1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 #ifndef DATAPROVIDERHELPER_H

    18 #define DATAPROVIDERHELPER_H

    19 

    20 #include <hgwidgets/hgdataprovidermodel.h>

    21 #include <QList>

    22 #include <QPair>

    23 

    24 class DataProviderHelper : public HgDataProviderModel, public HgDataProviderModelObserver

    25 {

    26     Q_OBJECT

    27 

    28 public:

    29     DataProviderHelper(int size =1200, QObject *parent = 0);

    30     ~DataProviderHelper();

    31 

    32 //from HgDataProviderModel

    33     virtual void doReleaseData(QList<int> list, bool silent);

    34     virtual void doRequestData(QList<int> list, bool silent);  

    35     virtual QVariant defaultIcon() const;

    36     virtual void doResetModel();

    37         

    38 //from QAbstractItemModel

    39     virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);    

    40     virtual bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles);

    41     

    42 //for testing

    43     void testClearCache();

    44     void testNewItem(QList< QPair< QVariant, int > >* list, bool silent);

    45     void testNewItem(QPair< QVariant, int > item, bool silent);

    46     bool testUpdate(int pos, QList< QPair< QVariant, int > >* list, bool silent);

    47     bool testUpdate(int pos, QVariant obj, int role, bool silent );

    48     void testRemoveItems(int pos, int size = 1);

    49     void testRemoveItem(int pos);

    50     void testInsertItem(int pos, QPair< QVariant, int > item, bool silent);

    51     

    52     QList< QPair< int, int > > getObserverDataUpdated();

    53     

    54     QList< QPair< int, int > > getSignalDataUpdated();

    55     QList< QPair< int, int > > getSignalRowsAboutToBeInserted();    

    56     QList< QPair< int, int > > getSignalRowsInserted();

    57     QList< QPair< int, int > > getSignalRowsAboutToBeRemoved();    

    58     QList< QPair< int, int > > getSignalRowsRemoved();

    59     bool getSignalAboutToBeReset();

    60     bool getSignalReset();    

    61     

    62     QList<int> getLastRelease();

    63     QList<int> getLastRequest();    

    64     

    65     void testReleasePixmap(int idx);

    66     QVariant testCreateIcon(int index, QPixmap aPixmap);    

    67     

    68     void testEmitDataChanged(QModelIndex from,QModelIndex to);

    69     void testEmitHeaderDataChanged(Qt::Orientation orientation, int first, int last);

    70     void testEmitRowsInsert(QModelIndex parent,int from,int to);

    71     void testEmitColumnsInsert(QModelIndex parent,int from,int to);

    72     void testEmitRowsRemove(QModelIndex parent,int from,int to);

    73     void testEmitColumnsRemove(QModelIndex parent,int from,int to);

    74     void testEmitLayoutAboutToBeChanged();

    75     void testEmitLayoutChanged();

    76     void testEmitModelAboutToBeReset();

    77     void testEmitModelReset();

    78     

    79 //from HgDataProviderModelObserver

    80 public:

    81     virtual void dataUpdated(int from, int to);

    82 

    83 private slots:

    84     void slotDataUpdated(QModelIndex,QModelIndex);

    85     void slotRowsAboutToBeInserted(QModelIndex,int,int);

    86     void slotRowsInserted(QModelIndex,int,int);

    87     void slotRowsAboutToBeRemoved(QModelIndex,int,int);

    88     void slotRowsRemoved(QModelIndex,int,int);

    89     void slotModelAboutToBeReset();

    90     void slotModelReset();

    91 

    92 private:

    93     QVariant mDefaultIcon;

    94     QList< QPair< int, int > > mObserverDataUpdated;

    95     

    96     QList< QPair< int, int > > mSignalDataUpdated;

    97     QList< QPair< int, int > > mSignalRowsAboutToBeInserted;    

    98     QList< QPair< int, int > > mSignalRowsInserted;

    99     QList< QPair< int, int > > mSignalRowsAboutToBeRemoved;    

   100     QList< QPair< int, int > > mSignalRowsRemoved;

   101     bool mSignalAboutToBeReset;

   102     bool mSignalReset;    

   103     QList<int> mLastRelease;

   104     QList<int> mLastRequest;

   105     

   106 };

   107 

   108 #endif // DATAPROVIDERHELPER_H