDetailsReady(TMPXItemId itemId); |
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/** |
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* Notifies that model has been sorted. |
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*/ |
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void modelSorted(); |
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protected: |
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/** |
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* Compares items based in the role setted before sorting. From QSortFilterProxyModel. |
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* |
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*/ |
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virtual bool lessThan(const QModelIndex & left, const QModelIndex & right) const; |
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/** |
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* Filtering functionality. Called by the FW. From QSortFilterProxyModel. |
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* |
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* @param source_row row to check |
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* @param source_parent row's parent |
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* |
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* @return bool row accepted(true) or not accepted(false) |
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*/ |
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virtual bool filterAcceptsRow(int source_row, const QModelIndex & source_parent) const; |
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/** |
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* Connects all signals emitted from or throught this object. |
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* |
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* @return bool |
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*/ |
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virtual bool connectSignals(); |
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/** |
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* Disconnects all signals. |
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*/ |
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virtual void disconnectSignals(); |
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/** |
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* Does actual sorting and emits sortingReady. |
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* |
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*/ |
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virtual void processSorting(); |
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private slots: |
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/** |
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* Timeout slot for zero timer. Stops timer and calls processSorting. |
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* |
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*/ |
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void processSortingSlot(); |
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protected: |
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/** |
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* Pointer to the actual model. |
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* Not owned. |
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*/ |
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VideoListDataModel *mModel; |
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/** |
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* Collection client. |
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* Not owned. |
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*/ |
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VideoCollectionClient *mCollectionClient; |
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/** |
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* Currently open level. |
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*/ |
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VideoCollectionCommon::TCollectionLevels mLevel; |
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/** |
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* Item id used as filter if model type is generic model. |
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*/ |
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TMPXItemId mGenericFilterId; |
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/** |
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* Flag used. |
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*/ |
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bool mGenericFilterValue; |
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/** |
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* Timer object. Owned. |
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*/ |
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QTimer *mIdleSortTimer; |
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/** |
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* Sort role to be setted after idle timer time outs for sorting to be able to be executed. |
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*/ |
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int mWantedSortRole; |
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/** |
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* Sort order (ascending or descending). |
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*/ |
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Qt::SortOrder mWantedSortOrder; |
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/* |
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* Default sort role for the model. |
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*/ |
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int mDefaultSortRole; |
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}; |
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#endif // VIDEOPROXYMODELGENERIC_H |