storagemodelbase.h

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/******************************************************************************
 *
 *  Copyright 2008 Szymon Tomasz Stefanek <pragma@kvirc.net>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *******************************************************************************/

#ifndef __MESSAGELIST_CORE_STORAGEMODELBASE_H__
#define __MESSAGELIST_CORE_STORAGEMODELBASE_H__

#include <QAbstractItemModel>

#include <messagelist/messagelist_export.h>

namespace Akonadi
{
class MessageStatus;
}

namespace MessageList
{

namespace Core
{

class MessageItem;

class MESSAGELIST_EXPORT StorageModel : public QAbstractItemModel
{
    Q_OBJECT

public:
    explicit StorageModel( QObject * parent = 0 );
    ~StorageModel();

    virtual QString id() const = 0;

    unsigned long preSelectedMessage() const;

    void savePreSelectedMessage( unsigned long uniqueIdOfMessage );

    virtual bool containsOutboundMessages() const = 0;

    virtual int initialUnreadRowCountGuess() const;

    virtual bool initializeMessageItem( MessageItem * it, int row, bool bUseReceiver ) const = 0;

    enum ThreadingDataSubset
    {
        PerfectThreadingOnly,                 
        PerfectThreadingPlusReferences,       
        PerfectThreadingReferencesAndSubject  
    };

    virtual void fillMessageItemThreadingData( MessageItem * mi, int row, ThreadingDataSubset subset ) const  = 0;

    virtual void updateMessageItemData( MessageItem * mi, int row ) const = 0;

    virtual void setMessageItemStatus( MessageItem * mi, int row, const Akonadi::MessageStatus &status ) = 0;

    virtual void prepareForScan() = 0;

    virtual QMimeData* mimeData( const QList< MessageItem* >& ) const = 0;
    using QAbstractItemModel::mimeData;
};

} // namespace Core

} // namespace MessageList

#endif