modelinvariantrowmapper.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_MODELINVARIANTROWMAPPER_H__
#define __MESSAGELIST_CORE_MODELINVARIANTROWMAPPER_H__

#include <QHash>
#include <QList>

#include <messagelist/core/modelinvariantindex.h>
#include <messagelist/messagelist_export.h>

class QTimer;

namespace MessageList
{

namespace Core
{

class ModelInvariantRowMapper;
class ModelInvariantRowMapperPrivate;
class RowShift;

class MESSAGELIST_EXPORT ModelInvariantRowMapper : public QObject
{
    friend class ModelInvariantIndex;

    Q_OBJECT

public:
    explicit ModelInvariantRowMapper();
    virtual ~ModelInvariantRowMapper();

    void setLazyUpdateChunkInterval( int chunkInterval );

    void setLazyUpdateIdleInterval( int idleInterval );

    int modelInvariantIndexToModelIndexRow( ModelInvariantIndex * invariant );

    void createModelInvariantIndex( int modelIndexRow, ModelInvariantIndex * invariantToFill );

    ModelInvariantIndex * modelIndexRowToModelInvariantIndex( int modelIndexRow );

    QList< ModelInvariantIndex * > * modelIndexRowRangeToModelInvariantIndexList( int startIndexRow, int count );

    void modelRowsInserted( int modelIndexRowPosition, int count );

    QList< ModelInvariantIndex * > * modelRowsRemoved( int modelIndexRowPosition, int count );

    void modelReset();

private:
    Q_PRIVATE_SLOT(d, void slotPerformLazyUpdate())

    ModelInvariantRowMapperPrivate * const d;
};

} // namespace Core

} // namespace MessageList


#endif